Back to results
US 5,629,074 AGranted
Durable polymeric optical systems
AssigneeTexas Instruments Incorporated
InventorsPaul Klocek, Patrick A. Trotta
Life of this patent
Estimating the term…
Abstract
A polymeric infrared window (10) is described which comprises a sheet of polymeric material (14). Sheet 14 further may comprise a layer of molecular weave polymer material (34) fixed to a electromagnetic interference shield (32). In addition, a polymeric sheet (42) may be embossed with a binary defractive pattern (40) to create a polymeric defractive lens (38).
Claims34
An infrared optical device comprising:
- an infrared optical window, wherein said window comprises a sheet of polymeric material comprising a fabric of polymeric fibers and a matrix of polymeric material disposed in the interstices between the fibers, the matrix of polymeric material having a lower melting temperature than the polymeric fibers;
- and
- a frame coupled to the sheet of polymeric material and defining an opening through the frame spanned by the sheet of polymeric material, the frame operable to maintain the sheet of polymeric material in a taut state across the opening, the sheet of polymeric material substantially transmissive to infrared radiation passing through the opening.
An infrared optical device comprising:
- an infrared optical window, wherein said window comprises a sheet of polymeric material comprising a fabric of polymeric fibers consolidated into a continuous sheet of polymeric material;
- and
- a frame coupled to the sheet of polymeric material and defining an opening through the frame spanned by the sheet of polymeric material, the frame operable to maintain the sheet of polymeric material in a taut state across the opening, the sheet of polymeric material substantially transmissive to infrared radiation passing through the opening.
An infrared optical device comprising:
- an infrared lens, wherein said lens comprises a sheet of polymeric material comprising a fabric of polymeric fibers and a matrix of polymeric material disposed in the interstices between the fibers, the matrix of polymeric material having a lower melting point than the polymeric fibers;
- the sheet having first and second substantially parallel outer surfaces;
- and
- a diffractive pattern embossed on the first outer surface of the sheet of polymeric material such that the sheet of polymeric material functions as a diffractive lens focusing radiation passing through the sheet.
1 more element
An infrared optical device comprising:
- an infrared lens, wherein said lens comprises a sheet of polymeric material comprising a fabric of polymeric fibers consolidated into a continuous sheet of polymeric material;
- the sheet having two substantially parallel outer surfaces;
- and
- a diffractive pattern embossed on one of the outer surfaces of the sheet of polymeric material such that the sheet of polymeric material functions as a diffractive lens focusing radiation passing through the sheet.
1 more element
A method of manufacturing an infrared optical device comprising the steps of:
- forming an infrared optical window, wherein the forming comprises
- forming a sheet of polymeric material comprising a fabric of polymeric fibers and a matrix of polymeric material disposed in the interstices between the fibers, the matrix of polymeric material having a lower melting temperature than the polymeric fibers, the sheet of polymeric material substantially transmissive to infrared radiation passing through the opening;
- providing a frame, wherein the frame defines an opening;
- and
- coupling the sheet of polymeric material to the frame such that the sheet of polymeric material spans the opening and the frame operates to maintain the sheet of polymeric material in a taut state across the opening.
2 more elements
A method of manufacturing an infrared optical device comprising the steps of:
- forming an infrared optical window, wherein the forming comprises
- forming a sheet of polymeric material comprising a fabric of polymeric fibers consolidated into a continuous sheet of polymeric material, the sheet of polymeric material substantially transmissive to infrared radiation passing through the opening;
- providing a frame, wherein the frame defines an opening;
- and
- coupling the sheet of polymeric material to the frame such that the sheet of polymeric material spans the opening and the frame operates to maintain the sheet of polymeric material in a taut state across the opening.
2 more elements
Dependencies are inferred from the claim text.