JP3472114B2 - Camera data imprinting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data imprinting device for a camera that imprints predetermined information on a film.

[0002]

2. Description of the Related Art In recent years, various devices for imprinting data on a film have been developed. As the imprinting device, there are one in which light emitting elements are arranged vertically and horizontally in a two-dimensional (matrix) form, and one in which the light emitting elements are arranged one-dimensionally (one line) in a direction orthogonal to the traveling direction of the film. In a data imprinting device having a light emitting element array arranged in one dimension, two-dimensional data is formed by repeating a process of causing a predetermined light emitting element of a light emitting element array to emit light while running a film at a predetermined time interval. ing.

However, in the conventional imprinting apparatus, characters and figures to be imprinted (hereinafter referred to as "characters") are formed by one matrix data having a constant number of bits in the vertical and horizontal (column, row) directions. . When the transfer of one matrix data is completed, the next matrix data is transferred at a predetermined interval. Therefore, this 1
It was not possible to form a large character that cannot be formed with individual matrix data or a long character that requires multiple matrix data.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a data imprinting device for a camera capable of imprinting information such as one cohesive character, a character string, and a graphic seamlessly.

[0005]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention according to claim 1 repeatedly emits a light emitting means provided with a plurality of light emitting members arranged in a direction orthogonal to the traveling direction of the film while the film is traveling. A data imprinting device for a camera that imprints predetermined data in the film running direction, and imprinting information setting means for setting the information imprinting on the film as matrix data for each group of information. an encoder for emitting a detection signal for each predetermined travel distance in conjunction with the running of the film, the sensing
Counting means for measuring a signal output interval;
When the radar outputs the predetermined detection signal,
And when copy start criteria of Mari information, the counting hand
The time required from the output of the detection signal immediately before the reference time of the start of copying to the output of the detection signal of the reference time measured by Dan
Light emission for repeatedly emitting the light emitting means based on time
In the light emitting interval set the interval, and the setting of the reference time
And a light emission control unit that imprint the information cohesive set by the information setting means by emitting the light emitting unit based on the matrix data on the film,
The light emission control means is configured to measure the elapsed time measured by the counting means.
If the interval is shorter than the specified range, the matrix data
To cause a part of the light emitting means to emit light ,
It is characterized by In a preferred embodiment, the counting means
If the elapsed time measured by is shorter than the specified range,
In the tricks data, the overlap in the running direction of the film
Data to be skipped. Further, the light emission control means
Is the elapsed time measured by the counting means within a predetermined range.
If it is longer, increase the light emission interval. Preferred in this case
In the embodiment, the light emitting time of the light emitting means is constant.
The light emission control means is measured by the counting means.
When the elapsed time is within the predetermined range
When the same time is set and the elapsed time is longer than the specified range
Sets the light emission interval to twice the light emission time.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. FIG. 11 is a cross-sectional view showing the main part of a medium format (Brownie version) single lens reflex camera to which the present invention has been applied. A single-lens reflex Brownie version camera 11 using an interchangeable film pack has a box-shaped camera body 13 in which a photographing lens is mounted in the front part, and a camera body 13 in which a photographing optical system is provided in a rear stage. The provided mirror box 15,
The film back housing 17 is provided at the rear of the camera body 13, and the partition 19 is provided between the inside of the mirror box 15 and the film back housing 17 provided on the front side of the film back housing 17. An exposure area setting aperture 21, a focal plane shutter 23 that opens and closes the aperture 21, a viewfinder 25 provided on the top of the camera body 13, and a replaceable film back that is detachably attached to the film back housing 17. 27 and a data imprinting unit 29.

The film back 27 has a film back main body 271 which is mounted inside the film back accommodation portion 17 from a rear opening thereof.
1 includes a lid member 272 that closes the rear opening of the film back housing portion 17, and a film pressure plate 273 provided at the front end of the film back main body 271.

Inside the film back body 271, a first film guide roller 274 is provided near the lower part of the film pressure plate 273, and a second film guide roller 275 is provided near the upper part of the film pressure plate 273. . These first and second film guide rollers 274, 2
75 are parallel to each other and are horizontally and rotatably supported. The film encoder 123 is arranged in contact with the first film guide roller 274. Although not shown, the film encoder 123 includes a roller that contacts the first film guide roller 274 with the film interposed therebetween, an encoder plate that rotates together with the roller, and a photocoupler that detects the rotation of the encoder plate and outputs a pulse signal. There is. An unexposed Brownie film 276 of 120 type or the like is loaded at a position located behind the first film guide roller 274. Brownie film 2
76 is a delivery spool 27 in which paper and film are combined.
6A is wound into a roll.

