JPH04119441U - Data imprinting device for camera - Google Patents

Abstract

(57) [Summary] [Purpose] To incorporate a data imprinting device for trimming data into a camera at low cost and in a space-saving manner. [Structure] A date display 14a, a trimming data display 14b, and a reference pattern display 14c are displayed on a liquid crystal display board 14 for data imprinting, and these displays are imprinted on the film all at once by lighting the lamp 11. Date display 14
a is imprinted on the shooting screen, and the trimming data display 1
4b and the reference pattern display 14c are printed outside the photographic screen.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention imprints the cropping data at the time of printing in addition to the shooting date and time data. The present invention relates to a data imprinting device for a camera.

0002

[Conventional technology]

As described in Japanese Unexamined Patent Publication No. 54-26721, a fixed focus photographing lens is used. When printing from negatives shot through the Zoom to reference and set cropping range and print magnification before printing Print systems are known. According to this, the camera side has a viewfinder. It has a variable magnification function or a variable field of view function, and also has a variable magnification function or a variable field of view function, and also All you need is a built-in mechanism to imprint the rimming data onto the film, and the fixed focus The photographic lens can be used as if it were a zoom lens. Unexamined Japanese Patent Publication 1986 -103627 discloses a camera that is compatible with the above zoom print system. The camera is used to imprint the cropping data on the film at the time of shooting. A trimming data imprinting mechanism is built into the camera back.

0003

[Problem that the idea aims to solve]

However, this can also be seen in the camera described in JP-A-62-103627. The camera can be equipped with a built-in date imprinting device that imprints the date and time of the photo taken. Because of this, in addition to this date imprinting device, there is also a trimming data imprinting device. When the device is built into the camera back, the number of parts built into the camera back increases, making the camera back thicker. This hinders downsizing and increases costs. On the other hand, the camera body side Even if a trimming data imprinting device is installed on the On the other hand, since the trimming data imprinting device is added as is, Again, this is disadvantageous in terms of making the camera more compact and at lower cost.

0004 The present invention solves the drawbacks of the above-mentioned conventional technology, making the camera more compact and lower cost. For cameras that allow trimming data to be imprinted without compromising the image quality. The purpose is to provide a data imprinting device.

[0005]

[Means to solve the problem]

In order to achieve the above purpose, this invention uses the shooting date The date imprinting device used for imprinting the time can also be used for imprinting the trimming data. This allows the trimming data to be imprinted in a different position from the shadow date and time data. be. Trimming data must be read when printing, so the shooting date and time Cropping data is imprinted outside the shooting screen, while the data is imprinted within the shooting screen. Make sure to include it. Furthermore, in this invention, trimming is performed adjacent to a certain pattern display. Imprint the data and use the pattern display as a reading reference to trim the trimming pattern. It has been devised to ensure that the data is read accurately.

[0006]

【Example】

Figures 1 and 2 schematically show the electrical configuration and cross-section of essential parts of a camera using the present invention. In the finder 2, a liquid crystal display panel 3 is incorporated. This LCD display board 3 corresponds to the set position of the trimming knob 5, and corresponds to any of the viewing frames 3a, 3b, and 3c. Display the In other words, the trimming is performed in accordance with the set position of the trimming knob 5. When trimming data is input from the trimming signal generation circuit 6 to the CPU 7, the CPU 7 The viewfinder LCD driver 8 is driven to change the display form of the liquid crystal display board 3. Then, when the trimming knob 5 is set to the index "N (normal)", the LCD display The entire surface of the plate 3 becomes a transparent area and a viewing frame 3a is obtained, and the index "×1.5 (1.5 times If you set the index to "x2 (telephoto)", you will get the field of view frame 3b, and if you set the index to "x2 (double telephoto)" The narrowest viewing frame 3c is obtained. Of course, you can simply switch the field of view frame to three levels. It is also possible to change this continuously.

