JP2001056501A - Photographing data imprinting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographing data imprinting device capable of keeping the quality of imprinted photographing data and restraining the number of component parts to be small. SOLUTION: In this device, a photographing data displaying LCD 27 for displaying one or more kinds of photographing data at a time and a data imprinting LED arranged at the rear of the LCD 27 and imprinting the photographing data displayed by the LCD 27 between the perforations of film are integrally formed as a photographing data imprinting means capable of imprinting at least one kind of photographing data between the perforations out of a photographic image plane at a time on an imprinting module 21 having a date displaying LCD 25 and a date imprinting LED for imprinting date within the photographic image plane of the film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing data imprinting apparatus capable of imprinting a date and photographing data.

[0002]

2. Description of the Related Art A so-called monolithic seven-point light emitting LED arranged in a line in a vertical direction perpendicular to the running direction of a film is used as a photographing data imprinting device for photographing data of a camera between film perforations. Are known. This type of imprinting device imprints one line at a time in the vertical direction in conjunction with film running when winding or rewinding the film. Therefore, the instability of the film feed makes the imprinted characters and the like easily expand and contract. There was a problem. In addition, conventional cameras capable of imprinting photographing data have a separate imprinting unit for imprinting the date and an imprinting unit for imprinting the photographing data, so that the number of parts increases, and the number of parts increases. Assembly of the imprinting part and position adjustment work were required.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the conventional photographing data and date imprinting apparatus, and has been made in order to maintain the quality of the imprinted photographing data and to reduce the number of components. It is intended to provide a device.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a photographic data imprinting means for imprinting photographic data outside a photographic screen of a film and a date imprinting means for imprinting a date in a photographic frame of the film. It is characterized in that it is integrally formed as an imprinting module. Since the photographing data imprinting means is formed integrally with the date imprinting means, the number of components does not increase, and assembly and position adjustment do not become complicated. It is desirable that the photographing data imprinting means imprint at least one kind of photographing data at a time. By imprinting one or more types of photographing data at a time, each alphanumeric character that displays the photographed data,
Characters, symbols, and the like do not individually expand and contract, so that well-balanced photographic data can be imprinted. An imprinting module is formed of a liquid crystal panel, and on this liquid crystal panel, an image data display LCD and a date display LC are used as the image data imprinting means and the date imprinting means.
It is desirable to form D. In this case, behind each LCD, a light source, for example, an LED, for imprinting shooting data and date displayed by the LCD on a film is arranged. That is, the photographing data imprinting means is arranged along the film running direction, and is a photographing data display LCD that displays at least one kind of photographing data at a time, and is disposed behind the photographing data display LCD, and LC for data display
A configuration including a data imprinting LED for imprinting the photographing data displayed on D onto the film is possible and desirable. The shooting data to be imprinted is displayed on the LCD and the display is LED
By adopting a configuration for imprinting, it is possible to imprint small and fine characters as compared with the LED. The position where the photographing data is to be imprinted is desirably between perforations. In this case, it is desirable that, after filming, during the film winding by the film feeding device, between the perforations outside the already-photographed screen of the film, between the perforations, the photographing data be transferred once for each type. According to this configuration, since it is sufficient to detect only the imprint start position between frames, the number of times of detection is small, the running control and management of the film are easy, and even if the winding speed of the film is disturbed, the photographing data can be copied. The effect on the width of the print is small, and the proportions of the projected alphanumeric characters are small. The photographing data to be imprinted at a time may be one line or a plurality of lines.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a rear view showing a rear surface of a camera body of a single-lens reflex camera to which the present invention is applied, with a part of a back cover being cut away. In FIG. 1, a film cartridge (patrone) is loaded on the left side of the camera body 11, and a film F pulled out from the film cartridge is provided on the right side of the camera body 11 through an aperture 13 that regulates a shooting screen. Rolled up on a spool. Reference numeral 17 denotes a release button.

On the back side of the back cover 15, an imprint module 21 is provided between the back cover 15 and a pressure plate (not shown). The imprinting module 21 includes a date display LCD 25 for imprinting the date, day of the week, or time on the upper left of the photographing screen of the film facing the aperture 13 (lower right when printed). A photographing data display LCD 27 for imprinting photographing data between upper perforations is provided. The date display LCD 25 and the photographing data display LCD 27
Although not shown, is exposed to the film from a window formed in the pressure plate.

