JPS60254123A - data imprint device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Application of the Invention) The present invention relates to an improvement of a data imprinting device that imprints photographic data such as the date of photographing onto a film by optical means, and is particularly effective for cameras. be.

(Background of the Invention) Various data imprinting devices have been proposed that imprint data such as the shooting date or shooting location onto the film, but all of them imprint data such as numbers and characters while the film is stopped, that is, when the photo is taken. Since the data imprinting optical system is of a type that imprints images at the same time, the size of the data imprinting optical system increases depending on the number of digits of data, and when such a device is incorporated into a camera, the camera becomes larger and the design of other components becomes difficult. This had the disadvantage of limiting the degree of freedom above.

So, as a solution to these shortcomings.

Data such as the date of shooting is temporarily stored in the memory unit, and when the film is wound after shooting, it is serially recorded one digit at a time using a single display (
A method (each piece is imprinted using the same action) was proposed (
Special Publication No. 57-55131).

However, in this proposal, although the data imprinting optical system can be made smaller, the last frame of the film (the 12th frame in the case of a 12-frame film) is not completely wound up by one frame and stops midway. Therefore, data could not be imprinted on the last piece.

(Purpose of the invention) The object of the present invention is to solve the above-mentioned problems.

The data imprinting optical system can be made smaller.

Another object of the present invention is to provide a data imprinting device that can reliably imprint data over all frames.

(Features of the Invention) In order to achieve the above object, the present invention provides a storage means for storing data corresponding to each frame of the film until the film is rewound, and a frame for detecting the position of each frame of the film when the film is rewound. a position detecting means; and a light emitting device that emits light so as to read data corresponding to each frame from the storage means based on the frame position information from the frame position detecting means and to imprint the data on each frame of the film being rewound. The present invention is characterized in that it is provided with a control means for controlling the means, so that the data of all frames of the film are imprinted at once during rewinding.

(Embodiments of the Invention) The present invention will be described below in detail based on illustrated embodiments.

1 to 9 show an embodiment of the present invention when incorporated into a camera. First, the mechanical structure of the embodiment of the present invention will be described using FIGS. 5 to 9. 1 is a film, 2 is a film cartridge, and 3 is a film winding spool. Reference numeral 4 denotes a sprocket that meshes with the part olefin of the film 1, and feeds one frame of the film 1 each time it rotates once. 5 is a tin rocket shaft gear that rotates together with sprocket 4.

A synchronous gear 6 meshes with the tin rocket shaft gear 5 at the same speed ratio, and is fixed to the shaft 7 having a projection 7a. Reference numeral 8 denotes a frame synchronization switch that is turned on each time one frame of film 1 is fed (by depression of the protrusion 7a) and generates a frame synchronization pulse, and reference numeral 9 denotes a transmission gear consisting of a small gear 9a and a large gear 9b. The small gear 9a is a synchronous gear 6, and the large gear 9b is a gear (not shown) fixed to the lower part of a disc-shaped electrode, which will be described later.
And they fit together. 10 rotates as the rotation of the sprocket 4 is transmitted at an increased speed. A large number of electrodes 10a (only eight electrodes are shown in FIG. 5 for drawing purposes)
As the disc-shaped electrode 10 rotates, a brush 11 slides on each electrode 10a (the brush 11 is fixed to the main body side) and generates one row of pulses. In other words, one disc-shaped electrode 10 and the brush 11 constitute a train pulse generator, which generates a large number of train pulses (288 pulses in this embodiment) while one frame of film 1 is fed. .

12 is a light emitting diode used as a light emitting element for imprinting data (see FIG. 6).

A holding plate 13 holds seven light emitting diodes 12 in a row, and a gear 14 rotatably supported by the main body is fixed to one end of the holding plate. 15 is a condenser lens (see FIG. 7) that focuses the light from the light emitting diodes 12 arranged in a row on the upper end side of the film 1, and 16 is a long hole 1 in which the protrusion 17 engages.
6a, a rewind lever having a claw portion 16b and a rack portion 16C that meshes with the aforementioned gear 14, and a rewind slide button 18 and a rewind contact piece 19 are fixed to the rewind/<-16. This rewinding lever 16 slides to the right according to the biasing force of the spring 20 except when rewinding the film (elongated 16a
(Fig. 8k).
(see L)), in this state, the gear 14 is in the rack part 16C.
Because it is rotated clockwise by.

