INFRA-RED DIFFRACTIVE OPTICS APPLICABLE TO A LASER TARGET DESIGNATION SYSTEM
Assignee
THOMSON-CSF
Filed
Jul 6, 1988
Granted
Jul 16, 1996
Location
ORSAY FR
Abstract
The infra-red diffractive optical lens will remedy chromatism faults and offer excellent compactness; in addition, it does not call for a cooling device. It comprises a first convergent lens made of a material corresponding to the operational infra-red band width considered and a second convergent lens formed by a surface hologram. This hologram is obtained by accurate machining of one of the diopters of the first convergent lens according to machining data optimized by digital calculations. The first lens is preferably made of zinc sulfide. This system can operate simultaneously in the 8 to 12 microns infra-red band and the 1.06 microns laser channel.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 28, 1988
Rescinded
Oct 11, 1995
Duration
6 years, 10 months
Inventor
- 1JEAN B. MIGOZZI
Record Details
- Patent number
- US 5537245
- Application
- 07220619
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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