Camera incorporating real-image finder
AssigneeKonica Corporation
InventorsKatsumi Ohtsuka, Haruki Nakayama
Life of this patent
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Abstract
The present invention concerns a camera incorporating a real-image finder, having a structure more compact than ever. The camera includes an optical system; an erect-image optical system, having a reflecting surface, to receive a light bundle passed through the objective optical system; and an ocular optical system to receive the light bundle reflected from the reflecting surface of the erect-image optical system. In the camera, a rear end of the reflecting surface is located at a backward position with respect to a film conveyance surface and outside the film conveyance surface, and, a front end of the reflecting surface is located at a forward position with respect to the film conveyance surface and inside the film conveyance surface.
Claims29
A camera having a real-image finder, comprising:
- an objective optical system;
- an erect-image optical system, having a reflecting surface, to receive a light bundle passed through said objective optical system;
- and
- an ocular optical system to receive said light bundle reflected from said reflecting surface of said erect-image optical system;
- wherein a rear end of said reflecting surface is located at a backward position with respect to a film conveyance surface, and located outside said film conveyance surface, and, a front end of said reflecting surface is located at a forward position with respect to said film conveyance surface, and located inside said film conveyance surface.
A camera having a real-image finder, comprising:
- an objective optical system;
- an erect-image optical system, having a reflecting surface, to receive a light bundle passed through said objective optical system;
- and
- an ocular optical system to receive said light bundle reflected from said reflecting surface of said erect-image optical system;
- wherein a part of a film conveyance surface is arranged in a space between said reflecting surface and a body of said camera.
A camera, comprising:
- a real-image finder including an objective optical system, an ocular optical system and an erect-image optical system;
- and
- an information-displaying member for displaying information within a visual field of said real-image finder,
- wherein, in case that a region, occupied by said objective optical system, said ocular optical system and said erect-image optical system, is projected onto a plane perpendicular to an optical axis of said objective optical system and is surrounded by an imaginary rectangular one side of which is an vertical direction of said camera, at least a part of said information-displaying member is disposed in a region to which neither said objective optical system, said ocular optical system nor said erect-image optical system belongs.
Dependencies are inferred from the claim text.