As shown in FIG. 8(b), the light emitting diodes 12 held by the holding plate 13 are positioned in a horizontal row (horizontal position), that is, outside the photographing optical path. Also, 1 rewind slide button 18
By sliding the to the left, the pawl 16b engages with the pawl of a locking lever, which will be described later, and the film is set to the rewind state (at this time, the 1st rewind contact piece 19 engages with the pawl of a locking lever (not shown) on the main body side. ), and a rewinding signal is output to the clear signal generation circuit to be described later. The light emitting diodes 12 are arranged in a vertical line (
vertical position), i.e. in the photographing optical path.
Located at the side edge.

Reference numeral 21 denotes a locking lever that is rotatably attached to the shaft 22, and has a claw portion 21a that engages with the claw portion 16b of the rewind lever 16, and a protrusion portion 21b that comes into contact with the rising portion of the back cover signal lever, which will be described later. and is always biased clockwise by the coil spring 23. Reference numeral 24 denotes a back cover signal lever rotatably attached to the shaft 22, which is always biased counterclockwise by a spring 25, and its rising portion 24a can come into contact with the protruding portion 21b of the locking lever 21. The descending portion 24b can come into contact with the protruding portion 26a of the back cover 26. 27 is a back cover contact piece fixed to the rising portion 24a side of the back cover signal lever 24, and as shown in FIG.
When the back cover contact piece 27 is closed, the contact piece (
(not shown), but does not contact when the back cover 26 is open as shown in FIG. 9, and outputs each state (back cover open/close state signal) to an address counter to be described later. 28
is a stopper. In FIGS. 6 to 9, some of the internal mechanisms are shown in cross-section or omitted to make it easier to understand.

Next, a block diagram of the data imprinting device shown in FIG. 1 will be explained. 29 is a timekeeping circuit often used in digital watches that divides the original waveform of a crystal oscillator to count hours, minutes, and seconds, and also has a counter that advances the day, month, and year according to the calendar month. The count contents of the clock circuit 29 are displayed on a display 30 in a time-division manner. 31 is.

By the data mode selection switch (not shown), the clock circuit 2
Of the 90 count contents (displayed on display 30), select either the 8 digits (2 digits each) for the year, month, day, and hour, or the 8 digits (2 digits each) for the day, hour, minute, and second. A data mode selection circuit 32 determines whether the data is set to be imprinted as data. A timing detection circuit 33 detects only the pulse corresponding to the mode selected by the mode selection circuit 31 as a timing pulse signal, and 33 is an address counter and a timing pulse signal, which will be described later, which detects the timing pulse signal from the timing detection circuit 32 at the time when the release signal is input. The memory timing control circuit 34 that outputs to the memory circuit is reset to address 0 when the back cover open/close state signal indicating that the back cover 26 is open is input, and the memory timing control circuit 34 receives the timing for one frame from the memory timing control circuit 33. Each time a pulse signal is input, the count increases by 8 addresses (one count increases per digit) (numbers 0 to 7 for the - frame, 8 for the second frame).
35 is a storage circuit, and in synchronization with the timing pulse signal input from the storage timing control circuit 33, the data write selection circuit (described later) is sent from the clock circuit 29. The data signal input via the address counter 34 is stored at the address indicated by the address signal from the address counter 34. That is, if the address signal from the address counter 34 is O, the tens digit of the year (or the tens digit of the day) is stored in the memory circuit 3500 address.
If the address signal is 1, the - digit of the year (or - digit of the day) is placed at address 1, and if the address signal is 2, the - digit of the year (or - digit of the day) is placed at address 1.

