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Class Information
Number: 250/206
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit
Description: Subject matter in which the photocell controls an electrical or electro-mechanical system circuit, and systems circuits under subclass 200 for supplying electric current and/or potential to a photocell.

Sub-classes under this class:

Class Number Class Name Patents
250/210 Bridge and push-pull circuits 35
250/207 Electron multiplier 326
250/206.1 Having means to generate positional information in at least one plane of a target moving relative to one or more photodetectors 290
250/555 Including coded record 63
250/208.1 Plural photosensitive image detecting element arrays 4,478
250/208.2 Plural photosensitive nonimage detecting elements 374
250/214R Special photocell or electron tube circuits 1,502
250/558 Stereoplotters 38
250/564 With circuit for evaluating a fluent material 72

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8691615 Image sensor and method of manufacturing the same Apr. 8, 2014
8687099 Imaging device, imaging method, and electronic device Apr. 1, 2014
8681135 Photo sensor and organic light emitting display using the same Mar. 25, 2014
8670059 Photoelectric conversion device having an n-type buried layer, and camera Mar. 11, 2014
8664603 Image forming apparatus Mar. 4, 2014
8648947 Image-pickup system and method of controlling same Feb. 11, 2014
8648287 Image sensor using single photon jots and processor to create pixels Feb. 11, 2014
8592739 Detection of configuration changes of an optical element in an illumination system Nov. 26, 2013
8571823 Method for controlling the quality of industrial processes, in particular laser-welding processes Oct. 29, 2013
8564580 Display device and electronic apparatus Oct. 22, 2013
8558152 Lens concentrator system for semi-active laser target designation Oct. 15, 2013
8558156 Device for capturing and preserving an energy beam which penetrates into an interior of said device and method therefor Oct. 15, 2013
8536505 Movable illuminance sensors for fixture light sources Sep. 17, 2013
8477125 Photo sensor and organic light-emitting display using the same Jul. 2, 2013
8426937 Light sensor and display Apr. 23, 2013
8411907 Device function modification method and system Apr. 2, 2013
8378286 Acoustic enhancement for photo detecting devices Feb. 19, 2013
8330087 Spectral imaging system with dynamic optical correction Dec. 11, 2012
8304706 Photodetector circuit and electronic device Nov. 6, 2012
8227733 Combined photoelectric conversion device Jul. 24, 2012
8228182 Self-testing notification appliance Jul. 24, 2012
8207481 Projectile guidance system including a compact semi-active laser seeker Jun. 26, 2012
8179410 Paper sheet sensor adjusting method May. 15, 2012
8143564 Photodetection circuit Mar. 27, 2012
8139281 Tunable optical filter apparatus and method Mar. 20, 2012
8134105 Light quantity measuring device and method for measuring light quantity that selectively connects light reception elements based on incident light angle Mar. 13, 2012
8101898 Optically gated MEMS switch Jan. 24, 2012
7968835 Electronic device having LED with variable brightness Jun. 28, 2011
7915571 On demand circuit function execution employing optical sensing Mar. 29, 2011
7907780 Method for collecting data for color measurements from a digital electronic image capturing device or system Mar. 15, 2011
7868281 Optical navigation system and method of estimating motion with optical lift detection Jan. 11, 2011
7800037 Power supply control circuit with optical feedback Sep. 21, 2010
7795529 Organic dye, photoelectric conversion material, semiconductor electrode and photoelectric conversion device Sep. 14, 2010
7792426 Method and device for operating an optical transmitting device having a plurality of optical transmitters that can be driven independently Sep. 7, 2010
7759622 Methods and apparatus for regulating the drive currents of a plurality of light emitters Jul. 20, 2010
7659497 On demand circuit function execution employing optical sensing Feb. 9, 2010
7638754 Backlight device, display apparatus including backlight device, method for driving backlight device, and method for adjusting backlight device Dec. 29, 2009
7599559 Method for collecting data for color measurements from a digital electronic image capturing device or system Oct. 6, 2009
7592583 Photosensor with customizable angular-response characteristics Sep. 22, 2009
7531780 Spectrum analyzer device on a chip May. 12, 2009
7521662 Portable handheld artificial light detector Apr. 21, 2009
7504612 Ambient light processing system for controlling display device by sensing ambient light and method using the system Mar. 17, 2009
7504611 Moving object detecting photointerrupter and electronic device using the same Mar. 17, 2009
7488925 Light control apparatus having a device for controlling the input signal light of an optical transmission path Feb. 10, 2009
7470895 Submersible power supply with integral photocell Dec. 30, 2008
7402743 Free-space human interface for interactive music, full-body musical instrument, and immersive media controller Jul. 22, 2008
7342210 Remote control for auto-darkening lens systems and method Mar. 11, 2008
7339672 Solid-state image pickup device and signal reading method therefor Mar. 4, 2008
7304285 Method and system for shaping a spatial response of a spatial filter Dec. 4, 2007
7297934 Optical system Nov. 20, 2007

1 2 3 4

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