JPH01198730A - Camera - Google Patents

Abstract

PURPOSE:To prevent color balance turbulence in advance by outputting a first signal when photographing is not suitable in daylight but flash photographing is used. CONSTITUTION:First discriminating means b17, b18, and EO31, which discriminate whether the photographing suitable in daylight is performed or not and a second discriminating means J31 which discriminates whether the flash photographing is performed or not are provided. When it is discriminated that the photographing suitable in daylight is not performed by means of the first discriminating means b17, b18, and EO31, and when it is discriminated that the flash photographing is performed by means of the second discriminating means J31, an outputting means AN61 which outputs the first signal is provided. Thus, a camera which prevents the color balance turbulence in advance is obtained.

Description

[Detailed description of the invention] 12 deaths 1- The present invention relates to a camera capable of flash photography.

I'm confused! IU (Various types of cameras capable of flash photography have been known in the past.

On the other hand, photography is not only performed under daylight, that is, outdoors, but also indoors (for example, under a tungsten light source). However, since the color temperature characteristics of the light source differ between outdoors and indoors, the color balance will be disrupted if you take pictures in the same way outdoors and indoors. Therefore, a color temperature correction filter is used or the imaging means is changed between outdoor photography and indoor photography to prevent color balance from being disturbed.

The problem that some of them are trying to solve is that they often take pictures with flash light. The color temperature characteristics of flash light are almost the same as natural light, ie, daylight. Therefore, if 7-lash photography is performed with the color balance set to be appropriate for indoor photography, the color balance will be disturbed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a camera that can solve the above problem α and prevent color balance from being disturbed.

In order to achieve this purpose, the camera of the present invention includes the first step of determining whether or not photography is suitable for daylight conditions.
a second determining means for determining whether or not flash photography is to be performed; and the first determining means determine that photographing suitable for daylight is not performed; and output means for outputting the first signal when the second determination means determines that flash photography is to be performed.

■ In the camera of the present invention having the above configuration, it is determined whether or not photography is suitable for daylight conditions, and it is also determined whether photography is flash photography; When flash photography is in progress, the first signal is output.

Large 111 $1 The figure shows various data of the film (F) as the first frame (Fl)
This figure shows an example of holes (IH) to (EH) provided at the tip in front of the position of signal holes (hereinafter, signal holes (IH) to (EH) are representative). FIG. 2 is an enlarged view of a part of FIG. 1 showing the positional relationship of time (represented by (SH)).

As shown in FIG. 2, the signal hole (SH) is provided between two par 7 orifices (PH) adjacent to each other in the film feeding direction, and above the upper end of the par 7 orifices.

In FIG. 1, the hole (IH) indicates the start of data from the signal hole (SH), and the hole (AH) is a 5-bit hole in which film sensitivity data is set. In this example, “10
The data is "101". (CH) is set to data corresponding to the number of frames taken on the film. In this example, it is "01". (YH) is the year of expiry date data. In this example, “001” is set.
10". The topmost via 1 of this data is 8
It is "0" in the 00s and "1" in the 1990s. The lower 4 bits are a binary food of θ~9. Therefore, this example shows the year 1986. (MH) is set with the month data of the expiry date data, and indicates 1 to 12 with a 4-bit binary code.

In this example, it is "1001", which corresponds to September. (EH) is a hole indicating that the signal hole (SH) has ended.

FIG. 3 is a block diagram showing the entire camera to which the present invention is applied. (El) is a power supply battery, (SWI) is a photometric switch, and the transistor (
BT, ) is for self-holding. (1) is a constant voltage source, and when the switch (5WI) is opened and the transistor (BT
, ) operates when conductive.

(3) is a well-known photometry, arithmetic and display circuit, and the terminal (
A film sensitivity signal is input from terminal (b).
An exposure time signal is output from , and an aperture value signal is output from (c). The switch (sw) is a release switch,
(5) is exposure control 8! This is a release circuit of the structure, and the specific internal circuit is shown in FIG. (BT,) is a power supply transistor, (Mg,) is a release magnet whose core is a permanent magnet, and when the electric charge charged in the capacitor (C1) is turned on by the transistor (BTs), the magnet (Mg+) is activated. A discharge is made through the coil and the exposure control mechanism is released. (7) is the terminal (b”)
This is a well-known exposure control circuit that performs exposure control based on an exposure open signal and an aperture value signal from t(0).

(SWs) is a switch that is closed when the exposure control operation is completed, and is opened when the charging of the exposure control PI3 structure is completed. (SW,) is a switch that is opened when a film is loaded and closed when no film is loaded, and is provided, for example, at the film insertion portion of the spool. (5Ws) is a switch that is closed when the back cover is closed, and (SWz) is a rewind switch that is manually operated.

(9) is the terminal (f) t(i) t(j) ,'(k)
Based on the signals from (1), this circuit has functions such as winding the film, reading the signal hole (SH) of the film, skipping film feed, film counter, and rewinding the film. is tjS5 figure.

This will be described later based on FIG. When the film is attached, the terminal (1) is "Low" and the thyristor (SCR, ) is non-conductive.

Then, a "Higb" pulse is output from the terminal (q). As a result, the transistor (BT, , ) becomes conductive, the relay magnet (Mg: +) works, and the switch (
SW+3) is closed, and furthermore, the constant voltage source (11) is operated, and power supply to the motor (Ml) is started. Furthermore, since the base current of the transistor (BT, , ) is supplied through the diode (D, ), the terminal (q) becomes “Low”.
The conduction of the transistors (BT, . . . ) is maintained even if Here, the diode (DI) t (D3) is provided to prevent the influence of the output of the terminal (q) and the constant voltage source (11). At this time, Cyrisk (SCR,)
is non-conducting, so there is a resistor (R1) in series with the motor (M).
) is now connected, the motor (M) will rotate at a low speed, and the film feed will also be at a low speed. This operation is maintained for a certain period of time. By doing this, when you load the film with the back cover open, the film will be fed at low speed for a certain period of time, allowing you to confirm that the film has been loaded properly and to ensure that the film is not loaded properly. This prevents malfunctions such as the back cover being closed and the film not being fed.

When low-speed feeding for film mounting is performed for a certain period of time, a "High" pulse is output from the terminal (r), the transistor (BT, ) becomes conductive, and the transistor (BTz) becomes non-conductive, and the low-speed emptying occurs. Feeding stops. When the back cover is closed in this state, “HiHI+” is output from the terminal (q) again.
A pulse is output and idle feeding is started. At this time,
Since the terminal (1) is set to High, the thyristor (SCR, ) is conductive and the jump feed is performed at high speed.The jump feed amount at this time is the initial value if the jump feed amount is not preset. If the frame is fed to the position of the image frame and then stopped, and the jump feed amount is preset, the jump feed is performed by the preset amount and then stopped.Jump feed amount preset This is very effective, for example, when loading film that has been partially shot.

From then on, like a normal motor drive device, the exposure control mechanism is charged and the film is wound up every time the photographing of the - frame is completed, and when the photographing of the final frame of the film is completed, the circuit (9) The internal motor automatically rewinds the tape, and once the rewind is complete, the series of operations ends. Furthermore, even when the film has not been wound to the final frame, if the switch (SW, . . . ) is manually closed, the film is rewound. In addition, at the beginning of rotation of the motor (M,), the exposure control R structure is charged, and when charging is completed, film winding is performed, and when charging is completed, the motor (M,
) continues to rotate as the mechanism continues to wind the film.

Ru.

(19) surrounded by a broken line indicates the output part of film sensitivity data. (13) is a circuit that outputs film sensitivity data preset by the photographer. (15) is a data selector, and when the film sensitivity data from the signal hole (SH) of the film shown in Figure 1 is read, "
Based on the signal from the terminal (p) that becomes "High", data is output from the data output terminal (FSD) of the circuit (9), and when the terminal (p) is "Low", that is, the film sensitivity data is When it is not being read, the preset film sensitivity data from the circuit (13) is output.(17) is a D/A conversion circuit that converts the data from the data selector into an analog signal. , 1 light, arithmetic operation 9, the display circuit (3), and the data imprinting circuit (21).In the drawings below, the signal lines with diagonal lines indicate multi-bit signals.

(21) is a data imprinting circuit, and a switch (S
It is only possible to operate when W15) is closed.

The data imprinting section of this circuit (21) is shown in FIG.
It is provided at the position shown in 4). This is because, as will be described later, imprinting is started based on a signal from the terminal (u) indicating that winding of the film has been completed after the end of photography. In this case, since imprinting is performed from the emulsion side of the film, the imprinting time can be controlled to a time corresponding to the film sensitivity. (23) is a clock circuit, the data terminal (TD) outputs data for copying, and the (TP) outputs a plurality of clock pulses for timing control. Note that the clock circuit (23) has a liquid crystal display section that displays data for imprinting on the outside of the camera, and the switch (SW2.) is a switch that is closed when illuminating this display section.

(25) compares the expiry date data set on the film shown in Figure 1 (FDD) with the year and month data from the clock circuit (23), and This is a warning circuit that emits a warning sound if the expiration date has expired.

(E2) is a power supply battery for the data imprinting circuit (21), the clock circuit (23), and the warning circuit (25). Specific circuit examples of the above (21), (23), and (25) are shown in FIGS. 27, 28, 29, and 30.

(27) is a circuit for displaying film sensitivity.

This circuit uses the data input from the data selector (15) to set the commonly used film sensitivity (for example, ASAlo
If the data corresponds to a film other than 0 and ASA400), the sensitivity value will be displayed blinking, and if it is a commonly used film sensitivity, it will remain lit. Further, this display is also performed by a liquid crystal, and the switch (SW23) is a switch for illuminating this display section. A specific circuit example of this circuit (27) is shown in FIG.

FIG. 4 shows a specific example of the release circuit (5) shown in FIG. When the photometry switch (SW, ) is closed and the constant voltage circuit (1) starts operating, power is supplied to this circuit, the power-on reset circuit (PR,) operates, and the OR circuit (OR,) is activated. 7 rip 70.2 b (FF,
), reset the release switch (SW3)
is closed, at this time the terminal (e) of the circuit (9) becomes “
If it is "Highb" (a signal that allows release, described later), the output of the AND circuit (AN, ) becomes "Highb", and this rising signal causes the one-shot circuit (O8+) to output "High" for a certain period of time. A pulse is output.