Put the tens digit of the month (or the tens digit of the hour) at address 2, and if the address signal is 7, put the - digit of the hour (or - digit of the second) at address 7, and so on. I will remember it. Reference numeral 36 is a write-protection setting circuit, and if a write-protection switch (not shown) is pressed because data is not desired to be copied to a certain frame, data is written to a data write selection circuit (described later) in conjunction with this. Outputs a prohibition signal. 37 is a data write selection circuit that stops outputting a data signal to the storage circuit 35 when a write inhibit signal is input; 38 is a data write selection circuit that turns on the above-mentioned frame synchronization switch 8 when a rewind signal is input. A clear signal generation circuit that outputs a clear signal only when a frame synchronization pulse is input, which is generated by the process, and continuously outputs a clear signal when no rewind signal is input, regardless of whether or not a frame synchronization pulse is input. , 39 are counters (details will be described later) for counting the pulses generated by the disk-shaped electrode 10 and the brush 11 during film rewinding, including a 1-column counter 39a, a 1-digit counter 39b, a block counter 39c, and a 1-digit counter 39b. Consisting of a field counter 39d. 40 subtracts the count number of the address counter 340 based on each signal from the counter 39, and sends data corresponding to the count contents of the address counter 34 at that time to a code conversion circuit to be described later. output (from the memory circuit 35), and the counter 3
The drive circuit 41 is driven based on a signal (described later) from the field counter 39d of No.9. 42 is a code conversion circuit (details will be described later).

Next, the operation will be explained. When loading and unloading the film 1, it is done with the back cover 26 open as shown in FIG. At this time, the back cover signal lever 24 is biased counterclockwise by the spring 25, comes into contact with the stopper 28, and is stopped.

Therefore, the back cover contact piece 27 is a contactor (not shown) on the main body side.
The back cover 2 is not in contact with the address counter 34.
The back cover opening/closing state signal 6 indicates the open state is input, the address counter 34 is cleared, and the count becomes address 0. Since the locking lever 21 is pushed by the rising portion 24a of the back cover signal lever 24 and rotates in one counterclockwise direction, the claw portion 21a of the locking lever 21 and the claw portion 16 of the rewinding lever 16
b is disengaged, and the first rewinding lever 16 moves to the right according to the biasing force of the spring 20 (state in FIG. 9). In this state, the rewinding contact piece 19 does not come into contact with a contactor (not shown) on the main body side, and no rewinding signal is input to the clear signal generation circuit 38. Further, when the rewinding lever 16 is positioned to the right in this way, the holding plate 13 is rotated clockwise (via the gear 14) by the rack portion 16c, and the holding plate 13 is placed in a horizontal position. held light emitting diode 1
2 is located outside the photographing optical path (see FIG. 6). When the back cover 26 is closed, the back cover signal lever 24 engages the protrusion 26 of the back cover 26.
a, rotates clockwise around the shaft 22 (see FIG. 5), and the back cover contact piece 27 attached to the rising portion 24a comes into contact with a contact (not shown), and the back cover 26 A back cover open/close state signal indicating that the back cover is closed is generated and input to the address counter 34. This makes the address counter 34 ready for operation. The locking lever 21 follows the back cover signal lever 24 and rotates clockwise (via the coil spring 23).

The claw portion 21a is in a position where it can engage with the claw portion 16b of the rewind lever 16.

Next, we will discuss the time of shooting. 'First, a data mode selection switch (not shown) is used to select whether to imprint the year, month, date, and time as data, or whether to imprint the day, hour, minute, and second as data. Here, the explanation will proceed assuming that the year/month/date/time mode has been selected.

When the release signal is input to the storage timing control circuit 33, the storage timing control circuit 33 outputs the timing pulse signal detected by the timing detection circuit 32 to the address counter 34 and the storage circuit 35. By inputting the timing pulse signal, the address counter 34 sequentially counts up from address 0 to address 7 (counts up one address per digit). The memory circuit 35 is connected to the clock circuit 29 via the data write selection circuit 37.
A data signal sent from (for example, June 30, 1983)
The data signal representing 09:00 on the day is placed at the address specified by the address signal (address information) inputted from the address counter 34, that is, the tens digit 8 of the year is placed at address 0.

