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Browse by Category: Main > Optical & Optics
Class Information
Number: 353/20
Name: Optics: image projectors > Polarizer or interference filter
Description: Subject matter including a polarizing element or interference filter in the optical path to modify the light in said path.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
7118229 Illumination optical system and projector using the same Oct. 10, 2006
7119957 Polarization luminaire and projection display Oct. 10, 2006
7116478 Polarization beam splitter and optical system using the same, and image displaying apparatus, using the same Oct. 3, 2006
7114811 Optical assembly and projector Oct. 3, 2006
7114812 Illumination optical system and projection display optical system Oct. 3, 2006
7111942 Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein Sep. 26, 2006
7113343 Optical combining device Sep. 26, 2006
7108374 Image display device having a field lens Sep. 19, 2006
7104650 Image display device having a transmissive panel and an optical isolator Sep. 12, 2006
7101047 Projection display systems for light valves Sep. 5, 2006
7102822 High efficiency electromagnetic beam projector, and systems and methods for implementation thereof Sep. 5, 2006
7101049 Projector optics and projector with light source of LEDs Sep. 5, 2006
7097306 Projection device and liquid crystal panel unit for use in the projection device Aug. 29, 2006
7097309 Lighting system and compact projection system Aug. 29, 2006
7097308 Highly efficient projection system Aug. 29, 2006
RE39243 Optical element, polarization illumination device, and projector Aug. 22, 2006
7092159 Polarization recovery system for projection displays Aug. 15, 2006
7092056 Quarter wavelength plate and projection type video display device using the same Aug. 15, 2006
7090350 Optical projection system and method Aug. 15, 2006
7090351 Projection type image display apparatus Aug. 15, 2006
7086745 Optical component casing, optical device and projector Aug. 8, 2006
7086738 Optical projection system and method Aug. 8, 2006
7083283 Projector Aug. 1, 2006
7085051 Polarizer and optical device using the polarizer Aug. 1, 2006
7085035 Display apparatus with improved contrast ratio Aug. 1, 2006
7083282 Light recycling colored light source and method of using Aug. 1, 2006
7081997 High efficiency electromagnetic beam projector, and systems and methods for implementation thereof Jul. 25, 2006
7077525 Led-based flashlight Jul. 18, 2006
7077524 Sequential projection color display using multiple imaging panels Jul. 18, 2006
7073909 Optical systems and methods Jul. 11, 2006
7070280 Method for the generation of light of a given polarization state Jul. 4, 2006
7070281 Light source device and projection display Jul. 4, 2006
7070282 Projection type display apparatus Jul. 4, 2006
7072096 Uniform illumination system Jul. 4, 2006
7066600 Projection type image display apparatus Jun. 27, 2006
7066601 Projection display having an illumination module and an optical modulator Jun. 27, 2006
7061680 Adjusting contrast in an optical system Jun. 13, 2006
7059725 Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein Jun. 13, 2006
7059726 Projection apparatus with light source to output light into an integrating tunnel through a first and a second medium Jun. 13, 2006
7052140 Illumination device and projector equipped therewith May. 30, 2006
7052137 Spectral light division and recombining with incident face for light to be divided May. 30, 2006
7048380 Color switching projection apparatus with two liquid crystal panels May. 23, 2006
7048385 Projection display systems utilizing color scrolling and light emitting diodes May. 23, 2006
7048396 Arrangement for polarization of light May. 23, 2006
7044607 Image display device May. 16, 2006
7042530 Transfer apparatus May. 9, 2006
7040766 Illumination optical system and projection-type display apparatus May. 9, 2006
7040760 Liquid crystal projector May. 9, 2006
7036937 Illuminating device reusing polarized light May. 2, 2006
7033029 Interface tube with stepped configuration Apr. 25, 2006

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