Optical: systems and elements – Having significant infrared or ultraviolet property
Reexamination Certificate
2005-08-09
2005-08-09
Nguyen, Thong Q (Department: 2872)
Optical: systems and elements
Having significant infrared or ultraviolet property
C359S361000, C359S599000
Reexamination Certificate
active
06927899
ABSTRACT:
An optical element, such as a lens, is described that provides good transmission of radiation in the infrared portion of the electromagnetic spectrum, that can be molded using an injection molding technique. The optical element comprises a moldable matrix in which is distributed a plurality of particles. The material comprising the matrix is selected so as to have a relatively low absorption of radiation in the infrared portion of the electromagnetic spectrum, and the material comprising the particles is selected to have a relatively high transmissivity of radiation in the infrared portion of the electromagnetic spectrum, and both materials are selected so as to have approximately the same index of refraction. The optical element comprising the matrix/particle composite is formed to provide surfaces having the contours that are required to provide the desired optical properties.
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patent: 3722977 (1973-03-01), Sloane
patent: 5093735 (1992-03-01), Doane et al.
patent: 5206083 (1993-04-01), Raj et al.
patent: 6433102 (2002-08-01), Suzuki et al.
patent: 54-121754 (1979-09-01), None
Chapin & Huang LLC
Nguyen Thong Q
Optical Alchemy, Inc.
Thompson, Esq. James F.
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