A film take-up spool 277 is rotatably supported in parallel with the second film guide roller 275 at a position located behind the second film guide roller 275 in the film back main body 271. Also,
Film guide rails 33 for guiding the film 278 pulled out from the Brownie film 276 are provided on the left and right sides outside the aperture 21 facing the left and right ends of the film pressure plate 273 on the camera body 13 side.
Film 2 pulled out from the feeding spool 276A
78 is wound around the first film guide roller 274, and then the film pressure plate 273 and the film guide rail 33.
It is configured to be wound around the second film guide roller 275 through the gap and wound around the film winding spool 277. When winding the film 278, the film take-up spool 277 or the pay-out spool 276A is driven by a wind motor provided on the camera body 13 side and a well-known driving device (not shown) via a rotation transmission mechanism built in the film back 27. It is done by rotating.

As shown in FIG. 11, FIG. 12 and FIG. 13, the upper wall 1702 in the film back housing 17 on the side of the camera body 13 is located at a position corresponding to the widthwise edge of the film 278. A long notch 1704 is formed in the front and rear, and the data imprinting unit 29 is arranged in the notch 1704. Data imprinting unit 2
As shown in the enlarged view of FIG. 12 in its plane, 9 is a housing 291 which is long in the front-back direction of the film back accommodation portion 17.
And LED light emission of a plurality of dots (for example, 7 dots) arranged in a row (row) direction orthogonal to the traveling direction of the film 278, which is housed in the rear part of the housing 291 and emits light according to the imprint information. Data LE with elements
D121, a reflection window 294 formed in the front part of the housing 291, and the data LED 1 in the housing 291.
21 to the front part of the housing 291.
An image forming optical system 293 is provided for forming an image of the characters and graphic patterns emitted by the data LED 121 on the portion of the film 278 wound around the second film guide roller 275 through the reflection window 294.

The front lower surface 295 of the housing 291 is formed as a smooth guide surface which comes into contact with the film 278 smoothly, and the transfer window 294 is opened in the front lower surface 295. Support shafts 296 are projectingly provided on both sides of a rear portion of the housing 291, and these support shafts 296 are rotatably supported by holes provided in the upper surface wall 1702. Therefore, the housing 291 swings about the support shaft 296. Possible, housing 2 with a transmissive window 294 formed
The front lower surface 295 of the 91 is the second film guide roller 2
It can be displaced in a direction of approaching and separating from the surface of the film 278 wound around 75. A torsion spring 298 is mounted on the side of the upper wall 1702, and one end of the torsion spring 298 is locked to the rear end of the housing 291 so that the front lower surface 295 of the housing 291 is covered with the film 27.
8 is always urged in the direction of abutting. Further, stopper pieces 299 are provided on both sides near the front end of the housing 291, and the stopper pieces 299 abut on the upper surface walls 1702 on both sides of the notch 1704, whereby the upper limit position of the front end of the housing 291 is increased. Are defined as follows.

In the single-lens reflex camera constructed as described above, when the film 278 of the film pack 27 has been loaded by the wind device and the release button is half-depressed in a state where the filming is possible, the brightness of the object is measured through the photometric sensor. The proper shutter speed Tv and aperture value Av
Is calculated, and the focusing lens group of the photographing optical system is moved to the focusing position by the AF device.

After that, when the release button is fully pressed, the calculated aperture value and shutter speed are set, the main mirror 31 jumps up, and the front curtain 231 and the rear curtain 232 of the focal plane shutter 23 operate to operate the aperture. The film 278 facing 21 is exposed. At the same time as the focal plane shutter 23 is closed, the main mirror 31 returns to its original position and the diaphragm is opened. Further, the film 278 of the film pack 27 is wound up by one frame by the wind device.

When the film 278 is wound up, the data LEDs 121 are sequentially emitted in synchronism with the film feeding speed to expose predetermined data on the final exposed portion of the film 278. By this data imprinting process, film 2
The data D can be imprinted on the unexposed portion of 78, that is, on the edge of the film 278 in the width direction, as shown in FIG.

The main part of the circuit configuration of this medium-format single-lens reflex camera will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram showing a main circuit, and FIG. 2 is a timing chart at the time of exposure, wind, and data imprinting. This single-lens reflex camera is provided with a CPU 101 as a control means for integrally controlling the operation of the entire camera, a photometric IC 105 for subject brightness measurement, a CCD 107 for AF, and a DPU 103 for controlling a flash circuit 109. The CPU 101 uses the attached photographing lens 201.
The CPU 203 executes predetermined communication with the CPU 203 to receive the lens information.