Then, the “L” output of this one-shot circuit (O83)
Based on the falling signal to ow''l
A “Higl+” pulse is output from the circuit (O33), and based on this rise, 7 rip/70 rip (FF,
) is set. This causes terminal (1) to go “High”.
b'', the power supply holding transistor (BT, ) becomes conductive, and the terminal (g) becomes Low'', so the power supply transistor (BT, ) becomes conductive. Furthermore, the pulse from the one-shot circuit (O3) is sent from the terminal (h) to the transistor (BT, ), and the release magnet (Mg1) operates to control exposure 8! The release of the structure is performed. Here, during the output pulse of the one-shot circuit (O8, ), the photometry switch (SW, ) and release switch (SW) are closed almost simultaneously to prevent the release from occurring before the photometry circuit is stabilized. In order to do this, the photometry circuit is kept open for more than a few moments until it is stabilized after being supplied with power.

When the exposure control operation is completed, the switch (5
W5) is closed and the output of the inverter (IN,) becomes “H”.
At this rising edge, a pulse of "HiBl+" is output from the O8 circuit (O8, ), and the pulse of "HiBl+" is output through the OR circuit (OR, ) to 7 rip and 70 rip (FF, ).
is reset. When the film winding is completed and the terminal (e) becomes "Hi8h", if the relay X switch (SW) remains closed, the output of the AND circuit (AN, It becomes "High", the release is performed again, and the exposure control operation is performed. That is,
Continuous shooting is performed. In addition, if the release switch (5Wi) is being heard when terminal (e) goes High, camera operation will stop.In addition, in this circuit diagram, from the power-on reset circuit (PR,) “High”
While the pulse is being output, the AND circuit (AN,)
It is desirable to manually input the output via the inverter to an AND circuit (AN) so that the output is "Low".

5 and 6 are specific circuit examples of the circuit block (9) in FIG. 3. First, this circuit (9) is directly connected to a power source battery (El) as shown in FIG. Therefore, when the power battery (E,) is installed, the signal generated from the output terminal (po,) of the power-on reset circuit (PR3) becomes the reset signal for each circuit in Fig. f55 and Fig. 6, and further This terminal (po,) and the rewinding start signal (
RWI) is connected to the terminal (PO2) via the OR circuit (ORs).
This is also a reset signal.

First, the operation when no film is attached will be explained. When the exposure control operation is completed, the terminal (f) becomes “Low”.
”, and the one-shot circuit (O8,,) outputs “High
A pulse of ``h'' is output from the terminal (NWI) of the OR circuit (OR).

, ) (Figure 6), a 'High' pulse is output from the terminal (q), the transistor (BT++) shown in figure $3 becomes conductive, and the motor (Ml) operates.Then, when the shutter charge is completed, the switch (SW, ) is opened and the output of the inverter (IN14) becomes “High”.
At this time, the film is not loaded, so switch (
SW, ) is closed and the terminal (FSS) is “High”.
+", so the output of the AND circuit (AN@) is "
The one-shot circuit (
A "High" pulse is output from the terminal (S) from Os+, ), the transistor (BT, ) becomes conductive for a certain period of time, the transistor (BT'Il) becomes non-conductive, and the motor (
Ml) stops rotating. Therefore, when no film is loaded, the motor (Ml) stops when the exposure control mechanism is completely charged, and the film winding Wi mechanism does not operate. In addition, at this time, 7 lip-flops (FF, )
is reset and the Q output (LHT) is "High", so the pulse from the output terminal (q) is also output from the terminal (1) via the AND circuit (AN) (Figure 6). Ru. This pulse causes the thyristor (SCR, ) to conduct, so the current flowing through the motor (Ml) is reduced by the resistance (R
6) and the motor (M,) rotates at high speed.

Next, the operation when the film is attached will be explained step by step. When the film is attached, the switch (SW7>) is opened, the terminal (j) becomes "High", and the output of the inverter (IN,) becomes "High".

At this rising edge, the one-shot circuit (OS) outputs “H”.
igb" pulse is output and the output is 7 rip/70 rip (F
F,) is set and the terminal (LHT) becomes "Low". Also, the timer (T1.) is a one-shot circuit (
Based on the signal from O8s), a certain period of time for empty feeding for film mounting is counted. Furthermore, in response to the falling signal of the output pulse of the one-shot circuit (OS, ), a "Higl+" pulse is output from the one-shot circuit (OS, ), and the signal from this terminal (LWI) is output from the OR circuit (OR+, ) (FIG. 6) is output from the terminal (q), transistors (BT, . . . ) (FIG. 3) are turned on, and empty feeding for film mounting is performed. Also at this time,
The Q output (LHT) of 7 lip/70 tube (FF, ) is L.
ow”, the output (1) of the AND circuit (ANs) (Fig. 6) remains “Low”, and the thyristor (S
CR, ) is not conducting, therefore the current flowing through the motor (Ml) flows through the resistance (R, ) and the motor (M,
) rotates at low speed, and the film is fed at low speed. This is to prevent the photographer from being surprised if the film starts to advance at high speed as soon as the film is loaded, and also to prevent him from feeling uneasy about getting injured at the edge of the film. This was done out of consideration.

When the timer (TI,) finishes counting for a certain period of time, “
A pulse of "HiFIh" is output, and the 7th lip and 70th knob (FF, ) are reset via the OR circuit (OR3), and the 7th lip and 70th knob (FF, ) are set.At this time, the back cover is closed. When the switch (SW, ) is open, the output of the inverter (INz) is “High”, so the pulse from the timer (T1.) is output from the terminal (LWE, ) of the AND circuit (AN3). Output.

This signal is output from the terminal (r) via the OR circuit (OR33) (Fig. 6), and is output from the transistor (BT,
) is conductive while there is a "High" pulse output by the timer (TIE), the transistors (BT, , ) are rendered non-conductive, and the rotation of the motor (Ml) is stopped.

Also, the pulse (L
WI) by 7 Lips 70 Tsubu (FF2,) (6th
) is set, the Q output becomes "Higb", the output of the OR circuit (OR23) becomes "Higl+", and the display circuit (DIt) indicates that the film is being wound.

When the photographer confirms that the film is loaded and closes the back cover, the switch (SW, ) is closed and the output of the inverter (IN, ) becomes 'High', and the 7-rip 7
Since the 0 knob (FF, ) is set, the output of the AND circuit (ANs) becomes 'High'. At this rising edge, a 'High' pulse is output from the one-shot circuit (O81,), and this pulse It is applied to the 7-lip, 70-tube (FF?) via the OR circuit (OR, ), and the 7-lip, 70-tube (FF, ) is set, and the Q output (MD) becomes "Higb". ) output terminal (
The pulse from NWI) is output from the terminal (q) via the OR circuit (OR1s), and the motor (Ml) starts rotating. On the other hand, the Q output (LHT) of the 7-lip, 70-tube (FF) is ``High'', so the terminal (
The pulse from q) is output from the terminal (1) via the AND circuit (AN, ), and is output from the thyristor (SCR, ) in Fig. 3.
conducts and the current flowing through the motor (Ml) is the resistance (R
, ) instead of flowing through the thyristor (SCR, ), the film is fed at high speed. Note that even if the terminal (1) becomes "Lou+", the current of the motor (M, ) maintains the conduction of the cyrisk (SCR+). Also, 7
The Q output (MD) of the Lip 70 tube (FF) is “Hi”
gh"', even if the 7 lip/70 tube (FF23) is reset by the signal from the terminal (PW+), the output of the off circuit (oRzs) will be "High", and the display circuit (DIt) will display the film. It is displayed that the idle feed is being performed.The display device 1 (DIt) continues to display even after the low-speed idle feed is completed since the 7 rip and 70 knob (FF23) are set.

Q output (MD) of 7 rip, 70 rip (FF, ) is “H”
When the signal becomes "high", the transistors (B, T, . . . ) become conductive, and power is supplied to the perforation detection section (33) and the signal hole detection section (35) ((31) surrounded by a broken line).Then, the perforation detection section (33) outputs a pulse train due to the perforation of the film being transported, and the signal hole detection section (35) outputs a pulse train corresponding to the signal hole (SH) shown in figure f51.These two pulse trains Based on the reading circuit (37
) reads various data on the film through the signal holes shown in FIG. Then, the pulse from the signal hole (EH) is output from the reading circuit (37), 7 lip/70 knob (FFs) are set, and the Q output (p) becomes 'Highb'.
''.In addition, the par 7 Olesian a detection section (33),
The signal hole detection section (35) and reading circuit (37) will be described in detail based on FIGS. 7 to 26. Of the data read by the reading circuit (37), data (FND) on the number of frames that can be photographed by the signal hole (CH) is displayed on the display device (DI:l). Further, the film expiration date data (FDD) from the signal hole (YH)t(MH) shown in FIG. 1 is sent to the warning circuit (25) in FIG. 3 via the date circuit (GA). Furthermore, the film sensitivity data from the signal hole (AH) is converted into a code suitable for the camera via a date circuit (GA) and a decoder (DE), and the circuit (19
) is sent to the data selector (15).

If a film without a signal hole (SH) is installed, the signal hole (EH) is output from the reading circuit (37).
Since no pulse is output from
Therefore, all the outputs of the date circuit (GA) are "0", and all the outputs of the detector (DE) are also "O".At this time, the display device ff1
(D1.) should preferably display that a film without a signal hole (SH) is loaded, instead of displaying the number of shots that can be taken with the film.

In the case of a film with a signal hole (SH), when the signal hole (IH) is detected, the terminal ■ of the reading circuit (37) becomes "High", and the date of the AND circuit (ANIs) is opened. , the output of the inverter (INls) becomes “LoI11” and the AND circuit (ANI:l)
's date is closed. When the signal hole (EH) is detected, the signal hole (EH) is connected to the terminal ■ of the reading circuit (37).
A pulse corresponding to H) is output, 7-lip/70-tub (FF, ) is set, and the date of the AND circuit (AN, ) is opened. Then, the Par 7 Olesi 1 detection section (3
The pulse train from 3) is input to a ternary counter (CO5), and the third pulse is output from this counter (COs). This pulse is generated by AND circuit <ANI5)
, 7 rip and 70 rip (
Sent to FF, I) and received 7 rip and 70 rip (FF1.)
is set. On the other hand, in the case of a film without a signal hole (SH), terminal ■ of the reading circuit (37) remains "Low", the date of the AND circuit (AN, 3) is opened, and the AND circuit (AN, s) date is closed. Then, the signal from the par 7 orex 5 detection section (33) is sent to an octal counter (Co) and a binary counter (Co,).
The 16th pulse is output from the binary counter (COz) and is sent to an AND circuit (A N +-) and an OR circuit (OR11).
The signal is sent to the 7-rip 70 pump (FF, ) via the 7-rip 70 pump (F,), and the 7-rip 70 pump (F,) is sent.

