Optical: systems and elements – Having significant infrared or ultraviolet property – Lens – lens system or component
Patent
1997-01-23
2000-01-25
Spyrou, Cassandra
Optical: systems and elements
Having significant infrared or ultraviolet property
Lens, lens system or component
359354, 359357, G08B 1314
Patent
active
060184140
ABSTRACT:
An infrared lens assembly (16, 60 and 80) operative in the near and far infrared wavebands to focus infrared radiation at an image plane (15) of an infrared detector (18). The infrared lens assembly (16, 60 and 80) includes a focusing component (33, 63 and 83), a collecting component (37, 65 and 85) and a diffracting component (41, 67 and 87). The focusing component (33, 63 and 83) and the collecting component (37, 65 and 85) may be formed from high dispersion, low index material. The diffracting component (41, 67 and 87) may be used to correct color aberrations associated with an infrared waveband.
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U.S. Patent Application Serial No. 08/289,404, filed Aug. 12, 1994, "Durable Polomeric Optical Systems", Issuance Pending--Issue Fee Paid on Jan. 17, 1997.
Raytheon Company
Schuberg Darren E.
Spyrou Cassandra
LandOfFree
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