JPS6155103B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a camera data imprinting device for imprinting various photographic data onto the film surface of a camera.

For example, various devices have been put into practical use for optically imprinting the photographing date and the like on the film surface when taking photographs. In many conventional devices, the imprint data was manually set, or a clock or the like was directly irradiated and imprinted when photographed. The method of manually setting the photographed data (year, month, date, etc.) makes the device simpler, but it has the drawback that people sometimes forget to set the data and imprint the wrong data, and the method of imprinting the clock itself makes it easier to imprint the data. There are drawbacks such as the data being too small and difficult to read, and although devices incorporating electronic clocks have been proposed, the devices and displays are complex and costly.

The present invention uses a common electro-optical display means in which a plurality of types of data imprinting lights are selectively displayed, and by switching the imprinting optical path by an electromagnetic drive means, a plurality of data imprinting lights are displayed on the first and second regions of the film surface, respectively. The first imprint data and the second imprint data can be imprinted, and the number of display means and character segment groups can be reduced to reduce cost and space compared to the amount of imprint data. In addition, it is possible to automatically switch the imprinting optical path, and furthermore, it is an effective method that does not cause character flow in the imprinted data even after the first and second data imprinting. The present invention provides a data imprinting device for a camera.

The present invention will be explained in detail below with reference to the drawings. FIG. 1 is a diagram showing the configuration of an optical system of a data imprinting method, which is the premise of the present invention. In the figure, reference numeral 1 denotes a photoelectroluminescent element composed of a light emitting diode (LED) or the like, which emits and displays data in the form of letters and symbols.
2 is a prism that reflects the light from the light emitting element 1 in two directions, up and down, and has two mirror surfaces made of silver vapor deposition, etc., 3
4 is a lens for forming an image of the light emitting element 1 on the film surface 6; 4 is opened when data is imprinted;
The shutter blocks light from 1 except during exposure, and for example, an electromagnetic drive device 19 opens and closes the optical path to perform exposure for imprinting. 7 and 8 are reflecting mirrors. 7 is fixed, but 8 is movable from the outside of the camera to the position shown by the broken line in the figure by an operation member not shown. At the position shown by the solid line, the prism 2 and mirror 7 are used to guide the light. The emitted light from the light emitting element 1 is reflected and guided to the finder optical system. Furthermore, when the mirror 8 is moved to the position shown by the broken line, the light from the light emitting element 1 can be observed from outside the camera through the magnifying lens 9. A half mirror 11 is designed to superimpose the light from the mirror 8 on the object image formed by the finder objective lens 10 and observe it through the eyepiece lens 12. Note that the half mirror 11 can also be used as a bright frame in a finder optical system and a mirror of a double image rangefinder. By adopting the optical system as described above, this camera is designed to appropriately guide the data from the light emitting element 1 in three directions: the film surface, the inside of the viewfinder, and the outside of the camera. This also serves as a useful tool for photographing. In the example shown, a watch integrated circuit (IC) used in general wristwatches is used to reduce the cost of the camera, and the year is displayed using an optical mask instead of an electronic circuit. 13 is a disc of this mask, which is a dial with transparent numbers, and 14 is a ratchet gear disposed coaxially with the disc 13, which is rotatably supported on a shaft 33 implanted in the main body together with the disc 14. has been done. Reference numeral 15 designates an operating member for rotating the disc 13 from the outside, and by pushing against a spring 16 fixed at one end, the dial can be rotated and the characters of the year imprinted can be changed. Reference numeral 18 designates an indexing pawl that fits into a hole 14 provided in the ratchet 14 to regulate the position of the characters.

Reference numeral 17 denotes a light emitting member that emits light in synchronization with the LED, which irradiates the disc 13 and exposes a character image onto the film surface. Note that a mask (not shown) is provided on the front surface of the disk 13 to prevent light from coming around from areas other than the character area. It is also possible to include a color filter to match the color tone of the image from the dial with the image from the LED. Note that the characters on the year display disk 13 can also be displayed externally using another display disk that cooperates with the disk 13. In this way, the light source 17 for illuminating the disk can be used during data imprinting. The burden on the built-in battery can be reduced by only emitting light.

