JPH0228628A - Data imprinting device for camera - Google Patents

Abstract

PURPOSE:To maintain clear and excellent imprinting quality without allowing blurring and to imprint various information by providing plural light sources, light shielding bodies and optical paths and arranging each optical path parallel to each other. CONSTITUTION:Two tungsten lamps 11a and 11b are used as the light sources, which are arranged on the end parts of an optical path grooves 3a and 3b, respectively. The light sources 11a and 11b are set in the directions of the optical path 1a and 1b provided parallel to each other, and each imprinting center of 9a and 9b is on its optical path. Thus, the excellent imprinting quality is maintained, various bits of information are simultaneously imprinted, and the inexpensive device is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a data imprinting device for a camera that imprints data onto the film of a camera.

[Prior Art] A conventional date imprinting device for a camera uses one light source and one liquid crystal panel as a light shield to form one optical path.
Data corresponding to the content displayed in the negative on the LCD panel was imprinted onto the film. Other dot-shaped LEDs
There was a device in which a vertical array of data was placed near the film surface, synchronized with the rewinding of the film, and pre-stored data was imprinted on the film surface by driving an LED.

[Problem to be Solved by the Invention 1] In recent years, due to the need for more information on imprinted data by cameras, liquid crystal panels for imprinting have become dynamically driven, and the amount of information that can be imprinted has also increased. An increase in the amount of information naturally means that the length of the data to be imprinted increases, and if this is handled by one light source and optical path, the spread angle of the light increases, and the clarity of the imprinted data increases. The quality of these products deteriorated and there were limits.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive data imprinting device for a camera that has good imprinting quality, can imprint a large amount of information at the same time, and is inexpensive.

[Means for Solving the Problems] In order to solve the above problems, the present invention includes a tungsten lamp as a light source, and a tungsten lamp that is disposed in an optical path from the light source to the film and that emits part of the light emitted by the light source. A data imprinting device for a camera, which has a light shielding body that blocks light, and imprints data corresponding to the light shielding shape of the light shielding body onto a film, which has a plurality of light sources and light shielding bodies, and each optical path is set in parallel. It is characterized by having been placed. Furthermore, an optical filter may be provided in at least one of the optical paths.

[Example 1] The present invention will be described in detail below. FIG. 1 is a plan layout diagram of a camera data imprinting device according to the present invention attached to the back cover, as viewed from the back cover side. As shown in FIG. 1, in this embodiment, two tungsten lamps, lla and llb, are used as light sources, and each is placed at the end of the optical path groove 38 and 3b provided in the frame 3. The light sources 11a and llb have respective optical paths 1a and 1b.
It is set in the direction b. 9a and 9b are the centers of each imprint, and 10 is the size of the imprint film.

FIG. 2 is a side view of the optical path la section by the light source 11a. The light source 11a is fixed to the circuit board 4 by soldering, and the light emitted from the light source 11a is cut off from scattered light by the light and path grooves 3a provided in the upper frame 3. 2 is a reflecting mirror fixed to the upper frame 3, and is set at an angle of 45" with respect to the optical axis of the light emitted from the light source 11a. 5 is a light-shielding plate for forming data, and the mirror is set to be inclined by 45" with respect to the optical axis of the light emitted from the light source 11a. A negative film with a white outline is used, and it is set in the lower frame 8.The means for forming the data on the light shielding plate 5 is to completely block the light in the areas that are not imprinted, so a resin such as transparent polyester is used. There are various types of films such as printed, nickel, or aluminum vapor-deposited, so you can choose one based on price, accuracy, etc. Filter 6 has a flat absorption characteristic in almost the entire wavelength range of visible light. , is provided for the purpose of controlling the amount of light reflected by the reflecting mirror 2 and converted into data by the light shielding plate 5.If a filter 6 having spectral characteristics is used, desired coloring is possible. The light that has passed through the route finally reaches the film 7, and the data formed on the light shielding plate 5 is imprinted thereon.On the other hand, the light shielding plate 5 on the optical path 1b side has a liquid crystal panel on which a date can be written. The date at the time of scanning is imprinted on the film 7.

An example of a photograph reflected by this embodiment is shown in Fig. 3.
As the data imprinted by the optical path 1a, the "
"Sports Day" and the date 12b imprinted on the optical path 1b side
r88 6 24J is imprinted.

In this example, there are two light paths, one of which uses a negative film and one of which uses a liquid crystal panel, but it is possible to further increase the number of light paths. It is also possible to use a panel. Furthermore, it would be even more practical if the light shielding plate could be replaced, or data could be selected by rotating or moving it.

[Effect 1 of the Invention As explained above, the camera imprinting device of the present invention has the following features:
By preparing multiple light sources, light shields, and light paths, and arranging each light path parallel to each other, we have ensured clear and good imprint quality without blurring, and have made it possible to imprint a large amount of information. . Conventionally used when imprinting a lot of information,
It also has the advantage that it does not require an expensive control circuit, unlike the type of dot-shaped ED that imprints when winding the film, and can be provided at a low cost. In addition, as in the example, when one side reflects the light transmitted through the liquid crystal panel and the other side imprints the data from the negative film, it is preferable that the amount of light in both images is about the same. Since the transmittance of the panel is usually about 20%, by inserting an equivalent filter in the other optical path, it is possible to imprint with a uniform amount of light.

[Brief explanation of the drawing]

FIG. 1 is a plan layout diagram of a camera data imprinting device according to the present invention attached to the back cover, as seen from the back cover side, including a light source and an optical path section. FIG. 2 is a side view of the optical path section on the light source 11a side. FIG. 3 is an explanatory diagram of the photograph side taken according to the present invention. 1a, 1b...・ ・ ・ ・ ・Optical path・Reflector・Upper cover・Optical path groove・Circuit board・Light blocking body・Optical filter・Film 8 ・ ・ ・ ・ ・ ・ 9a, 9b ・・ 10 ・ ・ ・ ・ ・ 11a, 1lb- 12a, 12b ・ ・Bottom frame, center of imprint, film size, light source, example of imprinted data and more

Claims (2)

[Claims] (1) It has a tungsten lamp that is a light source, and a light shielding body that is disposed in the optical path from the light source to the film and blocks a part of the light emitted by the light source, and corresponds to the light shielding shape of the light shielding body. What is claimed is: 1. A data imprinting device for a camera for imprinting data onto a film, the data imprinting device for a camera having a plurality of light sources, light shielding bodies, and optical paths, each of which is arranged in parallel. (2) The data imprinting device for a camera according to claim 1, characterized in that an optical filter is provided in at least one of the optical paths.