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Class Information
Number: 359/497
Name: Optical: systems and elements > Polarization without modulation > Light polarization without any external input > By birefringent element > Using plural elements
Description: Subject matter wherein beam polarization is achieved by multiple birefringent elements.










Sub-classes under this class:

Class Number Class Name Patents
359/498 Frequency filter or interference effects 202
359/499 Using compensation techniques 185


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

Patent Number Title Of Patent Date Issued
6002518 Phase-retardation based system for stereoscopic viewing micropolarized spatially-multiplexed images substantially free of visual-channel cross-talk and asymmetric image distortion Dec. 14, 1999
5999240 Optical retarder stack pair for transforming input light into polarization states having saturated color spectra Dec. 7, 1999
5986809 Polarization conversion element, polarization illuminator, display using the same illuminator, and projection type display Nov. 16, 1999
5986784 Adaptive polarization diversity detection scheme for coherent communications and interferometric fiber sensors Nov. 16, 1999
5982539 Optical device Nov. 9, 1999
5982541 High efficiency projection displays having thin film polarizing beam-splitters Nov. 9, 1999
5978136 Optical element, polarization illumination device, and projection display apparatus Nov. 2, 1999
5977478 Solar module Nov. 2, 1999
5974205 Compact two-by-n optical components based on birefringent walk-off crystals Oct. 26, 1999
5973835 Multilayer thin-film broad-band polarizing beam-splitter Oct. 26, 1999
5973832 High performance optical circulators Oct. 26, 1999
5953137 Linear conoscopic holography Sep. 14, 1999
5946116 1 X N digitally programmable optical routing switch Aug. 31, 1999
5930422 Optical circulator Jul. 27, 1999
5930038 Optical isolator with polarization dispersion and differential transverse deflection correction Jul. 27, 1999
5928801 Electroluminescent illumination system Jul. 27, 1999
5923470 Polarization beam splitter Jul. 13, 1999
5912766 Optical isolator Jun. 15, 1999
5905823 Polarization independent optical nonreciprocal circuit based on even mode to odd mode conversion May. 18, 1999
5903396 Intensified visual display May. 11, 1999
5903388 High efficiency electromagnetic beam projector and systems and method for implementation thereof May. 11, 1999
5900974 Backing plate for contrast enhancement of photolithographic images on transparent substrates and method of using same May. 4, 1999
5900977 Polarizing element including layer having alternating areas of birefringent and isotropic materials May. 4, 1999
5900976 Display system including a polarizing beam splitter May. 4, 1999
5888603 Stacked films birefringent device and method of making same Mar. 30, 1999
5872652 Optical isolator and optical part having heat-resistant anti-reflection coating Feb. 16, 1999
5872878 Partial optical circulators Feb. 16, 1999
5867315 Crystal optic lens and an optical system for an optical pickup device Feb. 2, 1999
5864428 Polarizing device Jan. 26, 1999
5828488 Reflective polarizer display Oct. 27, 1998
5825542 Diffusely reflecting multilayer polarizers and mirrors Oct. 20, 1998
5818626 Method and apparatus for optical isolation Oct. 6, 1998
5805336 Optical lens blank with polarizer aligned between plastic birefringent sheets Sep. 8, 1998
5774264 Polarization independent optical isolator Jun. 30, 1998
5768005 Multi-stage optical isolator Jun. 16, 1998
5768015 Optical isolator Jun. 16, 1998
5757547 High efficiency homogeneous polarization converter May. 26, 1998
5751480 Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit May. 12, 1998
5739855 Optical low-pass filtering Apr. 14, 1998
5737124 Polarizing splitter device and application to a system for illuminating a liquid-crystal screen Apr. 7, 1998
5734763 Compact two-by-n optical components based on bierfringent walk-off crystals Mar. 31, 1998
5726801 Reduced optical isolator module for a miniaturized laser diode assembly Mar. 10, 1998
5719702 Polarization-balanced beamsplitter Feb. 17, 1998
5715085 Optical filter Feb. 3, 1998
5715084 Reflection and refraction optical system and projection exposure apparatus using the same Feb. 3, 1998
5701201 Apparatus for scanning drum inner face and method of scanning therefor Dec. 23, 1997
5691830 Holographic optical system including waveplate and aliasing suppression filter Nov. 25, 1997
5691845 Optical isolator, optical isolator with fiber and method for making the same Nov. 25, 1997
5689368 Apparatus for scanning drum inner face and method of scanning therefor Nov. 18, 1997
5689359 Polarization independent optical isolator Nov. 18, 1997

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










 
 
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