When the back cover is closed while the film is being fed at low speed, the switches (SWs) are closed, the date of the AND circuit (AN, ) is closed, and the timer (TI,
The pulse (LWE2) from ) is not output from the terminal (LWE, ) of the AND circuit (AN, ), and the pulse is output from the timer (T1.), and 7 lips and 70 tubes (FF5) are set. At this point in time, the date of the AND circuit (AN,) is open, so the output of this AND circuit (AN,) immediately becomes "High",
The one-shot circuit (OS, , ) outputs a “High” pulse, and the OR circuit (ORy) outputs “HiH1+”.
A pulse is also output. Therefore, in this case, when the low-speed idle feeding for a certain period of time is completed, the high-speed idle feeding operation is immediately started.

(PN) is a data output device that outputs data on the preset number of blank feed frames, and (DI5) is a display device that displays the preset data. When loading a normal film that has not been photographed, the data output device (PN) outputs "OO...0"' data and the output of the NOR circuit (NO3) becomes "High". Therefore, the output of the 7-nd circuit (AN+s) becomes “High” when the 7-rip and 70-rip (FF, ,
h” and the output terminal of the one-shot circuit (O8□) (
A "Higl+" pulse is output from the FWE) and is output from the terminal (r) via the off circuit (0R33) (Fig. 6), stopping the idle feed, and this pulse is then sent to the OR circuit (OR,... ) is output to the output terminal (FLI), the 7-lip prop (FFI5) is set, and the Q output (Fl2) becomes Higl+''.As described above,
The first frame (Fl) is rapidly fed to the position of the photographing angle of view.

When a partially photographed film is loaded, data for a larger number of frames than the number of already photographed frames is preset in the data output device (PN), and this data is output. At this time, the output of the NOR circuit (NO+) is "Low" and the date of the AND circuit (AN, ,) is closed, and the output of the inverter (IN,,) is "Higl+" and the AND circuit (AN, ,) is opened.Then, 7 lip/70 knob (FFz) is set and the AND circuit (AN
, ) is opened, the pulse train from the par 7 orex 1 detector (33) is sent to the octal counter (COs) via the AND circuit (ANt), A pulse corresponding to one par 7 olethane a is output every minute), and this pulse is sent to the film counter (CO, ). The counter (CO2) outputs data (FCD) corresponding to the number of frames of the film wound up by the blank feed, and this data (FCD)
) and the data output of the preset number of frames vtr11 (P
The data from N) are compared by a comparator (COM), and when the two match, the output becomes "High" and the AND circuit (AN) is activated.

The output of 7) becomes "Higl+". This causes the output terminal (PWE) of the one-shot circuit (O8, , ) to go high.
igl+” pulse is output and the circuit is turned off (OR33)
(FIG. 6) and is output to the terminal (r) to stop the idle feeding. On the other hand, this pulse is output to the terminal (FL, ) via the off circuit (OR03), and is output to the terminal (FL,
F+s) is set and the Q output (Fl2) becomes “High.”
In the case of a film that has been shot halfway, such as 0 or more, the frame that has not been shot is automatically fed forward until it reaches the position of the shooting angle of view. This eliminates the complication of having to put the cap on and take multiple aerial shots while feeding the film, making it possible to create a camera that is extremely easy to load film with.

The operation when the number of blank feed frames is erroneously preset to be greater than the number of recordable frames of the film will be explained.

The output pulses (pcs) of the octal counter (Cot) are converted into 7 ripples and 70 ripples (FF,
, ) to reset it, and also to the timer circuit (TIE) to start counting a certain period of time each time the pulse from the terminal (PO2) falls. In addition, at the time when this empty feed is being performed, there are 7 rip
Q output (Fl2) of 70 tube (FF1.) is “Low”
Therefore, the pulse from the terminal (pcs) is passed through the AND circuit (A
Nt9) is not output. When the film is wound up to the final frame by empty feed, the film is stretched.
The pulse signal due to the par 7 oresin 1 is no longer output from the par 7 oresian detector (33). Therefore,
Even if a certain period of time elapses from the pulse output from the output terminal (PO2) of the counter (Cod) before the film is stretched, the next pulse will not be output from the terminal (pcs).

Therefore, the pulse from the timer (Tls) is 7 rips.
Sent to 70 Tsubu (FFat) and 7 lip 70 Tsubu (
FFat) is set and the Q output becomes ``High''.

On the other hand, at this time, the output of the comparator (COM) is Low.
”, the 7-rip/70-tub (FF1.) remains reset and the Q output is “High 11.” Therefore, the output of the AND circuit (AN23) is “High.”
gh'', a pulse of H'igb'' is output from the output terminal (AWE) of the one-shot circuit (O82,), and the pulse of H'igb'' is output from the terminal (r) via the OR circuit (0R32) (plS6 diagram).
is output and the hoisting operation stops. Further, when the output of the tend circuit (AN2) becomes "Higl+", the warning device (WA, ) is activated to warn that an incorrect value has been preset.

Next, a normal winding operation will be explained. When the idle feed is completed, the pulse from the output terminal (FLl) of the OR circuit (OR, 3) sets 7 rip/70 lub (FF1s) and the Q output (FL2) goes "High". When the operation of the exposure control mechanism is completed and the switch (SWs) shown in Fig. 3 is closed, the terminal (f) becomes "Low" and the output of the inverter (IN, 2) becomes "High". Te772
A “Higl+” pulse is output from the 1171 circuit (O3+j), and the output terminal (NWI) of the OR circuit (OR?)
A pulse is output from. This signal is an OR circuit (OR,
9) and an AND circuit (AN, ) (both shown in Figure 6), it is output from the terminal (q) and <1>, and the motor (M
, ) rotate at high speed to charge the exposure control mechanism and wind the film. In addition, the 7 lip prop (FF, ) is set by the pulse from the terminal (NWI), the transistor (BT, s) becomes conductive, and the per 7 oscillator a detecting section (33) operates, and the pulse train due to perforation is activated. is sent to the octal counter (CO,) via the AND circuit (AN)), and the 8th par 7 oresian a
A pulse of 1 is output from the terminal (pcs), the film counter (CO7) counts up by 1, and the display device CDI corresponding to the output data of the counter (CO2) is outputted from the terminal (pcs).
, ) is displayed. Furthermore, since the terminal (FL2) is set to "Higb", the pulse from the terminal (pcs) is output from the AND circuit (AN, , ), and at the falling edge of this pulse, the one-switch) circuit (O81, ) is output. A pulse is output from the output terminal (NWE) and the off circuit (O
It is output from the terminal (r) via R, 3) (Fig. 6), and the rotation of the motor (Ml) is stopped. Furthermore, the terminal (N
The pulse from WE) goes to the off circuit (OR3,) (Figure 6)
This signal is also outputted from the terminal (u) via the terminal (u), and this signal is sent to the data imprinting circuit (21) shown in FIG. 3, and data imprinting is started based on this signal.

Next, the winding operation of the final piece will be explained. Exposure control 8
! When the operation of the structure is completed and a pulse is output from the one-shot circuit (O813), the 7-linop and 70-tube (FF, ) are reset via the OR circuit (OR1, ), and the Q output becomes "High". Become. Further, the 7-lip/70-tub (FF1.) is set by a signal from the terminal (FL, ), and the terminal (FL2) becomes "Higb", opening the date of the AND circuit (AN2+). Further, at the rising edge of the pulse from the one-shot circuit (O81,), the timer (TI,) starts counting a certain period of time. When I tried to wind the last frame, the film was stretched, and the counter (COa) did not output pulses from the 8 par 7t ratios, and the timer (TI:l) finished counting for a certain period of time and went high. Until the pulse is output, the pulse is not output from the output terminal (pcs) of the counter (Cot). Therefore, the pulse from the timer (TI3) is output from the output terminal (EWE) of the AND circuit (AN2.), and the OR circuit It is output to the terminal ('') through the circuit (OR, 3) (Figure 6) and winding is stopped.Furthermore,
The pulse from the terminal (EWE) is passed through the OR circuit (OR3,) (
The signal is also output to the terminal (u) via the terminal (FIG. 6), and the data imprinting circuit (21) shown in FIG. 3 starts operating.

Furthermore, the pulse from the terminal (EWE) causes 7 rip and 70
The knob (FF2.) (Fig. 5) is set and the Q output is “
Hi8h", and the warning device (W A 2) operates to warn that the film has been wound to the final frame. Furthermore, the timer circuit (W A 2) is activated by a pulse from the terminal (EWE).
TI,) operates and starts counting a certain period of time. This time is longer than the time required for data imprinting. Then, when the - fixed time count ends, the terminal (N
A "High" pulse is output from RW) to reset the 7-rip/70-rip (FF2.), and at the same time, a rewinding operation, which will be described later, is started. In the case of this final frame, the photographic frame has not been completely rolled up, so the position where the data is imprinted is different from that of the other frames, but the data is reliably imprinted.

“High” from the output terminal (NRW) of the timer (TI,)
When the pulse of “h” is output, the OR circuit (OR3,>
A pulse is output from the output terminal (RWI) of (Fig. 6), and is passed through the transistor (BT, . . . through the diode (D7)).
) becomes conductive, the relay magnet 7 (Mgs) operates,
The switch (SW, t) is connected to the power supply and the motor (M
, ) starts rotating and the unwinding operation begins, and a base current for maintaining continuity is supplied to the base of the transistor (BTl9) through the diode (D, ), and the conduction of the transistor (BTl, ) is maintained. be done. In addition, off-circuit (
A pulse from the output terminal (RWI) of OR31) sets the 7-rip/70-rip (FF31), opens the gate of the AND circuit (AN29), and opens the display device (
D1. ) indicates that rewinding is being performed. Then, the film comes off the spool, the switch (SW, ) (Fig. 5) closes, and the terminal (j) becomes "Low".
”, and the output (FSS) of the inverter (IN,) becomes ”
A “High” pulse is output from the reset circuit (O823) to “Higb'”, and the AND circuit (AN
29) is output from the output terminal (RWE) of the transistor)
(BT, , ) becomes conductive, transistor (BT, 9) becomes non-conductive, magnet) (Mgs) becomes inactive, switch (SW, 7) is connected to ground, and motor (M,
) and transistors (BT, RI) and the rewinding operation is stopped.As mentioned above, the pulse from the output terminal (RWI) of the OR circuit (OR, , ) is output from the OR circuit (ORs) ( 5) and output from the terminal (D02), which serves as a reset signal for many circuits.

