Research/Patents/US 5348688
US 5348688Tier 3 — General Defense

OPTICAL POWER LIMITERS AND MATERIALS THEREIN

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE ARMY

Filed

Dec 17, 1984

Granted

Sep 20, 1994

Location

FORT WASHINGTON MD US

Abstract

A liquid crystal modified by the addition of an organic dye is used as a non-linear optical material in two devices which limit the optical radiations to sensitive photodetectors. One device uses the self-focusing induced in the crystal to disperse high-intensity optical radiation, the other uses the change of index of refraction of the crystal to effect total reflection of high-intensity radiation from a liquid crystal-linear optical material inter-face

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 2, 1986

Rescinded

Oct 12, 1993

Duration

7 years, 6 months

Inventor

  • 1EDWARD J. SHARP

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records