The configuration of the imprinting module 21 will be described in detail with reference to FIGS. The imprinting module 21 includes a liquid crystal panel 22 and a circuit board 24 integrated with a housing 23 interposed therebetween. The date display LCD 25 and the photographing data display LCD 27 are formed on the same liquid crystal panel 22 and include liquid crystal elements capable of displaying a date to be imprinted and photographing data, respectively. Behind the display LCDs 25 and 27, the display LCD 25 and the photographing data display LCD
The imprinting LEDs 26 and 28 for projecting (exposure) the date and data displayed on the film 27 on the film are arranged. The imprinting LEDs 26 and 28 are respectively provided in holding holes 23 of a housing 23 disposed behind the liquid crystal panel 22.
a, 23b. Behind the housing 23, these LCDs 25, 27, LEDs 26, 28
Is provided. The liquid crystal panel 22 and the circuit board 24 are connected to the long hole 23 of the housing 23.
c, it is elastically supported by the conductive rubber 24a penetrating therethrough, and a predetermined contact is conducted.

The date display LCD 25 includes eight sets of 7-segment units for forming alphanumeric characters so that dates can be collectively photographed on a still film photographing screen.
One set of units forming a semicolon and one unit forming a colon are provided. LCD for shooting data display
As shown in FIG. 4, a plurality of segment units 27a are provided so that data such as the number of frames, an exposure mode, a shutter speed, an aperture value, an exposure correction, and a lens focal length can be collectively captured in each data unit. , 27b, 2
7c, 27d, 27e, 27f, 27g, 27h, 27
i.

The date display LCD 25 and the photographing data display LCD 27 each constitute a so-called liquid crystal shutter, which is in a light-shielding state when no voltage is applied, and in a light-transmitting state when a voltage for forming data is applied. Thus, the photographing data is displayed by a combination of alphanumeric characters and codes. And LC for date display
A display LCD is provided by D25 and imprinting LEDs 26 and 28 arranged behind a data imprinting LCD 27.
The date and data formed by 25 and 27 are exposed on the film. The imprinting LEDs 26, 28
If one or more segment units are provided for each of the segment units 27a to 27i, the amount of light increases and the exposure time can be shortened. In addition,
Although not shown in FIG. 3, this imprinting module 21
A date display LCD 29 is provided to display the same content as the date imprinted on the date display LCD 25 outside the camera.

FIG. 2 is a circuit diagram showing main components of a control system mounted on the camera body 11 by blocks. This control system controls the ROM / R for controlling the entire camera.
It has a CPU 31 with a built-in AM. A battery 33 as a power source is connected to the CPU 31 via a DC / DC converter 35 and a voltage regulator 37, and is always operable when the battery 33 is loaded.

The CPU 11 has an LCD in a finder as a display means for displaying information necessary for photographing such as photographing information.
48 and an external LCD 50 are connected. CPU3
1 indicates that nothing is displayed on the LCD 48 in the viewfinder when the main switch SWM is turned off, and the external LCD 50
Displays necessary information before shooting. The information necessary before shooting is, for example, whether or not a film is loaded, if it is not loaded, that fact, if it is loaded, whether or not it has been wound up normally, during loading, the loading state, When winding up normally, the number of shots,
When rewinding after shooting is completed,
When the rewinding is completed, there is a rewinding complete state, and a display is made according to each state. Main switch SW
When M is on, the external LCD 50 displays the selected shutter speed, mode, and the like, in addition to the number of shots, and the in-finder LCD 48 displays nothing until the photometry switch SWS is half-pressed. After the AE calculation processing, information useful for shooting, such as the calculated optimum shutter speed and aperture value, is displayed on the external LCD 50 and the LCD 48 in the viewfinder. In the EEPROM 51 connected to the CPU 31, rewritable data such as photographing data such as the number of frames and a set photographing mode or variable parameters are written.

Further, a circuit board 24 of the imprinting module 21 is connected to the CPU 31 via a flexible printed board. The imprinting module 21 includes a date imprinting display LCD 25 and an external date displaying LCD 29 for displaying its data outside the camera, a photographing data displaying LCD 27 for imprinting photographing data, and an imprinting LED 28. Date display LC
The imprint mode for setting the display contents and arrangement order of D25 and D29, as well as the calendar and time, are controlled by a built-in clock IC. The light emission of the date imprinting LED 26 is controlled by the CPU 31. On the other hand, the display of the photographing data display LCD 27 and the light emission of the imprinting LED 28 are both controlled by the CPU 31.

