Patent
1986-01-17
1987-10-06
Griffin, Donald A.
354222, G03B 1314, G03B 1310
Patent
active
046979018
ABSTRACT:
A camera comprises a photo-taking lens system having an optic axis and movable along the optic axis for focusing, a view finder means including an objective having an optic axis different from the optic axis of the photo-taking lens system, first view field indicating means provided to indicate the range of a photographing picture plane obtained when an object to be photographed lying in a predetermined distance range is photographed within an observation view field formed through the objective, and second view field indicating means provided to indicate the range of a photographing picture plane obtained when an object to be photographed lying outside the predetermined distance range is photographed within the observation view field, and preventing means responsive to movement of the photo-taking lens system to prevent viewing of at least a part of the second view field indicating means when the photo-taking lens system is focused to the object to be photographed lying in the predetermined distance range.
REFERENCES:
patent: 2737844 (1956-03-01), Jerome et al.
patent: 3011385 (1961-12-01), Frost
patent: 3357328 (1967-12-01), Kinder et al.
patent: 3393623 (1968-07-01), Gutmann et al.
patent: 4400071 (1983-08-01), Tamura et al.
patent: 4478493 (1984-10-01), Yokota
patent: 4576458 (1986-03-01), Cho et al.
Wakabayashi Hiroshi
Wakamiya Koichi
Griffin Donald A.
Nippon Kogaku K. K.
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