Optical apparatus

Details Optical apparatus Optical apparatus

2007-11-27

2007-11-27

Koval, Melissa Jan (Department: 2862)

Photography

With exposure objective focusing means, focusing aid, or...

Optical detail with photoelement system

C348S333090, C348S345000, C359S618000

Reexamination Certificate

active

11168741

ABSTRACT:
A camera, in which it is possible to adjust the position of two mirrors easily for striking a balance between the focus detection performances in an optical viewfinder state and an electronic image display state. The optical apparatus includes a first mirror movable between a first position for an optical viewfinder and a second position for focus detection, a second mirror movable between a third position for focus detection and a fourth position where a light flux is not led to the second mirror, a first positioning member for positioning the first mirror at the second position, and a second positioning member for positioning the second mirror at the third position. The second positioning member is a member independent of the first positioning member.

REFERENCES:
patent: 4624542 (1986-11-01), Ikeno et al.
patent: 6183142 (2001-02-01), Sakamoto et al.
patent: 2005/0219401 (2005-10-01), Oikawa
patent: 2005/0219402 (2005-10-01), Noto
patent: 1 447 709 (2004-08-01), None
European Patent Office Action issued on Aug. 11, 2006 for European application No. 05 254 034.1-1234.

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