The CPU 31 includes, as switch means, a main switch SWM, a photometric switch SWS, a release switch SWR, a winding end switch SWE, and a back cover switch SW.
A switch such as U is connected, and further, a DX code circuit 53 for reading a DX code relating to ISO sensitivity and the number of sheets from the DX code of the loaded film cartridge is connected.

The main switch SWM is a switch linked to a main switch button (not shown) mounted on the camera body. When the main switch button is turned on to turn on the main switch SWM, the CPU 31 starts. Then, the CPU 31 turns on the voltage regulator 37 to supply power to the peripheral members, and starts processing according to the operated switch.

The photometric switch SWS and the release switch SWR are switches which are linked with the release button 17 and are turned on when the release button 17 is half-pressed or full-pressed. When the photometric switch SWS is turned on, the CPU
An AE operation 31 calculates a subject brightness by inputting a photometric signal from the photometric IC 46 and calculates an optimal shutter speed Tv and aperture value Av in the selected exposure mode.

The back cover switch SWE is turned on when the back cover is opened.
The switch is turned off when closed and detects opening and closing of the back cover. The winding end switch SWE is a switch that works in conjunction with the shutter front curtain, and turns off when the shutter front curtain moves to the charge completion position and turns on when traveling is completed.

When the release switch SWR is turned on, CP
U31 energizes the locking magnet of the main mirror, which switches between the finder optical system and the photographing optical system (not shown), releases the locking of the main mirror, raises the main mirror, and operates the aperture control circuit 43, A stop-down mechanism for stopping down the aperture of the photographing lens in conjunction with the upward movement of the main mirror is locked at a position where the aperture of the photographing lens has an aperture value set by AE calculation. When the raising of the main mirror is completed, the shutter circuit 42 is operated based on the shutter speed set by the AE calculation, and the shutter first curtain and the rear curtain are driven to perform exposure. When the exposure is completed, the CPU 31 first causes the date imprinting LED 26 to emit light, and imprints the date displayed on the date display LCD 25 onto the film. Next, the motor driver IC3
The winding motor 39 is rotated in the winding / charging direction via 8 to wind the film and charge the shutter and the mirror. Here, the CPU 31
While counting the rising and falling edges of the film pulse output by the film encoder 45 linked to the winding of the film, the position where the photographing data display LCD 27 is located between predetermined perforations is detected based on the counted value, and the predetermined position is detected. LC for displaying shooting data every time it is located between perforations
After the display on D27, the imprinting LED 28 is caused to emit light, and a predetermined type of photographing data is collectively imprinted (exposed) between the perforations of the film. By imprinting one type of photographing data at a time, it is possible to prevent the width from expanding or contracting for each character or code of each data.

As shown in FIG. 5, in this embodiment, the photographing data to be imprinted are the number of frames, the exposure mode, the shutter speed, the aperture value, the exposure correction value, and the lens focal length. In FIG. 5, the film is placed in a direction in which the image is erected, characters such as "number of frames" indicate the type of photographing data to be imprinted, and these characters are not imprinted.

As is well known, the film encoder 45
Although not shown, for example, a sprocket having a claw that meshes with the perforation of the film, a movable contact piece (brush) that rotates integrally with the sprocket, and an on / off switch each time the movable contact piece slides and rotates the sprocket by a predetermined angle.
It is formed by a rotary encoder having a fixed contact piece that turns off. One of the fixed contacts is connected to a switch input of the CPU 31, and the CPU 31 changes the potential of the fixed contact, which changes each time the sprocket rotates a predetermined angle,
In other words, the rise and fall of the film pulse,
That is, the film pulse edge is detected. In the present embodiment, the feed amount for one frame of the film is set to correspond to 102 film pulse edges.

In FIG. 5, the longest auxiliary line in the vertical direction indicates the central position in the longitudinal direction of the photographing data display LCD 27 which faces when the film is stopped at the photographing position. The short auxiliary line is based on the long auxiliary line on the left when the number of edges of the film pulse output by the film encoder 45 is 13th, 26th, 41st, 54th, and 63rd. LC for shooting data display
The position of the center in the longitudinal direction of D27 is shown.

