US Patent No: 4,512,638

Number of patents in Portfolio can not be more than 2000

Wire grid polarizer

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Abstract

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An infrared wire grid polarizer is fabricated on an infrared transmissive substrate and consists of alternating transmissive and conductive zones disposed thereon. These polarizers are particularly well suited for use with acoustic-optic tunable filters and can be employed as input and output polarizers therewith. A method of manufacturing a wire grid polarizer with at least 4000 conductors per millimeter is disclosed. The infrared transmissive substrate is selected from the group consisting of silicon crystal and gallium arsenide crystal.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ROSEMOUNT ANALYTICAL INC.LAHABRA, CA130

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sriram, Sambamurthy Wilkins, PA 1 59
Steinbruegge, Kenneth Murrysville, PA 1 59
Supertzi, Emmanuel Oakland, PA 1 59

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HUGHES ELECTRONICS CORPORATION (1)
4,289,381 High selectivity thin film polarizer 66 1979

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
MOXTEK, INC. (27)
6,208,463 Polarizer apparatus for producing a generally polarized beam of light 75 1998
6,108,131 Polarizer apparatus for producing a generally polarized beam of light 64 1998
6,122,103 Broadband wire grid polarizer for the visible spectrum 236 1999
6,234,634 Image projection system with a polarizing beam splitter 73 1999
6,243,199 Broad band wire grid polarizing beam splitter for use in the visible wavelength region 80 1999
6,288,840 Imbedded wire grid polarizer for the visible spectrum 137 2000
6,452,724 Polarizer apparatus for producing a generally polarized beam of light 33 2000
6,532,111 Wire grid polarizer 40 2001
6,447,120 Image projection system with a polarizing beam splitter 47 2001
6,714,350 Double sided wire grid polarizer 21 2001
6,710,921 Polarizer apparatus for producing a generally polarized beam of light 16 2002
6,785,050 Corrosion resistant wire-grid polarizer and method of fabrication 25 2002
6,666,556 Image projection system with a polarizing beam splitter 22 2002
6,665,119 Wire grid polarizer 57 2002
6,788,461 Wire grid polarizer 24 2003
6,844,971 Double sided wire grid polarizer 17 2003
7,375,887 Method and apparatus for correcting a visible light beam using a wire-grid polarizer 17 2004
7,570,424 Multilayer wire-grid polarizer 9 2004
7,306,338 Image projection system with a polarizing beam splitter 4 2005
7,800,823 Polarization device to polarize and further control light 5 2006
7,630,133 Inorganic, dielectric, grid polarizer and non-zero order diffraction grating 11 2007
7,789,515 Projection device with a folded optical path and wire-grid polarizer 3 2007
7,961,393 Selectively absorptive wire-grid polarizer 2 2007
7,813,039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 5 2009
8,248,696 Nano fractal diffuser 0 2009
8,027,087 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 5 2010
8,611,007 Fine pitch wire grid polarizer 0 2011
 
RAVENBRICK, LLC (10)
7,768,693 Thermally switched optical downconverting filter 11 2008
7,755,829 Thermally switched reflective optical shutter 9 2008
8,169,685 Thermally switched absorptive window shutter 5 2008
8,634,137 Glare management of reflective and thermoreflective surfaces 0 2009
8,665,414 Methods for fabricating thermochromic filters 0 2009
8,284,336 Thermally switched optical filter incorporating a guest-host architecture 4 2010
8,072,672 Thermally switched reflective optical shutter 5 2010
8,076,661 Thermally switched optical downconverting filter 5 2010
8,643,795 Thermally switched optical filter incorporating a refractive optical structure 0 2010
8,593,581 Thermally switched optical downconverting filter 0 2011
 
ASML NETHERLANDS B.V. (3)
6,943,941 Stationary and dynamic radial transverse electric polarizer for high numerical aperture systems 23 2003
7,221,501 Stationary and dynamic radial transverse electric polarizer for high numerical aperture systems 13 2005
7,511,884 Stationary and dynamic radial transverse electric polarizer for high numerical aperture systems 7 2005
 
RICOH COMPANY, LTD. (2)
5,939,733 Compound semiconductor device having a group III-V compound semiconductor layer containing therein T1 and As 35 1997
5,991,075 Light polarizer and method of producing the light polarizer 24 1997
 
SERIOUS ENERGY, INC. (2)
7,973,998 Temperature activated optical films 1 2008
8,102,478 Windows with electrically controllable transmission and reflection 0 2009
 
SMARTERSHADE, INC. (2)
8,310,757 Wire grid polarizers in window shading applications and varying thickness wave retarders 0 2008
8,508,681 Variable transmission window 0 2011
 
SONY CORPORATION (2)
7,184,115 Display apparatus with two polarization compensators 3 2005
7,221,420 Display with a wire grid polarizing beamsplitter 14 2006
 
3M INNOVATIVE PROPERTIES COMPANY (1)
6,391,528 Methods of making wire grid optical elements by preferential deposition of material on a substrate 11 2000
 
Amorphous Materials, Inc. (1)
5,194,985 Protected airborne window for infrared radiation and method of making same 12 1992
 
CORNING INCORPORATED (1)
7,113,335 Grid polarizer with suppressed reflectivity 30 2003
 
CRYSTAL TECHNOLOGY, INC. (1)
7,595,929 Grooved backside acoustic termination of acousto-optic devices 0 2007
 
GENTEC ELECTRO-OPTIQUE INC. (1)
5,323,267 High power laser beam sampler 3 1992
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
8,535,544 Structure and method to form nanopore 0 2010
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
6,511,183 Digital image projector with oriented fixed-polarization-axis polarizing beamsplitter 31 2001
 
LIGHTSMYTH TECHNOLOGIES, INC. (1)
8,593,732 Partially metallized total internal reflection immersion grating 0 2011
 
SHANGHAI LEXVU OPTO MICROELECTRONICS TECHNOLOGY CO., LTD. (1)
8,467,128 Polarizing cube and method of fabricating the same 0 2009
 
Westinghouse Electric Corp. (1)
4,602,342 Acousto-optic tunable filter 27 1983
 
Other [Check patent profile for assignment information] (1)
8,699,114 Multifunctional building component 0 2011