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Browse by Category: Main > Optical & Optics
Class Information
Number: 356/366
Name: Optics: measuring and testing > By polarized light examination > With polariscopes
Description: Subject matter providing structure for examining articles or material and including a polarizer, a polarized light analyzer, a support usually for the article or material for examination between the polarizer and analyzer, and a visual viewer or photoelectric detector and indicator, the polarized light from the polarizer being transmitted through the article or material to the visual viewer or the photoelectric detector and indicator.


Sub-classes under this class:

Class Number Class Name Patents
356/367 Including polarimeters 181


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7369234 Method of performing optical measurement on a sample May. 6, 2008
7283234 Use of ellipsometry and surface plasmon resonance in monitoring thin film deposition or removal from a substrate surface Oct. 16, 2007
7262848 Fiber polarimeter, the use thereof, as well as polarimetric method Aug. 28, 2007
7239392 Polarization modulation photoreflectance characterization of semiconductor electronic interfaces Jul. 3, 2007
7227638 Calibration system and method for calibration of various types of polarimeters Jun. 5, 2007
7221454 Photopolarimeters and spectrophotopolarimaters with multiple diffraction gratings May. 22, 2007
7215469 Confocal microscope May. 8, 2007
7092092 Hand-carried LED polariscope Aug. 15, 2006
7038848 Confocal microscope May. 2, 2006
7034939 Calibration system and method for calibration of various types of polarimeters Apr. 25, 2006
6917427 Highly accurate calibration of polarimeters Jul. 12, 2005
6906800 Polarimeter using quantum well stacks separated by gratings Jun. 14, 2005
6856391 Method and apparatus for determining the polarization properties of light emitted, reflected or transmitted by a material using a laser scanning microscope Feb. 15, 2005
6847448 Polarization analyzing apparatus and method for polarization analysis Jan. 25, 2005
6816260 Fiber polarimeter, the use thereof, as well as polarimetric method Nov. 9, 2004
6747739 Observing techniques and its evaluation equipments of filler packing-structure for resin polymer composite filled with ceramic filler-powder Jun. 8, 2004
6621067 Polarization independent photodetector device and method of making same Sep. 16, 2003
6538754 Method of measuring thickness of cell gap of reflective type liquid crystal display Mar. 25, 2003
6501548 Retardance measurement method Dec. 31, 2002
6480277 Dual circular polarization modulation spectrometer Nov. 12, 2002
6323947 Angle of incidence accuracy in ultrathin dielectric layer ellipsometry measurement Nov. 27, 2001
6219139 Full field photoelastic stress analysis Apr. 17, 2001
6211957 In-line all-fiber polarimeter Apr. 3, 2001
6181421 Ellipsometer and polarimeter with zero-order plate compensator Jan. 30, 2001
6177995 Polarimeter and corresponding measuring method Jan. 23, 2001
6157448 Birefringence measurement optical system and high spatial resolution polarimetric apparatus Dec. 5, 2000
6084674 Parallelogram shaped optical retarder element for use in spectroscopic ellipsometer and polarimeter systems Jul. 4, 2000
6055053 Full field photoelastic stress analysis Apr. 25, 2000
6046811 Method and apparatus for determining electrical conductivity of a surface of an object Apr. 4, 2000
5929993 Total film retardance monitoring system, and method of use Jul. 27, 1999
5847831 Apparatus for monitoring the state of a liquid-crystal polarization Dec. 8, 1998
5841574 Multi-special decentered catadioptric optical system Nov. 24, 1998
5757671 Multi-detector ellipsometer and process of multi-detector ellipsometric measurement May. 26, 1998
5726755 Method and apparatus for viewing Mar. 10, 1998
5661560 Elliptical light measuring method Aug. 26, 1997
5621528 Method and dichrograph for measurement of circular dichroism, optical rotation and absorption spectra Apr. 15, 1997
5615038 Scanning optical device with aberration compensation feature Mar. 25, 1997
5517309 Tool for analyzing a polarization state of a light beam May. 14, 1996
5457536 Polarization modulation laser scanning microscopy Oct. 10, 1995
5440390 Optical fiber polarimeter Aug. 8, 1995
5424834 Optical displacement sensor for measurement of shape and coarseness of a target workpiece surface Jun. 13, 1995
5408321 Apparatus for measurement of specific dichroism of sheet materials Apr. 18, 1995
5311284 Method of measuring optical characteristics of thin film and apparatus therefor May. 10, 1994
5305090 Birefringent inspection polarscope Apr. 19, 1994
5298973 Phase difference controller and method for controlling phase difference Mar. 29, 1994
5269937 HPLC light scattering detector for biopolymers Dec. 14, 1993
5250186 HPLC light scattering detector for biopolymers Oct. 5, 1993
5038030 Surface identification for back-coated magnetic recording medium Aug. 6, 1991
5012101 Optical apparatus and method Apr. 30, 1991
4904085 Polarimetric fiber optic sensor testing apparatus Feb. 27, 1990

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