JPH0473932B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a camera multiple exposure number imprinting device for imprinting the number of multiple exposures on a film surface.

[Description of the Prior Art] In a camera equipped with a multiplex shooting function that can perform two or more exposures on the same image on the film, conventionally, the number of exposures on the same screen on the film is recorded during multiple shooting. There was no way to do that. Therefore, it is not easy to recognize the number of exposures by looking at the screen of the developed multiple exposure film, and the photographer has to rely on his/her memory, which may lead to a misunderstanding of the number of exposures. Ta. If the number of exposures can be imprinted on the surface of a film that has been subjected to multiple photography, recognition of the number of exposures can be prevented and it can be used as a reference for the next multiple photography, which is convenient for the user.

In addition, in cameras that have a data imprint function that imprints numbers and characters such as the date onto the film surface in addition to a multiple shooting function, the data imprint function is configured to operate in synchronization with the shutter release, for example. As a result, data is imprinted multiple times on the same side of the film during multiple shooting, and the sharpness of the imprinted data may be impaired, and depending on the number of times multiple shooting is performed, there is a risk that the data may become unreadable. .

[Object of the invention] The present invention has been made based on the above viewpoints, and
The object is to provide a multiple exposure number imprinting device that can imprint the number of exposures during multiple exposure onto the film surface.

Another object of the present invention is to provide a multiple photographing number imprinting device capable of imprinting the number of exposures during multiple photographing without impairing the clarity of imprinting numeric or character data such as a date.

[Means for Achieving the Object] The present invention provides a device provided in a camera having a multiplex shooting function, which is capable of imprinting a plurality of marks on the film surface, each representing one exposure. A mark imprinting means, a means for detecting the number of exposures until the film is wound, and a means for controlling the mark imprinting means so as to imprint a number of marks corresponding to the detected number of exposures. The above object is achieved by a camera multiple-photographing device.

It is also a device installed in a camera that has a multiple shooting function and a data imprint function for imprinting numbers or characters, and is capable of imprinting multiple marks on the film surface, each representing one exposure. a mark imprinting means provided separately from the data imprinting function; a means for detecting the number of exposures until the film is wound; and a mark imprinting means for imprinting a number of marks corresponding to the detected number of exposures. The above-mentioned object is achieved by a multiple-shot number imaging device for a camera, which has means for controlling an imaging means and means for activating the data imaging function only once during multiple shooting.

[Embodiment of the Invention] FIG. 1 is a configuration diagram showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a photographing signal input terminal, to which a photographing signal A is applied, for example, in synchronization with shutter release. The imaging signal input terminal 1 is introduced into a lighting control section 2 and an exposure number imaging section 3.

The lighting control section 2 has a function of controlling the lighting of a data imprinting light source 4 for imprinting numbers and characters such as the date onto the film surface, and has an OR circuit 5 at its input stage.
It is equipped with One input terminal of the OR circuit 5 is connected to the imaging signal input terminal 1. OR circuit 5
The other input terminal of is connected to its output terminal via a series connection of a diode 6 and a resistor 7, is grounded via a resistor 8, and is further connected to the collector of a transistor 9. The emitter of the transistor 9 is grounded, and its base is introduced into the film winding upper part 10.
Once the image signal A is applied while the transistor 9 is in the off state, the OR circuit 5 switches the diode 6
Since the output is fed back through the resistor 7, the output remains at a constant H level regardless of the presence or absence of the imprint signal A. The H level state of OR circuit 5 is reset to L level when transistor 9 is turned on. A timer circuit 12 is connected to the output side of such an OR circuit 5 via a differentiation circuit 11. The differentiating circuit 11 triggers the timer circuit 12 when the OR circuit 5 rises to the H level. The timer circuit 12 is triggered by the differentiating circuit 11 and provides an H level output for a timer time determined according to the film sensitivity. The output terminal of timer circuit 12 is connected to the base of transistor 13. The collector of the transistor 13 is connected to the power supply line via the light source 4 for data projection, and its emitter is grounded. The transistor 13 is in an on state while the output of the timer circuit 12 is at H level, so that the light source 4 is turned on.

The base of the transistor 9, which resets the OR circuit 5, is connected via a resistor 14 to one current-carrying end of the winding motor 15 of the film winding section 10. The other current-carrying end of the hoisting motor 15 is grounded. One current-carrying end of the hoisting motor 15 to which the base of the transistor 9 is connected is connected to a common a of a contact 17 of a relay 16.
The contact 17 has two alternative contacts b and c, one contact b is connected to the power supply line, and the other contact c is grounded. Contact 17 selects contact c when the relay coil 18 is de-energized, and selects contact b when it is energized. Relay coil 18
is connected to the power supply line at one end and to the relay drive circuit 19 at the other end. A hoisting signal B is applied to the relay drive circuit 19 through a hoisting signal input terminal 20, and the relay coil 18 is excited by the input of this hoisting signal B.