Next, the operation when manually closing the switch (SW, . . . ) (FIG. 6) and rewinding will be described. Switch (SW
z) is closed, the terminal (1) becomes "Low" and the inverter (INls) becomes "High"1. When this switch (SW, , ) is closed, if no film is attached, the switch (SW7) is closed, the terminal (FSS) becomes "Higb", and the inverter (IN2
．． ) is 'Low', so it is an AND circuit (AN2S)
The output remains "Lo-" and no rewinding operation is performed. When the film is attached and the switch (SW, , ) is closed, the output of the AND circuit (AN2S) becomes “High”
The one-shot circuit (O825
) outputs a “Hight+” pulse and 7 rip.
70 knobs (FF2.) are set, and the Q output is “Hi8.”
1+”. Output of NOR circuit (No. 5) (RWP, )
is open when the output of the OR circuit (ORza) is “High”,
While the 7-lip/70-tub (FF27) is set, and the +Z terminal (i) is "High", it becomes "LO-" and the date of the AND circuit (ANzt) is closed.

To explain the period during which the output of the NOR circuit (NO5) is 'Low' in accordance with the operation of the camera, it is a 7-rip-prop (7-rip-prop) period in which low-speed dry feed starts and high-speed dry feed starts. FF2.) is set), while high-speed dry feeding and normal winding are being performed (terminal (MD)
is “Highb”), and until the end of winding to the final frame and the end of rewinding (7 rip, 70 rip (F
F27) is set (open), and while the exposure control operation is being performed (while terminal (i) is "High"')
It has become. Therefore, during this period, 7 lips and 70 tubes (
Even if FFzs) is set, the AND circuit (AN27) does not become "Higl+".

If 7 rip/70 rip (FF2.) is set in a case other than the above, the output of the AND circuit (AN27) will be “H”.
Then, a “High” pulse is output from the output terminal (HRW) of the one-shut circuit (O827) and the rewinding operation starts.The rewinding is completed in the same way as normal rewinding. The film is stopped when it comes off the spool and a pulse is output from the one-stop circuit (O82,).

In addition, 7 lips and 70 lips (FF, , ) are OR circuits (O
Since it is reset by the falling signal of the pulse from the AND circuit (ANzs), the pulse from the OR circuit (ORzs) is reliably output from the output terminal (RWE) of the AND circuit (ANzs).

Next, the release prohibition signal from the terminal (e) described in FIG. 4 will be explained. This is as shown in Figure 6.
While the output of the AO circuit (OR23) is "Higb" and while the 7 lip prop (FF2s) is set,
The output (e) of the NOR circuit (NOs) becomes "Low" and no release is performed. The output of the off-circuit (OR23) is "HigIt" during the period from when the film is loaded until the end of high-speed empty feeding, and during the period when normal winding is performed. On the other hand, 7 lip-flops (F
If the terminal (AW
E) until the "Higl+" pulse is output and the rewinding is completed, or after the rewinding is manually started and the rewinding is completed, or when the rewinding is automatically started and the rewinding is completed. This corresponds to the period up to that point.

Winding and rewinding are indicated by the display devices (DI?) and (DI9) in FIG. 6, but this display device is omitted and the backflow prevention diode shown in FIGS.
If DO) and (D,) are light emitting diodes, then
The light emitting diode (D,) lights up when winding, and the light emitting diode (D,) lights up when rewinding, and can be used both to display winding and rewinding.

FIG. 7 is a perspective view of the detection device of the perforation detection section (33) and signal type detection section (35) of FIG. 5.

8 is a plan view of the detection device viewed from the crimp plate (49) side, and FIG. 9 is a plan view of the detection device taken along the dashed-dot line I-I in
FIG. (41), (43
) are electrical contacts that the brushes (59) and (61) come into contact with when there is a par 7 oresian (PH), and as shown in Figures 8 and 9, It is provided to be shifted by 1.5 pitches from the pitch. (51
) is an electrical contact that the brush (61) comes into contact with when there is a signal hole (SH). These brushes (59) and (f31) are fixed with a member (45) that is integrated with a leaf spring (47) to attach the crimp plate (49), and this member (45) is grounded. Therefore, the brushes (59) and (61) are also grounded. In FIG. 7, (53) is the screen frame of the camera, and (54) is the imprinting section of the data imprinting device (21') described in FIG. 3. (55) is a sprocket, and (57) is a spool. As shown in Figures 8 and 9, each electrical contact (41), (43), (51)
are connected to the power supply through resistors, respectively, and furthermore, inverters (IN25), (TN2.), (IN2-
) is also connected to the input terminal. Therefore, the brushes (59), (61) are connected to the electrical contacts (41), (43),
(51), inverter (IN25), (IN
2? ) and (IN2, ) are configured to output a 'High' detection signal, respectively.

Figure 10 shows a circuit that outputs a perforation signal and a signal hole signal based on the signals from the detection device shown in Figure 7.8.9, and a reading circuit that reads data from the signal hole based on the two signals. ((33) in Figure 5, (
35) and the reading circuit (corresponding to the reading circuit (37)).

Further, FIG. 11 is a time chart showing waveforms of various parts when reading the signal holes in the film shown in FIG. 1 using the circuit shown in FIG. 10.

The operation shown in FIG. 10 will be explained below based on the time chart shown in FIG. 11. When the transistors (BTUs) in Fig. 5 become conductive and power supply starts to the detection parts (33) and (35), the power-on reset 7F circuit (PRs) operates and the power is transmitted through the OR circuit (OR, , , ). 7 lips, 70 tubes (FF
,,) are reset. As the film moves, the inverters (I N,) and (I N2?) send a signal that is half a pitch to the pitch of the par 7 ores 5 in (PH), as shown at IN23 and IH2 in Fig. 11. Two shifted detection signals are output. Of these two signals, the signal from the inverter (IH2,) is 7 rip/70
Connect the inverter (N2) to the set terminal of the knob (FF 3).
The signal from 5) is given to the reset terminal.

Therefore, the 7-rip, 70-tube (FF33) is set by the rising signal of the inverter (IH2), and reset by the rising signal of the inverter (IH2,). This waveform is shown in (F F ii) of FIG. The output waveform of this 7-rip, 70-amp (FF33) is par 7.
It is used as an oleasis signal, and the reason for this configuration is explained below.The brushes (59), (
If the signal that 61) made contact with the electrical contacts (41) and (43) was used as it was, more pulses than necessary would be output due to chattering etc., and even though one par 7t register passed, two or more pulses would be output. This is because it will be detected as if the perforation has passed through.

Therefore, two inverters (I N25), (I N
27) rising signal causes 7 rip and 70 twig (FFf
If you use the signal that resets and sets f3), even if the signals of the inverters (I N 25) and (I N 2?) change after rising, they will still be 7 rip and 70 tb (FF
Since the output of 33) is not affected, one pulse can be reliably obtained for one par 7 ole silane. The signal from the 7-rip prop (FF1.) is output to the counter (cO3), AND circuits (AN7) and (AN9) shown in FIG. 5 mentioned above.

In addition, as described in Figures 5 and 6, the signal hole (EH
) outputs a pulse from the one-shot circuit (O8's) with a signal based on the output of the 7-lip/70-tub (FF, l) set at the rising edge of the 3-way par 7 oscillator 5 signal, and this signal The one-shot circuit (O3,
Film advance is stopped by the pulse from 3). Therefore, the film is stopped with the brush (59) and the contact point (41) in contact with each other through the third par 7 olecitane in the film feeding direction.

In Figure 10, the signal from the signal hole (IH) of the inverter (IH23) is 7 rip, 70 tap (FF'0
) is set, the terminal ■ becomes “Higl+”, and the fifth
While the dates of the AND circuit (AN, S) in the figure are open, the date of the AND circuit (AN13) is closed, and it becomes a circuit operation monitor for film advance for film with signal holes, and performs the above-mentioned operation. conduct.

7 lip / 70 knob (FF3s) is inverter (IH2
, ) is set at the falling edge of the signal from
It is reset at the fall of the perforation signal from the 70 tube (FF3S) (FIG. 11 FF3S). Then, based on the fall of the output of the NAND circuit (NA), that is, the rise of the perforation signal from the 7-rip/70-tube (FF33), the 7-rip/70-tube (
The output of the FF ko,) is sequentially taken into the shift register (sR+), and the taken data is shifted to the terminals (bus) to (bo).Then, the signal from the signal hole (IH) is sent to the terminal (b , ), i.e.,
When the signal from the last hole of the signal hole (MH) is taken into the terminal (bus), the output of the inverter (N2-) becomes "Low", and the output of the NAND circuit (NA1) becomes 7 rip and 70 rip ( “High” regardless of the output of FF33)
h'', and the shift register (SRI) terminal (
The shift operation is stopped in a state in which signals from the signal holes (IH) to (MH) are taken into bo) to (b, , ). Therefore, the terminals (bl) to (b) of the shift register (SRI)
-) is the data "1010101001101001" (Fig. 11, -b, ,) corresponding to the signal hole of the film in Fig. 1, and the reset signal (PO□ ) (film rewind start signal) is held until the signal is input to the reset terminal. Then, when the terminal (bo) becomes “High”, the date of the AND circuit (AN31) is opened, and the signal hole (
The pulse from the inverter (■N2.) caused by・The 70 knob (FF9) is set, and at the fall of the third par 7 Olasian signal from the 7 rip 70 knob (FF,,), the 7 rip 70 knob (FF, ) shown in Figure 5 is set.
FF,...) are set (FF,... in Fig. 11), and the movement of the film is stopped.

Figure f512 is a plan view of a certain type of film.

In the case of this film, a small hole (T1) for film identification is provided between each par 7 oreshi (PH) 4i of the wtpb piece between the par 7 ores and the par 7 ores. Therefore, when such a film is put into a camera that uses the Par 7 Olesian 3 detection device shown in Figures 7 to 10, the small hole (TH) mentioned above will be mistakenly recognized as Par 7 Olesien a. This causes a problem in that an incorrect perforation signal is output and the film is not transported accurately.

Fig. 13 shows a circuit in which the signal from the hole (TH) in Fig. @12 is invalidated and only the signal from the perforation (PH) is output, and Fig. @14 is a time chart of this circuit.

In FIG. 9, since the film is moved to the right, a pulse due to the hole (TH) is first output from the inverter (IN25), and 1.
It is output from the inverter (IN27) with a delay of 5 cycles.

The AND circuit (AN)3) connects the output of the inverter (IN2.) and the output of the inverter (IN25) to the inverter (lN2.).
Since the inverted signal is input at the hole (TH
) is output from the inverter (INzs), a signal that becomes "Low" in the middle while the inverter (IN2t) is "High" is output (
Fig. 14 FF33) - Similarly, AND circuit (AN3,)
From there, the pulse from the hole (TH) is sent to the inverter (lN2
7) When the output is “Low” in the middle while the inverter (IN2S) is “Higl+”
A signal is output (AN1. in FIG. 14). And the 7 lip prop (FF3?> is an AND circuit (AN)
It is set at the rising edge of FF33) and reset at the rising edge of the AND circuit (AN3S) via the OR circuit (OR39) (FF3 in FIG. 14).

