Indicator with finder of single lens reflex camera

Details Indicator with finder of single lens reflex camera Indicator with finder of single lens reflex camera

1994-12-19

1997-02-18

Gray, David M.

Photography

Having camera indicator

Having display in viewfinder

396354, 396386, G03B 1912

Patent

active

056045549

ABSTRACT:
An indicator within a finder of a single lens reflex camera is provided with a simple construction. The indicator may include a mirror for reflecting light of an object transmitted through a photographing lens to form an object image onto a focusing plate, an finder optical system for viewing an image of the object formed on the focusing plate, a hollow-type pentagonal mirror, and a photographing information projector for projecting a plurality of light rays onto the focusing plate to form a photographing information image. The hollow type pentagonal mirror may include a pair of roof reflecting surfaces and a third reflecting surface for reflecting light, reflected by the pair of roof reflecting surfaces, toward an eyepiece optical system. The photographing information projector may be mounted in the vicinity of the pair of roof reflecting surfaces.

REFERENCES:
patent: 4101916 (1978-07-01), Gottschalk et al.
patent: 4171896 (1979-10-01), Sato et al.
patent: 4217050 (1980-08-01), Sato et al.
patent: 4289392 (1981-09-01), Kobori et al.
patent: 4297020 (1981-10-01), Yamada et al.
patent: 4376575 (1983-03-01), Someya et al.
patent: 4560264 (1985-12-01), Kitazawa et al.
patent: 4949118 (1990-08-01), Yamamoto et al.
patent: 4977425 (1990-12-01), Yamamoto et al.
patent: 5170206 (1992-12-01), Yamamoto et al.
patent: 5218393 (1993-06-01), Nakamura et al.
patent: 5218396 (1993-06-01), Morisawa
patent: 5223874 (1993-06-01), Kirigaya

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