In the illustrated embodiment, when a predetermined frame of the film is stopped at the photographing position, the number of frames can be imprinted between the first and second perforations corresponding to one frame. When the film is wound up from the shooting position, the exposure mode can be imprinted between the second and third perforations when the film encoder 45 outputs the 13th edge film pulse. When the film encoder 45 outputs the film pulse on the 26th edge, the shutter speed is set between the third and fourth perforations.
When the film pulse at the first edge is output, the aperture value is set between the fourth and fifth perforations. When the film encoder 45 outputs the film pulse at the 54th edge, the exposure value is corrected between the fifth and sixth perforations. When the film encoder 45 outputs the film pulse at the 63rd edge, the lens focal length can be imprinted between the sixth and seventh perforations.

In the present embodiment, the number of frames is displayed as, for example, "04" using the segment units 27e and 27f of the photographing data display LCD 27, and the exposure mode is set to any one of the four segment units 27d to 27g. Use, for example, in aperture priority mode, segment unit 2
7e and 27f are used to indicate "AV", and the shutter speed is the reciprocal of the segment units 27d to 2d.
For example, when the time is 1/250 second, "250" is displayed using the segment units 27d to 27e, and the aperture value is set to the segment unit 27.
Using a to 27d, for example, in the case of F8, “F8” is displayed using the segment units 27a and 27b,
The exposure correction value is displayed using the segment units 27a to 27d. For example, when the value is + 3.5Xv, the segment units 27a to 27d are used to display "+3.5", and the lens focal length uses the segment units 27d to 27i. For example, when the focal length is 300 mm, "300MM" is displayed using the segment units 27e to 27i. The reason why the imprint position of each photograph data is not set at the same interval as the number of edge pulses is that the display position on the photograph data display LCD 27 differs depending on the photograph data, so that the photograph data is adjusted so that the photograph data can be photographed almost at the center between perforations. Because he did. It goes without saying that the type, order, and position of the photographing data to be imprinted are not limited to the illustrated embodiment.

The details of the date and photographing data imprinting process will be further described with reference to the flowcharts shown in FIGS. The process shown in this flowchart is a process executed by the CPU 31 by a program written in the internal ROM of the CPU 31.

The entire camera processing shown in FIG. 6 is called when a power source (battery) 33 is loaded in the camera body 11. When the entire camera processing is started, first, hardware-related initialization such as each port of the CPU 31 and the RAM is executed (S11), and further, software-related initialization such as a stack and various parameters is executed (S13), and the power is first turned off. (S15). Thereafter, S11 and S13
The hard initialization process and the soft initialization process are not executed until the battery 33 is reloaded.

In the power-off process executed in step S15, the power to the peripheral circuits is cut off. The clock IC of the imprinting module 21 is operated by the battery loaded in the imprinting module 21 and displays the date on the date display LCDs 25 and 29. When the power is turned off (S15), a main switch OFF loop process is started.

In the main switch OFF loop processing, first, the states of all the switches are input, and the main switch SWM
Is turned on (S21, S2)
3). If the main switch is off (S23;
N), a 250 ms (millisecond) timer interrupt is set (S25), and CPU standby mode is entered (S2).
7). The 250 ms timer interrupt is a timer that sets a cycle for periodically activating the CPU 31 and performing a switch check. The CPU standby mode is a mode in which the CPU 31 operates with low power consumption, such as the CPU 31 operating with a low-speed clock. .

When 250 ms have elapsed (the 250 ms timer has expired), the CPU 31 is activated (S29), returns to the main switch OFF loop processing, and repeats the processing of S21 to S29 until the main switch is turned on.

When the main switch is turned on (S23;
Y), the power is turned off, and a PH OFF (power hold off) loop process is started (S31). When the PH OFF loop processing is started, the value of the film counter and the ISO sensitivity are displayed on the external LCD 50 (S41), and the state of all switches is inputted to check whether the main switch is on (S43, S45). If the main switch has not been turned on, the process returns to the main switch OFF loop processing (S45; N). If the main switch has been turned on, the photometry switch interrupt is permitted (S45; Y, S47).
Set 250ms timer interrupt and set photometry switch SW
Check whether there is an S interrupt (S49,
S51).

If there is no light metering switch SWS interrupt, that is, if the light metering switch SWS is not turned on (S51; N), the CPU 31 enters a standby mode (S53) and waits for 250 ms to elapse (250 ms timer expires). When the time has elapsed, the CPU 31 is activated and returns to the PH OFF loop processing (S55).
The FF loop process is repeated until the main switch is turned off or a photometric switch SWS interrupt is issued.