The switch inputs of the CPU 101 include a group of switches operated by the photographer such as a photometric switch SWS and a release switch SWR, a mirror up / down detection switch SWMRDN, a rear curtain running completion detection switch, a film detection switch, and the like. A switch group 111 including a switch group that is turned on / off by operation is connected.

When the photometric switch SWS is turned on, the photometric I
The subject brightness signal is input from C105, the aperture value and the shutter speed are calculated based on the film sensitivity, etc.
107 is driven to calculate the defocus amount, and the AF motor AM is operated via the motor driver 113. AF
The rotation of the motor AM is transmitted to the photographing lens 201 via a transmission mechanism (not shown) and a focus lens drive mechanism, and the focus adjustment lens group is moved to the in-focus position.

When the release switch SWR is turned on, C
PU101 is the leading and trailing curtain magnets ESMg1 and ES
By energizing Mg2, the shutter front curtain 231 and the rear curtain 23
2 is locked by electromagnetic force, release magnet RMg
Is energized to release the mechanical lock of the shutter front curtain, the rear curtain charge spring, and the mirror charge spring. And
Due to the restoring force of the mirror charge spring, the main mirror 31
When the diaphragm of the photographing lens reaches the predetermined diaphragm value obtained by the previous calculation, the driving of the diaphragm driving mechanism that is driven in association with the increase of the diaphragm is stopped by energizing the diaphragm magnet EEMg. When the mirror-up is completed, the energization to the front curtain magnet ESMg1 is cut off, the shutter front curtain is moved to start the exposure, and when the previously calculated shutter speed (exposure time) has elapsed, the rear curtain magnet ESMg2 is energized. Is shut off and the shutter rear curtain 232 is made to run to complete the exposure.

When the exposure is completed, the motor driver 115
The mechanical charge motor MM and the film wind motor WM are started via the to wind the film by one frame (wind), and the shutter charge spring and the mirror charge spring are charged. In this embodiment, data is imprinted on the film wind.

Next, the configuration and operation of one embodiment of the data imprinting device, which is a feature of the present invention, will be described. In the CPU 101, a data LED 121 for printing data on a film, a film encoder 123 for outputting a pulse in association with the running of the film, an EEPROM 12 in which a data table for printing is written in advance.
5, a camera 127 such as a shutter speed, an aperture value, and the number of shots, and an LCD 127 for displaying various data relating to the shots are connected.

After the exposure, the CPU 101 turns on the data LED 121 in tandem with the operation of the film wind motor WM at the time of winding the film to expose predetermined data on the film. This imprinting operation will be described with reference to the flowcharts shown in FIGS.

FIG. 3 is a flowchart relating to the main processing of this single-lens reflex camera. In this main process,
Wait for the metering switch SWS to be turned on, and when the metering switch SWS is turned on, metering and exposure calculation processing (AE
Processing) to obtain the optimum aperture value and shutter speed, focus detection processing and lens drive processing (AF processing) to focus on a desired subject, and release switch SW
When R is turned on, exposure processing is executed at the aperture value and shutter speed obtained by the AE processing, and after the exposure is completed, film wind and data imprinting processing are executed.

This main processing is started when the battery is loaded. In this process, first, the internal RAM of the CPU 101 is initialized (S101). Then, the power supply to the circuits other than the CPU 101 and the electronic parts is shut off, and the photometric switch SWS is turned on (S1).
03, S105). When the photometric switch SWS is turned on, power supply to peripheral devices is started, VDD loop processing is executed, and the release switch SWR is turned on (S107).

When entering the VDD loop processing, the VDD loop time timer is started (S111), the state of each switch is checked (S113), and the lens CPU 203 is started.
A predetermined lens communication is executed between the lens and the lens, and lens data such as the maximum aperture value, the minimum aperture value, and the focal length data is input (S115).

Then, AE calculation processing is executed (S11
7), display related to shooting, such as the shutter speed calculated, is displayed (S119). The AE calculation process is a process in which the subject brightness is measured by the photometric IC 105 and the appropriate shutter speed and aperture value are calculated by a predetermined exposure mode, for example, a program exposure mode, based on the subject brightness data and film sensitivity data.

When the shutter speed and aperture value are obtained, C
The defocus amount and the number of AF pulses are obtained by the integration processing and focus detection processing of the CD 107, and the AF processing for moving the focus adjustment lens group to focus on the subject whose focus is detected is executed (S121). This AF process is repeatedly executed until the loop time elapses (S123: N, S12).
1).

