Real time distance sensor

Details Real time distance sensor Real time distance sensor

1988-11-29

1991-05-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 1, 356 4, G01N 2186

Patent

active

050158686

ABSTRACT:
A real time distance sensor for measuring distance by calculating the position of image of reflected laser beams with an extremely high-speed, includes a detection module containing a light receiving lens, an infrared ray filter, a CCD sensor, a lens system, and a laser; and a processing module containing a comparator, a differentiator, a pulse shaping circuit, a T flip-flop, a counter, a latch circuit, a ROM for calculation of distance, and power control and a D/A converter wherein the lens system contains cylindrical form for maintaining the intensity of laser beams with the travel of the beams.

REFERENCES:
patent: 4668084 (1987-05-01), Suzuki et al.
patent: 4760419 (1988-07-01), Fujiwara et al.

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