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In automatic focusing device for a camera in which the photographing lens of the camera is automatically focused on a closest object within the photographing field. An array of light detecting elements receives light reflected from a light emitting section by various objects within the photographing

In automatic focusing device for a camera in which the photographing lens of the camera is automatically focused on a closest object within the photographing field. An array of light detecting elements receives light reflected from a light emitting section by various objects within the photographing field. A logic circuit detects the output from the detector which represents the closest object in the field and positions the photographing lens of the camera accordingly.

대표청구항 ▼

An automatic focusing device for a camera, comprising: a range finder section comprising a light emitting section for applying light to objects to be photographed at predetermined spaced positions within a photographing field and a linear array of light detecting elements for producing output distan

An automatic focusing device for a camera, comprising: a range finder section comprising a light emitting section for applying light to objects to be photographed at predetermined spaced positions within a photographing field and a linear array of light detecting elements for producing output distance signals representing distances of said objects to an image pickup surface; means for directing light reflected from said objects onto corresponding ones of said light detecting elements; logic and memory means for detecting and storing among said distance signals only a distance signal corresponding to an object at a shortest distance among said objects; and a lens driving section, operating in response to said signal stored in said memory section, for positioning a photographing lens to a focusing position for said object at the shortest distance.