Camera incorporating a focal-plane shutter
AssigneeKonica Corporation
InventorsJun Ikuyama, Taku Wagatsuma
Life of this patent
Estimating the term…
Abstract
There is described a camera incorporating a focal-plane shutter. The camera includes a lens, an image window having an aperture to bound a light coming through the lens in a plain perpendicular to an optical axis of the lens, a focal-plane shutter and a photometry sensor to receive the light reflected by the focal-plain shutter and detect an amount of the light reflected by the focal-plane shutter after coming through the lens. In the camera, the photometry sensor is located at an outside of the aperture and resides on a plane, which is parallel with the optical axis and includes a line which is parallel to a long-axis of the aperture and passes substantially a center of a short-axis of the aperture.
Claims12
A camera, comprising:
- a lens;
- an image window having an aperture to bound a light coming through said lens in a plane perpendicular to an optical axis of said lens;
- a focal-plane shutter;
- and
- a photometry sensor to receive said light reflected by said focal-plane shutter and detect an amount of said light reflected by said focal-plane shutter after coming through said lens, wherein said photometry sensor is located at an outside of said aperture and resides on a plane, which is parallel with said optical axis and includes a line which is parallel to a long-axis of said aperture and passes substantially a center of a short-axis of said aperture.
A camera, comprising:
- a lens;
- a shutter unit comprising a focal-plane shutter;
- and
- a photometry sensor to receive and detect an amount of a light reflected by said focal-plane shutter after coming through said lens, said photometry sensor is integrally arranged in said shutter unit.
A camera, comprising:
- a lens;
- a shutter unit comprising a focal-plane shutter;
- and
- a date projector to project a date on a film loaded in said camera, said date projector is integrally arranged in said shutter unit.
A camera, comprising:
- a lens;
- a focal-plane shutter;
- a X-switch signal sensor to detect a signal of a X-switch;
- and
- a controller to perform error jobs, when said X-switch signal sensor does not detect said signal within a predetermined time after activating a shutter release button.
A camera, comprising:
- a photographic lens;
- an aperture to bound a light coming through said photographic lens in a plain perpendicular to an optical axis of said lens;
- a focal-plane shutter;
- and
- a photometry means, wherein said camera performs a photometry by means of said photometry means which receives said light coming through said photographic lens and reflected from said focal-plane shutter, and said photometry means is arranged at substantially a center side position of a short-axis of said aperture, viewing from said photographic lens side.
Dependencies are inferred from the claim text.