Device for detecting an object including a light-sensitive detec

Details Device for detecting an object including a light-sensitive detec Device for detecting an object including a light-sensitive detec

1991-10-11

1993-03-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250221, 2502033, H01J 4014

Patent

active

051966891

ABSTRACT:
A device for detecting an object by detecting an infrared ray emitted from a moving object. The device includes a plurality of light receiving elements, each being disposed so as to receive infrared rays at a predetermined directional optical angle, and the position of and distance to the object is detected based on detection results by the respective light receiving elements. The moving speed and acceleration of the object are also detected from detection results by the respective light receiving elements, taking time-varying factors into consideration.

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patent: 5023440 (1991-06-01), Kuppenheimer, Jr.
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