Optical sensing device

Details Optical sensing device Optical sensing device

1992-12-18

1993-10-19

Willis, Davis L.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502221, 250561, G01V 904, G01N 2186

Patent

active

052548538

ABSTRACT:
An optical sensing device for detecting the presence of an object within a sensing volume such as a door-frame has at least one light source consisting of a light emitting diode and a light sensor. A cylindrical rod made of a transparent material and having a circular cross-section is associated with the light emitting diode and the light sensor to form the light emitted by the light emitting diode into an essentially sheet-like beam of light and to establish an essentially sheet-like field of view of the light sensor. The beam or beams of light and the field of view intersect to define the sensing volume at a predetermined distance from a surface positioned opposite of the sensing device.

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Description of SUNX Collision Prevention Sensor PX1 Series SUNX.
Leaflet-Sick Opto-Electronic.
Entwicklung Eines Fotoschalters Mit Enfernungmessung, SDS-Relais.

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