Photography – Having camera indicator – Having display in viewfinder
Reexamination Certificate
2006-06-02
2009-11-10
Perkey, W B (Department: 2862)
Photography
Having camera indicator
Having display in viewfinder
C396S373000, C396S383000, C396S384000, C359S836000, C348S346000
Reexamination Certificate
active
07616884
ABSTRACT:
In a viewfinder for a single lens reflex camera, in which a focused image of an object formed on a ground glass by a photographing lens is transmitted to an ocular optical system through a pentagonal prism or a pentagonal mirror and an information image displayed on an indication surface of an indication block is transmitted to the pentagonal prism or pentagonal mirror, through an indication prism, so that the object image and the information image are indicated in the finder view field of the ocular optical system, the indication surface of the indicator is inclined with respect to a direction perpendicular to an incident surface of the image-erecting optical member toward the incident surface, and an angle between the indication surface of the indicator and the incident surface of the image-erecting optical member is smaller than 90°.
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A drawing labeled as “Figure 10” that appeared in the May 1990 issue of Shashin-Kogyo (Photographic Industry).
A drawing labeled as “Figure 16” that appeared in the Sep. 1991 issue of Shashin-Kogyo (Photographic Industry).
A drawing labeled as “Figure 5” that appeared in the Feb. 1999 issue of Shashin-Kogyo Photographic Industry).
Hosokawa Tetsuo
Kaneko Hidefumi
Greenblum & Bernstein P.L.C.
Hoya Corporation
Perkey W B
Smith Linda B
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