JPS6058456B2 - Data imprinting device in camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data imprinting device that imprints data using an automatic charging device start signal in a camera.

The present invention is particularly directed to a camera that is detachable from an automatic charging device to the camera body, and data is imprinted by a signal that starts the automatic charging device after exposure. In particular, data imprinting allows data to be imprinted without a separate data imprinting operation, and data imprinting is also possible even when an automatic charging device is not attached to the camera body. It is intended to be provided to the device.

The present invention will be explained below with reference to Examples. One embodiment is shown in FIGS. 1 to 4. 1 is the camera body, 4 is an automatic charging device, and 11 is a data copy/imprint device.

There is a screw hole on the bottom of the camera body 1 for attaching it to the Ξ leg, and the automatic charging device and data imprinting device are installed using screw 5.
Alternatively, it is adapted to be screwed into the Ξ leg mounting screw hole on the bottom surface of the camera body by the screw 12. When only automatic charging is desired, the automatic charging device 4 is attached to the bottom surface of the camera body. When only data imprinting is desired, only the data imprinting device 11 is attached to the bottom surface of the camera body. When performing both automatic charging and data imprinting, the data imprinting device 11 is attached to the bottom surface of the camera body, and the automatic charging device 4 is attached to the bottom surface thereof. For this reason, the lower surface of the data imprinting device 11 is also provided with Ξ leg mounting screw holes similar to those on the lower surface of the camera body. A similar screw hole is provided on the bottom of the automatic charging device, so it can be attached to a tripod in any case. Reference numerals 8 and 15 denote electrical connection pieces that come into contact with corresponding connection pieces (FIG. 4, 3) on the bottom surface of the camera body.

A connection piece (indicated by 34 in FIG. 4) similar to the bottom surface of the camera body is provided on the bottom surface of the data imprinting device 11, and when the automatic charging device 4 is attached to the bottom surface of the data imprinting device 11, the connection piece It is designed to be in contact with 8. A starting signal issued from the camera body 1 is sent to the automatic charging device, data imprinting device 11, etc. through these connection pieces. Reference numerals 6 and 13 denote transmission joints provided in the automatic charging device 4 and the data imprinting device 11, which engage with the transmission joint (shown as 2 in FIG. 4) at the lower end of the film winding shaft in the camera body 1. ing. In the case of automatic charging, the motor in the automatic charging device 4 rotates the film 6, which engages with the joint 2 on the camera body side, so that the film winding shaft is rotated. When performing data imprinting and automatic charging, a data imprinting device is interposed between the camera body 1 and the automatic charging device 4, but the rotation of the joint 6 of the automatic charging device 4 is controlled by the data imprinting device 1.
The joint 13 on the upper surface of 11 is fixed to both the upper and lower ends of the shaft, and the joint 13 rotates. The film is wound through a joint 2 of the camera body which is engaged with this joint. Reference numeral 16 indicates data for imprinting, such as date, hour, minute, and second, which is visually displayed on a liquid crystal display. Data imprinting device 11
The image passes through an opening 38 formed at the rear end of the top surface of the camera body, passes through an optical system inside the back cover of the camera body, and is projected onto the back of the film.

If you incorporate an LCD clock as the data device for imprinting, once you set the date and time, the time and date will change automatically until the battery runs out, so you won't have to worry about setting the date and time each time you take a photo. There is no need to worry about the mistake of copying incorrectly displayed data due to forgetting settings. Figure 2 a is data display 1
The optical path from 6 to the back side of the film is shown.

In this figure, the back cover of the camera is shown and the main body is omitted.
The data imprinting device 11 is attached to the camera body. 17 is a shutter, and 18 is a shutter control circuit, and the shutter 17 is operated by a start signal sent from the camera body through the connection piece 15.

The data display 16 is illuminated from the left by external light, and the light that passes through the data display 16 passes through the shutter 17, is reflected by the mirrors 19 and 20, and enters the camera back cover 21 upward through the opening 38. . There are a projection lens 22 and a mirror 23 inside the back cover 21, and the image of the display 16 is focused on the back surface of the film 25. 24 is a film holder, and 24a is a window bored at a position where a data image is formed.

FIG. 3 shows another configuration of the data projection system. Mirror 19 is located within the data imprinting device. Another mirror 2' is provided on the back of the film holder 24 on the back cover of the camera. There is an opening on the bottom surface of the camera body 1 at a position opposite to the opening 38 through which the data projection light of the data imprinting device 11 passes. Since light enters the opening and exposes the film, it is necessary to cover the opening. An example of a structure for this purpose is shown in FIG. 2b. 38'' is an opening opposite to the opening 38 on the data imprinting device 11 side at the lower edge of the camera back cover.