Therefore, the output of 7 lip/70 tube (FF3.) is hole (
It becomes a signal of a par 7 Olesien that is not affected by TH).

FIG. 15 is a perspective view of another embodiment of the par 7 olecitane detection device, and FIG. 15 is a sectional view of this device when it is attached to a camera. In Figure 15, (63), (6
7) are light emitting diodes (LE, ) and (LE3), respectively.
It is a 7-oto coupler with built-in 7-oto diodes (PD, ), (PD3), and these are par 7 Oresian (a).
It is shifted by 1i2 period with respect to the − period of PH),
The photodetector (PD, ) detects the hole (TH) earlier by 1i2 periods.
) is arranged to detect. (55), (69
) is a mask for increasing perforation (PH) detection accuracy, and its function will be described later based on FIGS. 21 to 26.

In FIG. 16, (47) is a crimping temporary presser spring, (49)
) is the crimp plate, (83) is the inner cover, and 7 Oto coupler (
63), the light emitting diode (LE,) in (67), (
To prevent the light from LE3) passing through the perforation (PH) from being reflected by the film-side surface of the inner cover and entering the photodiodes (PD, ) and (PD2), the part (87) is a diffused reflection part. It has become. (85
) is the back cover, (81) is a guide roller, and (57) is a spool with a built-in winding motor (Ml). (7
1) is the camera body, (73) is the shutter unit), (75) is the front frame, (77) is the lens mount,
(79) is a mirror box.

In this case, the Par 7 Olesian (PH) is detected by the 7 Oto coupler, and the film is wound by the spool, so a sprocket is necessary to detect the amount of film feed and to feed the film. Since there is no sprocket, there is no sprocket. Therefore, a mechanism related to the sprocket is omitted, making it possible to reduce the weight and size.

Figure 17 shows the configuration of Figure 12 using the configurations of Figures 15 and 16.
Par 7 not affected by the film hole (TH) in the figure
This is a circuit that outputs an oscillation signal, and FIG. 18 is a time chart of the output of this circuit. The light emitting diodes (LE, ), (LE3) are constant current sources (CII), (C
1,), so it emits light with a constant intensity.

Then, there is a photometric circuit composed of a photodetector (PD,), a feedback resistor (R,), and an operational amplifier (OAl);
) The outputs of the photometric circuit configured as (OA, ) and (0A3) in FIG. 18 are respectively shown. This output is
When there is par 7 olethicine (PH), there is almost no light reflected by the film, which gradually decreases and then increases as the film moves. In addition, when there is a hole (TH), this hole (TH) is smaller than the par 7 orifice (PH), so even if the hole (TH) is located at a position where the output of the photometric circuit is minimum, the hole (TH) There is considerable light reflected by the film surface around the par 7 oleasisin (PH).
This value is considerably larger than the output due to I.

(AC,) is an analog converter, which compares the outputs of the two photometric circuits. Therefore, when the output of the operational amplifier (OA, ) decreases due to perforation (PH), even if the hole (TH) comes to the detection position of the photocoupler (67) and the output of the operational amplifier (OA, ) decreases, it will still decrease. Since the value is smaller than when the par 7 oleax (PH) is increased, OA,<OA, and the output of the comparator (AC,) becomes "Low". Similarly, 7
i) While the coupler (67) is detecting the perforation (PH), the 7 oto coupler (63) is detecting the hole (TH).
) is detected, the output of the operational amplifier (OA, ), (OA, ) becomes OA,>OA:+, and the comparator (Act)
The output of is "Higb", so a perforation signal not affected by the hole (TH) is obtained.

The Pt519 diagram is another example of a circuit for outputting a perforation signal that is not affected by holes (TH). Comparators (AC3) and (AC5) are constant current (C
) and resistor (R3) and operational amplifier (OA
, ), (0A3) are compared, and the outputs from each comparator (AC3) and (AC2) are OR5, AC
The waveform shown in 5 is output.

These two outputs are input to the OR circuit (OR,,), and while the signal from the comparator (AC,) + the perforation is "Higb", the comparator ('AC3) is set to "Higb" by the hole (TH). Even if the OR circuit (OR41) outputs the signal due to the par 7 orethane a from the hum comparator (AC3), similarly, when the signal due to the par 7 orex tan from the comparator (ACs) is output, the comparator ( AC3
) Even if a pulse is output from the hole (TH), the OR circuit (OR, , ) outputs the signal from the par 7 orex a from the humperator (Act) as it is (the second
Therefore, the OR circuit (OR4+) outputs the bar7 orex signal at a period that is 1/2 of the period of the par7 orex1.

The output of this OR circuit (OR,,) is T-7 rip 70
It is input to the T terminal of the tube (TF, ), and a signal whose frequency is divided into 1/2 is output from the Q output (Fig. 20 OR,).
, if this signal is used as a perforation signal, we get
Not affected by signal holes.

Next, the functions of the masks (65) and (69) shown in FIG. 15 will be explained based on fjIJ21 to FIG. 26. First, functions related to specular reflection will be explained based on FIGS. 21 to 25. Figures 21, 22, and 23 are 7
Distance f between Otocobler (pc) and 7 Rector (RF)
When changing the ID, the luminous flux from the light emitting diode (LE) changes to 7 otodiodes (PD), IJ7 rector (
This figure shows how the light enters after being specularly reflected by RF.

In addition, when the distance d between the m25 beam 7 rector (RF) and the 7 autocoupler (PC) is changed, the photodetector (PD)
) is a characteristic curve showing the output of The horizontal axis is the distance d between the 7-oto coupler (PC) and the 7-rector (RF), and the vertical axis is the output of the 7-oto diode (PD) when a constant current (for example, 10 A) is passed through the light emitting diode (LE). It is a relative value.

First, the solid line in FIG. 25 will be explained. This solid line is
It shows the output characteristics of the photodiode (PD) when there is no mask (M). In this case, long distance (d=8
As the distance #Id becomes shorter from ml6), the angle at which each point on the seven photodiodes (PD) faces the light emitting diode (LE) increases, and the amount of light received increases. Then, the output reaches its peak at distance d, and as it approaches further, the angle between each point on the seven photodiodes (PD) is limited by the barrier (α), as shown in FIG. - Dot-dashed line and single-dot chain #X) 7 The output of the otodiode (PD) decreases rapidly.

Therefore, perforations (
PH), when there is a film, the distance d1
If there are perforations, the output when detecting perforations is approximately 62% of the output when there is a film. However, there is a problem that detection accuracy deteriorates.

The broken line in Figure 25 shows the output characteristics when a mask (M) is provided to increase the output difference of the 7 photodiodes (PD) when the distances are different, in order to solve the above problem. . In the case of the fpJ21 diagram, each point on the photodiode (PD) is not eclipsed by the mask (M> and barrier <a>), and is glaring at the entire light emitting diode (LE) (
The solid line and the dotted line, and the solid line and the chain chain M), the distance d1 is the maximum of this viewing angle, and the 7 otodiodes (P
D), the output is maximum. Also, Fig. 22 shows the case where the distance d2 is smaller than dl, and in this case, the mask (M)
Regardless of the presence or absence of the barrier (a), the angle at which the point on Moe's 7 photodiode (PD) faces the light emitting diode (LE) is reduced, resulting in the same characteristics as the solid line in FIG. 25.

Figure 23 shows the 7 automatic coupler (PC) and reflector (
RF) distance d is larger than d. In this case, the point on the 7 otogiode (PD) is l[
By increasing the separation distance, the angle at which the entire light emitting diode (LE) is viewed is reduced, and the light rays are eclipsed by the mask (M), so that the light emitting diode (LE) is The number of points that do not cover the whole of (LE) increases, and the fall becomes more rapid than in the case of a solid line (without mask (M)). Therefore photocoupler (pc)
If the distance between the film and the reflection surface of the ray passing through the perforation is d3, then the 7 otodiode (PD) when the par 7 olefin is detected.
The output is approximately 46% of the output when the film is detected, and the detection ability is increased compared to the case without the mask (M).

The dotted line a in FIG. 25 is a characteristic curve when the optical system shown in FIG. 24 is used. In this Figure 24, there are 7 otodiodes (
The end face (M) of the mask (M) is lower than the point (PDa) on the
b) is located closer to the barrier <a>, and the end face (Ma) of the mask (M) is located closer to the barrier (a) than the point (LEa) on the light emitting diode (LE). With this configuration, the amount of light rays excluded is greater than that of the mask (M) shown in Fig. m23, and the characteristic curve falls more steeply.
The output ratio of D) is 100:34. Further, as shown by the broken line in FIG. 24, when the distance to the reflecting surface (RF') becomes d or more, the reflected light from the light emitting diode (LE) no longer enters the 7 photodiode (PD). Therefore,
If the reflective surface of the light that has passed through the Par 7 olethesian is separated by a distance d, the output of the photodiode (PD) will be 0 when detecting the Par 7 olethesian, so that the detection ability will be further improved.

Although specular reflection has been explained in FIGS. 21 to 25, there is usually a considerable amount of light reflected by diffuse reflection on a reflecting surface. Therefore, in FIG. 26, the effect of the mask (M) on this diffuse reflection will be explained. Figure 26 is a diagram when the perforation (PH) of the film (F) is at the detection position. Most of the light emitted from the light emitting diode (LE) and passing through the perforation (PH) is from the inner hole. (83
) by the diffuse reflection surface (87) of 7 otodiodes (PD
), and furthermore, specularly reflected light rays almost never enter the photodiode (PD) as described above. On the other hand, among the light beams emitted from the light emitting diode (LE) N0 point (LE6) and incident on the film surface (Fa), the specular reflection component shown by the solid line is definitely reflected by the 7 otodiodes (
PD), but there is a considerable amount of diffuse reflection components shown by broken lines.

As is clear from the figure, most of these components are cut off by the mask (M). Therefore, the mask (M
) not only improves the signal-to-noise ratio of reflected light due to specular reflection, but also has the function of cutting off excess diffusely reflected light, so it is highly effective in improving the detection ability of par-7 olecitane (PH).

FIG. 27 shows a specific example of the data imprinting circuit (21), clock circuit (23), and expiration warning circuit (25) shown in FIG. (91) is a crystal resonator, (93) is an oscillator, (
95) is a frequency divider, 2048Hz, 128Hz, 32H
It outputs 207 pulses of 12Hz and IHz. (
97) is a clock circuit that measures the year, month, day, hour, minute, and second based on the IHz clock pulse from the divider (95). In addition, in FIG. 3, various clock pulses from the frequency divider (95) are collectively represented by the symbol (TP), and the clock circuit (
The data for imprinting from 97) are collectively indicated by the symbol (TD).