If there is a photometering switch SWS interrupt (S51; Y), the power is turned on to supply power to the peripheral circuits, the photometering 10 second timer is started, and a PH ON (power hold on) loop process is started (S57). , S5
9). Here, the release switch SWR is turned off for 10 seconds after the PH ON loop process is started.
This is a timer for exiting the PH ON loop processing when N is not performed.

When entering the PH ON loop processing, first, the on / off states of all switches are read to check whether the main switch is ON (S61, S6).
3). If the main switch is not ON, the process goes to S15 (S63; N, S15). When the main switch is ON (S63; Y), the AE calculation process is executed (S65). In the AE calculation process, for example, the photometric IC 46
Based on the photometric data, ISO sensitivity data, and aperture value data of the photographic lens, the appropriate shutter speed and aperture value are obtained in the set photographic mode.

The shutter speed and the aperture value obtained by the AE operation are displayed on the LCD 48 in the viewfinder and on the external LCD 50 (S67). Then, the 125 ms timer is started (S69), and the release switch SWR interrupt is permitted (S71). The 125 ms timer is a timer for setting a cycle in which switch input, main switch check, AE calculation processing, and the like are repeated in the PH ON loop processing.

Then, it is checked whether or not 125 ms has elapsed (the 125 ms timer has expired) (S73).
If the time has not elapsed, it is checked whether or not the photometric timer time has elapsed (S73; N, S75). If the time has not elapsed, it is checked whether or not a release interrupt has occurred (S75; N, S77). If there is no interruption, the flow returns to S73 and the above S73 to S77
(S77; N, S73).

When 125 ms has elapsed (S73; Y), PH
The process returns to the ON loop process, and returns to S31 when the photometric timer time has elapsed (S75; Y). Then, if there is a release switch interrupt (S77; Y), that is, if the release switch SWR is turned on, a release process is executed (S79). In this release process, after shooting is completed,
That is, after completion of the rear curtain drive, the imprinting LED 26 is turned on, the date is displayed on the date display LCD 25, the date imprinting process is performed, and the film is wound up by one frame, and a winding process for mechanical charging is executed (S81).
Wind up, start photometric 2 second timer and turn on PH
The process returns to the loop processing (S83). After the release, the photometry timer time becomes 2 seconds.

In the embodiment of the present invention, imprinting of photographing data is executed in this winding processing (S81). Therefore, the details of the winding processing will be described with reference to the winding processing subroutine shown in FIG.

In the winding process, first, various data for imprinting are set (S101), and imprinting hardware is prepared (S103). That is, the shooting data display L corresponding to the shooting data to be imprinted (number of frames, exposure mode, shutter speed, aperture value, exposure correction value, lens focal length)
The display pattern of the CD 27 is read from the table data written in the EEPROM 51 in advance and a predetermined RA is read.
Set to M to initialize the state of the port for imprinting. Next, the winding motor is turned on (S105), that is, power is supplied in the film winding direction, and the process proceeds to Wind_Loop (wind loop) processing. And usually, film 1
Until the winding of the frame is completed, the Wind_Loop process and the Time_Loop (time loop) process are repeated without returning to the steps S101, S103 and S105.

In the Wind_Loop process, 250
μs (macro second) timer is started (S111),
It is checked whether two seconds have elapsed after the hoist motor is turned on (S113). If two seconds have elapsed (S113;
Y) That is, if the film could not be wound by one frame even after 2 seconds from the start of film winding, there was some film winding error, so the winding motor was stopped,
Execute the winding NG process and return (S121, S
123). In the winding NG process, the winding motor is stopped, and the external LCD 50 is notified that a film feeding error has occurred.
For example, it is a process of blinking and displaying a film mark.

If two seconds have not elapsed after the winding motor is turned on, it is checked whether there is a film (S11).
3; N, S115). The presence or absence of the film is determined from the value read by the DX code reading circuit 53. If there is a film, it is checked whether a film pulse edge has been detected after executing the film pulse chattering removal processing (S115; Y, S125, S127). In the film pulse chattering process, when the output level of the film encoder 45 changes, the level is not stable. Therefore, when the output level changes, the process waits for a short time until the output level stabilizes, or removes the fluctuating component. In this embodiment,
As shown in FIG. 5, the film is formed so as to output 102 film pulse edges while the film travels for one frame.

