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Browse by Category: Main > Optical & Optics
Class Information
Number: 353/84
Name: Optics: image projectors > Color filter
Description: Subject matter including means in the optical path to block or absorb particular wavelengths of light.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8711070 Display device and projector Apr. 29, 2014
8690355 Projecting apparatus and projecting equipment having a switching control valve switched between on and off positions Apr. 8, 2014
8690334 Projector, projection system, and control method of projector Apr. 8, 2014
8690343 Solid state light source and projection display apparatus having a fluorescence emission plate Apr. 8, 2014
8690344 Illumination system and projection device having a wheel plate including a wave band transforming area and a reflecting area Apr. 8, 2014
8690351 Light source device and projector Apr. 8, 2014
8684537 Light source unit and projector for controlling illumination cycles of respective light sources and rotation of a luminescent wheel Apr. 1, 2014
8684540 Optical projection apparatus Apr. 1, 2014
8678596 Illumination device and projector with fluorescent plate Mar. 25, 2014
8678597 Projection type display device Mar. 25, 2014
8672483 Method for adjusting color Mar. 18, 2014
8641206 Projector having a movable tilted aperture and cut filter Feb. 4, 2014
8616705 Light source device and projection display method Dec. 31, 2013
8616708 Fluorescent wheel, light source device and projector Dec. 31, 2013
8616710 Projector with luminescent wheel and control unit for equalizing illumination Dec. 31, 2013
8596795 Projector Dec. 3, 2013
8599320 Picture processing apparatus, processing method for use therewith, and program Dec. 3, 2013
8591041 Method for driving a high-pressure gas discharge lamp of a projector system Nov. 26, 2013
8591040 Projection device for architectural and entertainment lighting Nov. 26, 2013
8585211 Optical sensing apparatus, filter apparatus, and projector with anti-dust structure Nov. 19, 2013
8562146 Light source device and image display apparatus Oct. 22, 2013
8562141 Light-source apparatus and projector Oct. 22, 2013
8556432 Light source unit and projector Oct. 15, 2013
8550634 Light source module, projection apparatus, and method of controlling the same Oct. 8, 2013
8545029 Hybrid high pressure mercury arc lamp-laser light production system Oct. 1, 2013
8534841 3D optical projection device Sep. 17, 2013
8529073 Display device and display module Sep. 10, 2013
8529067 Projector apparatus and image synthesizing device for the same Sep. 10, 2013
8523367 Light source unit including a laser as a light source and a light emitting wheel with a diffusion layer opposite to the laser Sep. 3, 2013
8513893 High-pressure discharge lamp light-up device, high-pressure discharge lamp apparatus using same, projector using high-pressure discharge lamp apparatus, and light-up method for high-pressure d Aug. 20, 2013
8508672 System and method for improving video image sharpness Aug. 13, 2013
8506091 Illumination apparatus and projection apparatus Aug. 13, 2013
8506086 Device and method for the representation of body colours Aug. 13, 2013
8500289 Light source unit including a luminescent wheel that performs control to rotate or stop the wheel while light is emitted onto it and projector Aug. 6, 2013
8500290 Projection system Aug. 6, 2013
8496332 Illumination system and illumination control method Jul. 30, 2013
8496333 Illumination module having wavelength conversion unit, projection apparatus, and light source control method Jul. 30, 2013
8480234 Method and apparatus for light recapture and sequential channel illumination Jul. 9, 2013
8469520 Light source device and projection display apparatus Jun. 25, 2013
8469525 Projection-type display apparatus Jun. 25, 2013
8459796 Method and system for shaped glasses and viewing 3D images Jun. 11, 2013
8425042 Multi-segment optical retarder for creating 3D images Apr. 23, 2013
8425052 Illumination system, method and projection device for controlling light emitted during a spoke time period Apr. 23, 2013
8419188 Dichroic wedge stack light combining apparatus, system and method Apr. 16, 2013
8408708 Polarization modulation wheel Apr. 2, 2013
8403492 Light source device, video projector and video projection method Mar. 26, 2013
8403493 Projection apparatus and projection method for controlling emission of plural color light sources having different luminous efficiencies Mar. 26, 2013
8405900 Projection apparatus Mar. 26, 2013
8398263 Filter wheel Mar. 19, 2013
8393741 Light source system and projector Mar. 12, 2013

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