DUAL LIGHT VALVE SYSTEM WITH SELECTIVE DECOUPLING OF LIGHT VALVES
Assignee
HUGHES AIRCRAFT COMPANY, LOS ANGELES, CALIFORNIA, A DE CORP.
Filed
Jul 10, 1987
Granted
May 12, 1992
Location
MALIBU CA US
Abstract
Apparatus for selectively limiting the response of an auxiliary liquid crystal light valve which is used in a dual liquid crystal light valve laser optics system for correcting inherent liquid crystal light valve distortion by isolating an atmospheric reference beam from the main laser beam in the auxiliary correction system. Two types of isolation are provided: dual bandwith and dual polarization. In the former, the response bandwidth of the auxiliary liquid crystal light valve is shifted to prevent overlap with the bandwidth of an atmospheric reference wavefront. In the dual polarization form of isolation, provision is made for rotating the polarization of only one of the two interacting beams.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 2, 1988
Rescinded
Mar 22, 1991
Duration
3 years, 1 month
Inventor
- 1THOMAS R. O'MEARA
Record Details
- Patent number
- US 5113282
- Application
- 07075693
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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