Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1995-09-13
1996-07-30
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 401, 356 407, G01C 308
Patent
active
055417248
ABSTRACT:
An optical radar system for tracking a target object is provided. This radar system includes generally a light emitting unit for emitting light toward the target object and a light receiving unit for intercepting the light reflected from the target object. The light receiving unit includes a condenser lens arranged for capturing the reflected light and a light sensitive element arranged at a position offset from a focal point of the condenser lens by a preselected distance in an image forming space thereof to be exposed to the light propagated from the condenser lens for assuring a narrower detection range for a distant target object and a wider detection range for a close target object.
REFERENCES:
patent: 4674869 (1987-06-01), Pryor et al.
patent: 4968146 (1990-11-01), Heizmann et al.
Buczinski Stephen C.
Nippondenso Co. Ltd.
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