If the film pulse edge has not been detected (S127; N), the time loop (time_Loo)
p) Execute the process. In the time loop processing, it is checked whether data imprinting is OK (S151). If data imprinting is OK (S151; Y), data imprinting start standby processing is executed, and data imprinting processing is executed to perform perforation. The predetermined photographing data is imprinted in between (S153, S155). Then, it waits for the 250 μs timer to time out (S157), and returns to the Wind_Loop processing when the time is over (S157;
Y). If data imprinting is not OK (S151;
N), skip steps S153 and S155 and wait until the 250 μs timer times out (S151; N, S
157), if the time is over, the process returns to the Wind_Loop process (S157; Y). Note that the data imprinting OK check in S151 is a flag in which the user sets in advance a mode setting operation (not shown) to imprint or not imprint the photographing data, and is written in the EEPROM 51. In the initial setting, data imprinting is OK. The imprint start standby process of S153 is a process of waiting for the value of the film pulse counter to coincide with a preset film edge pulse number indicating a write start position.

When the film pulse edge is detected in the check processing of S127 (S127; Y), the film pulse counter is incremented by 1 (S129), and it is determined whether or not 102 edge counting has been completed, that is, whether or not 102 edges have been counted. Check (S13
1). Note that the film pulse counter is cleared to 0 when the winding process starts for the first time. If the 102 edge count has not been completed (S131; N), since the film has not been wound up by one frame, the process proceeds to the time loop process.

If the 102 edge count has been completed (S131; Y), since the winding for one frame has been completed,
It is checked whether it is the last frame (S133). If it is not the last frame, the film magnet 41 is turned on to lock the winding spool, the connection between the winding spool and the winding motor is interrupted, the film winding is stopped, and the next unexposed frame is stopped at the photographing position ( 133; Y, S1
37). Then, it is checked whether or not the winding completion switch SWE which is turned off when the shutter charge is completed (when the shutter leading curtain has moved to the charge completion position) is turned off (S139). Normally, the shutter charge is set to be completed earlier than the film winding, but a process for completing the shutter charge when the shutter charge is not completed even when the film winding is completed. It is. If the winding end switch SWE is off (S13
9; Y), the winding motor is stopped, the film counter is incremented by 1, and the routine returns (S141, S1).
43). The last frame is a DX code reading circuit 5
3 is set according to the number of shots read via.

If the last frame check in S133 indicates that the frame was taken up (S133; Y), a film rewinding process is executed to return (S135).
In the film rewinding process, S137 and S13
9, that is, check whether the winding completion switch is turned off, and if it is not turned off, wait until it is turned off to complete the mechanical charging.
And rewind the film.

Returning at the end of the winding of the last frame means that even if the frames after the last frame are shot, the winding for one frame cannot be performed, the mechanical charging is not completed, or all the shot data is copied. This is because it may not be possible. If the last frame does not need to be able to imprint the photographing data, for example, the process proceeds from the affirmative branch of S131 to S137 except for the steps of S133 and S135. A check process is performed between S121 and S123 to determine whether the value of the film counter is larger than the value of the last frame. If the value is larger, the film rewinding process is executed, and if not larger, the process proceeds to S123. I do.

Next, the details of the data imprinting process in S155 will be described in more detail with reference to the flowcharts shown in FIGS. In the data imprinting process, a predetermined type of photographing data is photographed each time a predetermined perforation of the film coincides with the position facing the photographing data display LCD 27 while counting the film pulse edges via the film encoder 45. And enters every 250 μs. In this embodiment, the type of data to be imprinted is the number of frames, the exposure mode, the shutter speed,
These data are an aperture value, an exposure correction value, and a lens focal length. These data are written in, for example, the EEPROM 51, and the form of photographing data displayed on the photographing data display LCD 27 is read from a comparison table written in the EEPROM 51. . The order of imprinting is managed by a data type counter. In this embodiment, the number of frames, exposure mode, shutter speed, aperture value, exposure correction value, and lens focal length are assigned to the count values 0 to 5 of the data type counter. Have been.

In the data imprinting process, it is checked whether or not imprinting is to be initialized, that is, whether the process is the first process (S201). If imprinting is to be initialized, the data type counter is set to 0, that is, cleared. Proceeding to S205, (S201; Y, S203, S
205), if it is not the copying initialization, that is, if it is the second time or later, S203 is skipped and S205 is skipped.
(S201; N, S205).

