Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1991-02-26
1992-11-10
Hannaher, Constantine
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
2502062, 356 4, 356141, 356152, G01S 1742
Patent
active
051626438
ABSTRACT:
The present invention is directed to a light detecting system for accurately determining the lateral position of a moving object, such as a vehicle, relative to a point or points in advance of the object's current position along a desired path. In a preferred embodiment, no moving parts are required to illuminate a field of view in advance of the object's travel. Further, by providing separate range and angle detection channels, relatively compact overall size is actually achieved. Separation of these two channels permits integrating charge-coupled devices (CCD's) to be used in the relatively slow angle detection channel, while a single detector (e.g., single photodiode) is used in the relatively fast, range detection channel.
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Hannaher Constantine
Imra America Inc.
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