JPH05281607A - Data imprinter - Google Patents

Abstract

PURPOSE:To record data at the different position of a photographic film, and further, at prescribed magnification, according to the size of a photographed frame, at low cost. CONSTITUTION:A changeover lever 38 is operated, a movable mirror 35 is inserted in an optical axis 32a. When an illuminating lamp 33 and an LCS 31 are driven, light transmitted the LCD 31 forms an image on the photographic film 3 from an aperture 28 via an image forming lens 30 and the movable mirror 35. On the other hand, when the movable mirror 35 is retreated from the optical axis 32a, and the illuminating lamp 33 and the LCD 31 are driven, the light transmitted the LCD 31 forms the image on the photographic film 3 from an aperture 29, via the image forming lens 30, a concave lens 36, and a fixing mirror 37.

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 imprinting data such as characters and marks on a photographic film.

[0002]

2. Description of the Related Art Recent cameras have a standard size of 36 mm x 2
In addition to the 4 mm full-size shooting, there is one in which the size of the exposure frame can be changed so that a panoramic size of 36 mm × 13 mm can be taken. When a data imprinting device is incorporated in such a camera, it is necessary to switch the imprinting position of the data depending on which screen size is used for photographing.

Further, as is well known, when printing is performed from a negative photographed in a panoramic size, the print magnification is set to double that when printing from a full size negative. Therefore, when data is imprinted at the time of panoramic photography, it is desirable to reduce the size of the data image imprinted on the film to about 1/2 of that at the time of full-size photography.

[0004]

From such a background,
In addition to the conventional data imprinting device for full-size shooting,
Attempts have been made to incorporate a data imprinting device for panoramic photography. However, simply using two types of data imprinting devices not only increases the number of parts and the number of assembling steps, but also raises the cost, and has a disadvantage in that the space for assembling is disadvantageous.

The present invention has been made in consideration of such circumstances, and has a function of changing the data recording position and the size of the data image in response to the switching of the photographing screen, and further, the cost and the incorporation It is an object of the present invention to provide a data imprinting device that does not become disadvantageous in terms of space.

[0006]

In order to achieve the above object, a data imprinting apparatus according to claim 1 is a liquid crystal display plate for displaying data such as characters and marks imprinted on a photographing screen of a photographic film. And a light source for illuminating the liquid crystal display plate, a first projection optical system for forming an image of transmitted light of the liquid crystal display plate at a first position in a photographing screen, and the first projection optical system are different from each other. A second projection optical system for forming the transmitted light into an image at a second position within the photographing screen at an image magnification, and the first or second photographing device in conjunction with a switching operation of the photographing screen size.
The optical system selecting means selects any one of the imprinting optical systems.

According to the second aspect of the present invention, the transmitted light is imaged at a standard magnification at the end of the 35 mm full-size photographing screen by the first imprinting optical system, or by the second imprinting optical system. In the invention according to claim 3, wherein an image is formed at an end portion in the panoramic photographing screen with a reduction magnification, the first projection optical system is composed of a convex lens, a concave lens and a reflecting surface which are sequentially arranged from the liquid crystal display plate side. At the same time, the second projection optical system is constituted by a reflecting surface which is inserted / removed between the convex lens and the concave lens in association with the operation of the convex lens and the optical system selecting means.

According to a fourth aspect of the present invention, the first projection optical system is composed of a movable first convex lens and a fixed first reflecting surface which are arranged in order from the liquid crystal display panel side, and the second projection optical system is also provided. Is composed of a second convex lens integrally incorporated in the holding frame of the first convex lens and a reflecting surface, and is linked between the liquid crystal display plate and the first reflecting surface in association with the operation of the optical system selecting means. The holding frame is sliding.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a camera embodying the present invention and a photographic film cartridge used for the same. The photographic film cartridge 2 comprises a photographic film 3, a spool 4 around which the photographic film 3 is wound in a roll, and a cartridge main body 5 which accommodates the photographic film 3 in a light-tight manner.
A well-known perforation 6 is formed along the side edge of the photographic film 3.

