Rangefinding device for use in a camera

Details Rangefinding device for use in a camera Rangefinding device for use in a camera

1995-08-10

1997-10-14

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

Triangulation ranging to a point with one projected beam

356 306, 356 307, 396 50, 396106, G01C 300, G03B 300

Patent

active

056777604

ABSTRACT:
A rangefinding device for use in a camera comprising a projection section for projecting a light beam emitted by a light source through a projection lens to an object, a light pickup section disposed diagonally opposite from the projection section that picks up, on its light pickup element, light reflected off the object, two-dimensionally senses the light, and outputs incident light position information, a CPU for computing the range to the object based on the output of the light pickup section and an attitude sensor section for sensing the orientation or attitude of the camera. In response to the output of the attitude sensor section, the CPU computes the range to the object based on the incident light position information in either the vertical direction or horizontal direction of the photographing frame, output by the light pickup section.

REFERENCES:
patent: 4710011 (1987-12-01), Ushiro
patent: 5122827 (1992-06-01), Saegusa et al.
patent: 5239333 (1993-08-01), Takagi
patent: 5434639 (1995-07-01), Kusaka
patent: 5499074 (1996-03-01), Ohsawa et al.

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