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Class Information
Number: 356/448
Name: Optics: measuring and testing > Of light reflection (e.g., glass) > By comparison
Description: Subject matter including visual or photoelectric apparatus which compares the reflected light in intensity from the sample or material with the light from a standard material or article.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8687197 Method of monitoring progress of substrate polishing and polishing apparatus Apr. 1, 2014
8680993 System and apparatus for gloss correction in color measurements Mar. 25, 2014
8654338 Optics sensor structure for detecting water or oil leakage inside a conservator having a bladder or membrane Feb. 18, 2014
8619260 Multi-grating biosensor for label-independent optical readers Dec. 31, 2013
8619264 System and method for focusing optics Dec. 31, 2013
8587844 Image inspecting apparatus, image inspecting method, and image forming apparatus Nov. 19, 2013
8587786 Method for high-resolution detection of nanoparticles on two-dimensional detector surfaces Nov. 19, 2013
8570522 Capturing reflected light from a sampling surface Oct. 29, 2013
8570523 Method for discriminating between objects Oct. 29, 2013
8518247 Error correction for a liquid concentration detector of a blood purification apparatus Aug. 27, 2013
8508744 Surface plasmon resonance sensing method and sensing system Aug. 13, 2013
8506887 Porous membrane waveguide sensors and sensing systems therefrom for detecting biological or chemical targets Aug. 13, 2013
8508737 Spatial frequency optical measurement instrument and method Aug. 13, 2013
8497992 Analytical system with photonic crystal sensor Jul. 30, 2013
8467038 Method and device for measuring optical properties of an optically variable marking applied to an object Jun. 18, 2013
8462346 Representation of spatial-frequency data as a map Jun. 11, 2013
8454869 Stamper and stamper evaluation method Jun. 4, 2013
8446576 Carrier concentration measuring device and carrier concentration measuring method May. 21, 2013
8427648 Apparatus for discriminating between objects Apr. 23, 2013
8422019 Light measuring apparatus and light measuring method Apr. 16, 2013
8416418 Method and apparatus for gold detection Apr. 9, 2013
8411277 Method and apparatus for controlling quality of a microfluidic device Apr. 2, 2013
8411276 Multi-grade object sorting system and method Apr. 2, 2013
8405833 Method to determine the satin-effect on metal plated substrates Mar. 26, 2013
8400638 Apparatus and method for determining a characteristic of a consumable Mar. 19, 2013
8390817 Evanescent field modulation in a biosensor Mar. 5, 2013
8384904 Method and apparatus for determining the junction depth of a semiconductor region Feb. 26, 2013
8384905 Tunable light source for label-independent optical reader Feb. 26, 2013
8379207 Method and apparatus for estimating a fluid property Feb. 19, 2013
8368878 Method, apparatus, and article to facilitate evaluation of objects using electromagnetic energy Feb. 5, 2013
8355135 Surface plasmon resonance measuring device, sample cell, and measuring method Jan. 15, 2013
8345252 Method and system for enhanced formulation and visualization rendering Jan. 1, 2013
8345255 Solar concentrator testing Jan. 1, 2013
8339607 Ozone concentration sensor Dec. 25, 2012
8334972 Method and device for detecting soiling Dec. 18, 2012
8319956 System and method for shade selection using a fabric brightness factor Nov. 27, 2012
8314398 EUV light source components and methods for producing, using and refurbishing same Nov. 20, 2012
8314935 Target substance-detecting apparatus and target substance-detecting method Nov. 20, 2012
8292693 Using optical metrology for wafer to wafer feed back process control Oct. 23, 2012
8289178 Electro/optical smoke analyzer Oct. 16, 2012
8243278 Non-contact selection and control of lighting devices Aug. 14, 2012
8208144 Spatial frequency optical measurement instrument and method Jun. 26, 2012
8199325 Apparatus for detecting biomaterials and method for detecting biomaterials by using the apparatus Jun. 12, 2012
8179524 Hard disk inspection apparatus May. 15, 2012
8179533 Sensing system and method for discriminating plant matter May. 15, 2012
8153987 Automated calibration methodology for VUV metrology system Apr. 10, 2012
8147026 Image quality matching in a mixed print engine assembly system Apr. 3, 2012
8142693 Stamper and stamper evaluation method Mar. 27, 2012
8144329 Low power RF tuning using optical and non-reflected power methods Mar. 27, 2012
8134712 Apparatus and method for estimation of ore quality using color correlations Mar. 13, 2012

1 2 3 4 5 6 7

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