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Class Information
Number: 356/213
Name: Optics: measuring and testing > Photometers
Description: Subject matter for determining the intensity or quantity of light emanating from a particular location or direction.










Sub-classes under this class:

Class Number Class Name Patents
356/229 Comparison 71
356/216 Heat absorbing (e.g., radiometers) 30
356/236 Integrating spheres 169
356/215 Integrating 65
356/234 Light absorbing 33
356/217 Modulating (e.g., flicker beam) 13
356/218 Photoelectric 283
356/214 Pupillary 7
356/233 With variable light aperture size 17


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8711342 Photoacoustic joulemeter utilizing beam deflection technique Apr. 29, 2014
8705023 Testing apparatus and method for testing light emitting diode lamp Apr. 22, 2014
8705024 Wavefront aberration measuring method and device therefor Apr. 22, 2014
8681327 Fault detection method and fault detection apparatus for VCSEL Mar. 25, 2014
8675187 Photometer and analyzing system provided with photometer Mar. 18, 2014
8665429 Method for measuring light intensity distribution Mar. 4, 2014
8665428 Method and device for examining a laser system Mar. 4, 2014
8659753 Apparatus and method for measuring energy in a laser beam Feb. 25, 2014
8659759 Laser based cavity enhanced optical absorption gas analyzer Feb. 25, 2014
8654323 Analyzing apparatus Feb. 18, 2014
8654337 Turbidity sensor Feb. 18, 2014
8625087 Packing container, method of packing optical probe, laser system, and checking method Jan. 7, 2014
8625084 Distance detecting induction device Jan. 7, 2014
8610888 Light measurement system Dec. 17, 2013
8611535 Characterization of an entangled photon system Dec. 17, 2013
8599364 Range sensor and range image sensor Dec. 3, 2013
8587776 Miniature laser seeker electro-optics Nov. 19, 2013
8567959 Optical sensor and projection system thereof Oct. 29, 2013
8564765 Optical measurement system Oct. 22, 2013
8493223 Safety monitoring system Jul. 23, 2013
8492682 Micro heater Jul. 23, 2013
8467046 Goniophotometer Jun. 18, 2013
8451436 Method and apparatus to define the velocity of a flowing fluid May. 28, 2013
8441470 Color sensor unit for use in display device, color measuring device for use in display device, display system incorporated with color sensor unit, and display calibration method May. 14, 2013
8417959 Biometric device based on luminescence Apr. 9, 2013
8405832 Light scattering measurement system based on flexible sensor array Mar. 26, 2013
8386179 Solar access measurement device Feb. 26, 2013
8350585 Simultaneous QE scanning system and methods for photovoltaic devices Jan. 8, 2013
8351029 Optical fiber sensor Jan. 8, 2013
8337628 Non-integrated bulk dispenser and method of operating a dishwasher having same Dec. 25, 2012
8305576 Apparatus and method for measuring total luminous flux Nov. 6, 2012
8294698 Processing circuit and electronic system utilizing the same Oct. 23, 2012
8284391 Method and arrangement for measuring a signal power Oct. 9, 2012
8243278 Non-contact selection and control of lighting devices Aug. 14, 2012
8228492 Solar-powered light intensity measurement device Jul. 24, 2012
8223324 Testing device and testing method employing the same Jul. 17, 2012
8213001 Method and apparatus for detecting microscope slide coverslips Jul. 3, 2012
8189181 Method and system of evaluating a stereo image displaying panel May. 29, 2012
8174688 Method of determining number of light sources May. 8, 2012
8130371 Method of calibrating reflection characteristic measuring apparatus for sheet specimen Mar. 6, 2012
8125631 Tester for testing optical detector Feb. 28, 2012
8111388 Luminous flux depreciation notification system for light fixtures incorporating light emitting diode sources Feb. 7, 2012
8077304 Light amount measuring apparatus Dec. 13, 2011
8054457 Light intensity detecting methods and devices, display devices and storage media Nov. 8, 2011
8048372 Sensor system for real-time bioluminescence signature determination Nov. 1, 2011
8049874 Method for measuring illuminance of lamp Nov. 1, 2011
8040501 Image forming apparatus Oct. 18, 2011
7940381 Semiconductor nanowire electromagnetic radiation sensor May. 10, 2011
7933009 Method and apparatus for verifying proper substrate positioning Apr. 26, 2011
7933010 Depth of field extension for optical tomography Apr. 26, 2011

1 2 3 4 5










 
 
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