JPS6118732B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus that is capable of simultaneously monitoring light from two photographing lenses and separately photographing the light on a film.

In a conventional two-phenomenon photographing device, as shown in FIG. 3, when photographing the left and right sides of the film 1, one lens system 2 was attached to the side of the camera and the other lens system 3 was attached to the bottom. Therefore, it was not possible to visually confirm the two phenomena through the viewfinder 4.

In addition, in the same figure, 5 is a finer prism,
6 and 7 are mirrors, and conventionally there are 2 on the top and bottom of the film.
When photographing a phenomenon, due to the structure of the viewfinder placed inside the camera, it is difficult to place a shielding plate to separate the two phenomena on the top and bottom of the film, and the area of the viewfinder on the market is small. Therefore, it could not be visually confirmed through the window.

The present invention eliminates this problem, and by arranging the two phenomena on the left and right and providing two shielding plates adjacent to each other, they can be separated from each other, and the two phenomena can be observed simultaneously from the viewfinder. There are characteristics that can be used.

Examples thereof will be described below. In Fig. 1, reference numerals 11 and 12 are photographing lenses arranged in parallel, 13 is a prism for refracting the optical path of the lens 12, and 14 is a reflecting mirror arranged in front of the film 20, as shown in Fig. 2 during photographing. It is constructed so that it rises upwards. 15 is a shielding plate provided on the lower surface of this reflecting mirror 14, and 16 is a shielding plate provided on the base (bottom surface) 17 of the apparatus.

Note that when the reflecting mirror is lowered as shown in FIG. 1, the shielding plates 15 and 16 are overlapped, and the second
In the raised state as shown in the figure, the shielding plates 15 and 16 divide the space between the reflecting mirror 14 and the base 18 as if they were continuous. 18 is a rotation axis of the reflecting mirror 14. 19 is a prism for guiding light to the winder.

Next, the operation will be explained.

The light passing through the lens 11 is reflected by the reflecting mirror 14 and is applied to the viewfinder via the prism 19. Also, the light passing through the lens 12 is transmitted through the prism 1
3, the optical path is changed, the light is similarly reflected by the reflecting mirror 14, and is applied to the finder via the prism 19. In this way, the two light images passing through the lenses 11 and 12 can be monitored from the viewfinder.

Furthermore, in order to take a photograph in this state, the reflecting mirror 14 is rotated upward about the rotation axis 18 to bring it into the state shown in FIG. Then, the optical image from the lens 11 is projected onto a portion 20a of the film 20 facing one of the spaces divided by the shielding plates 15 and 16, and is recorded. Similarly, the light image from the lens 12 is projected onto a portion 20b of the film 20 facing the other space divided by the shielding plates 15 and 16, and recorded.

In this case, the shielding plates 15 and 16 can reliably prevent light that has passed through the lens 11 from entering the portion 15b and light that has passed through the lens 12 from entering the portion 15a.

As is clear from the above embodiments, according to the present invention, two phenomena can be monitored, and each can be divided and photographed simultaneously. Also, its configuration is simple.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a two-phenomenon imaging device according to an embodiment of the present invention, FIG. 2 is a perspective view of the main parts, and FIG. 3 is a block diagram of a conventional device. 11, 12... Photographing lens, 13... Prism, 14... Reflector, 15, 16... Shielding plate, 2
0...Film.

Claims (1)

[Claims] 1 Two photographic lenses arranged in parallel, 2 above
A prism that brings the light that has passed through one of the lenses closer to the light that has passed through the other lens, 2 above.
a reflector that guides the two lights to the viewfinder system path; a means for rotating the reflector during photography to divide the two lights into left and right halves on the same film; A two-phenomenon photographing device characterized in that two-phenomenon separation shielding plates fixed close to each other are provided.