The 0 of the tens digit of the month is set to 3, and the 9 of the minus digit of the hour is set to 7.
Each address is memorized (in synchronization with the timing pulse signal). When the photographing of the first frame is completed, the tin rocket 4 rotates once by a film winding motor (not shown), and the film 1 is wound up by one frame. In addition, when the sprocket 4 rotates once, the synchronization gear 6 (via the tin rocket shaft gear 5) also rotates once, and the frame synchronization switch 8 is turned on at the position corresponding to the completion of hoisting (by the suppression of the protrusion 7a). do. When the frame synchronization switch 8 is turned on, a frame synchronization pulse is input to the clear signal generation circuit 38, but since no rewind signal is input to the clear signal generation circuit 38 at this time, the clear signal generation circuit 38 Regardless of the input of the frame synchronization pulse, a clear signal is always output to the counter 39 and the read/print timing control circuit 40. Thereafter, similarly, the count value of the address counter 340 increases by +8 every time the image is taken - times.

The data signals at that time are sequentially stored in the storage circuit 35.

In addition, if you do not want to copy data to any frame 1, for example, frame 2, by pressing a write-protection switch (not shown), a write-protection signal is sent from the write-protection setting circuit 36 to the data write selection circuit 37. As a result, the data write selection circuit 37 stops outputting the data signal from the clock circuit 29 (to the storage circuit 35). Therefore, at this time, a code signal instructing to prohibit imprinting is stored in addresses 8 to 15 of the memory circuit 35.

Next, the time of film rewinding will be described, but before that, the data imprinting format in this embodiment will be explained using FIGS. 2 and 3. Divide one frame into 3 fields,
The year, month, date, and time data shall be imprinted in the center field (see Figure 2). Then, the center field is divided into four blocks (year, month, date, and hour each with two digit numbers imprinted in one block), and one
The block is divided into three areas (one digit number is imprinted in one area, and if two digit characters continue, one digit (one area) is left blank). Further, as can be seen from FIG. 3, one area consists of 8 columns and 7 rows, in which the film 1 advances 8 columns in the direction of the arrow with respect to 7 light emitting diodes 12 vertically lined up in a row. One character is formed by 7 rows of columns, but in reality it becomes difficult to see if the numbers in the tens digit and - digit are printed consecutively, so out of 8 columns, 5 columns (7 rows) tt1 character The letters are aligned on the sides. In other words, the data will be imprinted with the following spacing.

1 area (1 character) → 8 columns, 7 rows (actual 1 character is 5 columns, 7 rows) l block → 3 areas (actually, characters are imprinted in only 2 areas) 1 field → 4 blocks 1 frame → 3 fields (center) (The field is the data imprint area) What is the timing for imprinting data like this?

When rewinding the film, for example, 28
8 pulses (8 columns x 3 areas x 4 blocks x 3 fields)
This is done based on the generated train pulses.

To rewind the film, press the 1 rewind slide button 18
slide to the left. When the rewind slide button 18 is slid to the left.

The inclined surface of the claw portion 16b of the rewinding lever 16 is the locking lever 21.
The rewinding lever 16 begins to move to the left while pushing up the inclined surface of the locking lever 21, that is, rotating the locking lever 21 counterclockwise against the biasing force of the coil spring 23, and the rear claw portion 16b
and the claw portion 21a of the locking lever 21 engage with each other, resulting in a state as shown in FIG. In this state, 1 rewind liquid piece 1
9 comes into contact with a contact (not shown), a 1-rewind signal is generated, and the holding plate 13 is rotated counterclockwise (via the gear 14) by the rack portion 16c, so that the holding plate 13 is held. As shown in FIG. 6, the light emitting diodes 12 are positioned at the end of the film cartridge 2 (111) in the photographing optical path in a line perpendicular to the running direction of the film 10.

The rewind signal is output to the clear signal generation circuit 38.

As a result, the clear signal generation circuit 38 releases the clear state of the counter 39 and the read/print timing control circuit 40. Therefore, the counter 39 and the read/print timing control circuit 40 become operable. Further, the first rewind signal is sent to a film rewind motor (not shown), and the film rewind starts, that is, the sprocket 4 starts rotating.