Figure 2 is a configuration diagram of the optical system according to the embodiment of the present invention, in which the year is displayed using an electric circuit in the same way as the month, day, and time, and the same parts as in Figure 1 are designated by the same symbols. There is. In the figure, reference numeral 1' denotes an LED display element similar to 1 in FIG. 1, which displays the year, month, day, etc. in a time-divisional manner by emitting light. Reference numeral 24 denotes a reflecting mirror, which is normally located at the position indicated by the dotted line and reflects the light from 1' in the direction of the reflecting mirror 7.
through the camera to the display section 9 and the viewfinder outside the camera. When data is imprinted, the mirror 24 is in the solid line position in the figure, and the light from the LED 1' is sent to the film surface 6 through the imaging lens 3 and the reflecting mirror 5. The mirror 24 is driven by an electromagnetic drive mechanism 21. Incidentally, if the reflecting mirror 24 is a double-sided reflecting mirror as will be described later and is rotated in the direction of the arrow to shield the surrounding area from light, it is possible to prevent unnecessary light from entering the film surface. The reflecting mirror 5 is formed to be slightly rotatable about a shaft 23 by an electromagnet 22, so that the image positions below the year and month on the film surface do not overlap. As a result, two pieces of data are imprinted on the film surface in a time-sharing manner.

It is better to make the dimensions of the photoelectroluminescent device 1 used in the embodiment shown in FIG. 2 as small as possible, and it is advantageous in terms of the aperture of the imaging lens 3 and the optical path dimensions to narrow the spacing between letters. However, in photoelectronic light emitting devices that use multi-segment LEDs, there are limits to the spacing between lead wires due to layout constraints, and although it is more convenient to form letters at equal intervals, it is difficult to imprint them. It is easier to read characters such as year, month, date, etc. if they are arranged with appropriate spacing between them. Therefore, in the embodiment of the present invention, characters such as month and date are arranged in groups of two digits each. It is desirable to display them separately.

In the display element of the present invention, a method is used in which equally spaced characters are optically divided into two groups and displayed, which is advantageous in manufacturing. Figure 4 is a diagram for explaining the above method, in which the LEDs 1 are arranged at equal intervals with the character spacing as narrow as possible, and a prism such as 29 is placed in front of it to deflect the optical path, thereby displaying the characters. This is a method of dividing into two groups. Also, as shown in Figure 3
Cylindrical lenses 27 and 28 are provided as imaging lenses placed in front of the LED 1 at right angles to each other, and the aspect ratio of the photoelectronic light emitting device is set to a value that is advantageous for manufacturing by using a method of changing the ratio of the height and width of displayed characters. It is also possible to display the displayed characters by changing the ratio appropriately. By combining the methods shown in FIGS. 3 and 4 above, it is possible to achieve dimensions on the element side that are advantageous in terms of manufacturing, and an arrangement on the display side that is easy to read.

Next, an electric circuit of a camera using the photographic data imprinting method according to the present invention will be explained. Fifth
The figure is a block diagram of an electronic timepiece circuit used in the data imprinting method of the present invention. In the figure, 102 is a crystal oscillator that oscillates at, for example, 32768 Hz.

101 is an oscillation circuit, 103 is a semi-fixed capacitor for fine adjustment of the oscillation frequency, and 104 is a capacitor. 105, 106 and 108 are frequency dividers consisting of flip-flop circuits, and 1 is applied to the output of 108.
Obtain a Hz pulse signal and input it to the clock counter.