When the loop time has elapsed, the photometric switch S
Check the status of WS, check the status of release switch SWR if it is on, VDD if it is off
Return to loop processing (S125: Y, S141: N, S1
11). If the release switch SWR is on, the exposure process is executed, the wind process is executed, and the process returns to S111 (S141: Y, S143, S145, S111). In this winding process, the data LED 121 is caused to emit light to perform a data imprinting process.

If the photometric switch SWS is off, it is checked whether the power-hold flag is set. If not, the power-hold timer is started, the power-hold flag is set, and then the power-hold flag is set. The VDD loop process is repeated until the timer times out (S125, S12
7, S129, S131, S133: N, S111).
Then, when the power hold time has elapsed, the power hold flag is cleared and the process returns to the power down process (S
133: Y, S135, S103).

Regarding the wind processing of S145, FIG.
This will be described with reference to the flowchart shown in FIG. The wind processing is started when the exposure is completed, that is, when the traveling of the shutter rear curtain is completed. When the wind process is started, first, the 200-ms timer for over-end detection, which is the limit time for the output pulse change of the film encoder 123, is set (S201). The over-end detection 200 ms timer is a timer for executing the film wind error process because the film is not normally running unless the output pulse of the film encoder 123 changes for 200 ms. 200 for over-end detection
After setting the ms timer, the mechanical charge motor MM and the film wind motor WM are activated to enter the wind loop (S203, S205). Although not shown in detail, the film wind error process is, for example, a process in which the film wind motor WM is stopped and the mechanical charge motor MM is operated until the end of charging.

When the wind loop process is started, a 200 μS timer (light emission timer) for detecting the output pulse change time of the film encoder 123 is started (S211). The 200 μS timer detects the output pulse level of the film encoder 123 every 200 μS and controls the light emission / extinction of the data LED 121. When the 200 μS timer is started, it is checked whether the film wind motor WM is stopped and whether the mechanical charge motor MM is stopped (S213, S227). In this embodiment, normally, the mechanical charge motor MM is set to stop first. If both motors are stopped, charging and winding are completed, and the process returns (S213: Y, S22).
7: Y).

If both motors MM and WM are operating, the process proceeds to S229 (S213: N, S215: N, S).
229). In S229, it is checked whether or not the mechanical charge motor MM is in the primary brake, and if it is not in the primary brake, the process proceeds to the wind check process (S21).
5: N, S229: N). The primary brake is a short brake that short-circuits the input terminal of the mechanical charge motor MM and is applied a predetermined amount before the completion of mirror charging.

If the mechanical charge motor MM is in primary braking, the charge time over soft counter is incremented by 1 (S229: Y, S233). The charge time over soft counter is incremented by 1 every 200 μS during the primary braking. Then, it is checked whether or not the charge time has passed one second, and if not, it is checked whether or not the mirror down detection switch SWMRDN is turned on, and if not turned on, the process proceeds to the wind check process (S235: N, S237: N). If it is on, charging is complete, so the mechanical charge motor MM is braked and stopped, the film counter 1 is incremented by 1, and the value of the film counter is set to the EEPROM 125.
To the wind check process (S23)
7: Y, S239, S241, S243). It should be noted that when the charge time has passed 1 second, there is some abnormal state, so the mechanical charge motor MM is made free (S23
5: Y, S245), if film overend, proceed to overend processing (S247: Y), and if not film overend, return (S247 :).
N). The film over end is a state in which the end of the film is wound up.

Although the film wind motor WM is in the wind operation, when the mechanical charge motor MM stops,
The process proceeds from S215 to S217 (S215: Y, S21
7). In S217, the counter for over end detection is set to 1
Decrement, check if it is over end, and if it is not over end, execute film motor brake standby processing (details not shown) (S219:
N). At the time of over-end, the film wind motor WM is de-energized to be in a free state, the wind motor stop bit is set to 1 and the film over-end bit is set to 1 (S219: Y, S22).
1, S223). If the mechanical charge motor MM is stopped, the film end process is executed (S225:
Y), if the mechanical charge motor MM is not stopped,
Return to the wind loop to continue the above processing (S22)
5: N).

Next, the wind check process will be described with reference to FIGS. 6 and 7. The wind check process is a process of detecting a pulse change output from the film encoder 123 which is interlocked with the film running, imprinting data, and completing winding. In this wind check process, first, the film wind motor W
It is checked whether or not M is stopped. If it is already stopped, if 200 μS has elapsed, the data imprinting process is executed and the process returns (S301: Y, S33).
9: Y, S341).

If the film wind motor WM is not stopped, it is checked whether 200 mS has elapsed, 2
If 00 mS has elapsed, it means that there is something wrong with the film wind, so the power supply to the film wind motor WM is cut off to put it in a free state, the wind motor stop bit is set to 1, and the film over end bit is set to 1.
Is set (S303: Y, S305, S307).
If the mechanical charge motor MM is not stopped, the process returns to the wind process to complete the charging (S3
09: N), if not stopped, the process proceeds to the film end processing (S309: Y).

