Camera having distance measuring apparatus
AssigneeOlympus Corporation
InventorNaoki Matsuo
Life of this patent
Estimating the term…
Abstract
A camera having a distance measuring apparatus according to the present invention includes a photo receiving unit receiving object images focused by photo-receiving lenses; a selecting unit selecting any one of distance-measuring area in a photographing plane; and a determining unit determining whether or not an extreme value exists in outputs from the photo receiving unit, in the distance-measuring area selected by the selecting unit. When the determining unit determines that no extreme value exists, the selecting unit selects a second distance-measuring area having outputs whose inclination orientation is opposite to that of the outputs from the photo receiving unit, in the initially-selected first distance-measuring area.
Claims25
A camera having a distance measuring apparatus which performs distance measuring of a plurality of distance-measuring areas in a photographing plane, comprising:
- photo-receiving lenses, each forming an object image;
- a photo receiving unit receiving the object images formed by the photo-receiving lenses;
- a computing unit computing data about object-to-camera distances on the plurality of distance-measuring areas on the basis of outputs of the photo receiving unit;
- a selecting unit selecting any one of the distance-measuring areas in the photographing plane on the basis of the computed results of the computing unit;
- and
- a determining unit determining whether or not an extreme value exists in outputs of the photo receiving unit, in the distance-measuring area selected by the selecting unit,
- wherein, when the determining unit determines that the extreme value does not exist, the selecting unit selects a second distance-measuring area different from the initially-selected first distance-measuring area.
A camera having a distance measuring apparatus which performs distance measuring of a plurality of distance-measuring areas in a photographing plane, comprising:
- photo-receiving lenses, each forming an object image;
- a photo receiving unit receiving the object images formed by the photo-receiving lenses;
- a computing unit computing data about object-to-camera distances of the plurality of distance-measuring areas on the basis of outputs of the photo receiving unit;
- a selecting unit selecting any one of the distance-measuring areas in the photographing plane on the basis of the computed results of the computing unit;
- a determining unit determining whether or not an extreme value exists in outputs of the photo receiving unit, in the distance-measuring area selected by the selecting unit, and
- a focusing unit adjusting the focus of a photographing optical system,
- wherein, when the determining unit determines that the extreme value does not exist, the selecting unit selects a second distance-measuring area having outputs whose inclination orientation is opposite to that of the outputs from the photo receiving unit in the initially-selected first distance-measuring area.
A camera having a distance measuring apparatus which performs distance measuring of a plurality of distance-measuring areas in a photographing plane, comprising:
- photo-receiving lenses, each forming an object image;
- a photo receiving unit receiving the object images formed by the photo-receiving lenses;
- a computing unit computing data about object-to-camera distances in the plurality of distance-measuring areas on the basis of outputs of the photo receiving unit;
- a selecting unit selecting any one of the distance-measuring areas in the photographing plane on the basis of the computed results of the computing unit;
- a determining unit determining whether or not an extreme value exists in outputs of the photo receiving unit, in the distance-measuring area selected by the selecting unit, and
- a focusing unit adjusting the focus of a photographing optical system,
- wherein, when the determining unit determines that the extreme value does not exist, the selecting unit selects a second distance-measuring area having outputs whose average value is closest to that of the outputs from the photo receiving unit in the initially-selected first distance-measuring area.
Dependencies are inferred from the claim text.