A plate 35, which is biased in the direction of arrow a by a spring 35'' above this opening, is a plate that closes the opening.This plate is sandwiched from above and below by plates 42, 42''.
42'' is fixed to the camera back cover, and only the plate 35 is movable.The plates 42, 42'' have an opening just above the opening 38'', and the plate 35 is normally attached by a spring 35''. The film is energized and extends over this aperture to prevent light from reaching the back side of the film. The plate 35 has a tongue piece 42 hanging downward.
a, and the lower end of this tongue piece is bent obliquely. When the data imprinting device 11 is attached to the camera body, the protrusion 36 near the opening 38 pushes the lower end slope of the tongue piece 42a, and the plate 3
5 in the direction of arrow b against the spring 35'', and the plate 35
are retracted from the openings in plates 42, 42'' to allow data projection light to reach the rear surface of the film. FIG. 4 shows the interior of the arrangement shown in FIG.

This figure shows a state in which a data imprinting device 11 and an automatic charging device 4 are attached to a camera body 1. 28 is a film winding lever, and 10 is a winding stop lever.

In the data imprinting device 11, 14 is a control section including a battery, a data display circuit, a control circuit 18 (described above, shown in FIG. 2) for operating the shutter 17, and the like. The signal emitted when the camera body completes the exposure and the SLR mirror, aperture device, etc. have returned is the starting signal for the connecting pieces 3 and 1.
5 to the control unit 14, which activates the control circuit 18 of the shutter 17 to open the shutter 17 and transfer the data onto the film, but at this time, no start signal is transmitted from the control unit 14 to the automatic charging device 4. Further, since the winding stop lever 26 in the data imprinting device 11 is engaged with the force 27, the film will not be wound up before imprinting is completed. When the shutter 17 closes, an electromagnet in the control section 14 causes the stop lever 26 in the control section 11 to be pulled out from the arm 27. This winding stop lever may seem unnecessary since there is also a winding stop lever 10 on the camera body side, but if you wind the film manually while data is being imprinted, This is necessary in order to prevent the film from being advanced until the data imprinting shutter 17 is closed, since the above data recording will be lost. Note that the lever 10 is released from the locking cam by a signal issued when the single-lens reflex mirror, aperture device, etc. have returned after exposure. When the data imprinting shutter 17 closes, a signal is output from the control unit 14, which is sent as a starting signal to the automatic charging device 4 via the connecting pieces 34 and 8, and is applied to the control circuit 7 in the device, and is applied to the control circuit 7. 7 starts the film winding motor 9, and the rotation of the motor 9 is transmitted to the film winding shaft of the camera body through the joints 6, 33 and 13, 2, winding the film and charging the shutter, aperture, etc. will be held. Also, this rotation is performed by the data imprinting device 1.
1, coaxial gears 29 to 30, 3 with joints 13, 33
The rotation of 31 causes the charging member 32 of the data imprinting shutter 17 to slide to the right, thereby charging the shutter 17. Button 3 protruding from the front of the data imprinting device 11 in FIG.
7 is a member for manually charging the shutter 17. When the data imprinting device 11 of the camera body 1 is attached, the data imprinting device 11 charges the shutter 17 even though the film has already been wound and charged on the camera body 1 side. Although there may be cases where the camera is not loaded, data cannot be imprinted even if the release operation is performed in such a case. When the button 37 is pressed at this time, the charging member 32 is driven in conjunction with this pressing, and only the shutter 17 can be charged independently of the charging on the camera body 1 side. With the configuration shown in Fig. 4, there is no problem with data imprinting even when the automatic charging device 4 is not installed.
The rotation is transmitted to 3, and the charging member 32 is caused to slide. When the automatic charging device is directly attached to the camera body, a signal generated when the return of the single-lens reflex mirror, aperture device, etc. is completed is directly transmitted from the connecting piece 3 to the connecting piece 8, and the motor 9 is started by this signal. 5th to 7th
The figures show other embodiments.