Data (TD) from the clock circuit (97) and a 128 Hz clock pulse are input to a dynamic display circuit (99), and the data imprinted on the liquid crystal is dynamically displayed. Also switch (5W21) car! 1 and 7+ and the transistor (Br21) are repeatedly turned on and off based on a 2048 Hz clock pulse, and a high voltage clock pulse (2048 Hz) is applied to both terminal electrodes of the EL panel (EL,) by a transformer (TR,). ) is applied, the EL panel (EL, ) emits light and becomes a backlight light source for a dynamic liquid crystal display. In addition, since the light source is seven-dimensional, the EL panel lighting only needs to be placed over the liquid crystal display, eliminating the need for an optical system like lamp lighting, eliminating uneven lighting, and improving visual performance. It has the effect of being soft. Furthermore, for products such as cameras that are desirable to be small and lightweight, it is more effective than lighting with lamps.

(101) is a display circuit that statically displays data from the clock circuit (97) on a liquid crystal, and a transistor (B
When the switch (SWls) is closed in the data imprinting mode, r3°) is conductive while the “HigI+” signal is output from the imprinting time control circuit (103) surrounded by a broken line, and the lamp is turned on. (LA) constant current source (CI,
) to cause the lamp (LA) to emit light at a constant intensity.

Then, the display data of the static display circuit (101) is imprinted onto the film by the light emission of this lamp (LA). Note that an EL panel may be used as the light source for imprinting.

Next, the imprinting time control circuit (103) surrounded by a broken line
Explain the operation. An analog signal of the apex value of the film sensitivity from the DA converter (17) shown in FIG. 3 is inputted from the terminal (a). This circuit (103) is a switch (
When power supply starts by closing SW+s), the power-on reset circuit (PRt) operates and the OR circuit (O
The 7-lip/70-tub (FF, ) is reset via R42), and the transistor (B'r-+) becomes conductive.
Transistors (Br3.), (Br23), (BT
2S), (Br27), and (Br3.) are non-conductive.

When a pulse is input to the terminal (u) from the OR circuit (OR3,) in FIG.
) is set and the transistors (BT2゜), (BT
2. ) , (BT2S) , (BT2□) , (BT
2-) becomes conductive, the transistor (BTU, ) becomes non-conductive, data imprinting starts, and imprinting time counting also starts. The 7 pixel value Sv of the film sensitivity from the terminal (,) is input to the subtraction circuit (105) and the voltage is -8V.
voltage is output, and this voltage is applied to the transistors (BT2.
) is converted into a current of 2/2 (2), and this current is integrated by a capacitor (C0). When this integrated voltage output is lower than the output of the constant current source (CI,,) and the resistor (R,), the output of the humpator (Act) becomes "High".
”, and the 7-rip
The 70 knob (FF) 9) is reset and the imprinting operation stops. Therefore, the imprinting time is controlled to be inversely proportional to the film sensitivity.

Next, the film expiration warning circuit will be explained. Among the data (TD) from the clock circuit (97), the year and month data and the year and month data (FDD) read from the film output through the date circuit (GA) shown in FIG.
) is input to the magnitude comparison circuit (107), and the output of this magnitude comparison circuit (107) is "Higl+" if the data (TD) from the clock circuit (97) is greater than the film expiration date data (FDD). ′, and if it is small, “L
ow''.A specific example of this magnitude comparison circuit (107) will be described later based on FIGS. 29 and 30.

The reading of the signal hole (SH) is completed and the 7 lip and 70 knob (FF,) of the fJSS diagram are set and output (I))
When becomes High, the date of the AND circuit (AN, , ) is opened. Then, when the output of the magnitude comparison circuit (107) becomes "High", the output of the AND circuit (AN o) becomes "Higl+". At the rising edge of the output of the AND circuit (AN3s), the one-shot circuit (O83,) is trigged and a pulse of "I (igl-) is output, and at the falling edge of that pulse, 7 rip, 70 l (FF, l) is triggered. is set. This opens the date of the AND circuit (ANz7), and the frequency divider (9
A clock pulse of 2048 Hz is output from
) repeats conduction and non-conduction alternately. As a result, a warning sound is generated from the piezoelectric element (109) to warn the photographer that the expiration date of the film has expired.

When the 7 lip-flops (FF, , ) are set, the date of the AND circuit (AN, , ) is opened, and the divider (9
The 32Hz clock pulse from 5) is applied to the AND circuit (
AN41) is input to the counter (C09), m
The 1st clock pulse is output from the carry terminal and passes through the OR circuit (OR=s) to 7 rip and 70 rip (FF,
, ) is reset and the AND circuit < AN, , ) , (
AN, +) dates are closed, the generation of the warning sound is stopped, and the operation of the counters (COs) is also stopped.

Therefore, the warning sound is generated for a certain period of time after the reading of the film data is completed.

Figure PJ28 is a modification of Figure 27. Switch (SW
:++) is a switch that is closed in conjunction with the photometric switch (SW, ) shown in FIG. This switch (SW,
) is closed, the output of the inverter (IN, 6) becomes "
Higb''. This results in an AND circuit (AN, .

) is opened, and at this time, if the validity period has expired and the output of the AND circuit (AN3.) is "High", the output of the AND circuit (A, N, .) becomes "High+", 722 at the rise of the output of the AND circuit (AN, .)
The 171 circuit (O8, 2) is trigged and the OR circuit (O
7 rip and 70 rip (FF, , ) are set via R=o) and a warning sound is generated for a certain period of time. In the case of this embodiment and the modified example, a warning can be issued even if the photographer leaves the film attached to the camera for a long time and the expiration date of the film has expired. In addition, in this embodiment and the modified example, the output of the clock circuit and the read expiry date data are compared, but the imprinted data is of a type that is set manually, and the setting data and the read expiry date data are compared. You may also do so.

Next, based on Fig. 29 and Fig. 30, a size comparison circuit (
A specific example of 107) will be explained. Table 1 shows an example of food with expiry date data. To explain the code corresponding to the outputs of the terminals (b8) to (bus) of the shift register (SR,) in Fig. 10, when (b,) is 1, 1990
When (b8) is O, it is the 1980s, (b, ) ~
(bl2) is a binary code corresponding to years 0 to 9,
(bus) to (b6.) are binary food corresponding to January to December. In the case of the film shown in Figure 1, the terminals (b,) to (b,,) are ''00110100
1", and the expiration date is September 1986. Then, the data obtained by decoding the year and month data (TD) from the clock circuit (97) with the decoder (DE, ) is "
010000011'' and March 1988, that is, the expiration date has expired.

When the terminal (p) completes reading and rises to “HigI+”, the 772171 circuit (O333) outputs “Higl+”.
A pulse of 2048 is output from the frequency divider (95).
At the falling edge of the Hz clock pulse, the output of the one-shot circuit (OS33) becomes D-7 rip/70 rip (DF,
), and an AND signal of this output and a 2048 Hz clock pulse is output from an AND circuit (AN=3). At the rising edge of this pulse, the shift register (5R
3), (5Rs) contains year and month data (T,) to (To) and expiration date data (b8) from the decoder (DE,).
) to (bus) are taken in by terminals (1,) to (11), respectively.

Further, the counter (CO, , ) is reset via the OR circuit (OR4g). Furthermore, AND circuit (AN4.)
At the fall of the pulse from
3) is set, 7 linop/70 mph" (FF=s)
is reset via the OR circuit (OR3,). When the 7-rip, 70-tube (FF, 3) is set, the date of the AND circuit (AN4.) is opened and the 2048Hz clock pulse is sent to the shift register (5R3), (5R3).
s) and the counter (CO,,). Then, the shift registers (SR,) and (SRs) sequentially output the preset data in parallel to the SO in synchronization with the clock pulse.
Output from the terminal (Se-real 0output).

Exclusive OR circuit (EO,), AND circuit (
AN,? ), (AN,,), inverter (IN,,)
constitutes a circuit that determines the magnitude of 1-bit data output from the two SO terminals. Since the output of Tb4 is both 1, the output of (EO,) becomes "Low", and then when T1=1 and b+s=0, the date of the AND circuit (AN-t) is opened and a clock pulse is output. (Fig. 3008
3S), 7-rip, 70-tube (FF4S) is set to the 0th order, T, = 0, l), , = 1, a pulse is output from the AND circuit (AN,,), and 7-rip, 70
The knob (FF, 5) is reset.

T,=0,b,,=1,T6=0,bl. Even when = 1, a pulse is output from the AND circuit (AN4s), but 7
The lip 70 knob (FF, s) remains reset. Then, when T, = 1, l+, = 0, 7
Lip 70 tube (FF,,) is again AND circuit (AN
, , ).

Therefore, if the data (TD) is larger, 7 rip/7
07 block (FF45) is set, and if it is smaller, it is reset (FIG. m30 FF,,). And Kara 7
(COl,) outputs the 9th panel from the carry terminal and passes through the OR circuit (OR, ,) to 7 rip/70
Reset the knob (FF=3) and start the AND circuit (AN=
Close the date of s). In addition, the one-shot circuit (O33S) is triggered at the fall of the pulse from the carry terminal of the counter (CO, , ), and the third pulse is output.
0 figure 083S), 7 rip・7 at the falling edge of this pulse
The Q output of the 0 knob (FF1.) is taken into the D-7 lip/70 knob (DE3) and is connected to the AND circuit (AN 39).
(Fig. 27), a “Higb” signal is output (
fll's30 [2JDF,), and D-7 Lip.
The 70 knobs (DF”, ), (DE3), 7 lip 70 knobs (FF, 3) and the counter (COz) are OR circuits (O
Power-on reset circuit (PR, ) via R46)
(Fig. 27) or the OR cycle 'vI of Fig. 5
It is reset by the reset pulse (po2) output from (OR5). In the manner described above, signals corresponding to the magnitudes of the two data (TD) and (FDD) are output.

FIG. 31 is a specific circuit example of the film sensitivity display device (27) shown in FIG. PR3. (127) is a data circuit that outputs data corresponding to ASAloo, (129) is ASA
This is a data output circuit that outputs data corresponding to 400. Then, the data (FSD) read from the data selector (15) in FIG. 3 or the data set by the setting device (13) and the data output circuit (127), (12
9) and the comparison circuit +(EO,) ~ (EOz
) and (oRsq) and (EO13) ~ (EO2,) and (
It is compared by OR6,)l and the data selector (15
), the output of the OR circuit (OR63) becomes "Higb" when the film sensitivity from ASAloo is not 400.

