Eye protection system wherein a low power laser controls a high

Details Eye protection system wherein a low power laser controls a high Eye protection system wherein a low power laser controls a high

1997-07-02

1998-11-17

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250205, G05D 2500

Patent

active

058379967

ABSTRACT:
A system for preventing damage to the eyes of a person being within a certain distance from a high-power laser, including a device for ascertaining the absence of a person within this range, and a device for actuating the high power laser only if the results indicate that no such person is present in the specified range. There is also provided a method for eye protection against damage by high-output lasers, which comprises examining such a range with a low power laser or other similar device, harmless to a person's eyes within the specific range, and for actuating high power laser radiation only after a clear indication that no person is present within the dangerous range.

REFERENCES:
patent: 5091627 (1992-02-01), Kimura
patent: 5229593 (1993-07-01), Zato
patent: 5382785 (1995-01-01), Rink
patent: 5451765 (1995-09-01), Gerber

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