In this embodiment, the power source section of the automatic charging device 4 is replaceable in a cassette type, and the data imprinting device 11 is installed in the automatic charging device in exchange for this cassette type power source. These attachments and detachments are of course done using the same structure as the tripod mounting screw. Therefore, it is also possible to mount only the data imprinting device 11 on the camera body using the tripod mounting screw of the camera body. In this embodiment as well, parts corresponding to those in the embodiment shown in FIGS. 1 to 4 are given the same reference numerals. 4 in Figure 7
A is a cassette type power supply. Since the data imprinting device 11 is installed at this power source, the power inside the data imprinting device is also used as the power source for the automatic charging device. In addition, in this embodiment, there are two liquid crystal displays (16" for visual viewing and 16" for imprinting on film), and a flash bulb 3 is used as the light source for data imprinting without using external light.
9 is used. The imprint display is placed directly under the camera back cover. The flash bulb is turned on when the shutter/first rear curtain release signal emitted from the camera body serves as a starting signal, but since the amount of light emitted is fixed, the shutter 17 in the previous example is not necessary, and the shutter inside the camera body Since the stop lever (indicated by 10 in Figure 4) is pulled out when the single-lens reflex mirror and aperture device return after exposure is completed, there is no risk of the film being advanced before data is imprinted. The wind stop lever 26 in the data imprinting device is also unnecessary, and the joints 13, 33, etc. that connect the film winding shaft of the camera body and the drive shaft of the automatic charging device are also unnecessary, resulting in a simple and compact structure. As shown in FIGS. 5 and 6, the control circuit 1 in the data imprinting device 11
4. The flash bulb 39 and the data imprinting display 16'' are housed in a case 41, and this case is used as the data imprinting device 1.
1, and can be slid up and down relative to the device. FIG. 5 shows a case where automatic charging is not performed, and the data imprinting device 11 is directly attached to the bottom surface of the camera body. Figure 6 shows a case where the automatic charging device 4 is attached to the camera body and the data imprinting device 11 is attached to this device.Since 11 is located below by the thickness of the automatic charging device 4, the part 41 is placed upward. Slide the camera back cover 2
1. Bring it into contact with the bottom surface of 1. Most of the data imprinting device 11 is a battery, and a visual display 16' is provided on the front surface of the data imprinting device 11, and the main functional parts for data imprinting are housed in the interior 41. To send a display control signal from 41 to 1,
Since 41 can slide relative to 11, 16'' can be connected to the control circuit 14 inside 41 in either the upper or lower position.
41 has two sets of terminals 41a and 41b coming out from 14, and either one can come into contact with the lead wire coming from 16''.

In the automatic charging device 4 shown in FIG. 7, 43 is a delay circuit, and since the signal sent from the camera through the connection piece 8 is a shutter trailing curtain release signal, film winding etc. are performed after the return of the single-lens reflex mirror, etc. is completed. This delays the starting of the motor 9. Further, the switch S1 is a manual switch and is opened when automatic charging is not activated. Also, in the data imprinting device 11, the data imprinting device 11 is used to record data. Chi S2
, S3 are also used to switch between connection and disconnection between the displays 16'', 16'' and the control circuit 14 using manual switches. In the embodiments shown in FIGS. 8 and 9, the data imprinting device is on the back cover 2 of the camera body.
It is installed inside 1 and is removable. Only an automatic charging device 4 is possible.

The display is a 16" visible display on the back of the camera back and a 16" imprint display located close to the back of the film 25.
The light is illuminated with a flash bulb 39. 16'' is close to the film 25, so no focusing/imaging lens is required.

When the automatic charging device 4 is not installed, the start signal issued from the camera body 1 is generated by pulling out the connector 42 housed in the recess 43 of the camera body 1 and connecting it to the connection piece 3 on the bottom of the camera body 1. , is sent to the control circuit 14.
As the starting signal, a return completion signal of a single-lens reflex mirror or the like is used. When the automatic charging device 4 is attached, a starting signal is sent to the automatic charging device by connecting the connecting piece 3 on the camera body and the connecting piece 8 on the automatic charging device 4 side, and the connection is made via the automatic charging device 4. The data is transmitted to the data imprint control circuit 14 by connecting the pieces 45 and 46. In this case, once the mirror, etc. has returned, the data can be imprinted and the film can be rolled.
However, due to a delay in the movement of the mechanical elements, the data imprint flash bulb 39
Since data imprinting is completed instantaneously, no special delay device is required. The embodiment shown in FIGS. 10 and 11 is an embodiment in which the data imprinting device is provided next to the viewfinder section of the camera, and the structure for linking with the automatic charging device is the same as the embodiment shown in FIGS. 8 and 9.