In step S205, it is checked whether or not the last imprinting LED 28 has been illuminated (previously emitting light).
28 is turned off (S205; Y, S207). Since the data imprinting process is performed every 250 μs, the light emission time of the imprinting LED 28 is 250 μs. If light emission is not performed last time, S207 is skipped (S205; N),
It is checked whether "1" is set in the light emission completion flag (S209). The light emission completion flag is a flag that is set in S251 when the imprinting of all the photographing data is completed. If "1" is set in the light emission completion flag, the process returns (S209; Y). If "1" is not set, it is checked whether or not the light emission timing is reached (S209; N, S211). If the timing is not the light emission timing, the process returns (S211; N). Whether or not the light emission timing is determined when the value of the film edge pulse counter is 13, 2
The determination is made based on which of 6, 41, 54, and 63 it is.

If the data type counter is 0, the number of frames is imprinted.
(S213; Y, S215). Then, the data type counter is incremented by 1 (S245),
The imprinting LED 28 is turned on, and the photographing data display L
The frame data displayed while the display of the CD 27 is continued for a predetermined time is printed on a film (S247). The lighting of the imprinting LED 28 is continued until it is turned off in S207. Then, it is checked whether the data type counter is 6, that is, whether all six types of data have been imprinted (S249). Since the data type counter is 1, S
251 is skipped and the process returns (S249; N).
If the data type counter is 6, the printing is completed, so that "1" is set to the light emission completion flag and the process returns (S2).
49; Y, S251). If the light emission completion flag is set to “1”, even if the data imprinting process is started, S209
, The photographing data is not imprinted.

If the data type counter is 1 (S21)
7; Y), the routine returns if the film edge (the value of the film pulse counter) is not 13 (S219; N).
If the data type counter is 1 and the film edge is 13 (S217; Y, S219; Y), the exposure mode is displayed on the photographing data display LCD 27 (S221), and the data type counter is incremented by 1 (S245).
The imprinting LED 28 is turned on to imprint the exposure mode (S247), and the process returns (S249; N).

Similarly, if the data type counter is 2 (S223; Y), it waits until the film edge (the value of the film pulse counter) reaches 26 (S225; N),
If the data type counter is 2 and the film edge is 26 (S223; Y, S225; Y), the shutter speed T
v is displayed on the photographing data display LCD 27 (S22
7), the data type counter is incremented by 1 (S2
45), the imprinting LED 28 is turned on, the shutter speed Tv is imprinted, and the process returns (S247, S249;
N).

Similarly, if the data type counter is 3 (S229; Y), it waits until the film edge (the value of the film pulse counter) becomes 41 (S231; N),
When the data type counter is 3 and the film edge is 41 (S229; Y, S231; Y), the aperture value Av is displayed on the photographing data display LCD 27 (S233), and the data type counter is incremented by 1 (S245).
The imprinting LED 28 is turned on to imprint the aperture value Av, and the process returns (S247, S249; N).

If the data type counter is 4, (S23)
5; Y), wait for the film edge (the value of the film pulse counter) to reach 54 (S237; N), and if the data type counter is 4 and the film edge is 54 (S237),
235; Y, S237; Y), the exposure correction value Xv is displayed on the photographing data display LCD 27 (S239), the data type counter is incremented by 1 (S245), and the imprinting LED 28 is turned on to set the exposure correction value Xv. The image is copied and the process returns (S247, S249; N).

If the data type counter is not 4 (S2
35; N), that is, if the data type counter is 5, wait until the film edge (the value of the film pulse counter) reaches 63 (S241; N), and the data type counter is not 4 and the film edge is 63. If it is (S235; N, S241; Y), the focal length is displayed on the photographing data display LCD 27 (S243), the data type counter is incremented by 1 (S245), and the imprinting LED 28 is turned on to capture the focal length. (S24
7). Then, since the data type counter is 6, the light emission completion flag is set to "1" and the process returns (S249; Y, S251).

As described above, according to the embodiment of the present invention, since the photographing data display LCD 27 capable of imprinting one kind of photographing data at a time is photographed collectively for each kind of photographing data. Position management and film feed speed control are simple. In addition, since the intervals between individual characters, codes, and the like for displaying the captured photographed data are constant, it is easy to see with high quality. Moreover, LC for display of shooting data
D27 and imprinting LED 28, date imprinting LCD 25 for imprinting the date and date imprinting LED
26 and the integral imprinting module 21,
The number of parts does not increase, and assembly and position adjustment become easy. In this embodiment, the photographing data imprinting means is constituted by a display LCD and an imprinting LED in order to correspond to fine characters and the like, but may be constituted by an LED similarly to the date imprinting means. .

