Zone sensing apparatus

Details Zone sensing apparatus Zone sensing apparatus

1982-03-05

1985-07-16

Buczinski, S. C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

354403, G01C 310, G03B 708

Patent

active

045293040

ABSTRACT:
The disclosed apparatus determines optically whether an object is located within a first range of distances from the apparatus or a second range of distances from the apparatus. A radiation projecting arrangement projects a beam towards the object and a receiving arrangement disposed a predetermined distance transverse to the object direction receives the radiation reflected from the object. A pair of radiation sensors in the receiving arrangement each produce an electrical output corresponding to the received radiation. A circuit responds to the outputs of the sensors to determine whether the object is located within a first range or a second range. The circuit arrangement connects the radiation sensors so as to subtract their outputs, and one of the sensors is provided with a more extensive radiation receiving area than the other. This extends one of the range of distances.

REFERENCES:
patent: 3736057 (1973-05-01), Harvey
patent: 3759614 (1973-09-01), Harvey
patent: 3813679 (1974-05-01), Hasegawa et al.
patent: 3820129 (1974-06-01), Hosoe et al.
patent: 3936187 (1976-02-01), Momose
patent: 4322141 (1982-03-01), Tominaga

Affiliated with

Also associated with

Rating

Zone sensing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zone sensing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zone sensing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1733449