That is, at the bottom of the camera body 1, there is a first connection piece for transmitting an automatic charge start signal to the automatic charge device, and a second connection piece for transmitting a signal from the automatic charge device to the data imprint control circuit of the camera body 1. is provided. Further, in order to transmit the starting signal to the data imprinting control circuit when the automatic charging device is not used, a connector is provided which is housed within the camera body 1 and which is pulled out and connected to the first connection piece. There is. LCD display 1
6 is provided on the front of the camera and illuminated with external light, display 1
The light transmitted through mirror 6 is reflected by mirrors 19'' and 23'', and an image is formed on film 25 from the front by lens 22 inserted between the mirrors 19'' and 23''. Reference numeral 17 denotes a data imprinting shutter that is installed to block this optical path and is opened by an automatic charging start signal transmitted from the camera body 1 via the automatic charging device.

A liquid crystal clock using crystal oscillation is used to display data for imprinting. This clock is built into the data imprinting device and is constantly running on batteries, but its power consumption is extremely small. This embodiment is applied to a lens shutter camera, and in this case, unlike a focal plane shutter, even if the image is captured from the front of the film, it is not obstructed by the shutter. Therefore, various signals can be used for imprinting. (In this embodiment, a shutter close signal is used). In this embodiment, when no photography is being performed, the second time obtained by the clock is displayed, and after photography, the display is automatically switched to the date display based on the signal obtained when the shutter operation is completed, and data is imprinted. If the display 16 is set to automatically return to seconds upon completion of imprinting, the display 16 can be used as a clock at all times, and the date of photography can be recorded as data.

When winding with an automatic charging device,
First, the seconds on the display system are temporarily held using a shutter release signal, etc., the seconds are imprinted using the shutter operation completion signal, and when imprinting is completed, the film is advanced by half a frame and the seconds are displayed. It is also possible to change the date to the date, imprint it again, and then send the remaining half frame.

For cameras with electric shutters, if the power source for the clock and the power source are shared, you can easily tell by looking at the display screen whether the power source is present or not, without having to check. The data imprinting device of the present invention has the above-described configuration and uses the automatic charging device start signal emitted from the camera body as a command signal for data imprinting, so there is no need to perform a separate operation for data imprinting. There is no need to prepare a separate transmission means even if data is automatically imprinted.

The present invention starts a data imprinting operation using a signal that starts an automatic charging device, and its implementation can be summarized as follows, but it is noted that various other implementations are possible. Not even.

(1) The data imprinting device is detachable from the camera body.

(2) In the above, the power source of the automatic charging device is replaceable in a cassette type, and the data imprinting device is installed in the automatic charging device by replacing the cassette type power source.

(3) A data imprinting device is provided on the camera body side, and when the automatic charging device is attached to the camera body, the data imprinting device is installed, and when it is not attached, the data imprinting device is attached to the camera body. The automatic charging device start signal is sent through the device.

(4) Automatic charging device starting signal signal A signal that is emitted when the single-lens reflex mirror, diaphragm, etc. have returned to normal operation after exposure is completed in a young camera.

(5) An automatic charging device starting signal that is emitted to the camera when the rear curtain of the shutter is released. (6) Data is imprinted by lighting a flashbulb.

(7) The data to be imprinted is illuminated by external light and the data is imprinted using a shutter.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2a is a side view of the data imprinting optical system, FIG. 2b is a perspective view of an example of an aperture shielding mechanism for the same optical path, and FIG. 3 is a side view of another example of the data imprinting optical system, FIG. 4 is a perspective view and block diagram showing the internal main parts of the embodiment shown in FIG. 1, and FIG. 5 is a side cross-sectional view of another embodiment of the present invention. 6 is a side sectional view showing another usage of the same embodiment, FIG. 7 is a block diagram showing the configuration of the above embodiment, and FIG. 8 is an external perspective view of still another embodiment of the present invention.
FIG. 9 is a side sectional view of the above, FIG. 10 is a perspective view of another embodiment of the present invention, and FIG. 11 is a side sectional view of the main part of the above. 1...Camera, 4...Automatic charging device, 16,16''...Data display device, 17...
...Shutter, 39...Lighting light.

Claims (1)

[Claims] 1. In a camera to which an automatic charging device is detachably attached and having means for emitting an automatic charging start signal to start the automatic charging device after shooting, the camera includes a data display device and a shutter that blocks the optical path from the data display device to the film surface. or an illumination lamp that illuminates the data display device, an imprinting means for opening and closing the shutter or blinking the illumination lamp in response to an automatic charging start signal emitted from the camera body, and completion of data imprinting by the imprinting means. 1. A data imprinting device for a camera, comprising: a transmission means for giving a start signal to an automatic charging device so as to start a charging operation after a delay until later.