1977-06-16
1978-05-09
Hix, L. T.
G03B 1724
Patent
active
040890180
ABSTRACT:
A photographic camera having a focal plane shutter is provided with a data recording device for recording on the film the photographing date or the like. The data recording device consists of a data carrier carrying thereon data representing characters which is operable from outside of the camera to select the data to be recorded, a light source for illuminating the data carrier, and an optical system for projecting an image of the data representing characters onto the film. The optical system includes a light reflecting prism which reflects the light from the data carrier toward the film. The prism is inserted into the optical path of the objective of the camera between the focal plane shutter and the film only when the data recording device is operated. With this arrangement, the data can be recorded while the shutter is closed, and accordingly, the quality of the image of the data recorded is not affected by the shutter speed.
REFERENCES:
patent: 4001850 (1977-01-01), Fujita
Fuji Photo Optical Co., Ltd.
Gellner M. L.
Hix L. T,.
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