Reference numeral 109 is a pulse generation circuit that generates and inputs a short-time pulse to the 0.5 second timer circuit 115 when a print command signal from the camera is input, and is constituted by a one-shot circuit. 110 is a set signal generating circuit which generates a short pulse when the set switch _Sw1 is turned on and inputs it to the set sequence control circuit 117, which is a one shot circuit. 111 is a read (read) circuit that outputs "1" while reed switch Sw ₂ is on, and 112 is a "year/hour" switching circuit that shows "year, month, day" or "hour, minute" on the display. , seconds" is generated by turning the switch _Sw3 on or off. 113 is a film sensitivity setting resistor, which is linked to the film sensitivity setting dial of the camera. 114 is an A/D conversion circuit for generating a pulse train whose duty ratio changes according to the setting information of the resistor 113, and 115 is a print signal output from the print signal generation circuit 109 for lighting the display for 0.5 seconds. A timer 116 is a logic control circuit for controlling a segment drive control circuit 129 and a digit drive control circuit 131, which will be described later, in response to signals from each of the circuits 111 to 115 and the set sequence control circuit 117. be. The set sequence control circuit 117 switches and controls the gate of the clock set circuit according to the number of pulses sent from the set signal generating circuit 110, and includes gates 119 and 12.
1, 123, 125 and 127 are clock set switching gates, 118, 120, 122, 124, 1
26 and 128 are seconds, minutes, hours, days, respectively.
Month and year counters both make as many steps as necessary for the clock. i.e. "seconds counter"
118 is sexagesimal, "minute counter" 120 is sexagesimal,
"Hour counter" 122 is 24 decimal, "day counter"
124 is 28 decimal to 31 decimal, "month counter" 126 is
Decimal, "year counter" 128 counts in decimal + decimal. Reference numeral 129 denotes a display LED segment drive control circuit, which lights the LED 130 with its output and controls each of the counters 118, 120, 12.
The data (contents) of 2, 124, 126 and 128 are displayed. 131 is a digit drive control circuit. In the camera of the present invention having the circuit configuration shown in the figure, no display is normally performed and only the counter is in operation. The time, date, etc. can be set and displayed on the display by external operation, and this display data can be read at any time through the external display or viewfinder as shown in Figures 1 and 2, and is linked to the shooting operation. This can then be imprinted onto the film surface. The data to be imprinted can be switched to ``Year, Month, Day'' or ``Month, Day, Hour, Minute'', and the amount of light is emitted in accordance with the film sensitivity so that the data imprinted has the proper exposure.

The main parts of the electric circuit of the photographic data imprinting method of the present invention will be explained in detail below. 6th
The figure is a detailed circuit diagram showing parts of the circuit such as print, set sequence, read, and brightness control according to film sensitivity information. Block A surrounded by a broken line in the figure is a timer that generates a print signal, and when a print command signal is input from the camera, it is connected between the display and the frequency divider.
Generate a 0.5 second print signal to the OR gate.
Block B is a set signal generating circuit which generates a constant time signal to the set sequence control circuit C when the set switch _Sw1 is turned on.
Block D is a read signal generation circuit, block E is a "year/hour" switching signal generation circuit, block F is an A/D conversion circuit for film sensitivity information, and the other parts are logic control circuits.

Figure 7 shows "year" or "hour, minute" after "month, day" according to the output of the segment control circuit in Figure 5.
The contents of the counter in segment drive control circuit 1
This is a data selection control circuit that sends data to 29. In the figure, 201 is a data selection circuit that selects the content of the first stage output at the first and second digits of each counter, and 202 is the content of the second stage output at the first and second digits of each counter. Similarly, 203 and 204 are data selection circuits for selecting the third stage of the first and second digits of each counter,
This is a data selection circuit that selects the contents of the fourth stage. 205 to 209 are "minutes", "hours", respectively
These are day, month, and year counters.

FIG. 8 is a circuit diagram showing the segment and digit control circuit, the reflection mirror rotation control circuit, the segment drive control circuit, the digit drive control circuit, and the display circuit.

In the figure, the segment and digit control circuit K includes a 6-bit counter 301 that receives the 128 Hz signal that is the FF8 output of the frequency divider, an OR gate 302 that resets the counter 301 when a print signal and a read signal are input, and a read circuit. A one-shot circuit 303 that resets the counter 301 when switch Sw ₂ is turned on, and a one-shot circuit 303 that resets the counter 301 when switch Sw ₂ is turned on and a read signal is input.
Ex outputs “1” (high level) to the segment drive control circuit with a delay while the
-OR gate 304, inverter 305, 30
6. Consists of AND gates 307 to 313, etc. A film sensitivity signal is added to the AND gate 307, and when a 0.5 second print signal is input, 0<t<1/8 seconds and 2/8 seconds<t according to the output of FF _e of the counter 301. Controls the lighting of display E only for <3/8 seconds. AND gate 30
8 is a "year/hour" changeover switch Sw ₃ which, when turned on, outputs a signal to light up the "year" content on the display E for 1/4 seconds < t < 1/2 seconds after receiving the print signal.
The AND gate 309, contrary to the AND gate 308, outputs a control signal that causes the display E to light up the contents of "hours and minutes" when Sw ₃ is off. AND gate 3
10 outputs a control signal that lights up the contents of "month, day" and "year" on display E at a cycle of 2 Hz when a read signal is input while Sw ₃ is ON.

