Optics: measuring and testing – Range or remote distance finding – Triangulation ranging to a point with one projected beam
Patent
1995-04-28
1997-07-01
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
Triangulation ranging to a point with one projected beam
2502016, G01C 300, G03B 300, G02B 704
Patent
active
056443854
ABSTRACT:
A distance measuring device includes a light emitting element which emits light toward an object to be distance measured. A distance to the object is computed based on photo-currents outputted from a semiconductor position sensitive light detector upon which the light reflected from the object is incident. Background light components coming from a background of the object is detected and canceled from the output obtained from the position sensitive light detector, and position information is outputted which is represented by temperature-dependent variables. Therefore, computation of the distance to the object is not affected by temperature.
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patent: 5136148 (1992-08-01), Nonaka
Buczinski Stephen C.
Hamamatsu Photonics K.K.
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