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Class Information
Number: 250/227.24
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Light conductor > With coupling enhancement means
Description: Subject matter with means used to increase the overall coupling efficiency of the light conductor and the photocell, i.e., to improve the ratio of light reaching the photocell from the light conductor to the light leaving the photoconductor on its way to the photocell.

Sub-classes under this class:

Class Number Class Name Patents
250/227.25 Fluid coupling 169

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8712485 Proximity sensor arrangement in a mobile device Apr. 29, 2014
8692178 Photosensitive control system, and method of operating thereof Apr. 8, 2014
8647333 Ophthalmic surgical device Feb. 11, 2014
8536512 Opto-electronic circuit board and manufacturing method for the same Sep. 17, 2013
8520201 Optical signal inspection device Aug. 27, 2013
8515227 Microbubble optical resonator Aug. 20, 2013
8476576 Optical device having partially butt-coupled light sensor Jul. 2, 2013
8395107 Optical fiber photoelectric sensor with improved light coupling Mar. 12, 2013
8299417 Variable optical attentuator (VOA) having an absorber for receiving residual light outputfrom the VOA Oct. 30, 2012
8168940 Optical transmission module, electronic device and method for manufacturing optical transmission module May. 1, 2012
8164043 Optical module with fiber holding ferrule Apr. 24, 2012
8124927 Detecting light in whispering-gallery-mode resonators Feb. 28, 2012
7956317 Fibre optic probe Jun. 7, 2011
RE42178 Fiber optic conversion system and method Mar. 1, 2011
7894054 Optical sensor device for detecting ambient light Feb. 22, 2011
7835006 Optical fiber sensors using grating-assisted surface plasmon-coupled emission (GASPCE) Nov. 16, 2010
7825365 Fiber-optic harness testing apparatus and related methods Nov. 2, 2010
7804055 Optical sensor device for the windshield of a motor vehicle having Fresnel lens structures Sep. 28, 2010
7755073 Acousto-optic filter and optical CDMA system using the same Jul. 13, 2010
7751054 Optical sensor device for detecting wetting Jul. 6, 2010
7692135 WDM signal detector Apr. 6, 2010
7645980 Photoelectric switch having a prism with a reflective surface being positioned by a release button Jan. 12, 2010
7622708 Optical element for free-space propagation between an optical waveguide and another optical waveguide, component, or device Nov. 24, 2009
7573576 Optical sensor device Aug. 11, 2009
7561776 Method of preventing hydrogen darkening of optic fibre Jul. 14, 2009
7449674 Optical transmission module Nov. 11, 2008
7428051 Device for the IR-spectrometric analysis of a solid, liquid or gaseous medium Sep. 23, 2008
7359640 Optical coupling device and method for bidirectional data communication over a common signal line Apr. 15, 2008
7326916 Optical submarine transmission system Feb. 5, 2008
7324089 Optical device for optical mouse Jan. 29, 2008
7250597 Measuring and adjustment device for an alignment optical system and adjustment method thereof Jul. 31, 2007
7211784 Photo-detection device and temperature distribution detection device using the same May. 1, 2007
7173235 Apparatus for optically reading target Feb. 6, 2007
7170648 Device for scanning register marks into a polychrome printing machine Jan. 30, 2007
7112780 Detector unit Sep. 26, 2006
7091492 Imaging device comprising optically coupled fiber optic plate assembly Aug. 15, 2006
7087887 Optical multiphase flow sensor Aug. 8, 2006
7057158 Optical subassembly for high speed optoelectronic devices Jun. 6, 2006
7053360 Capacitive type control member having a touch sensitive detector May. 30, 2006
6914231 Optical shuffle/interconnect system Jul. 5, 2005
6885016 Switching power supply circuit using a silicon based LED for feedback Apr. 26, 2005
6835923 Method and apparatus for self-monitoring of proximity sensors Dec. 28, 2004
6768099 Device for detecting a parameter associated with the state of a vehicle, especially an automobile Jul. 27, 2004
6723978 Fiber optic conversion system and method Apr. 20, 2004
6670604 Light detection equipment in components with optical access Dec. 30, 2003
6614015 Detector of stains on a transparent plate surface Sep. 2, 2003
6531692 Optical coupling assembly for image sensing operator input device Mar. 11, 2003
6472655 Remote amplifier for an optical transmission system and method of evaluating a faulty point Oct. 29, 2002
6388248 Control voltage isolation system for electrical rotating apparatus utilizing fiber optics and associated method May. 14, 2002
6376851 Opto-coupler applications suitable for low efficiency silicon based LEDs Apr. 23, 2002

1 2 3 4 5 6 7

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