The AND gate 311, contrary to the AND gate 310, outputs a control signal that causes the contents of "month, day" and "hour, minute" to light up on the display E at a cycle of 2 Hz when Sw ₃ is off. When the set switch _Sw1 is turned on and the set signal is input, the AND gate 312
The lighting of the display E is controlled according to the outputs of the counter 301 and the set sequence circuit. 314,3
15 and 316 are OR gates, and 314 is the EX
-The output of OR304, the output of AND gate 307, and the set signal are input, and each signal is “1”.
''', it outputs "1", inputs it to the segment drive control circuit, and controls the lighting of L ₅ and L ₆ of the display E according to the output of the data selection control circuit. When the outputs of 310 and 312 are input and the content of "year" is displayed on the display E, it becomes "1". OR gate 316 is
The outputs of AND gates 309, 311, and 313 are input, and become "1" when displaying "hours and minutes" on display E. 317 is an inverter, 318 is
The output from the EX-OR gate is input to AND gates 312 and 313. Note that 319 is an OR gate for displaying _L1 and _L2 of the display E at 2Hz when the second is set.

Next, block L is a driving control circuit for a reflecting mirror, which controls the rotation of the mirror in order to transfer the contents of ``year'' or ``hours and minutes'' onto the film surface at different positions. Block L is a reflective mirror drive circuit, and 320 is an EX-OR gate that generates a signal for rotating the mirror for 1/8 seconds<t<3/8 seconds after the print signal is input. 321 is
The output of the 0.5 second timer and the output signal of the EX-OR gate 320 are input to the AND gate. An inverter 322 supplies the amplified current to the magnet Mg when the AND gate 321 is "1" to rotate the mirror. Block M is a segment drive control circuit that lights up the 7-segment LED of display E when displaying the "clock contents"; 325 is a 7-segment drive control circuit; 326 is a segment drive control circuit;
is an inverter to which the output of the OR gate 316 of the segment and digit control circuit K is input and drives the lamps (LEDs) _L5 and _L6 of the display E. Block N is a digit drive control circuit and the counter 3 of the segment and digit control circuit K.
FFa and FFb in 01, OR gate 315,3
One of the seven segment LEDs _L1 to _L4 of the display E is selected according to the output signal of the 16 output signals and the output signal of the binary-to-decimal converter of the set sequence control circuit. In the circuit N, 330 and 331 are binary-to-decimal converters that receive the outputs of FFa and FFb of the counter 301 and the output signals of OR gates 315 and 316, 332 and 333 are AND gates, and 332 is a set sequence control. The ``month'', ``hour'' and ``second'' outputs of the circuit are inputted, and 333 is inputted with the ``day'', ``year'' and ``minute'' outputs of the set sequence control circuit. 3
34, 336, 338 and 340 are OR gates, 335, 337, 339 and 341 are
AND gates, 342, 343 are EX-OR gates, 344 are OR gates, Tr ₁ to _{Tr 4} are driving transistors, and OR gates 334, 336, 3
When 38 and 340 are "0", power is supplied to the LED of the display E. R is the base protection resistance of each transistor.

Next, the operation of the circuit shown in FIGS. 6 to 8 will be explained. First, for normal clock control, use the reed switch.
When Sw ₂ is off, the counter 301 is the frequency divider
It operates constantly by inputting 128Hz from FF ₈ from terminal h, but the segment drive control circuit 325
Since the BI input is "0", the display E is not lit. Next, when the reed switch _Sw2 is turned on, the output of the AND gate 232 in the logic control circuit D shown in FIG. Occur. When the reset signal from the one-shot circuit 303 is stopped, the EX-OR gate 304 outputs "1", so BI and BI/ of the segment drive control circuit 325
The RBI input becomes “1” and the counter 301
According to the outputs of FFa and FFb and OR gates 315 and 316, the digits on display E and the data selection control circuit shown in FIG _.
After the read signal is generated by turning on, 0<t<
The contents of "month" and "day" are displayed on display E for 1/2 second. For the next 1/2 second < t < 1 second, FFg on the counter 301 becomes "1", and when the "year/hour" changeover switch Sw ₃ is on, the OR gate 315 becomes "1", and L ₃ on the display E and The contents of "Year" are displayed in L ₄ . Furthermore, when a read signal is input,
Since the OR gate 344 is "1" and the "month, day, year, hour, minute" signals from the set sequence control circuit are both "1", the outputs of the EX-OR gates 342 and 343 are both "0". ”, the inputs of OR gates 334, 336, 338, and 340 change from “1” to “0”, and transistors Tr ₁ to _{Tr 4}
A signal is sent to AND gates 335, 337,
According to the outputs of 339 and 341, one of the transistors Tr ₁ to _{Tr 4} is driven and the display device E's L ₁ to Tr 4 are driven.
L ₄ lights up. In addition, "year/hour" changeover switch Sw ₃
When is off, L ₅ lights up at the same time as L ₂ lights up,
When L ₃ lights up, L ₆ lights up to clearly indicate that it is displaying "hours and minutes". Next, when a print command signal is generated from the camera, a reset signal is transmitted from the one shot circuit of the 0.5 second timer A to the counter 301 via the terminal iOR gate 302, and the counter 301 is reset.

