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Class Information
Number: 362/339
Name: Illumination > Light modifier > Refractor > Prismatic type
Description: Subject matter wherein the intersection of one of the opposed surfaces with a transverse plane includes a plurality of regularly occurring and regularly shaped convexities each comprised of at least two straight lines joined at an angle.










Sub-classes under this class:

Class Number Class Name Patents
362/340 Curved main surface 121


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

Patent Number Title Of Patent Date Issued
8704973 Optical sheet, backlight unit and liquid crystal display device having the same Apr. 22, 2014
8692464 Light guiding plate, backlight module and display device Apr. 8, 2014
8670088 Optical sheet comprising a base composed of a stack of transmissive sheets, and a back-light device and liquid crystal device incorporating the optical sheet Mar. 11, 2014
8668371 Light redirecting films having a pattern of dome-shaped optical elements Mar. 11, 2014
8628221 Lamp Jan. 14, 2014
8613533 Optical sheet and light emitting device package having the same Dec. 24, 2013
8596831 Light beam controlling member and optical device including light beam controlling member Dec. 3, 2013
8596818 Optical member and display device having the same Dec. 3, 2013
8580372 Optical film Nov. 12, 2013
8550668 Light control member with intersecting groups of parallel prisms, and light-emitting device using such member Oct. 8, 2013
8553175 Optical sheet having irregularity portions, backlight device with optical sheet, and liquid crystal display device including a backlight device with optical sheet Oct. 8, 2013
8545062 Light uniformization structure and light emitting module Oct. 1, 2013
8540376 Projector Sep. 24, 2013
8529116 Light guide plate and light source module Sep. 10, 2013
8523405 Two-color mixing LED illuminating device Sep. 3, 2013
8517573 Moire reducing optical substrates with irregular prism structures Aug. 27, 2013
8491125 Lighting device and projection type display apparatus including the same Jul. 23, 2013
8480260 Stage light fitting for making light effects Jul. 9, 2013
8475004 Optical sheet, light-emitting device, and method for manufacturing optical sheet Jul. 2, 2013
8469579 Optical plate with micro-structures and backlight module using same Jun. 25, 2013
8469550 Optical sky-sun diffuser Jun. 25, 2013
8459860 Light flux controlling member, light-emitting device and lighting device Jun. 11, 2013
8454188 In-roadway warning light apparatus with moisture protection Jun. 4, 2013
8454206 Surface light source device Jun. 4, 2013
8425069 Lighting device, display device and television receiver Apr. 23, 2013
8414162 Light guide and light-output device Apr. 9, 2013
8403539 Light guide for improving device lighting Mar. 26, 2013
8398274 Light redirecting films including intersecting optical elements with flat and curved surfaces Mar. 19, 2013
8401741 Headlamp in an automobile Mar. 19, 2013
8400714 Systems, methods, and apparatus for a light reflector Mar. 19, 2013
8393758 Laser light source device Mar. 12, 2013
8369678 Optical devices for guiding illumination Feb. 5, 2013
8367186 Luminance enhancement optical substrates with optical defect masking structures Feb. 5, 2013
8366309 Light guide plate having lateral optical structures and backlight module having the light guide plate Feb. 5, 2013
8354806 Scanning collimation of light via flat panel lamp Jan. 15, 2013
8348473 Illumination optical system Jan. 8, 2013
8322888 Through-the-lens illuminator for optical comparator Dec. 4, 2012
8317368 Light redirecting films including intersecting optical elements with flat and curved surfaces Nov. 27, 2012
8297802 Optical film having linear protrusions with inwardly curved ridges and back light module with the optical film Oct. 30, 2012
8292467 Illumination device comprising a light guide Oct. 23, 2012
8256932 Light diffusion plate and backlight module using the same Sep. 4, 2012
8251565 Illumination device and display device Aug. 28, 2012
8246188 Illuminating device and display unit Aug. 21, 2012
8246220 LED array systems Aug. 21, 2012
8193703 Organic light emitting diode display that directs reflected light to improve visibility Jun. 5, 2012
8194170 Axicon lens array Jun. 5, 2012
8174640 Illumination apparatus and liquid crystal display apparatus May. 8, 2012
8164738 Illumination optical system, exposure apparatus, and device manufacturing method Apr. 24, 2012
8157429 Optical sheet having offset condensing and reflecting elements and display device having the same Apr. 17, 2012
8113705 Optical plate, backlight assembly and display device including the same Feb. 14, 2012

1 2 3 4 5 6 7 8 9 10










 
 
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