In the film end processing, the mechanical charge motor MM is de-energized to be in a free state, and the film over end is written in the EEPROM 125 (S311, S313). Then, it is checked whether or not it is an auto return, and if it is an auto return, the winding process is executed after waiting 200 mS and the process returns (S315:
Y, S317, S319). If it is not the auto return, the process directly returns (S315: N).

When it is determined in the process of S303 that 200 mS has not elapsed, the imprinting data setting process is executed (S303: N, S325). In the imprint data setting process, the number of changes in the output pulse of the film encoder 123 is counted, the output pulse change time is counted, the imprint data timing is calculated, and the imprint data is E
This is an imprint preparation process for reading from the EPROM 125 and setting it in the RAM.

When the imprinting data setting process is completed, it is checked whether it is the 47th edge of the output pulse of the film encoder 123. If it is not the 47th edge, the 200mS timer for overend detection is set, and then the process proceeds to S339. Proceed (S327: N, S329, S33
9). If it is the 47th edge, the winding of the film is completed, so the wind motor braking process for stopping the film wind motor WM is executed and then the process returns to the wind loop (S327: Y, S331). That is, in the present embodiment, one frame of film corresponds to the film encoder 1.
This corresponds to 47 changes in the output pulse of 23 times.

In S339, the 200 μS timer waits until the time is up (S339: N), and when the time is up, the data imprinting process is executed and the process returns to the wind loop (S339: Y, S341). The data imprinting process is a process of imprinting the data on the film based on the data set in the imprinting data setting process and the imprinting timing.

Details of the imprinting data setting process in S325 will be described with reference to FIG. The imprinting data setting process is a process of obtaining a light emitting interval of the data LED according to the traveling speed of the film and a preset imprinting start position of the imprinting data by measuring an interval of output pulse change of the film encoder. Is. The imprinted data includes a film counter, an exposure mode, a shutter speed Tv, an aperture value Av, and a photometric mode in that order.
This is one embodiment, and it goes without saying that the order of the imprinted data is not limited to this, and the imprinted data is not limited to this.

In this embodiment, the change of the output pulse of the film encoder from the 9th time to the 10th time (the time required from the rise to the fall) is counted in 200 μS unit, and the light emission interval of the data LED is set. The writing of the film count data is started at the set emission timing from the time when the output pulse change (falling edge) of the film encoder is detected. Similarly, 14
The 15th to 15th times, the 23rd to 24th times, the 31st to 32nd times, and the 39th to 40th time intervals are detected to set the light emission timing, and the 15th, 24th, and 32nd times are set.
Exposure mode data is set according to the light emission timings set immediately before from the time of detecting the change of the 40th time,
Writing of shutter speed Tv, aperture value Av, and photometric mode data is started.

When entering the imprinting data setting process, first,
It is checked whether or not there is a level change in the film encoder output (whether the output has risen or fallen) (S401). When there is a level change, the film pulse is counted up, and the counter for counting the level change interval is initialized (S40).
3 to 407) are executed. First, the film pulse edge number is incremented by 1, and the film pulse edge number is
Isn't it the count start reference pulse number, that is, 11,
It is checked whether it is 16, 25-30, 33, 41 ((S401: Y, S403, S405). If neither, the 200 μS loop counter is cleared and the process proceeds to S415 (S405: N, S407). , S
415), whichever is the case, the clearing process is skipped to continue the count and the process proceeds to S415 (S405: Y, S415).

When it is checked in S401 that there is no level change (S401: N), 20
Counting up the 0 μS loop counter, the number of film edges 9-10, 14-15, 23-24, 31-3
Process of calculating the imprinting timing from the value of the 200 μS loop counter between 2, 39 and 40 (S409 to S4)
Proceed to 13). In S409, the 200 μS loop counter is incremented by 1, and in S411, the film pulse edge number starts to be imprinted, the imprinting pulse number is 10, 15,
Check if any of 24-29, 32, 40. If neither is found, the imprinting (light emission) timing calculation is executed (S405: N, S407).
This calculation is 200 μS counted up in S403.
This is a process of obtaining the quotient obtained by dividing the count value of the loop counter by 14, that is, the light emission timing. In this embodiment,
In normal operation, to count 14 or more while the output pulse of the film encoder 123 is changed twice, its
Therefore, the quotient, that is, the emission timing is set to 1,
The number is set to 14 . The count value is 14 (280
When 0 μS) or more and 27 (5400 μS) or less,
Imming becomes 1. When the running speed of the film is slow, the count value becomes large, and the count value becomes 27 or more.
Then, the quotient, that is, the light emission timing becomes 2. That is
“Light emission timing” means the light emission interval, and
200 μS loop counter counts up for Ming 1
Light emission every 200 μS, which is the same as the emission time
The light emission timing 2 is 200 μS loop.
Every time the counter counts up twice, that is, when emitting light
The interval will be twice as long, and light will be emitted every 400 μS.
It Number of film pulse edges is 10, 15, 24 to 2
If either 9, 32, or 40, the process of S413 is skipped and the process proceeds to S415 (S411: Y, S41
5). By this skip processing, the light emission timing which is the quotient corresponding to the film encoder pulse change interval immediately before the data writing start reference is held.