Next, the print signal for 0.5 seconds passes through the logic control circuit, and the same signal as the read signal is input from terminal g to the OR gate 344, and the print signal containing film sensitivity information is input to the AND gate in the ASA information A/D conversion circuit F. 259 and is transmitted to AND gate 307 through terminal j. For 0<t<1/4 seconds after this print signal is transmitted, FFa, FFb of the counter 301 and OR gate 3
The outputs of 15 and 316 are input to segment drive control circuits 330 and 331 to operate them, and the contents of "month and day" from terminal n are input to AND gate 33.
2,333 EX-OR gates 342, 343 are input to the AND and OR circuit of the segment drive control circuit, so the display E displays the contents of "month/day" at 1/8 second from the generation of the print signal. <t
For <1/4 second, the output of AND gate 307 is "0", which is input to the BI and BI/RBI terminals of circuit 325 via OR gate 314, and 32
Since the operation of 5 is stopped, the display on the display E is also stopped. Also, if 1/8 seconds < t < 3/8 seconds, counter 3
Outputs from FFe and FFf of 01 are EX-OR gate 3
20, and its output is AND gate 321,
The signal is transmitted to the magnet Mg via the inverter 322, which activates the magnet Mg to change the display position on the screen. During this period, for 1/4 seconds < t < 1/2 seconds from the generation of the print signal, the
The AND gate 303 operates according to the state of the "hour" changeover switch _Sw3 , and the display E displays the contents of "year" or "hours and minutes" in the same way as above. , 3/8 seconds<t<1/2 seconds, the operation of the segment drive control circuit 325 is stopped, and the display of the "year" or "hour/minute" is thereby stopped. In this display, when displaying hours and minutes, the inverter 326 operates so that the lamps L ₅ and L ₆ of display E are switched to 7-segment LEDs.
It lights up in synchronization with the lighting of L ₂ and L ₃ .

Further, the operation of the mirror rotation drive circuit L is t>3/
The display will be canceled when 8 seconds have passed, and at the same time, the display of "year" or "hours and minutes" will also be canceled. Then t=0.5
When this happens, the print signal from the 0.5 timer circuit is turned off, so mirror drive and display are no longer performed.

Next, the setting operation of the clock displayed on the display E will be explained. When the set switch Sw ₁ in Fig. 6 is turned on to set the
A set signal of "1" from the binary-decimal conversion circuit 213 in the sequence control circuit C is passed through the terminal m to the AND gates 312, 313 and
It is input to OR gate 314. Furthermore, the “0” signal of the “second” set is sent to the digit drive control circuit.
It is input to AND gate 332 and OR gate 319 of the segment and digit control circuit. As a result, the output of AND gate 332 is "0", the output of AND gate 333 is "1", and the output of OR gate 334 is "0", so EX-OR
Gate 342 becomes “0” and EX-OR gate 3
43 becomes "1". Therefore, a display inhibit signal is applied to L ₃ and L ₄ of display E through OR gates 338 and 340. On the other hand, AND gate 312,
313, the signal "1" for the "year" set is inputted to the AND gate 312 via an inverter 317, and the signal "1" for the "hour" set and "minute" set is input to the EX-OR gate 318. through
Since "0" is input to the AND gate 313, signals indicating "month" and "day" are given to the segment and digit drive circuits. Furthermore, since the display prohibition signal is given to the OR gates 338 and 340 from the EX-OR gate 343, the display E
Only display signals are given to _L1 and _L2 . However, the set signal is input to the BI/RBI input of the segment drive control circuit 325, and the lamp test input (LT)
Since a "second" set signal of "0" is input to the , all segments of L ₁ and L ₂ of the display E are lit and "〓〓" is displayed. Note that a 1 Hz pulse train is input to the LT input of the segment drive control circuit 325 through the OR gate 319, and _L1 and _L2 blink at a 1 Hz cycle to indicate the "second" set. Next, check the correct clock “0”.
When the reed switch Sw ₂ is turned on in time with the "second", the reset signal generation circuits 235 to 238 of the logic control circuit shown in FIG. Move on to control operation. When the "hour" is set, the "hour" set signal "0" is generated from the set signal generating circuit B of the set sequence control circuit shown in FIG.
As a result, EX-OR 318 receives the "minute" set signal of "1" and the "hour" set signal of "0" and becomes "1". The segment and digit drive circuits are therefore provided with signals indicating hours and minutes. However, due to the "hour" set signal
Since the AND gate 332 becomes "0" and the AND gate 333 becomes "1", L ₁ , L ₂ and L ₅ are displayed as in the case of the "seconds" setting.
L ₃ , L ₄ and L ₆ are in a display prohibited state. As a result, even if the contents of "hour" and "minute" are input from the data selection control circuit shown in _FIG .
Only "hour" is displayed on L ₂ , and L ₅
will light up at the same time to indicate that the hour is set.