When the sprocket 4 begins to rotate, the disc-shaped electrode 10 begins to rotate in conjunction with it, and as a result, each electrode 10a and the brush 11 come into contact to generate one row of pulses, and this row of pulses is sequentially sent to the counter 39. Output.

Here, the operation of the counter 39 will be briefly explained. The column counter 39a counts the number of columns in one area (see FIG. 2), and counts up sequentially from "O" each time one pulse is input.

After counting up to 7'' (8 counts), counting starts again from 0, and the same operation is repeated thereafter.

The digit counter 39b counts the number of areas in one block, and every time the 1st column counter 39a counts up to '7', it counts '0'.
Count up sequentially from ``, and count up to 2'' (3
The block counter 39C counts the number of blocks in one field, and each time the one-digit counter 39b counts up to 2, it starts counting up from 0 sequentially. After counting up to "3" (4 counts), start counting again from "0". The field counter 39d counts the number of fields in one frame.

'0 every time the block counter 39c counts up to 13"
”, count up sequentially until ’2” (
3 counts), the rewinding of one frame is completed. At this time, the frame synchronization pulse is input to the clear signal generation circuit 38, and the counter 39 and the read/print timing control circuit 4
0 is cleared.

Each time a column pulse is input, the count contents of the counter 39 change, and at the same time as the count value of the field counter 39d reaches 'O'.

A data imprint start signal is output to the read/print timing control circuit 40. Read/print timing control circuit 40
outputs a timing control signal to the drive circuit 41 upon input of this signal.

The drive circuit 41 is enabled to operate, and the data stored in the storage circuit 35 (data corresponding to the count contents of the address counter 340 at that time) is outputted to the code conversion circuit 42 via the address counter 34. Let's assume that film 1 is shot in 12 frames, and the data for the first frame is 09:00 on June 30, 1983.
If you photographed each frame, the data for the 12th frame is June 1983.
It is 20:00 on the 30th of the month, and the memory circuit 35 stores 0, the minus digit of the hour, at address 95 (12 frames x 8 addresses) as the data for the 12th frame.

The tens digit of the hour, 2, is stored at address 94, 8, the tens digit of the year, and so on, at address 88. Therefore, the count content of the address counter 34 at this time is address 95.

O, which is the minus digit of the hour, is output to the code conversion circuit 42. Based on the column signal from the column counter 39a, the code conversion circuit 42 converts the column counter 3 as indicated by diagonal lines in FIG.
When 9a counts "0", the light emitting diodes 12 in rows 2 to 6 are counted from gin.While counting #3", the light emitting diodes 12 in rows 1 and 7 are counted. When counting 4", the light emitting diodes 12 in rows 1 and 7 are counted.
~6 rows of light emitting diodes 12 are each driven by a drive circuit 41.
The code is changed so that none of the light emitting diodes 12 emit light while counting from 5" to "7". When the column counter 39a returns to "0', the one-digit counter 39b reads "1" and at the same time outputs a digit signal to the read/print timing control circuit 40. Upon receiving this, the read/print timing circuit 40 subtracts address 1 from the count contents of the address counter 340.

The data stored in the storage circuit address 35094, that is, 2, which is the tens digit of the hour, is output to the code conversion circuit 42. Then, the code conversion circuit 42 performs code conversion based on the column signal from the column counter 39a as described above, and the light emitting diode 12 is turned on or off by this code conversion signal. Note that while the one-digit counter 39b is counting 12'', the read/print timing control signal 40 does not output a signal, so the count content of the address counter 34 does not change (subtract). From now on.

In this manner, day, month, and year data are sequentially imprinted by the light emitting diode 12 in conjunction with the rewinding of the film 10. The field counter 39d stops outputting the data imprinting start signal to the read/print timing control circuit 40 at the same time as it counts '2', that is, outputs the data imprinting start signal only while counting '1'. The read/print timing control circuit 40 outputs a timing control signal to operate the drive circuit 41 while the signal is being input. As a result, the data of the 12th frame stored in the memory circuit 35 is imprinted on the center field of one frame (see FIG. 4). In this manner, frames are continuously imprinted from the 12th frame up to the 1st frame in synchronization with the train pulse during film rewinding.

