Single lens reflex camera

Details Single lens reflex camera Single lens reflex camera

1981-10-14

1983-04-26

Gonzales, John

G03B 1720, G03B 1912

Patent

active

043811450

ABSTRACT:
In the single lens reflex camera disclosed, an elongated entrance window extending across a plane through the roof ridge of a roof pentaprism, and a smaller entrance window more remote from the plane, form a pair of windows, one of which produces light emerging from data on the camera lens barrel, and the other from data at another camera location. A mirror turns light from one of the data transverse to the plane before it is introduced through one of the windows while light from the other of the data is introduced into the other window. The prism directs the lights to the lower portion of an ocular. In a preferred embodiment, the data turned by the mirror is from the lens barrel.

REFERENCES:
patent: 3800655 (1974-04-01), Uchida
patent: 3911457 (1975-10-01), Okuno
patent: 3962710 (1976-06-01), Okuno et al.
patent: 4053912 (1977-10-01), Okuno et al.
patent: 4118723 (1978-10-01), Yamazaki et al.
patent: 4131355 (1978-12-01), Kimura et al.

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