Advanced eye or sensor protection and high speed variable optica

Details Advanced eye or sensor protection and high speed variable optica Advanced eye or sensor protection and high speed variable optica

1992-02-14

1993-10-19

Moskowitz, Nelson

Optical: systems and elements

Light control by opaque element or medium movable in or...

With rotating or pivoting element

359236, 250233, 2432, G02F 126, G02B 530

Patent

active

052551172

ABSTRACT:
In order to protect the eyes or other sensor, from light produced, e.g., by odern laser weapons which have extremely fast onset times and high power per pulse, a protective shutter device is provided which is based on the integrative property of such sensors. The sensor is shielded for a large proportion of the time and only exposed after a light detector associated with the protective device has assured a safe environment. The normal exposure provided is a series of rapid image-views that integrate over time within the sensor. In an eye goggles embodiment, clear vision is maintained and a fast-response variable-density "sunglass" is perceived by the wearer. Only one eye is exposed and thus at risk at any one time, and that eye only about 10% of the total time. A high-speed mechanical shutter controls the exposure experienced by the sensor.

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patent: 4279474 (1981-07-01), Belgorod
patent: 4462661 (1984-07-01), Witt
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patent: 4524271 (1985-06-01), Parker
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