When the output of the OR circuit (OR, 3) is Higb''', the output of the NAND circuit (NAP) is the frequency divider (95
) A clock pulse of opposite phase to the 2Hz clock pulse from the 2Hz clock pulse is output. The output of this NAND circuit (NA3) is “
When the signal is “Highb”, the data from the data selector (15) is output from the data selector (133), and the data from the data selector (15) is output from the data selector (133).
w", blank data is output from the data output circuit (131) so that the display circuit (135) displays a blank display (nothing is displayed). Therefore, the data from the data selector (15) is , 400, the film sensitivity value is displayed blinking at a frequency of 2 Hz on the liquid crystal dynamic display circuit (135) to which a 128 Hz clock pulse is input.On the other hand, the output of the OR circuit (0R63) is Low. In other words, when the data from the data selector (15) is ASAloo or 400, the output of the NAND circuit (NA3) is always “
HiBh”, and the data selector (133) always outputs the data from the data selector (15).
The display circuit (135) constantly displays ASAloo or 400.

The switch (SW23) is a liquid crystal dynamic display circuit (
135) is a lighting switch for the display section. When the output of the NAND circuit (NA3) is High, that is, when the set or read film sensitivity is ASAloo or 400, the date of the AND circuit (AN55) is opened and a 2048Hz clock pulse is constantly output. The EL panel (EL3) lights up all the time to illuminate the display section.On the other hand, when a 2Hz clock pulse is output from the NAND circuit (NA3), the EL panel (EL3) lights up all the time to illuminate the display section.
3) blinks in the same phase as the blinking of the display section of the dynamic display circuit (135), and lights up to illuminate only when numbers are displayed.

As described above, in this display device, if the film speed is commonly used (ASAloo, 400), the number will be displayed as is, and if the film speed is not usually used, the film speed value will be displayed blinking as a number. Ru.

Therefore, in the case of a film sensitivity that is not often used, this will serve as a warning that photography will be performed at a special film sensitivity value.

Figure t532 is a specific example of the display section for the number of shots of film. (DEs) is a decoder that converts signals from terminals (bl) and (by) of the shift register (SRI) shown in FIG. 10 into a binary code corresponding to the number of shots of the film. Table 2 shows an example of the input/output relationship of the decoder (DES).

When the reading is completed and the terminal (p) becomes "High", the 6-bit data from the decoder (DE5) is preset in the down counter (Co, . . .) at the rising edge of this signal. Then, each time the film is advanced one frame, the terminal (PO
2), the down counter (CO
The contents of I:l) are subtracted by one. Therefore, the counter (
The contents of COI3) are data corresponding to the remaining number of shots. The decoder (DE,) is a counter (Cot:
The output of l) is "000101",~''' ooooooo
``H'', that is, when the remaining number of shots is between 5 and 0.
igl+" signal is output.

(143) is a data selector, which is a NAND circuit (NA
When the output of P) is "Higl+", the data (FCD) from the film counter (Co, ) shown in Figure 5 is output, and when the output of the NAND circuit (NAP) is "Low"', the data for blank display is output. A data output circuit (141
) outputs the data from. Therefore, the terminal (p) is “H”
When the number of remaining shots becomes 5 or less and the output of the AND circuit (ANs) becomes "Hi [It+"], a clock pulse with a frequency of 2 Hz is output from the NAND circuit (NAs) and displayed. On the device (D1.), the numerical value of the number of shots is displayed blinking.On the other hand, the AND circuit (ANS?)
When the output of the NAND circuit (NAP) remains “High”, the data selector (143
) is constantly outputting data (FCD) on the number of shots of the film, and the display device (D1.) displays the number of shots as is.

As described above, in this embodiment, when the number of remaining shots falls below a predetermined value, the numerical value of the number of shots will blink and display a warning that the number of remaining shots has become small. .

(A)i) , (CH) , (YH) shown in FIG.
It is conceivable to provide a signal hole indicating film type data in addition to the (MH) data. The type of film is A type (tungsten type, color temperature 340).
0K), B type (tungsten type, color temperature 32
00K), D type (daylight type, color temperature 550)
0K). Therefore, the A type is 10", and the B type is "
A case will be explained in which data of "01" and "00" is set for the D type.

Type A and type B are usually used indoors, but when indoors, it is possible to mistakenly take pictures using a strobe. By the way, S).

Since the color temperature of the flash light source is matched to that of D-type film, if you use flash photography with A-type or B-type film, the coloring of the film will be very unnatural. The circuit shown in FIG. 33 addresses this problem.

First, the signal hole increases by 2 bits, so the shift register in Figure 10 has two additional terminals, (bl?) and (bll), and from terminals (11,,), (b,,), the A type has a 10" , "01" for B type, "00" for D type
data is output. Therefore, the output of the exclusive OR circuit (EOU) is of the tungsten type (“
10", 01"), it becomes "High", and when it is a daylight type ("00"), it becomes "Low".

In Fig. 33, (137) is the power supply circuit of SuYrobo,
(Xe) is a xenon tube, (139) is a tri-circuit, (
CM) is the main capacitor. (Ne) is a neon tube,
When the charging voltage of the main capacitor (CM) reaches a predetermined value, a current flows and a charging completion signal is sent from the resistor (R3,) to the terminal (
It is input to the camera side via J)2) and (J3.). Note that the terminals (J2.) and (J2□) are the terminals that transmit the signal of the X contact (Sx) on the camera side to the strobe side, and the terminals (J2.
, , ) , (J, □) are terminals that share the ground on the camera side and the strobe side.

When the reading is completed, the terminal (1]) becomes "High", the tungsten type film is installed, and the output of the exclusive O7 circuit (EO,,) becomes "High".
, and a charging completion signal is input from the terminals (J), ), the output of the AND circuit (AND, ) becomes “High
+”, and the output of the inverter (IN3-) becomes “Low”.
When the switch (SW33), which opens and closes in the same phase in conjunction with the photometric switch (SW, ) shown in Figure 3, is closed, the output of the inverter (IN-1) becomes High, and the AND circuit The date of (AN6,) is opened and a 2Hz clock pulse is output from the AND circuit (ANss), which turns off the circuit (OR55), ) transistor (B”r45).
) will flash a light emitting diode (LE, ) to warn you that a tungsten type film is being loaded while flash photography is being performed. The transistor (BT4ff) is the transistor (BTl) in the PIS3 diagram.
Since conduction/non-conduction is controlled in the same phase as the inverter (IN,...) until the release starts and exposure control is completed
The output remains “HiFil+”.

When a D type film is installed, the output of the exclusive O7 circuit (EO, , ) becomes "Los" and the output of the inverter (IN31) becomes "High".
become. Therefore, when a "High" charging completion signal is input from the terminal (J3.), the output of the AND circuit (AN, . . . ) becomes "High". Then, switch (SW: +
When z) is closed, the output of the AND circuit (AN6.) becomes '
The light emitting diode (LE7) lights up via the off circuit (ORas) and the transistor (BT4s), indicating that charging is complete.

Therefore, in the embodiment of FIG. 33, the tungsten type (
When a charge completion signal is input from the strobe when a type A or B type film is loaded, the light emitting diode (LE?) flashes as a warning, and a daylight type (D type) film is loaded. When the charging completion signal is inputted, the light emitting diode (LE) lights up.

FIG. 34 is another embodiment of a film type warning.

When the reading is completed and the terminal (p) becomes 'High', the liquid crystal display section (143) displays the values A and B based on the film type data from the terminals (b, , ) and (b18).
One of the characters will be displayed.

Also, when using the tungsten type, the output of the exclusive O7 circuit (EO:11) becomes "Higb",
switch (SW2)) is closed and the inverter (IN4) is closed.
When the output of 1) becomes “High”, the AND circuit (ANa
The output of y) becomes "HiBl+". As a result, 2048H2 and 2Hz clock pulses are output from the AND circuit (ANas), and the inverter (IN,...)
, ) transistor (BT-7), (BTo) Zener diode (ZD, ), and a piezoelectric element (145) output a warning sound with a frequency of 2 Hz. Therefore, in this example, the type of film installed (A, B.

D) is displayed on the display device, and in the case of the tungsten type (A, B), a warning sound is generated in conjunction with the closing of the photometric switch. Note that the switch (SW3S) is a switch that is manually opened when the warning sound is not required.

As a modification of Figures 133 and 34, a light receiving element for measuring the color temperature of the light source may be provided to measure the color temperature, and a warning may be issued if the measured value and the read film type data do not match, or A compatible filter may be automatically inserted into the optical path system.

As shown in Figure 1, the film data is provided at the leading end of the film, and after reading this data, the part of the film where the signal hole indicating the data is provided is wound onto the spool. Therefore, it is necessary to store the read data.

Therefore, the data reading shift register (SR,) shown in FIG. 10 is always supplied with power from the power source battery (El), as shown in FIG. tI83. However, in this case, the battery (El) with the film attached
There is a problem that if the shift register (SR,) is replaced, the data stored in the shift register (SR, ) will be lost. FIG. 35 shows an embodiment that solves this problem.

In Figure 35, (9) is the block shown in Figure 13 (
9), and a shift register (SR, ) (FIG. 10) for reading and storing data is provided inside. (
151) is a block diagram showing circuits other than block (9) in FIG. When the power battery (E,) is installed, the switch (S,
W5%> is closed and the switch (SW37) is opened. Therefore, the block (151) is supplied with power via the switch (SW3), and the block (9) is supplied with power via the power source battery (El).
) is powered directly from the (CS) is a backup capacitor, which is connected to the battery (E) via a diode (C21).
It is charged from l). When the battery (El) is removed, the switch (SW31) is opened and the switch (SW31) is opened.
SW3t) is closed. This creates a block (9
) is supplied with power from a backup capacitor (C8) via a switch (SW, 7). On the other hand, block (1
51) has a diode (C23), so power is not supplied from the capacitor (C8), and excess current consumption can be prevented.

Therefore, after removing the battery, power is supplied to the block (9) by the capacitor (C8), so the data stored in the shift register (SR,) is transferred to the capacitor (C8).
If you replace the battery before the charge in C8) is consumed, it will never run out.

FIG. 36 shows a modification of the part related to film attachment shown in FIGS. 5 and 6. In the embodiment shown in FIGS. 5 and 6, winding is performed at low speed for a certain period of time, and when the camera back is closed during winding at low speed, winding at low speed is continued.
As soon as the low speed winding was finished, the high speed winding started. In this modification, a fixed amount of low-speed winding is performed, and as soon as the back cover is closed during low-speed winding, high-speed winding is started.