The winding signal B is given every time exposure is completed during normal photography, that is, when multiple photography is not performed, and is given by manual operation during multiple photography. The distinction between normal shooting and multiple shooting is selected, for example, by a mode changeover switch (not shown) provided on the camera body, and when normal shooting is selected, a winding signal B based on the end of exposure is automatically given each time the exposure ends. When multiple photography is selected, a winding signal B is given by operating a winding button (not shown).

A binary counter 21 is provided at the input stage of the exposure number imprinting section 3, and its input terminal is connected to the imprinting signal input terminal 1, and its reset terminal is connected to the winding signal input terminal 20. The counter 21 is
The imprint signal A is counted up until it is reset by the winding signal B, and this count output is given to the data selector 22. The data selector 22 has four output terminals 22a, 22b, 22c, 22d and a reset terminal connected to the hoisting signal input terminal 20, and decodes the binary output of the counter 21 into a decimal number. As shown in the figure, the first output terminal 22a is set to H level when the first imprinting signal A is input, and unless the winding signal B is input, the second and second output terminals are 3. Fourth output terminal 2
2b, 22c, and 22d are set to H level in sequence. Each output terminal 22a of such a data selector 22
- 22d are differential circuits 23a, 23b, and 22d, respectively.
Timer circuits 24a, 24 via 23c, 23d
b, 24c, and 24d are connected. Each of the differentiating circuits 23a to 23d triggers the timer circuits 24a to 24d when the corresponding output terminals 22a to 22d of the data selector 22 rise to the H level.
Each of the timer circuits 24a to 24d provides an H level output for a timer period determined according to the film sensitivity by the trigger of the corresponding differentiating circuit 23a to 23d. The output terminals of each timer circuit 24a to 24d are connected to transistors 25a, 25b, and 25, respectively.
The bases of c and 25d are connected. The emitter of each transistor 25a-25d is grounded. The collector of the transistor 25a is connected to a power supply line through a series connection of a resistor 26a and a first LED 27a. transistor 2
5b collector is resistor 26b and second LED 27
It is connected to the power supply line through a series connection with b. The collector of the transistor 25c is the resistor 26
The LED 27c is connected to the power supply line through a series connection between the LED 27c and the third LED 27c. transistor 25d
The collector of is connected to the power supply line through a series connection of a resistor 26d and a fourth LED 27d. Each LED 27a-27d therefore corresponds to a corresponding output terminal 22a-22d of the data selector 22.
becomes H level, the timer circuits 244a~
The light will be emitted during the timer time set by 24d.

Figures 3A and 3B are explanatory diagrams of the arrangement of the light source 4 and LEDs 27a to 27d for data imprinting in Figure 1; Figure 3A is an explanatory diagram of the arrangement seen from the front; It is an explanatory diagram of the layout as seen.

Light source 4 and LEDs 27a to 27d are film 30
is arranged on the photosensitive surface 30a side. The light source 4 is
The photosensitive surface 3 of the film 30 is displayed through a data display member 31 consisting of a liquid crystal display or a data memo board.
It faces 0a. In this example, the light source 4 and the data display member 31 are connected to the screen 30b of the film 30.
Numbers and characters such as the date are placed at the upper position between the film screen 30b and the film screen 30b so that they are imprinted on the film screen. The LEDs 27a to 27d are
They are arranged in a row on the substrate 32 at approximately equal intervals, and by their light emission, in this example, the dot marks shown in FIG. It is arranged so that it is included. Furthermore, Figure 4 shows
This shows a case where the LEDs 27a and 27b emit light, indicating that exposure has been performed twice.

In FIG. 3A, 33 is a film take-up spool, 34 is a film supply spool, and 35 and 36 are guide rollers. The film 30 is wound up in the direction of the arrow in the figure. Winding of the film 30 is performed by a winding motor 15 shown in FIG.

When multiplex photography is performed with the above configuration, a mode changeover switch (not shown) is operated so that a winding signal B is applied to the winding signal input terminal 20 by manual operation of a winding button (not shown). When the first exposure is performed by shutter release in this state, the first exposure signal A is applied to the exposure signal input terminal 1 in synchronization with this.

