Light curtain system with individual beam indicators and method

Details Light curtain system with individual beam indicators and method Light curtain system with individual beam indicators and method

1992-11-19

1994-04-12

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

250221, 340540, 340691, G08B 1318, G08B 2900

Patent

active

053029429

ABSTRACT:
A light curtain system and method of operation includes a control circuit having visible light indicators positioned adjacent channels of individual light beams established across a guard zone. The light beams are transmitted along a plurality of parallel channels between a transmitter bar and receive bar. The control circuit operates to sense when one or more beams are blocked by the intrusion of an opaque object. The circuit responds by operating visible light LEDs which are positioned adjacent the channels of the blocked beams. The visible light provides continuous feedback to the machine operator as to the condition of the guard zone. The visible light indicators are also used to facilitate alignment of the transmitter and receiver bars.

REFERENCES:
patent: 2299798 (1942-10-01), Colson et al.
patent: 2900521 (1959-08-01), Eames
patent: 3704396 (1972-11-01), Macdonald
patent: 3746863 (1973-07-01), Pronovost
patent: 3805061 (1974-04-01), De Missimy et al.
patent: 3810148 (1974-04-01), Karsten et al.
patent: 4015122 (1977-03-01), Rubinstein
patent: 4266124 (1981-05-01), Weber
patent: 4749853 (1988-06-01), Salim
patent: 4763903 (1988-08-01), Goodwin et al.
patent: 4818866 (1989-04-01), Weber
patent: 5015840 (1991-05-01), Blau

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