[0007] A data imprinting device 10 is incorporated into the back cover 9 of the camera. data copy The imprinting device 10 includes a lamp 11, a light guide 12, a mirror 13, and an imprinting device. It consists of a liquid crystal display board 14. The lamp 11 is activated by a command from the CPU 7. The inrush signal generation circuit 16 operates, and a lighting pulse of a predetermined time width is sent to the lamp driver 1. It lights up when supplied to 7. The light guide 12 is made of a resin prism, for example. By applying a reflective coating to the slope formed at the tip of the mirror, -13 is formed. The liquid crystal display board 14 is operated by an LCD driver 18 for imprinting. It is driven by The imprint LCD driver 18 receives date data from the clock circuit 19. and trimming data from the trimming signal generation circuit 6 are supplied. A date display 14a and a trimming data display 14b are performed. In addition, Reference pattern data is supplied from the CPU 7 to the LCD driver 18 for printing. , whereby the reference pattern display 14c is performed.

[0008] The above date display 14a, trimming data display 14b and reference pattern display 14 The display position of c is determined as shown in FIG. and incorporated into the back cover 9. All the displays displayed on the liquid crystal display board 14 are displayed on the pressure plate 20 that is attached to the back of the film 22. An opening is formed so as to be imprinted on the surface. In addition, these data imprinting is transmitted from the release signal generation circuit 25 to the CPU 7 by operating the shutter button 24. This is done at the timing when the release signal is input. Also, a release signal is sent to CPU7. When the signal is input, the shutter device 27 is activated via the well-known exposure control circuit 26. , a subject image is photographed on the film 22 through the aperture 30.

[0009] The effect of the above configuration will be explained. Framing through finder 2 When shooting, if the photographer intends to take a 2x telephoto shot, the framing knob 5 should be set as an index. Set to "x2". As a result, the inside of the finder 2 is displayed by the liquid crystal display board 3. The narrowest viewing frame 3c is displayed. When field frame 3c is selected, it corresponds to "x2" The trimming data obtained is supplied to the LCD driver 18 for imprinting, and the trimming data is displayed on the liquid crystal display board. 14, the array pitch is the same as that of the reference pattern display 14c. 10110'' is displayed in the trimming data display 14b. Also, LC for imprinting Since the D driver 18 is constantly supplied with date and time data from the clock circuit 19, The date display 14a will not be displayed on the liquid crystal display board 14 unless the date imprinting prohibition operation is performed. It will be done.

0010 When the shutter button 24 is pressed, the release signal is sent from the release signal generation circuit 25 to the CPU 7. When the shutter signal is input, the shutter device 27 is activated via the exposure control circuit 26. , and filming takes place. At the same time, the CPU 7 sends a signal to the imprint signal generation circuit 16. An imprint signal is supplied. The imprint signal generation circuit 16 controls the sensitivity of the film 22. A lighting signal with a pulse width corresponding to 11 lights up for a predetermined period of time. When lamp 11 is lit, the light from lamp 11 is The back of the film 22 is illuminated by illuminating the liquid crystal display panel 14 through the guide 12 and mirror 13 Date display 14a, trimming data display 14b, reference pattern display 14c on the surface are captured all at once. As shown in FIG. 3, the date display 14a is displayed on the shooting screen 40. In contrast, the trimming data display 14b and the reference pattern display 1 4c are respectively imprinted outside the photographic screen 40.

[0011] Trimming data imprinted outside the photographic screen 40 of the film 22 as described above The display 14b is read by the printer's reading device when printing. . The film 22 is photographed with a fixed screen size using an aperture 35. However, due to the code arrangement of the trimming data display 14b, it is intended to be a "double telephoto" It is identified that the screen was taken with Therefore, in this case, the normal By printing at twice the magnification of the lint, you can frame it in the field of view frame 3c. You can obtain a printed photograph of the subject you have photographed. Also, the trimming data display 14b When reading, by comparing with the reference pattern display 14c, It becomes possible to significantly reduce reading errors.

