Optical: systems and elements – Prism – With reflecting surface
Patent
1993-09-24
1994-09-06
Blankenship, Howard B.
Optical: systems and elements
Prism
With reflecting surface
35419512, 359705, G03B 1314
Patent
active
053452879
ABSTRACT:
A parallax and/or diopter correcting apparatus in a camera having a photographing optical system separate from a finder optical system, including a reflecting mirror provided in the finder optical system to change the direction of the optical axis thereof. A reflecting mirror driving mechanism is provided for rotating the reflecting mirror in a first rotational direction to move the segment of the finder optical system optical axis, located in front of the reflecting mirror, towards the optical axis of the photographing optical system, and/or for rotating the reflecting mirror in a second rotational direction perpendicular to the first rotational direction.
REFERENCES:
patent: 4924247 (1990-05-01), Suzuki et al.
patent: 4936664 (1990-06-01), Haraguchi et al.
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 5012273 (1991-04-01), Nakamura et al.
patent: 5016032 (1991-05-01), Haraguchi et al.
patent: 5117247 (1992-05-01), Nakai et al.
English Abstract of Japanese Patent No. 1-147439.
English Abstract of Japanese Patent No. 62-284336.
Patent Abstracts of Japan, vol. 12, No. 456 (P-793) & JP-A 63 179 340.
Asahi Kogaku Kogyo Kabushiki Kaisha
Blankenship Howard B.
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