When the imprinting signal A is input, the output of the OR circuit 5 changes to H level, and the data imprinting light source 4
lights up for a limited time. When the light source 4 is turned on, the display data of the display member 31 is imprinted on the upper part of the film 30 between the screens 30b through the data display member 31.

Upon input of the imprint signal A, the binary counter 21 counts "1", and the count value is given to the data selector 22. As a result, as shown in FIG. 2, the first output terminal 22a of the data selector 22 changes to the H level, and the
a, timer circuit 24a and transistor 25a
The first LED 27a emits light for a limited time.
By the light emission of the LED 27a, a dot mark is imprinted on the lower part of the film 30 between the screens 30b.

When the second exposure is performed by shutter release, the second exposure signal A is input.
Since the transistor 9 continues to be off due to no application of the winding signal B, the output of the OR circuit 5 is held at an H level by the feedback circuit of the diode 6 and the resistor 7. Therefore, since the differentiating circuit 11 does not provide a trigger output for the second imaging signal A, the light source 4 will not be turned on.

On the other hand, since the counter 21 counts "2" with the second imprint signal, the data selector 22
The second output terminal 22b of the converter changes to H level as shown in FIG. 2, and the second output terminal 22b of the
The LED 27b emits light for a limited time. Due to the light emission of the LED 27b, the screen 30b of the film 30 and the screen 30b are
One more dot mark is imprinted at the lower position between.

For the third and fourth exposures, only the dot marks are imprinted without turning on the light source 4 for data imprinting, as in the case of the second exposure.

When a hoisting signal B is applied to the hoisting signal input terminal 20 by operating a hoisting button (not shown), the relay coil 18 is excited via the relay drive circuit 19, and the binary counter 21 and data selector 22 are reset. A signal is given. Since the common a of the contact 17 is connected to the contact b side by the excitation of the relay coil 18, the winding motor 15 is driven and the film 30 is wound, and at the same time, the transistor 9 is turned on and the OR circuit 5 is turned on.
The output of is reset to L level. Further, the counter 21 and data selector 22 are reset.

In normal photography, since the winding signal B is applied every time exposure is completed, a single dot mark is imprinted on the film 30 along with data such as the date.

In the embodiment described above, the number of exposures was indicated using a dot mark, but the LEDs 27a to 2
By providing a mask on the light projection surface 7b, the number of exposures may be expressed by the number of marks of arbitrary shapes. Further, in the above embodiment, the data and the number of exposures are imprinted on the blank space between the screens, but they may be imprinted on the upper or lower blank area.

[Effects of the Invention] As explained above, according to the present invention, since the number of marks corresponding to the number of exposures is imprinted on the film surface, it is possible to reliably and easily change the number of exposures of multiple shots after the film is developed. In addition, since the data imprinting function such as the date is operated only once during multiple shooting, it prevents blurring of the imprinted data caused by multiple imprinting of data. Therefore, it is possible to provide a camera multiple-photographing device that achieves effects such as:

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
The figure is an explanatory diagram of the operation of the data selector in Figure 1, and
Figures A and 3B are explanatory diagrams for explaining the arrangement of the light source and LED for data imprinting in Fig. 1, and Fig. 4 is a diagram showing a specific example of marks imprinted on the film surface. 1... Photographing signal input terminal, 2... Lighting control section, 3...
Exposure number imprinting section, 4... Light source for data imprinting, 5...
OR circuit, 9...transistor, 10...winding upper part, 1
6... Relay, 19... Relay drive circuit, 20... Hoisting signal input terminal, 21... Binary counter, 22...
Data selector, 23a, 23b, 23c, 23
d... Differential circuit, 24a, 24b, 24c, 24d
...Timer circuit, 25a, 25b, 25c, 25d
...transistor, 27a, 27b, 27c, 27
d...LED, 30...film.

Claims (1)

[Scope of Claims] 1. A device provided in a camera equipped with a multiplex shooting function, comprising a mark imprinting means capable of imprinting a plurality of marks, each representing one exposure, on a film surface; A camera comprising means for detecting the number of exposures until winding is performed, and means for controlling the mark imprinting means so as to imprint a number of marks corresponding to the detected number of exposures. Multiple shooting device. 2. A device installed in a camera equipped with a multiple shooting function and a data imprinting function for imprinting numbers or characters, which is capable of imprinting multiple marks on the film surface, each representing one exposure. a mark imprinting means provided separately from the data imprinting function; a means for detecting the number of exposures until the film is wound; and a means for detecting the number of exposures until the film is wound; 1. A means for capturing a number of multiple shots of a camera, comprising means for controlling the data capturing means, and means for activating the data capturing function only once during multiple shots.