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Class Information
Number: 359/494
Name: Optical: systems and elements > Polarization without modulation > Light polarization without any external input > By birefringent element
Description: Subject matter including an element having the property of dividing a ray or beam of energy into two polarized rays or beams (known as the ordinary and extraordinary rays), the directions of polarization being at right angles to each other.










Sub-classes under this class:

Class Number Class Name Patents
359/495 For beam deflection or splitting 665
359/496 Prisms 260
359/497 Using plural elements 593
359/500 With particular material or mounting structure 305


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

Patent Number Title Of Patent Date Issued
7876502 Optical film, polarizing plate and liquid crystal display Jan. 25, 2011
7859752 Optical module for adjusting a laser beam of a laser processing machine Dec. 28, 2010
7855834 Multilayered phase difference plate and projector Dec. 21, 2010
7852559 Diffusely-reflecting polarizer having nearly isotropic continuous phase Dec. 14, 2010
7848000 Birefringent spectral filter with wide field of view and associated communications method and apparatus Dec. 7, 2010
7841730 Light source device and crystal display device Nov. 30, 2010
7839569 Polarizing plate and liquid crystal display Nov. 23, 2010
7833593 High efficiency optical devices Nov. 16, 2010
7813039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid Oct. 12, 2010
7784949 Illuminator with switching and diffusing elements Aug. 31, 2010
7782532 Optical isolator device Aug. 24, 2010
7771842 1,4-benzodioxane sulfonic acid compound and use thereof as electron-acceptor material Aug. 10, 2010
7764415 High retardation-amplitude photoelastic modulator Jul. 27, 2010
7764427 Microlithography optical system Jul. 27, 2010
7764431 Multiple imaging arrangements for head mounted displays Jul. 27, 2010
7760431 Method of and apparatus for modifying polarity of light Jul. 20, 2010
7742046 Method, device, and program for producing elemental image array for three-dimensional image display Jun. 22, 2010
7738172 Structures and methods for reducing aberration in optical systems Jun. 15, 2010
7714857 Three-dimensional image display apparatus, method of distributing elemental images to the display apparatus, and method of displaying three-dimensional image on the display apparatus May. 11, 2010
7715099 Optical birefringence coronagraph May. 11, 2010
7679831 Projection objective of a microlithographic projection exposure apparatus Mar. 16, 2010
7679806 Method for making optical elements for microlithography, the lens systems obtained by the method and their uses Mar. 16, 2010
7671947 Optical film, optical compensation film, polarizing plate, liquid crystal display unit and self luminous display unit Mar. 2, 2010
7636196 Refractive boundary elements, devices, and materials Dec. 22, 2009
7633678 Optical element, polarizing element, lighting device, and liquid crystal display Dec. 15, 2009
7630134 Optical element, polarizing element, lighting device, and liquid crystal display Dec. 8, 2009
7607780 Projection-type 3-D image display using single projector Oct. 27, 2009
7605981 Display unit, display method and equipment using thereof Oct. 20, 2009
7602475 System and method for providing modified illumination intensity Oct. 13, 2009
7583440 Diffusely-reflecting polarizer having nearly isotropic continuous phase Sep. 1, 2009
7576913 Method for producing polarizing plate, polarizing plate, optical film, and image display Aug. 18, 2009
7573636 Systems for influencing laser beam polarization Aug. 11, 2009
7572013 Projection display Aug. 11, 2009
7551221 Camera apparatus having an optical low pass filter and image pickup apparatus having the same Jun. 23, 2009
7546039 Systems, devices, and methods for controlling outage probabilities Jun. 9, 2009
7541723 Backlight having a polarization separating element Jun. 2, 2009
7522340 Highly efficient 2D/3D switchable display apparatus Apr. 21, 2009
7511885 Methods for reducing polarization aberration in optical systems Mar. 31, 2009
7505204 Crystallization apparatus, crystallization method, and phase shifter Mar. 17, 2009
7492986 Apparatus and method for optical switching with liquid crystals and birefringent wedges Feb. 17, 2009
7492519 Refractive boundary elements, devices, and materials Feb. 17, 2009
7492517 Form birefringent grating structure, viewer, anticounterfeit security device, and method for making the same Feb. 17, 2009
7492516 Optical element, polarizing element, lighting device, and liquid crystal display Feb. 17, 2009
7486442 Polarizer protective film, polarizing plate, and visual display Feb. 3, 2009
7483121 Microlithograph system Jan. 27, 2009
7474380 Projection optical system, exposure apparatus, and device fabrication method Jan. 6, 2009
7466485 Switchable display apparatus Dec. 16, 2008
7466923 Polarization mode dispersion compensation Dec. 16, 2008
7459204 Modified copolyesters and improved multilayer reflective films Dec. 2, 2008
7460230 Deviation angle self compensating substantially achromatic retarder Dec. 2, 2008

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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