An exposure frame 12 is provided in the center of the camera body 11 with the back cover 10 opened and closed. An exposure opening 13 is formed in the center of the exposure frame 12. Further, a pair of rotatable frame regulating members 14a and 14b are provided on the front side of the exposure frame 12, and the pair of frame regulating members 14a and 14b regulate the vertical width of the opening 13. When shooting is performed in the illustrated state, a panorama size frame 15 is printed on the photographic film 3 as shown in FIG. Further, the frame restricting members 14a and 14b have openings 1
When shooting is performed in a state in which the frame 3 is retracted outside the contour, a full-size frame 16 is imprinted on the photo film 3.

A sprocket 17 that engages with the perforation 6 and a terminal 19 that comes into contact with a pin terminal 18 of the back cover 10 when the back cover 10 is closed are provided above the exposure opening 13. ing. On both sides of the exposure frame 12, a cartridge chamber 20 for accommodating the photographic film cartridge 2 and a film winding chamber 22 having a winding shaft 21 are provided.
And are formed. A cartridge loading port 23 is formed in the cartridge chamber 20 from which the photographic film cartridge 2 is loaded. A fork 24 for rotating the spool 4 is provided above the cartridge chamber 20.

The back cover 10 has a pressure plate 26 for pressing the photographic film 3 against the exposure frame 12, and the photographic film 3 has the take-up shaft 2 attached thereto.
A film guide plate 27 for guiding the photographic film 3 is provided so as to be wound around 1. The pressure plate 26 has openings 28, 2 for imprinting data on the photographic film 3.
9 is formed. The alternate long and short dash line on the pressure plate 26 corresponds to the contour of the top 15, and the alternate long and two short dashes line corresponds to the contour of the top 16.

FIG. 2 shows a first embodiment of the data imprinting device of the present invention provided on the back cover. The case back 1
At 0, a convex lens 30 is provided so that the optical axis is parallel to the pressure plate 26. In the figure, the convex lens 3
On the lower side of 0, a liquid crystal display plate 31 (hereinafter referred to as LCD 31) driven by a CPU, which will be described later, a condenser lens 32, and an illumination lamp 33 are sequentially arranged on an optical axis 32a. A movable mirror 35, a concave lens 36, and a fixed mirror 37 are arranged above the convex lens 30. In the data imprinting apparatus of this embodiment, the illumination lamp 33 is used as the light source, but it may be an LED. The movable and fixed mirrors may be prisms.

The movable mirror 35 is fixed to a rotatable switching lever 38, and by operating the switching lever 38, the movable mirror 35 is moved in and out of the optical axis 32a. Movable mirror 35
Is positioned on the optical axis 32a as shown, the light from the illumination lamp 33 is reflected by the movable mirror 35,
An image is formed on the photographic film 3 through the opening 28. Further, when the movable mirror 35 is retracted from the projection light path, the light from the illumination lamp 33 passes through the concave lens 36,
The light is reflected by the fixed mirror 37, passes through the opening 29, and is imaged on the photographic film 3. The switching lever 38 is provided with a toggle spring (not shown), and the movable mirror 35 is positioned on the optical axis 32a or at the retracted position. Reference numeral 39 indicates a switch for detecting the position of the switching lever 38.

FIG. 3 shows the electrical construction of a camera embodying the present invention. LCD 31, illumination lamp 33
The clock circuit 48, the ROM 49, and the signal generator 50 provided in the switch 39 are connected to the CPU 45 that controls the driver via the drivers 46 and 47, respectively. The clock circuit 48 calculates the data displayed on the LCD 31, for example, the date. A program for controlling the lighting time of the illumination lamp 33 is written in the ROM 49 so that the amount of reflected light becomes constant. Further, the CPU 45 is connected to the microcomputer 51 that controls the camera when the back cover 10 is closed. This microcomputer 51, via the driver 52,
A motor 53 for rotating the pair of frame regulating members 14a and 14b is connected.

In this electrical configuration, when the switch 39 is turned on, an ON signal is output from the signal generator 50 to the CPU 4
5 is output. When the CPU 45 outputs this to the microcomputer 51, the microcomputer 51 rotates the motor via the driver 52 to move the frame regulating members 14a and 14b to the panoramic position shown by the one-dot chain line in the figure. In addition, switch 3
When 9 is OFF, the microcomputer 51 moves the frame regulating members 14a and 14b to the full size position shown by the solid line in the figure. When a release signal is input to the microcomputer 51, the CPU 45 drives the LCD 31 and the clock circuit 4
8 data is displayed and the switch 39 is turned ON,
The illumination lamp 33 is turned on based on the lighting program corresponding to OFF.

The operation of the data imprinting apparatus of the present invention constructed as above will be described. Camera body 11
Then, the photo film cartridge 2 is loaded into the and the back cover 10 is closed. When shooting is performed in this state, a panorama-sized frame 15 is printed on the photo film 3. At this time, the CPU 45 displays, for example, the data A of “4.1.1” on the LCD 31 and turns on the illumination lamp 33.

The light from the illumination lamp 33 is applied to the LCD 31 via the condenser lens 32. LCD3
The light that has passed through 1 passes through the convex lens 30, and the movable mirror 3
The image is reflected on the photo film 5 and forms an image on the photographic film 3 through the opening 28. As a result, the data B of "4.1.1" is imprinted on the frame 15 as shown in FIG. After this, frame advance is performed and preparation for the next shooting is made.

Here, when the switching lever 38 is operated to retract the movable mirror 35 to the outside of the optical path of the convex lens 30, the panoramic photography is changed to the normal photography. When the switch 39 is turned ON, the signal generator 50 sends an ON signal to the microcomputer 51 via the CPU 45. The microcomputer 51 is the motor 5
3 is driven to rotate the frame regulating members 14a and 14b to the full size position. When shooting is performed in this state, a full-size frame 16 is printed on the photo film 3. At this time, the CPU 45 causes the LCD 31 to display "4.
1.1 ”data is displayed and the illumination lamp 3
Turn on 3 for a longer time than during panoramic shooting.

The light transmitted through the LCD 31 has a convex lens 30,
The light passes through the concave lens 36, is reflected by the fixed mirror 37, and forms an image on the photographic film 3 through the opening 29. As a result, the data A of “4.1.1” larger than the data B of “4.1.1” shown in the frame 15 is imprinted on the frame 16 as shown in FIG.

FIG. 5 schematically shows a second embodiment of the data imprinting device. In this embodiment, the movable mirror 35
As shown in the drawing, the concave lens 36 of the first embodiment is attached to the switching lever 60 for holding, and when the movable mirror 35 is retracted from the light projecting optical path as shown in the drawing, it is inserted on the optical axis 32a. There is. For this reason, in this embodiment, there is no need for a space for disposing the concave lens 36 between the convex lens 30 and the fixed mirror 37, so that the apparatus can be downsized.

FIG. 6 schematically shows a third embodiment of the data imprinting device. In this embodiment, a movable mirror 35 and a concave lens 3 are used instead of the switching lever 60 of the second embodiment.
A movable holding frame 65 that holds 6 is used. By moving the holding frame 65, the movable mirror 35 and the concave lens 36 are alternately inserted into and removed from the optical axis 32a. Also in this embodiment, the device can be downsized.

7 and 8 show a data imprinting device for imprinting the data displayed on the LCD 31 on a photographic film by using a set of convex lenses having different focal lengths and inserting one of them in the optical path of the image. Is shown. In this embodiment, a slide plate 71 is slidably held by a pair of claw portions 70 formed on the back cover 10. A convex lens 72 having a long focal length, a convex lens 73 having a short focal length, and a mirror 74 arranged on the optical axis 73a of the convex lens 73 are fixed to the slide plate 71, as shown in the figure.

The slide plate 71 is arranged between the LCD 31 and the fixed mirror 37. On the slide plate 71, a knob 76 exposed to the outside from the opening 75 of the back cover 10 is formed. As a result, the slide plate 71 is attached to the back cover 1
You can slide with 0 closed. The slide plate 71 is biased by a toggle spring (not shown) so that one of the centers of the convex lenses 72 and 73 is aligned with the optical axis 32a. Further, in this embodiment, the convex lenses 72, 73 and the mirror 74 are discretely fixed to the slide plate 71, but if these are integrated as shown in FIG. 9, the device can be downsized. If the mirror 74 is replaced with a prism, the integration becomes easier.

In the data imprinting apparatus thus constructed, when the illumination lamp 33 and the LCD 31 are driven in the illustrated state, the light transmitted through the LCD 31 is projected by the convex lens 72 through the fixed mirror 37 and the opening 29. 3 is formed on the LCD 31, and for example, "4.1.
When "1" is displayed, the data A of "4.1.1" is imprinted in the frame 16 as shown in FIG. Further, the slide plate 71 is moved to the left in FIG.
When the illumination lamp 33 and the LCD 31 are driven after the optical axis 73a of the convex lens 73 is aligned with 2a, the LCD
The light transmitted through 31 is reflected by the convex lens 72 to the mirror 7
4, when an image is formed on the photographic film 3 through the opening 28 and the LCD 31 displays "4.1.1",
Data B of “4.1.1” is displayed in frame 15 as shown in FIG.
Imprinted inside.

In the above embodiment, the optical axis 32a is arranged so as to be orthogonal to the feeding direction of the photographic film 3 and the data is imprinted at different positions in the longitudinal direction of the frame.
By arranging a in parallel with the feeding direction of the photographic film 3, the data can be imprinted at different lateral positions of the frame. Therefore, the present invention can be applied not only to a camera whose shooting screen size is variable in the vertical direction of a frame but also to a camera whose horizontal direction is variable.

[0027]

As described above, in the data imprinting apparatus of the present invention, the optical path is switched according to the frames photographed in different sizes, and the data displayed on the liquid crystal display panel is placed in different positions of the photographic film. Since the image is taken at different magnifications, it is possible to share the LCD panel and light source.
The manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a camera embodying the present invention with a back cover opened.

FIG. 2 is a diagram showing a first embodiment of a data imprinting device cut along the line AA shown in FIG.

FIG. 3 is a diagram showing an electrical configuration of the camera shown in FIG.

FIG. 4 is a view showing a photographic film taken by the camera shown in FIG.

FIG. 5 is a diagram showing a second embodiment of the data imprinting device.

FIG. 6 is a diagram showing a third embodiment of the data imprinting device.

FIG. 7 is a sectional view showing a data imprinting device of another invention.

FIG. 8 is an explanatory view of the operation of the data imprinting device shown in FIG. 7.

FIG. 9 is a diagram showing an optical element in which two convex lenses and one mirror are integrated.

[Explanation of symbols]

 3 Photo film 15 Panorama size frame 16 Full size frame 28,29 Opening 31 LCD 33 Lighting lamp 30, 72, 73 Convex lens 32a Optical axis 35 Movable mirror 37 Fixed mirror

Claims (4)

[Claims] 1. A data imprinting device for imprinting data such as characters and marks on a photographing screen of a photographic film, comprising: a liquid crystal display plate for displaying the data; a light source for illuminating the liquid crystal display plate; First projection optical system for forming an image of the data light transmitted through the liquid crystal display plate at a first position in the photographic screen, and the data at a different image magnification from the first projection optical system. Second light in the shooting screen
And a second projection optical system for forming an image at the position, and an optical system selecting means for selecting one of the first and second projection optical systems in association with the switching operation of the photographing screen size. Characteristic data imprinting device. 2. The first projection optical system forms data light at a standard magnification at an end portion within a 35 mm full size photographing screen, and the second projection optical system has a standard magnification at an end portion within a panoramic photographing screen. The data imprinting apparatus according to claim 1, wherein the data light is imaged at a magnification smaller than that. 3. The first projection optical system is configured by arranging a convex lens, a concave lens, and a reflecting surface in order from the liquid crystal display panel side, and the second projection optical system is interlocked with an operation of switching a photographing screen size. The data imprinting device according to claim 1, further comprising a reflecting surface that is inserted into and removed from the convex lens and the concave lens. 4. The first projection optical system is composed of a movable first convex lens and a fixed first reflecting surface which are sequentially arranged from the liquid crystal display plate side, and the second projection optical system is the first projection optical system. It is composed of a second convex lens and a second reflecting surface which are integrally incorporated in a holding frame of the convex lens, and a second lens is provided between the liquid crystal display plate and the first reflecting surface in association with the switching operation of the photographing screen size.
The data imprinting device according to claim 1, wherein the first imprinting optical system is switched to the second imprinting optical system by inserting a convex lens and a second reflecting surface.