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Class Information
Number: 250/225
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Polarizing
Description: Subject matter having a polarizer in the optical path between light source and photocell.


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

Patent Number Title Of Patent Date Issued
7619736 Apparatus and method for obtaining sample information by detecting electromagnetic wave Nov. 17, 2009
7586083 Laser sensor apparatus and method for detecting transmission shaft torque Sep. 8, 2009
7582857 Sensor and polarimetric filters for real-time extraction of polarimetric information at the focal plane Sep. 1, 2009
7582230 Liquid crystal display and colour filter with improved transparency for green light Sep. 1, 2009
7576313 Light source device and image display device Aug. 18, 2009
7570426 Apparatus and system for wide angle narrow-band optical detection in daylight Aug. 4, 2009
7535640 Imaging system for emulation of a high aperture scanning system May. 19, 2009
7534990 Compact optical delay devices May. 19, 2009
7528360 Method and device for stabilizing the state of polarization of optical radiation May. 5, 2009
7504641 Polarisation fluorometer Mar. 17, 2009
7498561 Arrangement for the detection of illumination radiation in a laser scanning microscope Mar. 3, 2009
7482573 Optical head, optical reproduction apparatus and optical record and reproduction apparatus Jan. 27, 2009
7449672 Conversion of quantum information from one photonic representation to another photonic representation Nov. 11, 2008
7411675 Optical rotation angle measuring apparatus Aug. 12, 2008
7405883 Optical component and method of manufacture of optical component Jul. 29, 2008
7391013 Scanning beam device with detector assembly Jun. 24, 2008
7375889 Apparatus and method for controlling polarization in an optical communications medium May. 20, 2008
7373059 Compact, single chip-based, entangled polarization-state photon sources and methods for generating photons in entangled polarization states May. 13, 2008
7369234 Method of performing optical measurement on a sample May. 6, 2008
7361884 Polarization independent optical isolator and optical transmitting/receiving apparatus Apr. 22, 2008
7358470 Optical pickup Apr. 15, 2008
7335873 Light condensing method and light condenser as well as near-field optical microscope and storage device formed by applying the same Feb. 26, 2008
7335874 Method and apparatus for generating a circularly polarized illumination beam Feb. 26, 2008
7330259 Optical measurements of patterned articles Feb. 12, 2008
7312924 Polarizing multiplexer and methods for intra-oral scanning Dec. 25, 2007
7304294 Reflective encoder with reduced background noise Dec. 4, 2007
7301163 Lateral shift measurement using an optical technique Nov. 27, 2007
7301138 Method and apparatus for dual polarization imaging Nov. 27, 2007
7301649 System for scatterometric measurements and applications Nov. 27, 2007
7291829 Light intensity detector Nov. 6, 2007
7285767 Methods and apparatus for inspecting an object Oct. 23, 2007
7282695 Active search sensor and a method of detection using non-specular reflections Oct. 16, 2007
7268342 Determination of optical properties of a device under test in both directions in transmission and in reflection Sep. 11, 2007
7268875 Method and apparatus for optically measuring absolute displacement Sep. 11, 2007
7262380 Determination of characteristics of material Aug. 28, 2007
7259844 High throughput darkfield/brightfield wafer inspection system using advanced optical techniques Aug. 21, 2007
7253901 Laser-based cleaning device for film analysis tool Aug. 7, 2007
7220954 Quantum state transfer between matter and light May. 22, 2007
7220978 System and method for detecting defects in semiconductor wafers May. 22, 2007
7211812 Entangled photon pair generating apparatus May. 1, 2007
7209232 Device for ellipsometric two-dimensional display of a sample, display method and ellipsometric measurement method with spatial resolution Apr. 24, 2007
7202951 Laser-based cleaning device for film analysis tool Apr. 10, 2007
7189961 Scanning beam device with detector assembly Mar. 13, 2007
7186968 Polarization sensitive solid state image sensor including integrated photodetector and polarizing assembly and associated methods Mar. 6, 2007
7180051 Polarization state detecting system, light source, and exposure apparatus Feb. 20, 2007
7164145 Measuring fiber orientation by detecting dispersion of polarized light Jan. 16, 2007
7157687 Optical devices with folded optical path designs Jan. 2, 2007
7151632 Apparatus for production of an inhomogeneously polarized optical beam for use in illumination and a method thereof Dec. 19, 2006
7148468 Mirror angle measurement and servo control apparatus for holographic digital data storage system Dec. 12, 2006
7126106 Quantum computer and quantum computation method Oct. 24, 2006

1 2 3 4 5 6 7 8 9 10 11


 
 
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