Steps S415 to S433 are processes for waiting for the film pulse edge number to become any one of 10, 15, 24, 32, and 40, and to set the corresponding write data when it becomes any one. When the number of film pulse edges is not 10, 15, 24, 32, or 40, the process directly returns (S415: N, S41).
9: N, S423: N, S427: N, S431:
N).

When the number of film pulse edges reaches 10, the imprinting film count data corresponding to the value of the film counter is read from the film counter table data of the EEPROM, set in the RAM, and the process returns (S415: Y, S417). ). Similarly, when the number of film pulse edges reaches 15, the exposure mode data for imprinting corresponding to the exposure mode is read from the exposure mode table data and set (S419:
Y, S421), when the film pulse edge number becomes 24, the exposure shutter speed data corresponding to the set shutter speed Tv is read from the shutter speed table data and set in the RAM (S423: Y, S42).
5) When the film pulse edge count reaches 32, the aperture value data for imprinting corresponding to the set aperture value Av is read out from the aperture value table data and set (S4).
27: Y, S429), the film pulse edge number is 40
When, the photometric mode data for imprinting corresponding to the photometric mode is read out from the photometric mode table data and set (S431: Y, S433), and the process returns.

Regarding the data imprinting process of S341,
This will be described in more detail with reference to the flowchart shown in FIG. This data imprinting process is performed in S417 and S42.
This is a process of imprinting the imprint data set in S1, S425, S429, and S433 on the film by causing the data LED 121 to emit light based on the light emission interval set in S413.

When the process of imprinting data is started, it is first checked whether or not the flash is being emitted last time, and if the flash is being emitted last time, all the imprinting LEDs are turned off (S501:
Y, S503). That is, since the data imprinting process is started every 200 μS, the lighting time of the imprinting LED is 200 μS. If the light emission is not being performed last time, the extinguishing process is not necessary, and thus the process skips S503 and proceeds to S505 (S501: N, S505).

In S505, 2 counted in S409
A value obtained by adding (light emission timing-1) to the count value of the 00 μS loop counter is divided by the light emission timing (quotient). Then, it is checked whether the remainder of the division is 0, and when it is 0, the light emission process (S509 to S521).
(S507: Y, S509), if not 0, the light emission processing (S509 to S521) is skipped and the process returns (S507: N). In this light emission process, for example, when the quotient is 2, each time the count value increases from the count value 1 by 2 such as the count values 1, 3, ..., When the quotient is 3, the count values 1, 4, 7, ... Is a process of emitting light each time the count value increases by 3 from the count value 1.

When it is determined in S507 that the remainder is 0, the light emission counter is incremented by 1 to check whether the light emission end flag is set to 1 and
If is not set, the imprinting LED is caused to emit light based on the set table data (S507:
Y, S509, S511: N, S513). Then, the table data counter is incremented by 1 to check whether the emission of all characters has been completed, and if the emission of all characters has not been completed, the process returns (S515, S517: N). By this light emission process, the image for one column (row) is imprinted.
Then, after the passage of 200 μS, the data imprinting process is started again, the imprinting LED is turned off, and if the remainder is 0, the process directly returns, and when the remainder is 0, imprinting is performed based on the table data of the next count value. The process of causing the LED 121 to emit light and imprinting the data of the next column is repeated until the emission of all characters of the set table data is completed.

When the emission of all characters is completed, the process proceeds from S517 to S519, the emission completion flag is set to 1, the table data counter is cleared, the emission counter is cleared and the process returns (S517: Y, S519, S52).
1). When the data imprinting process starts next time, since the light emission end flag is set to 1, when the remainder is 0, the process returns from S511.

By the above processing, the film count value, the exposure mode, the shutter speed Tv, the aperture value Av, and the photometry mode, which are a block of block data, are printed at a constant dot interval according to the film speed for each block. . The appearance of the imprinted data is shown in FIGS. 10 (A), 10 (B) and 10 (C). In the figure, the squares in the horizontal direction correspond to the length of the film in which one eye moves within 200 μS. Note that FIG. 10 shows an excerpt of a part of the display.

In this embodiment, the imprinting information is stored as unit matrix data defined by the position of the light emitting elements in the direction of arrangement and the position of the film in the traveling direction, and a plurality of combinations are combined to form one cohesive matrix data as a whole. Is formed. In other words, each 7
Using dots as unit data, a plurality of unit data form one cohesive block data. In the figure, the data of the number of shots is displayed from the 10th edge, which means that 10 shots have been taken. The number of captured images “10” is formed by unit data of “1” and “0”. From the 15th edge, “Tv”, which means the shutter priority mode, is displayed as the exposure mode, and “v” extends over two unit data.

10A and 10B show the case of the light emission timing 1, and FIG. 10C shows the case of the light emission timing 2.
Shows the case. Further, FIGS. 9A and 9C show the case where the film traveling speed is constant, and FIG.
Is the light emission timing 1, but the film running speed is
Shows a case where changes in the time and the exposure mode of imprinting when imprinting the shooting count data.

At a normal film speed, it is set so as to be imprinted like the display of the number of shots in FIG. 10 (B). As the film traveling speed increases due to the change in the film feeding state or the battery supply voltage, the image is slightly laterally spread as shown in FIG. On the other hand, when the film running speed becomes slower, the font gradually becomes thinner, and the character spacing becomes narrower at the same ratio. Therefore, as described above, since one cohesive data is imprinted at regular intervals, it is displayed in a neat form.

When the speed becomes much slower than that in FIG. 10B, the font becomes thinner, but when the count of 200 μS pulses between encoder pulses becomes 28, the calculation result of S413 in FIG. Becomes 2,
As is executed in steps S505 and S507 of FIG. 9, the light emission of the imprinting LED is every other one at intervals of 200 μS. By this control, the font of each imprinted data becomes large as shown in FIG. 7C, and the display form becomes easier to see.

If the corresponding range of the film speed spreads faster than that of FIG. 10A, the font will be greatly spread laterally, but in this case as well, it is imprinted as a cohesive data at a constant ratio. Can be displayed . However , since the width of the film is limited, there is a method of controlling as follows. First, if the film running speed becomes faster as the font expands laterally beyond the film width limit,
It is recognized that the operation speed is high when the operation result in S413 of FIG. After that, each imprinting data
For the data, the data is changed so as to skip the dot line indicated by “*” in FIG. By this control, it is possible to control the imprinting within a predetermined fixed range, and the display form looks good. If the dots to be skipped are set at the overlapping positions in the horizontal direction, the display form is not affected so that the content can be displayed correctly.

As is apparent from these figures, according to the embodiment of the present invention, even if the running speed of the film changes, the width of characters and the like changes in units of one cohesive data block, but the cohesion does not change. It can be seen that the characters in a block with is of constant width. Moreover, in this embodiment,
Since one character is formed by a plurality of unit data and these unit data are one data block having a unit, the character is imprinted with a fixed proportion as a whole.

In the illustrated embodiment, since cohesive data is imprinted at consecutive timings from the same reference time,
For example, a plurality of 7 × 7 dot matrices are formed in a row × column (horizontal × vertical) group of characters, figures, etc. that cannot be formed by a 7 × 7 dot matrix. In this embodiment, 2
7 × 14 dots in total, or 7 × 5 in total
Since 35 dots can be projected as one cohesive data block, it is possible to keep the horizontal dot width of each character and figure in the data block constant for each data block and keep the overall width within a predetermined range. it can. Further, according to the embodiment of the present invention, not only a character but also a figure is formed by a plurality of unit data, and by forming these data blocks into one unit, it is possible to imprint at a constant dot interval. it can. In the present invention, the number of dots in one row may be 6 or less or 8 or more, the number of matrices in one matrix may not be the same, and the imprint position is
It may be within the photographing screen and is not limited to the illustrated embodiment.

[0059]

As is apparent from the above description, the present invention is
The information to be imprinted is collected for each cohesive information
Data, and the start of imprinting each cohesive information is defined as when the encoder interlocking with the running of the film outputs the detection signal for the predetermined number of times. The elapsed time is measured and the light emission interval for the light emitting means is set, and light is emitted based on the matrix data at the light emission timing from the reference time.
A copy write Muga to emit light means continuously information of one chunk to the film, when the elapsed time is shorter than the predetermined range
When the film is running faster,
Skip a part of the matrix data and
Since the stage is made to emit light , the running speed of the film is increased.
What is also running direction of the spacing of the information of one chunk is kept constant, it can be imprinted as a legible information.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a main circuit diagram of a single-lens reflex camera to which a data writing device of the present invention is applied.

