Optics: measuring and testing – Range or remote distance finding – Triangulation ranging to a point with two or more projected...
Patent
1995-03-17
1998-02-10
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
Triangulation ranging to a point with two or more projected...
250214B, 356 301, 356 309, 356 31, G01C 300, G01C 500, H01J 4014
Patent
active
057174849
ABSTRACT:
A first light receiving portion and a second light receiving portion are provided on the upper surface of a moving body having driving wheels at an interval of a prescribed distance in a plane. The first light receiving portion and the second light receiving portion rotate around the axis in the vertical direction. On the other hand, a first light emitting portion and a second light emitting portion are provided on the side face of a station serving as a reference station at an interval of a prescribed distance in a plane. The first and second light receiving portions carry out sampling while rotating, so that the quantity of light reception is changed according to the directivities of the first and second light receiving portions. When the peaks of the directivities of the first and second light receiving portions match the direction of the first light emitting portion or the second light emitting portion, the quantity of light reception is maximized. Based on a rotational angle at which the quantity of light reception is maximized, the relative positions and the relative directions of the first and second light receiving portions with respect to the first and second light emitting portions are calculated.
REFERENCES:
patent: 2830487 (1958-04-01), Griffith
patent: 4328545 (1982-05-01), Halsall et al.
patent: 4688933 (1987-08-01), Lapeyre
patent: 4910464 (1990-03-01), Trett et al.
patent: 5039217 (1991-08-01), Maekawa et al.
Hamaguchi Takayuki
Kawagoe Nobukazu
Buczinski Stephen C.
Minolta Co. , Ltd.
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