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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 12

Patent Number Title Of Patent Date Issued
8670124 Apparatus and method for converting sensor input signals into digital output signals Mar. 11, 2014
8664583 Nonlinear optical surface sensing with a single thermo-electric detector Mar. 4, 2014
8614415 Defect inspection method of fine structure object and defect inspection apparatus Dec. 24, 2013
8587780 Device for measuring the twist of a rotating shaft Nov. 19, 2013
8575539 Detection apparatus and method Nov. 5, 2013
8550348 Optoelectronic device Oct. 8, 2013
8547621 Laser light source, wavelength conversion laser light source and image display device Oct. 1, 2013
8537356 Opto-fluidic nanoparticle detection apparatus Sep. 17, 2013
8466408 Surface film for polarizing sheet and polarizing sheet using same Jun. 18, 2013
8462435 Imaging apparatus with light transmissive filter Jun. 11, 2013
8440989 Method and system for a light source assembly supporting direct coupling to an integrated circuit May. 14, 2013
8421000 Beam shaping without introducing divergence within a light beam Apr. 16, 2013
8411146 Single camera color and infrared polarimetric imaging Apr. 2, 2013
8395106 Optical semiconductor device with quantum dots having configurational anisotropy Mar. 12, 2013
8395372 Method for measuring current in an electric power distribution system Mar. 12, 2013
8384012 Photodiode comprising polarizer Feb. 26, 2013
RE44007 Low-noise spectroscopic ellipsometer Feb. 19, 2013
8374685 System, computer-readable medium, method, and use for combined epithelial early cancer diagnosis and staging Feb. 12, 2013
8350211 Quantum entity state processing system and method having heterogeneously influenceable quantum entity secondary states and conditioned quantum entity tertiary states Jan. 8, 2013
8345239 System and method for monitoring birefringent particles in a fluid Jan. 1, 2013
8294081 Surgical lamps and methods of illuminating a surgical site Oct. 23, 2012
8283622 Method and apparatus for testing magnetic properties of magnetic media Oct. 9, 2012
8269160 Image capturing system and image capturing method Sep. 18, 2012
8238026 Polarization-sensitive infrared image sensor including a plurality of optical fibers Aug. 7, 2012
8220930 Integrated opto-electronic device and portable reflective projection system Jul. 17, 2012
8199323 Method of characterizing the anisotropy of a scattering medium and device for implementing such a method Jun. 12, 2012
8175690 Optical device for assessing optical depth in a sample May. 8, 2012
8168939 Method and system for a light source assembly supporting direct coupling to an integrated circuit May. 1, 2012
8089038 Reticle image generation using polarizers and metamaterial filters Jan. 3, 2012
8080777 Optical device and optical system Dec. 20, 2011
8058608 Device for imaging scenes with very large ranges of intensity Nov. 15, 2011
8049158 Photonic proximity sensor and scalable photonic sensing system Nov. 1, 2011
8000767 Magneto-optical apparatus and method for the spatially-resolved detection of weak magnetic fields Aug. 16, 2011
7990528 High resolution linear image sensing using multi-row low resolution image sensor Aug. 2, 2011
7973914 Physical quantity measuring apparatus utilizing optical frequency domain reflectometry and method for temperature and strain measurement using the apparatus Jul. 5, 2011
7968841 Force and acceleration sensor using four wave mixing technique Jun. 28, 2011
7964840 High dynamic range image sensor including polarizer and microlens Jun. 21, 2011
7960682 Display device control based on integrated ambient light detection and lighting source characteristics Jun. 14, 2011
7928356 Quantum sensor miniaturization utilizing entangled photon signals Apr. 19, 2011
7889332 Physical quantity measuring apparatus utilizing optical frequency domain reflectometry, and method for simultaneous measurement of temperature and strain using the apparatus Feb. 15, 2011
7859658 Thin micropolarizing filter, and a method for making it Dec. 28, 2010
7847234 Method and system for observing a subject at a first location based upon quantum properties measured at a second location Dec. 7, 2010
7830530 Device and method for optical measurement of grains from cereals and like crops Nov. 9, 2010
7830511 Apparatus and method for measuring polarization direction of polarizing plate Nov. 9, 2010
7825402 Excitonic signal processing optically interfaced electrically controlled devices Nov. 2, 2010
7821654 System for scatterometric measurements and applications Oct. 26, 2010
7816640 Polarization beam splitter and projection apparatus having the same Oct. 19, 2010
7807957 Light source unit and projection type image display apparatus Oct. 5, 2010
7791052 Single-photon generation apparatus and quantum bit reading apparatus and method Sep. 7, 2010
7777211 Substantially transparent object detection system and method Aug. 17, 2010

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