The "hour counter" is set by the reed switch.
If you keep Sw ₂ on, the set switching circuit will operate and the "hour counter" will advance at 2Hz, and if you turn off switch Sw ₂ when the display reaches the predetermined value, the "hour counter" will advance at 2Hz. will be stopped. If the set switch _Sw1 is turned on here, the control shifts to "minute" set control. When the "minute" set control is entered, the "minute" set signal "0" is transmitted from the set sequence control circuit of FIG. 6 to the segment and digit control circuit and digit drive control circuit of FIG. 8 from the terminal n. Therefore, EX-OR gate 318
is "1", AND gate 332 is "1", and AND gate 333 is "0".

As a result, L ₁ , L ₂ and L ₅ of display E are prohibited from displaying, and L ₃ , L ₄
and L ₆ becomes the display state. Therefore, the contents of the "minute counter" are displayed on _L3 and _L4 of the display E, and _L6 lights up to indicate that the "minute" setting is in progress. Next, when set switch Sw ₁ is turned on, the control shifts to "Moon" set control. In this case as well, the "month" set signal "0" is transmitted from the set sequence control circuit to the segment and digit control circuit and the digit drive control circuit, as in the case of the above-mentioned "hour" and "minute" set control. As a result, the AND gates 312 and 313 become "0", and the contents of the "month" and "day" counters are input from the segment and digit control circuit to the display E, and L ₁ , L ₂ , L ₃ , L ₄ to enter the control state to display these. But AND gate 33
2 is "0" because the "0" of the "month" set is input, and the AND gate 333 is "1", so the EX-OR gate 342 is "0", EX-OR
The gate 343 becomes "1", and the L ₁ of the display E,
_L2 displays the contents of the "month counter" in accordance with the output of the segment drive control circuit 325, and display of _L3 and _L4 is prohibited, so that the contents of the "day counter" are not displayed. Further, since the AND gate 313 is "0", the inverter 326 becomes "1", and even though the transistor Tr ₂ is turned on and the first digit of "month" is displayed in L ₂ , L ₅ does not light up. Next, turn on the set switch Sw ₁ to shift to "day" set control. In this case, contrary to the "month" set control,
Since the AND gate 332 becomes "1" and the AND gate 333 becomes "0", the EX-OR gate 342 becomes "1" and the EX-OR gate 343 becomes "0", and L ₁ and L ₂ of the display E are Display is prohibited, and the contents of the "day counter" are displayed in L ₃ and L ₄ . Next, when set switch Sw ₁ is turned on, the state shifts to the "Year" set state, and the "Year" set signal is set to "0" to the segment, digit control circuit, and digit drive circuit.
is input from the set sequence control circuit of FIG.
17 becomes "1", AND gate 312 becomes "1", and AND gate 313 becomes "0". This controls the display E to display the contents of the "year counter" of the digit drive control circuit and data selection control circuit. On the other hand, the AND gate 332 is "1" and the AND gate 333 is "0", so the EX-OR gate 342 is "1", EX-OR
The gate 343 becomes "0", and the L ₁ of the display E,
L ₂ is prohibited from displaying, and L ₃ and L ₄ are displayed.
As a result, the contents of the "year counter" are displayed by L ₃ and L ₄ according to the output of the data selection control circuit. Press and hold the read switch Sw ₂ until the setting of this "year counter" is completed, then press the switch Sw _2.
When the set switch Sw1 is turned off and the set switch _Sw1 is then turned on again, the display on the display E disappears and the device returns to the normal clock control state. Note that _L5 of display E lights up when _L2 is displayed while the hour is set.
It indicates that the ``hour counter'' is being set, and if L <sub>6</sub> lights up while L <sub>3</sub> is lit, it also indicates that the ``minute counter'' is being set.