FIG. 2 is a diagram showing a timing chart regarding exposure, film winding and data imprinting of the same eye reflex camera.

FIG. 3 is a diagram showing a flowchart regarding a main operation of the same-eye reflex camera.

FIG. 4 is a diagram showing a part of a flowchart relating to a wind process of the same-eye reflex camera.

FIG. 5 is a diagram showing a part of a flowchart relating to wind processing of the same-eye reflex camera.

FIG. 6 is a diagram showing a part of a flowchart regarding a wind motor check process of the same-eye reflex camera.

FIG. 7 is a diagram showing a part of a flowchart regarding a wind motor check process of the same-eye reflex camera.

FIG. 8 is a diagram showing a flowchart regarding imprint data setting processing of the same eye reflex camera.

FIG. 9 is a diagram showing a flowchart regarding a data imprinting process of the same eye reflex camera.

FIG. 10 is a diagram showing an example of data imprinted by the same eye reflex camera.

FIG. 11 is a cross-sectional view showing the main configuration of the same-eye reflex camera.

FIG. 12 is a cross-sectional view showing the periphery of a data imprinting device of the same eye reflex camera.

FIG. 13 is a plan view showing the periphery of a data imprinting device of the same eye reflex camera.

FIG. 14 is a diagram showing a state in which data is printed on a film by the same eye reflex camera.

[Explanation of symbols]

101 CPU 111 switch group 121 data LED 123 film encoder 125 EEPROM 278 film MM Mechanical charge motor WM wind motor

─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-7-319048 (JP, A) JP-A-8-313985 (JP, A) JP-A-6-308594 (JP, A) JP-A-6- 301099 (JP, A) JP 6-222449 (JP, A) JP 6-11763 (JP, A) JP 5-165090 (JP, A) JP 5-72621 (JP, A) JP-A-4-258942 (JP, A) JP-A-4-232937 (JP, A) JP-A-2-127632 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03B 17/24

Claims (6)

(57) [Claims] 1. A light emitting means provided with a plurality of light emitting members arranged in a direction orthogonal to the film running direction is repeatedly illuminated while the film is running, and predetermined data is imprinted in the film running direction. go a data imprinting device for a camera, every information that the information imprinted on the film of one of unity
The imprinting information setting means for setting as matrix data, the encoder for issuing a detection signal for each predetermined traveling amount in association with the traveling of the film, the counting means for measuring the output interval of the detection signal, and the encoder for predetermined operation. When the second detection signal is output
Wherein the at copy start criteria is information of each chunk, the
Counting means sets a light emission interval for repeatedly emitting light from the light emitting means based on the elapsed time required from the detection signal output immediately before the start of copying to the reference signal to the detection signal output at the reference time, It was set from the standard time
Emission control means for imprint the information cohesive set in the film was in light emission interval to emit the light emitting unit based on the matrix data by said information setting means
And the light emission control means is configured to measure the elapsed time measured by the counting means.
If the interval is shorter than the specified range, the matrix data
To cause a part of the light emitting means to emit light,
Data imprinting device for camera. 2. The data imprinting device for a camera according to claim 1, wherein the light emission control means is the counting hand.
If the elapsed time measured by the step is shorter than the specified range,
Overlap in the running direction of the film in the matrix data
Data imprinting device of the camera that skips the data
Place 3. Data imprinting of the camera according to claim 1.
In the device, the light emission control means is the counting means.
If the elapsed time measured by is longer than the specified range,
A camera data imprinting device that lengthens the distance. 4. Data imprinting of the camera according to claim 3.
In the device, the light emitting time of the light emitting means is constant.
The light emission control means is measured by the counting means.
When the elapsed time is within the predetermined range
When the same time is set and the elapsed time is longer than the specified range
Is to set the light emission interval to twice the light emission time.
Characteristic camera data imprinting device. 5. The data imprinting device for a camera according to claim 1, wherein the light emission control unit includes a plurality of matrix data stored in the storage unit.
Combining the information with a single coherent plural sets form a plurality of sets of information of these one unity, camera data, characterized in that the predetermined time the detection signal at the output of each different imprint said reference times Imprinting device. 6. The camera data imprinting device of any one of claims 1 to 5, wherein the imprinting information units defined by the alignment direction position and the traveling direction position of the film of the light emitting element The data copy of the camera is stored as matrix data, and the one piece of information includes a character formed by one unit matrix data and a character formed by a plurality of unit matrix data. Including device.