Optically activated exciplex shutter/attenuator

Details Optically activated exciplex shutter/attenuator Optically activated exciplex shutter/attenuator

1975-10-16

1976-09-21

Sikes, William L.

350312, G02F 136

Patent

active

039815617

ABSTRACT:
A device which provides rapid attenuation of incident light, the degree of ttenuation being proportional to the intensity of the light. This system can be used for eye or device protection in sunlight or other situations in which the illuminating source has a spectral output which includes radiation in the 300-400 nm spectral region. The shutter/attenuator can achieve its maximum extinction in less than 100 psec after being illuminated and returns to maximum transmission within 10 nsec after the light is extinguished.

REFERENCES:
patent: 3269267 (1966-08-01), Collins
patent: 3756692 (1973-09-01), Scott

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