When the film is loaded, the output of the inverter (IN,) rises to "Higb" and a "High" pulse is output from the one-shot circuit (OSS). At the rise of this pulse, 7 rip props are set, and At the falling edge of this pulse, the one-shot circuit (O8+,) triggers
is output, and a “Highb” pulse is output. This pulse is output from the terminal (q) via the OR circuit (OR7),
Film winding starts, 7 rip, 7o7 rip (FF
,)Power.

is set, the transistor (BTls) conducts (
Power supply to the circuit 31) starts. At this time, the Q output of the 7-lip/70-tube (FF) is "Low", so the date of the AND circuit (ANs) is closed and the pulse output to terminal (q) is not output to terminal (1). First, since the scissor (SCR, ) shown in FIG. 3 is not conductive, winding is performed at a low speed. Then, as the film moves, the par 7 olecitane detection circuit (33) outputs the par 7
A pulse generated by the oscilloscope 5 is inputted to a counter (Co, ) via an AND circuit (AN, , ). - Counting the constant par 7 oresian a, the counter (C
A “Highb” pulse is output from oo), and at this time, the back cover is activated and the output of the inverter (IN) becomes High.
If l+'', this pulse is output from the AND circuit (AN+i) to the terminal (LWE, ), and the winding operation is stopped.Furthermore, 7 lip/70 tube (FF, ) is set, and the AND circuit ( AN, , ) date is opened and the pulse from the perforation detection circuit (33) is the fifth
Each circuit in the figure (ANt), (Co, ), (ANs), (3
7). Furthermore, after the date of the AND circuit (AN12) is closed, the bar 7 or the 5 pin detection circuit (
33) is not input to the counter (COo).

When winding at low speed is completed and the photographer closes the camera back, the output of the inverter (IN,) rises to "High" and goes through the OR circuit (ORio) to 7 rip, 70 rip (FF).
3) is reset and the output of the AND circuit (AN, .) rises to “High”, causing the one-shot circuit (OS,
. ) outputs a pulse of ")ligl+" and outputs it to the terminal (q) via the off circuit (OR, ), and also resets the 7-lip and 70-tub (FF, ), so this pulse is It is also output from the terminal (1) via the AND circuit (ANa). Therefore, as described in FIG. 5 and the tISa diagram, the high-speed empty feeding until the morning meal is performed.

Additionally, if the back cover is closed during low-speed dry feeding (winding), the output of the inverter (INs) will be “H”.
By becoming igI+″l, as mentioned above, the pulse from the one-shot circuit (O81°) is transferred to the 7-nd circuit (AN, t
) is output to terminal (1) and immediately shifts from low speed to high speed dry feed (winding).

After a certain amount of film has been transferred, the counter (
When a "High" pulse is output from COO), 7 lip and 70 knob are set and the AND circuit (AN,,)
A date will be held. Also, from the counter (Co,) “
Even if a “High” pulse is output, the back cover is closed and the output of the inverter (INz) is “Low” and the terminal (LW
The "Higb" pulse is not output from E, ), and high-speed winding continues, and high-speed idle feeding is performed until morning cooking, and then idle feeding is stopped. In addition, 7-rip prop (F
FI. ) is set and before the blank feed stops, in the case of a film provided with a signal hole, reading is performed as described above. In addition, the Q output of 7 lip/70 tube (FF,) is displayed on the display section (DI?) in the tjS6 diagram.
It is sent to the NOR circuits (N03) and (N05).

Table 1 Brother 1! As explained above, the camera of the present invention outputs the first signal when it is not suitable for daylight photography, but rather flash photography. By using this (for example, by correcting color temperature using a filter when this signal is output), it becomes possible to prevent the color balance from being disturbed.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a film with film data set, Fig. 2 is an enlarged view of the signal hole portion of Fig. 1, and Fig. 3 shows the entire camera to which this invention is applied. Figure 4 is a circuit diagram of a specific example of the release circuit (5) in Figure 3; Figures 5 and 6 are circuit diagrams of a specific example of block (9) in Figure 3; Figure 7 is a perspective view showing the specific configuration of the Par 7 Olesi 1 detection unit and the signal hole detection unit, Figure 8 is a plan view of the detection unit in Figure 7 viewed from the camera back side, and Figure 9 is FIG. 8 is a cross-sectional view taken along the dashed line I-I, and FIG. 10 is the bar 7 olethane detection section (33) in FIG. 5.
, a circuit diagram of a specific example of the signal hole detection section (35) and the reading circuit (37), FIG. 11 is a time chart showing the waveforms of each part of the circuit in FIG. 10, and FIG. 13 is a circuit diagram of a circuit for detecting the par 7 register tan of the film shown in FIG. 12, and FIG. 14 is a diagram showing each part of the circuit in FIG. 15 is a perspective view showing the detection section of the film shown in FIG. 12, FIG. 16 is a sectional view of a camera to which the detection section shown in FIG. Figure 18 is a diagram showing the output waveforms of each part of the circuit in Figure 17. Figure 19 is a circuit diagram of the detection circuit connected to the detector in Figure 15. The circuit diagram, ttS20, is a diagram showing the waveforms of each part of the circuit in FIG. 25 is a graph for explaining the effect of the optical mask, FIG. 26 is a sectional view showing the specific configuration of the par 7 olefin detection section, and FIG. 27 is a data imprint of FIG. 3. FIG. 28 is a circuit diagram of a modification of the expiration warning circuit shown in FIG. 27; FIG. 29 is a circuit diagram of a modification of the expiration warning circuit shown in FIG. A circuit diagram of a specific example of a circuit that discriminates the magnitude of the two data shown in the figure. Figure 30 is a time chart showing the waveforms of each part in Figure 29. Figure 31 is a film sensitivity display section (27 ), Fig. 32 is a circuit diagram of a modified example of the film exposure number display section shown in Fig. 5, Fig. 33 is a circuit diagram of a film type warning circuit, and Fig. 34 is a circuit diagram of a modified example of the film exposure number display section shown in Fig. 5.
The figure is a circuit diagram of a modified example of the film type warning circuit, Figure 35 is a circuit diagram of a modified example of the power supply circuit in Figure 3, and Figure 36 is a circuit diagram of a modified example of the film type warning circuit shown in Figures 5 and 6. FIG. 4 is a circuit diagram of a modified example of a related part. 35.37. b,,,b,,,E O,,...
......First discrimination means J31...
・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・Second discrimination means AN,,
・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・Output means Applicant Minolta Camera Co., Ltd. Figure 1 J12 Figure 8 ÷υ 3B9 Figure 14 Figure 15 Figure 18 Figure 1N20 Figure FI Taste 921 Figure 22 Figure 23: d3 I -1 + 'lk 25 Figure distance Title d (mm) 4f? Figure 126 Figure 28 P Figure 1130 DF3 'C5 Procedure Amendment 1. Indication of the case ζ3-2i Relationship with the 72 case Applicant Address 2-30 Azuchi-cho, Higashi-ku, Osaka Osaka International Pill Usuhatatsu Amendment 5, Subject of amendment (1) Specification 6, Contents of amendment ( 1) The "Scope of Claims" in Book #I will be amended as shown in the attached sheet. (2) Page 4, lines 2 to 17 of the specification, [In daylight]
...is output. ] is corrected as follows. [a first output means for outputting a signal regarding the color temperature characteristic of the imaging means used; and a first output means for determining whether the color temperature characteristic of the imaging means is daylight type based on the signal. a determination means; a second determination means for determining whether or not flash photography is to be performed; and the first determination means determine that the color temperature characteristic of the imaging means to be used is not a daylight type; and second output means that outputs the first signal when the second determination means determines that flash photography is to be performed. In the camera of the present invention having the above-described configuration, it is determined whether the color temperature characteristic of the imaging means is daylight type, and it is also determined whether or not flash photography is to be performed. Then, when it is determined that the color temperature characteristic of the imaging means is not daylight type, and it is determined that flash photography is to be performed, the first signal is output. ] (3) Page 88 of the specification, lines 1 to 8, [brother] 1Ω
1 Vermilion: Possible. Correct J as follows. Record [again 1! As explained above, in the camera of the present invention, when the color temperature characteristic of the imaging means is not daylight type and when 7 lassie photography is performed, the first signal is output. By using a signal (for example, notifying the photographer that this signal has been output, and allowing the photographer to use a filter to correct color temperature), the color balance can be prevented from being disturbed. be able to. (4) Page vJ91, lines 15 to 17 of the specification, “3
5,37. ......Output method" is corrected as follows. Record [35, 37, b,,, bll...
・・・・・・・・・・・・・・・First output means EO,
，・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・First determination means Jul・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・・・・・・・
・Second determination means A N @ 1・・・・・・・・・・
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・・・・・・Output means J of tIS2 and above Applicant Minolta Camera Co., Ltd. Attachment Claims (1) A first output means that outputs a signal related to the color temperature characteristics of the imaging means used, and the signal a first determining means for determining whether the color temperature characteristic of the imaging means is daylight type; a second determining means for determining whether or not flash photography is performed; When the determining means determines that the color temperature characteristic of the imaging means used is not a daylight type, and the second determining means determines that flash photography is to be performed, a first signal is output. and a second output means. (2) The camera according to claim (1), wherein the imaging means is a photographic film. (3) The second determination means is based on a second signal indicating that the charging voltage of the main capacitor, which is the energy source for flash emission, is higher than a predetermined value.
The camera according to any one of claims (1) and (2), which determines whether or not to perform flash photography. (4) The method according to any one of claims (1) to (3), further comprising display means for displaying that proper flash photography cannot be performed based on the first signal. camera.

Claims (5)

[Claims] (1) A first determining means for determining whether photography suitable for daylight is to be performed; a second determining means for determining whether flash photography is to be performed; and the first determining means. an output means for outputting a first signal when it is determined that photography suitable for daylight is not performed and the second determination means determines that flash photography is performed; camera with. (2) The first determining means determines whether the color temperature characteristic of the imaging means to be used is daylight type, and when the color temperature characteristic of the imaging means to be used is daylight type, the first determination means determines whether or not the color temperature characteristic of the imaging means to be used is daylight type. The camera according to claim 1, wherein the camera determines that suitable shooting is performed for the lower part. (3) The camera according to claim (2), wherein the imaging means is a photographic film. (4) The second determining means is based on a second signal indicating that the charging voltage of the main capacitor, which is the energy source for flash light emission, is higher than a predetermined value.
The camera according to any one of claims (1) to (3), which determines whether or not to perform flash photography. (5) The method according to any one of claims (1) to (4), further comprising a display means for displaying that proper flash photography cannot be performed based on the first signal. camera.