Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1980-04-07
1982-08-24
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250221, G01V 904
Patent
active
043462936
ABSTRACT:
An optical electronic distance sensor utilizes a V-light barrier in which a light transmitter 11 transmits a substantially parallel light beam 14 at a defined angle and a light receiver 12 receives a substantially parallel light beam 15 at a defined angle and delivers an electrical output signal dependent on the intensity of the received light beam. The distance of the intersection of the transmitted and received light beam paths, i.e. the apex of the V, from the light transmitter and receiver defines the sensing distance of the light barrier and is adjusted by adjusting the separation of the light transmitter and receiver. For this purpose the light transmitter and receiver are displaceably mounted on a mounting rail. The distance sensor is particularly useful in indoor carparks for determining the presence or absence of a vehicle in a parking space.
REFERENCES:
patent: 2081134 (1937-05-01), Buckley
patent: 2369223 (1945-02-01), Ferger
patent: 2871370 (1959-01-01), Neubrech et al.
patent: 3137756 (1964-06-01), Gunther et al.
patent: 3516056 (1970-06-01), Matthews
Erwin Sick GmbH - Optik-Elektronik
Nelms David C.
LandOfFree
Optical electronic distance sensor with a parallel beam of light does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical electronic distance sensor with a parallel beam of light, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical electronic distance sensor with a parallel beam of light will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1438247