0012 When shooting with the trimming knob 5 set to the index "x1.5", the film Outside the shooting screen 40 of 22, adjacent to the reference pattern display 14c, The corresponding trimming data display will be imprinted. Therefore, when printing, All you have to do is read the code data and print at a 1.5x magnification. In addition , when shooting with the trimming knob 5 set to the index "N", the LCD screen 1 4, the trimming data display 14b is not performed, so the camera is not displayed at the time of shooting. The trimming data display is not imprinted on the frame 22. In this case, conventional Printing is performed at a different print magnification. Of course, for the index “N” as well, Allocate trimming data that represents the normal print magnification and use this as a file. Of course, it may be imprinted on the ilm 22.

[0013] In the embodiment shown in FIG. 4, the lamp 1 The light from 1 is guided to the mirror 43, thereby illuminating the liquid crystal display board 44 for imprinting. I try to do that. There are two mirrors between the liquid crystal display board 44 and the film 22. 45 and 46 are provided. And, regarding the date display, please leave it as is on the shooting screen 4. Imprinted in area A1 in 0, trimming data display and reference pattern display is an area A2 near the edge of the film 22 after being reflected by the mirrors 45 and 46. is imprinted on the image. According to this configuration, the liquid crystal display board 44 is made small and the date and time display Even if the rimming data display is displayed close to the rimming data display, the This makes it possible to separate these and imprint them. In addition, the mirrors 45 and 46 are Alternatively, a trapezoidal prism having two reflective surfaces parallel to each other can also be used.

[0014] The present invention has been explained above according to the illustrated embodiments, but Instead of providing the liquid crystal display panel 3 in the finder 2, the finder 2 may be of a variable magnification type. stomach. In addition to using the zoom finder, we also provide information on trimming data. If you make more detailed settings, you can use the zoom print service according to the trimming data. You can also do In addition, a trimming knob 5 is provided on the back cover 9, and a trimming knob 5 is provided on the back cover 9. If the trimming information is displayed on the camera back 9, there will be no trimming function at all. Even if it is a conventional camera, you can easily change it to a trimming camera by simply replacing the back cover. It becomes possible to do so. Furthermore, the liquid crystal display for imprinting used in this invention The plate 14 is a camera that is obtained as a one-chip module and does not have a trimming function. The LCD display board can also be used as an LCD display board for imprinting shooting date and time data. At the same time, we can expect lower costs through mass production, and at the same time, By using the same for all cameras, you can copy the trimming data. The imprint position and imprint quality are constant, ensuring reliable reading of trimming data. can do. Please note that cameras with a data imprinting device built into the camera body The present invention is equally applicable to La.

[0015]

[Effect of the idea]

As described above, according to the present invention, it is possible to The LCD display board can also be used to imprint trimming data. , there is no need to incorporate a new imprinting device into the camera to imprint the trimming data. This greatly contributes to making cameras more compact and lower in cost.

[Brief explanation of drawings]

FIG. 1 is a block diagram schematically showing the electrical configuration of a camera using the present invention.

FIG. 2 is a cutaway view of essential parts of a camera using the present invention.

FIG. 3 is a perspective view of essential parts of the data imprinting device.

FIG. 4 is a sectional view of a main part showing another example of a data imprinting device.

[Explanation of symbols]

2 Finder 3 Liquid crystal display board (for finder) 5 Trimming knob 10 Data imprinting device 14 Liquid crystal display board (for imprinting) 14a Date and time display 14b Trimming data display 14c Standard pattern display 22 Film 40 Shooting screen

Claims (3)

[Scope of utility model registration request] [Claim 1] Displaying photographing date and time data on a liquid crystal display board,
In a data imprinting device for a camera that imprints this onto the film by lighting an imprinting light source, displaying the trimming data at the time of printing on the liquid crystal display board;
A data imprinting device for a camera, characterized in that the trimming data is imprinted at a position different from a position where the photographing date and time data is imprinted by turning on the light source. 2. The data imprinting device for a camera according to claim 1, wherein the photographing date and time data is imprinted within the photographing screen, and the trimming data is imprinted outside the photographing screen. 3. The data imprinting device for a camera according to claim 1, wherein the trimming data is imprinted adjacent to a certain pattern display.