Single lens reflex camera
AssigneeMinolta Co., Ltd.
InventorsTakamasa Sakamoto, Junichi Tanii
Life of this patent
Estimating the term…
Abstract
A mirror device for a camera. The mirror device includes a main mirror that directs luminous flux entering the photographic optical path of the camera to a position outside of the photographic optical path. A sub-mirror directs luminous flux passing through a half-mirror forming part of the main mirror to a rangefinding optical unit. The main mirror and the sub-mirror are retractable to outside the photographic optical path. A sub-mirror holder holds the sub-mirror, and is supported by a body of the mirror device so as to be retractable.
Claims18
A mirror device for a camera, comprising:
- a main mirror for directing luminous flux entering the photographic optical path of the camera to a position outside of the photographic optical path;
- a sub-mirror for directing luminous flux passing through a half-mirror forming part of the main mirror to an optical unit, the main mirror and the sub-mirror being retractable to outside the photographic optical path;
- a sub-mirror holder that holds the sub-mirror, the sub-mirror holder being supported by a body of the mirror device so as to be retractable;
- and
- a retraction mechanism that retracts the main mirror and the sub-mirror in the same direction.
A mirror device for a camera, comprising:
- a first mirror, at least a portion of the first mirror being a half-mirror, the first mirror for reflecting light toward a side of the camera and for passing the light through the half-mirror to a second mirror, the first mirror being rotatable about a first shaft mounted to a body, the second mirror being rotatable about a second shaft mounted to the body, the first shaft being spaced from the second shaft;
- and
- means for retracting the first mirror and the second mirror in the same direction.
Dependencies are inferred from the claim text.