FIG. 9 is a curve diagram showing an example of a timing chart when reading a clock output using the photographic data imprinting method according to the present invention, and FIG. 10 is a curve diagram showing an example of a timing chart when imprinting the same data.

FIG. 11 is a diagram showing an example of the data imprinting screen shown in FIG. 1, in which the "year, month, and day" of the photographic data are imprinted in one line as shown in the figure. 1st
Figures 2 and 13 are diagrams showing examples of the data imprinting screen according to the present invention shown in Figure 2. In Figure 12, the "year" and "month/day" are imprinted in two lines, In Figure 13, the ``hours, minutes'' and ``months and days'' are printed in two separate lines. FIG. 14 is an external view of a camera using the data imprinting method of the present invention. In the figure, 32 is the operating section for the "year/hour" switch Sw ₃ , 9 is the external display section for imprinting data, and 30 is the imprinting section. A data set button 31 operates the data set switch Sw ₁ for the data set switch Sw 1 , and a data read button 31 operates the read switch Sw ₂ .

As explained above, the present invention has been made in order to imprint data with a number of characters exceeding the number of character segment groups of an electro-optical display means.
First, select the first imprint data and guide the first data imprint light to the first area of the film surface.
After stopping this first data imprinting light, the electromagnetic driving means is operated to move the optical path switching optical member, and from now on, the second data imprinting light based on the selected second imprinting data is transferred to the film. Since the data is guided to the second area of the surface, it is possible to automatically imprint data of a number of characters exceeding the number of character segment groups into two areas. Further, in the present invention, when the imprinting optical path is switched by the electromagnetic driving means, the generation of the data imprinting light is stopped by the timer circuit until the operating time of the electromagnetic driving means is reached, so that the imprinted characters are It is possible to provide a camera data imprinting device that can reliably prevent data leakage.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of an optical system in the data imprinting method that is the premise of the present invention, Figure 2 is a configuration diagram of an optical system in an embodiment of the present invention, and Figures 3 and 4 are data imprinting diagrams of the present invention. FIG. 5 is a block diagram of an electronic clock circuit in an embodiment of the electric circuit of a camera using the data imprinting method of the present invention; FIG.
7 and 8 are detailed circuit connection diagrams of various parts of the electric circuit shown in FIG. 5, FIG. 9 is a timing chart when clock output is read using the data imprinting method of the present invention, and FIG. 10 is a copy of the same data. Timing chart at the time of imprinting, FIG. 11 is a diagram showing an example of a data imprinting screen by the device shown in FIG. 1, FIG. 12,
FIG. 13 is a diagram showing an example of a data imprinting screen by the apparatus shown in FIG. 2, and FIG. 14 is an external view of a camera equipped with the photographed data imprinting apparatus of the present invention.

Claims (1)

[Scope of Claims] 1. An electro-optical display means having a plurality of character segment groups and forming a data imprinting light, and a plurality of types of imprint data being selectively displayed on the plurality of character segment groups of the display means. a display control circuit; an imprinting optical system that guides the data imprinting light formed by the electro-optical display means onto the film surface; an optical path switching optical member that changes the guidance of the data imprinting light in the common character segment group area of the electro-optical display means between the first area and the second area; and an electromagnetic drive that moves the optical path switching optical member. means, and in response to a data imprinting start signal, first causes the display control circuit to select the first imprinting data, thereby causing the electro-optical display means to select the first imprinting data.
After forming the first data imprinting light and stopping the first data imprinting light, the electromagnetic driving means is operated to move the optical path switching optical member, and from the start of operation of the electromagnetic driving means, the timer circuit is activated. after a predetermined period of time has elapsed, an imprinting control circuit causes the electro-optical display means to form a second data imprinting light based on the second imprinting data selected by the display control circuit; A camera data imprinting device comprising: