JPH06282005A - Data imprinter for camera - Google Patents

Abstract

PURPOSE:To imprint data on a film via an optical system by moving an optical means in accordance with the change of exposing region. CONSTITUTION:When a camera is switched to a panoramic mode, light shielding plates 51a and 51b and an optical unit 55 linked with the light shielding plate 51b are moved. Tame light shielding plates 51a and 51b are advanced to shield a picture 53 from light from the above and below of the film 50 and shield the upper and lower regions of the picture 53 from the light, to form a panoramic picture. Moreover, the optical unit 55 is moved from its lower limit to its upper limit. When a shutter is released, the data is sent from a data setting circuit to a data projector 54, to attain projection. An inverted image projected by the data projector 54 is reflected by a total reflection mirror 58, then, inverted by a long focus lens 57, to be turned into an erect image and then, reflected by a total reflection mirror 59, to be imprinted on the lower part of the picture as the data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data imprinting device for a camera that imprints data such as date, time, characters, etc. on a film at the time of photographing by the camera.

[0002]

2. Description of the Related Art Recently, a camera capable of performing standard photography and panoramic photography has been developed and is already on the market. This camera is provided with a standard mode and a panoramic mode, and a photographer selects a photographing mode to perform photographing.

When the standard mode is selected, FIG. 4 (A)
As shown in, the screen frame of the film 1 is formed to have a length H = 24 mm and a width L = 36 mm. Generally, the screen frame in the standard mode is defined by the aperture.

On the other hand, when the panorama mode is selected, as shown in FIG. 4B, the light-shielding plates 2a and 2b provided on the camera side are pushed out of the vertical direction of the film 1 by the selection operation and the film 1 The screen frame of the film 1 is formed to have a vertical length H ₁ = 13 mm and a horizontal length L ₁ = 36 mm while partially shielding the upper and lower sides.

In addition to this, there is a camera equipped with a high-definition mode.
A screen frame having a length of 20 mm and a width of 36 mm is formed by a and 2b.

On the other hand, many current cameras have an auto date function for displaying the date, time, characters and the like on a photograph. FIG. 5 shows an example of this auto data function.

On the front side of the film 1 whose photosensitive surface is 1a, there is provided an aperture 3 which forms a screen frame when the camera is in the standard mode, and on the front side of the aperture 3, When the camera is switched to the panorama mode, light-shielding plates 2a and 2b are provided which extend from the vertical direction of the film 1 and partially shield the upper and lower sides of the film 1. A taking lens (not shown) is provided on the front side of the light blocking plates 2a and 2b.

On the back side of the film 1, there is provided a data imprinting device 4 for imprinting data such as date, time and characters on the lower portion of the screen of the film 1. The data imprinting device 4 is composed of a liquid crystal display element (LCD) 4a and a light source 4b. The date, time, characters, etc. sent from the data setting circuit to the LCD 4a in synchronization with the shutter release of the camera. Data is displayed and is imprinted on the film 1 by the light source 4b which lights this data.

When the camera is in the standard mode, the data imprinting device 4 operates at the position indicated by the solid line in FIG. That is, the data is imprinted on the lower portion of the screen of the film 1.
As a result, this data is printed together with the image on the photograph obtained by enlarging the vertical length to the standard size during development.

[0010]

However, this auto-date function has no problem when the camera is shooting in the standard mode, but has the following problems when the camera is in the panorama mode. Occurs. In other words, the camera is panorama
When the mode is switched to the mode, the shading plates 2a and 2b advance from the vertical direction of the film 1 as shown by the one-dot chain line in FIG. 5 to partially shade the screen frame of the standard screen.
And the aperture 3 form a panoramic screen frame. Data imprinting device 4 on this panorama screen
Operates in the position shown by the solid line in FIG.
Data is imprinted outside the panorama screen area.
When the film 1 is enlarged and developed until the vertical length becomes the standard size, the data will not appear in the photograph.

On the other hand, it is conceivable to position the data imprinting device 4 in accordance with the panoramic screen as shown by the chain line in FIG. 5, but in this case, contrary to the above, in the standard mode. At the time of shooting, data is imprinted in the middle of the picture, and the quality of the picture is significantly deteriorated.

Therefore, the data imprinting device 4 described above is configured to be movable in association with the light shielding plates 2a and 2b. In the standard mode, the imprinting operation is performed at the solid line position shown in FIG. It is conceivable to move to the position indicated by the alternate long and short dash line in FIG.

However, the data imprinting device 4
Since the data displayed on the LCD 4a is directly copied onto the film 1, the LCD 4a is provided in close contact with the film 1. When the data imprinting device 4 is moved in this close contact state, the LCD 4a and the film 1 are moved.
Mechanical friction occurs between the film and the film, and the surface of the film 1 is scratched or the film 1 is deformed, which adversely affects the photograph. This also occurs during the frame advance operation of the film 1.

Further, since the data imprinting device 4 as described above operates while maintaining electrical connection, it is necessary to prevent disconnection, and there is a drawback that the structure tends to be complicated.

Therefore, an object of the present invention is to develop a data imprinting apparatus which can imprint data onto a film through an optical system and is structurally simple.

[0016]

In order to achieve the above-mentioned object, the present invention provides a camera capable of changing the exposure range by partially shielding the film exposure part, and within the above-mentioned exposure range at the time of photographing by the camera. , A data projection device of a camera for projecting data at a predetermined position, and an optical device for projecting the data onto the film exposing section. And a means for moving the optical means according to the change of the exposure range.

[0017]

The data projecting means and the optical means are provided in the camera so that the data can be photographed at a predetermined position in the exposure range of the film formed in advance, and the shutter release of the camera is provided. In response, the data projecting means projects the data,
The optical means forms an image on the film and imprints it on the film.

When the film exposure portion is partially shielded to change the exposure range, the optical means moves according to the change so that the data is imprinted at a predetermined position of the newly formed exposure range. The optical means is set in. Then, data is projected from the data projecting means in accordance with the shutter release of the camera, and this data is imaged and projected at a predetermined position in the exposure range newly formed by the optical means. Be done.

[0019]

Embodiments of the present invention will now be described with reference to the drawings. 1 and 2 are schematic sectional views of a camera portion equipped with a data imprinting device according to the present invention. FIG. 1 shows an operating state of the device in a standard mode.
Shows the operating state of the device in the panorama mode.

As shown in FIG. 1, on the front side of the film 50, light shielding plates 51a and 51b and an aperture 52 similar to those of the conventional example are provided. In the standard mode, the film exposure section 50a
However, the aperture 52 has a standard screen. Also,
In this standard mode, the light shielding plates 51a and 51b are retracted to the outside of the screen 53.

On the rear side of the film 50, a data projector 5 is provided.
4 and an optical device 55 are provided for the data imprinting device. The data projector 54 is an LCD 54a for displaying data such as date, time, characters, etc. taken in from the data setting circuit side when the shutter button of the camera is pressed, and an LCD 54a on the screen 53 of the film 50. And a light source 54b for imprinting the data, which is fixed in the camera so as to imprint the data on the lower part of the screen 53 formed in the standard mode, as shown in FIG.

The optical device 55 comprises a short focus lens 56, a long focus lens 57, and two total reflection mirrors 58 and 59 arranged in a case 60.
Is the data displayed on the LCD 54a in the standard mode.
Is used as an optical system for forming an image on the film 50,
The long focus lens 57 and the two total reflection mirrors 58 and 59 are used as an optical system for forming an image on the film 50 of the data displayed on the LCD 54a in the panorama mode.

The short focus lens 56 and the long focus lens 57 described above are formed as follows. 3A and 3B show the short focus lens 56. FIG. 3A is a front view and FIG. 3B is a side view. The short focus lens 56 is formed by arranging a plurality of small short focus convex lenses 56a in a horizontal row and integrally forming them.
6a corresponds to one character of data displayed on the LCD 54a. That is, the short focus lens 56 is
The number of convex lenses 56a corresponding to the maximum number of characters of data displayed on the LCD 54a is provided.

The long focus lens 57 is a short focus convex lens 56.
A is a long-focus convex lens, and is configured in the same manner as described above.

The optical device 55 is at its lower limit position in the standard mode, and the data projector 54 is at this lower limit position.
The light of the optical axis projected by is passed through the center of each convex lens 56a forming the short focus lens 56.

The optical device 55 is mechanically connected to one of the light shielding plates 51a and 51b extending from the up and down direction of the film 50, which extends from the lower side of the film 50. When the unit is switched from the standard mode to the panoramic mode, the section moves from the lower limit position shown in FIG. 1 to the upper limit position shown in FIG.

On the contrary to the above, the operation unit is panorama mode.
When the mode is switched to the standard mode, the light shielding plate 51b is returned to the lower limit position shown in FIG.

At the upper limit position of the optical device 55,
It is positioned so that the light on the optical axis projected by the data projector 54 enters the center of the total reflection mirror 58. The case 60 of the optical device 55 has a surface facing the LCD 54a at the upper limit position and the lower limit position, and the film 50.
The optical path surface for forming an image is opened.

Next, the operation of the above-mentioned data imprinting device will be described. When the camera is set to the standard mode, the film exposure section 50a is screened by the aperture 52. That is, vertical H = 24 mm,
The full-size screen 53 has a width L of 36 mm.

As shown in FIG. 1, the optical device 55 is set at its lower limit position. When the camera is shutter released in this state, the data setting circuit causes the data projector 54 to move.
Data is sent to the data projector 54.
Flooded by.

A data projector 54 displays an image 61 of the inverted data.
The inverted image 61 is inverted by the short focus lens 56 and becomes an upright image 62, which is displayed as data on the lower part of the screen 53.

Next, when the operation section of the camera is selectively operated to switch the camera to the panorama mode, the shading plates 51a and 51a are removed.
b and the optical device 55 that is interlocked with the light shielding plate 51b move.

As shown in FIG. 2, the light shielding plates 51a and 51b extend from the upper and lower sides of the film 50 so as to shield the screen 53, and shield the upper and lower regions of the screen 53 to form a panoramic screen 63. The optical device 55 moves from the lower limit position to the upper limit position.

In this state, when the shutter release of the camera is carried out, the data is sent from the data setting circuit to the data projector 54, and this data is projected by the data projector 54. The inverted image 64 projected by the data projector 54 is reflected by the total reflection mirror 58, is inverted by the long focus lens 57 and becomes an erect image 65, and is reflected by the total reflection mirror 59. Then, it is imprinted as data on the lower part of the screen 63.

When the camera is switched from the panorama mode to the standard mode, the shading plate 51 is operated according to the operation of the operation section.
a and 51b move backward, the optical device 55 moves to the lower limit position in conjunction with the backward movement of the light shielding plate 51b, and returns to the state shown in FIG.

In the above embodiment, the case where the data is imprinted in the screen setting of the standard mode and the panoramic mode has been described, but by changing the operation range of the light shielding plates 51a and 51b, the high-definition screen is displayed. The same can be applied to the case of shooting on any screen such as.

In this embodiment, the screen is set by the aperture 52 and the light shielding plates 51a and 51b.
It is also possible to form the screen frame of each mode by the light shielding plates 51a and 51b without providing the aperture 52.

The optical device 55 in this embodiment may be constituted by a magnifying optical system. If configured with a magnifying optical system,
Since the projector 54 can be miniaturized, the overall size and cost of the device can be reduced.

In carrying out the present invention, a lens is attached to the data projector 54 so that the projection of the data projector 54 is imaged on the film surface by one lens, and
The data projector 54 may be moved in association with the light shielding plate 51a, or the data projector 54 may be configured by using a light emitting element such as an LED instead of the LCD 54a and the light source 54b. it can.

[0040]

As described above, since the data imprinting device of the camera according to the present invention has a structure in which the data is imprinted on the film through the optical system, the data projecting device of the conventional art is used. It is not necessary to provide the film in close contact with the film, and the data can be imprinted without adversely affecting the film.

Further, since the data projecting means of the data imprinting device can be fixedly provided on the camera side, the device is structurally extremely simple.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a camera portion including a data imprinting device according to the present invention, showing an operating state of the device on a standard screen.

FIG. 2 is a sectional view similar to FIG. 1, showing an operating state of the device on a panoramic screen.

3A and 3B are diagrams showing a lens shape of a short focus lens provided in an optical device, FIG. 3A is a front view of the lens, and FIG. 3B is a side view of the lens.

4A and 4B are views for explaining a film photographing screen, showing a conventional example, in which FIG. 4A is a standard screen and FIG. 4B is a panoramic screen.

FIG. 5 is a schematic sectional view of a camera portion showing a conventional data imprinting apparatus.

[Explanation of symbols]

 50 film 50a film exposure part 51a, 51b light-shielding plate 52 aperture 53 screen 54 data projector 55 optical device 63 screen

Claims (1)

[Claims] 1. A data copy of a camera, which is provided in a camera capable of changing an exposure range by partially shielding a film exposure section, and which records data at a predetermined position within the exposure range when photographing with the camera. In the apparatus, the data projection means for projecting the data and the optical means for focusing the data projection on the film exposure section are provided, and the optical means is provided according to the change of the exposure range. An apparatus for imprinting data on a camera, characterized in that it is moved.