In the illustrated embodiment, the photographing data to be imprinted is displayed on one line for each type and imprinted. However, it may be configured to be displayed over a plurality of lines and imprinted. May be arranged as one line, and a plurality of lines are printed at a time.

[0055]

As is clear from the above description, the present invention
Since the shooting data imprinting means for imprinting the shooting data outside the film shooting screen and the date imprinting means for imprinting the date in the film shooting frame are integrally formed as the same imprinting module, the number of parts is small. , Assembly and position adjustment become easy. Further, according to the present invention, since the photographing data can be imprinted for each type at a time, the management and control of the imprinting position and the film feeding speed control are simple and easy. In addition, individual alphanumeric characters, codes, and the like that display photographing data do not expand or contract, and high-quality photographing data can be imprinted.

[Brief description of the drawings]

FIG. 1 is a cutaway view of the back of a camera body of a single-lens reflex camera to which the present invention is applied, and a date imprinting LED and photographing data imprinting of an imprinting module according to an embodiment of the present invention; FIG. 2 is a rear view showing a schematic configuration of the embedded LCD.

FIG. 2 is a circuit diagram showing, as blocks, main components of a control system mounted on the camera body of the embodiment.

FIG. 3 is an exploded perspective view showing the structure of the imprinting module.

FIG. 4 is a diagram showing an example of the arrangement of a data display LCD mounted on the camera body of the embodiment.

FIG. 5 is a diagram illustrating a relationship between a film, a date, and a position where a photographing data is imprinted in the embodiment.

FIG. 6 is a flowchart showing the entire camera processing according to the embodiment;

FIG. 7 is a flowchart showing a subroutine of film winding processing in the whole camera processing.

FIG. 8 is a flowchart showing a part of a subroutine of a data imprinting process in the film winding process.

FIG. 9 is a flowchart showing a part of a subroutine of a data imprinting process in the film winding process.

FIG. 10 is a flowchart showing a part of a subroutine of a data imprinting process in the film winding process.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 camera body 15 back cover 21 imprinting module 25 date display LCD 26 date imprinting LED 27 shooting data display LCD 28 shooting data imprinting LED 31 CPU 48 viewfinder LCD 50 external LCD 51 EEPROM

Claims (8)

[Claims] 1. A photographing data imprinting means for imprinting photographing data out of a photographing screen of a film and a date imprinting means for imprinting a date in a photographing frame of the film are integrally formed as the same imprinting module. A photographing data imprinting device characterized by the above-mentioned. 2. A photographing data imprinting apparatus according to claim 1, wherein said photographing data imprinting means imprints at least one kind of photographing data at a time. 3. A photographing data imprinting device according to claim 1 or 2 is mounted on a camera provided with a film feeding device, and said photographing data imprinting means performs film winding by said film feeding device after photographing is completed. A photographing data imprinting device for imprinting the photographing data for each type at a time between perforations outside the already photographed screen of the film; 4. The photographing data imprinting apparatus according to claim 1, wherein said imprinting module includes a liquid crystal panel, and said photographing data imprinting means and said date imprinting means include said liquid crystal panel. LCD for photographing data display and L for date display formed on panel
A photographing data imprinting device equipped with a CD. 5. A photographing data imprinting device according to claim 4, wherein said photographing data imprinting means includes: a photographing data display LCD for displaying at least one kind of photographing data at a time along a film running direction; The imaging data display LC is disposed behind the imaging data display LCD.
A photographing data imprinting device comprising a data imprinting LED for imprinting the photographing data displayed on D onto a film. 6. The photographing data imprinting apparatus according to claim 5, wherein the photographing data display LCD is provided at a position where the displayed photographing data can be projected between the perforations outside the photographed screen of the film and between the perforations. Photographic data imprinting device to be arranged. 7. The photographing data imprinting apparatus according to claim 4, wherein the photographing data display LCD displays predetermined photographing data in one line. 8. The photographing data imprinting apparatus according to claim 4, wherein the photographing data display L
The CD is a photographing data imprinting device that displays predetermined photographing data on one or more lines.