Segmented light curtain system and method

Details Segmented light curtain system and method Segmented light curtain system and method

1992-02-28

1993-03-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502221, G01V 902, G08B 1318

Patent

active

051986612

ABSTRACT:
A light curtain system for sensing the intrusion of objects into detection planes which define a protected zone. A plurality of light curtain segments are provided with each segment including spaced-apart transmitter and receiver heads. The transmitter and receiver heads are each connected in series by flexible cables which form a part of a control circuit. The series-connected segments permit the detection planes to be aligned in predetermined angular orientations as required by the particular application.

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patent: 5015840 (1991-05-01), Blau
patent: 5117221 (1992-05-01), Mishica, Jr.

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