Beam splitter and light measuring device for camera

Details Beam splitter and light measuring device for camera Beam splitter and light measuring device for camera

1983-11-08

1986-05-27

Hix, L. T.

354406, 35016223, G03B 300

Patent

active

045912564

ABSTRACT:
A plural number of transparent plates are arranged in parallel, a relief type diffraction grating is formed on the surface of one of the transparent plates and both transparent plates are joined so to make a beam splitter which is used as the light measuring device of a camera.

REFERENCES:
patent: 4172646 (1979-10-01), Matsumoto
patent: 4352545 (1982-10-01), Uno et al.
patent: 4436398 (1984-03-01), Endo et al.
patent: 4443081 (1984-04-01), Suzuki
patent: 4445764 (1984-05-01), Matsumura

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