According to this embodiment, the data of each frame at the time of photographing is temporarily stored in the memory circuit 35, and when the film is rewound, the position of each frame is detected and the light emitting means located in the photographing optical path is used to sequentially display the corresponding frames. Since the data is imprinted on the frame, the data can be reliably imprinted on all the frames.

Furthermore, since data is imprinted while the film is being moved by rewinding, multi-digit data can be imprinted using only seven light emitting diodes 12. therefore,
The light emitting means for data imprinting can be downsized,
The camera can be made compact.

(Correspondence between the invention and the embodiment) In this embodiment, the memory circuit 35 serves as the memory means of the present invention, the counter 39 serves as the piece position detection means, and the light emitting diode 1
2. The drive circuit 41 serves as a light emitting means, and the read/print timing control circuit 40. The code conversion circuit 42 corresponds to control means.

(Modification) In this embodiment, the light emitting diode 12 is
The camera was positioned in the photographic optical path and retreated out of the photographic optical path except when rewinding the film.
If the light emitting diode 12 is positioned between the light emitting diode 6 and the light emitting diode 6, it is necessary to retreat the light emitting diode 12 out of the photographing optical path only when the back cover 26 is opened. It is also possible to arrange one light emitting diode 12 on the film cartridge 2 side.

A row of light emitting diodes 12 as a light source for data imprinting
However, instead of this, an optical fiber connected to a common light source via an optical switch may be used, or a seven-segment liquid crystal display or a light emitting diode display may be used. Further, although the train pulses are obtained by the disc-shaped electrode 1o and the brush 11, the present invention is not limited to this, and may be obtained from the shaft of the sprocket shaft gear 5, etc.

Further, in this embodiment, only the case of imprinting numbers such as year, month, day, etc. has been described, but it is also easy to imprint five characters, etc.

(Effects of the Invention) As described above, according to the present invention, there is provided a storage means for storing data corresponding to each frame of the film until the film is rewound, and a frame for detecting the position of each frame of the film when the film is rewound. a position detecting means; and a light emitting device that reads out data corresponding to each frame from the storage means based on the frame position information from the frame position detecting means and emits light so as to imprint the data on each frame of the film being rewound. Since the data for all frames of the film are imprinted at once during rewinding, the data imprinting optical system can be downsized, and the data for all frames can be imprinted at once. Data can be reliably imprinted over the entire area.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. Figure 2 is also a diagram showing the data imprinting format.
Figure 3 is also a diagram explaining how to imprint data, Figure 4
The figure is a diagram clearly showing how it is imprinted on a photograph according to an embodiment of the present invention, FIG. same(
7 is a side sectional view of the film in the rewound state, FIG.
The figure is a plan view showing the positional relationship of each member with the back cover open. 1...Film, 2...Film patrone, 3.
...Film winding spool, 4...Sprocket,
8...Frame synchronization switch, 10--Disc-shaped electrode,
11... Brush, 12-... Light emitting diode, 16.
...Rewind lever, 18...Rewind slide button, 19
... Rewinding contact piece, 21... Locking lever, 24... Back cover signal lever, 26... Back cover, 27... Back cover contact piece,
29... Clock circuit, 34... Address counter, 3
5... Memory circuit, 39... Counter. 40...readout/print timing control circuit, 41...
Drive circuit %42...Code conversion circuit. Patent Applicant Canon Co., Ltd. Agent Minoru Nakamura N8 Figure IZ 1,1

Claims (1)

[Claims] 1. In a data imprinting device equipped with a light emitting means for imprinting data onto each frame of the film, there is a storage means for storing the data corresponding to each frame of the film until the film is rewound; A frame position detection means detects the position of a frame, and data corresponding to each frame is read from the storage means based on the frame position information from the frame position detection means, and the data is applied to each frame of the film being rewound. A data imprinting device comprising: a control means for controlling the light emitting means so as to imprint the data.