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Class Information
Number: 372/38.09
Name: Coherent light generators > Particular component circuitry > Having fault protection circuitry
Description: Subject matter wherein the particular component circuitry causes the coherent light generator to cease operation or change an operating characteristic in response to a sensed nonstandard operating condition.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8521019 Method and system for closed loop control of an optical link Aug. 27, 2013
8511838 Scanning laser projector with safety system Aug. 20, 2013
8503496 Device for judging state of semiconductor laser and method for judging state of semiconductor laser Aug. 6, 2013
8503497 Protection device for solid state laser Aug. 6, 2013
8369373 Pre-ionization method for CO.sub.2 gas-discharge laser Feb. 5, 2013
8309972 LEDs with efficient electrode structures Nov. 13, 2012
8294672 Single fault laser driver control for optical mouse Oct. 23, 2012
8284809 Laser bandwidth interlock capable of single pulse detection and rejection Oct. 9, 2012
8232687 Intelligent laser interlock system Jul. 31, 2012
8189636 Electrical overstress event indicator on electronic circuitry May. 29, 2012
8115226 Low optical loss electrode structures for LEDs Feb. 14, 2012
8114690 Methods of low loss electrode structures for LEDs Feb. 14, 2012
7995636 Semiconductor laser apparatus and manufacturing method thereof Aug. 9, 2011
7916765 Control circuit for a laser diode and a method to control a laser diode Mar. 29, 2011
7911412 Audience scanning light projector and associated methods Mar. 22, 2011
7897992 Low optical loss electrode structures for LEDs Mar. 1, 2011
7889772 Laser oscillator apparatus and power supply apparatus therefor, and control method therefor Feb. 15, 2011
7885301 Laser safety system Feb. 8, 2011
7860136 Fault tolerant laser diode package Dec. 28, 2010
7830935 Laser Nov. 9, 2010
7817690 Laser generator and method of controlling the same Oct. 19, 2010
7809034 Auto-power control circuit to maintain extinction ratio of optical output from laser diode Oct. 5, 2010
7787507 Method and apparatus for controlling laser modulation based on measurements of average laser output power Aug. 31, 2010
7787504 Optical supply arrangement Aug. 31, 2010
7756174 Laser projector safety monitoring system Jul. 13, 2010
7720118 Laser unit having preparatory function for activating the unit and activation method for the unit May. 18, 2010
7665852 Arrangement for and method of projecting an image with safety circuitry Feb. 23, 2010
7653103 Pulse oscillating type solid laser unit and laser process unit Jan. 26, 2010
7643522 Method and apparatus for gas discharge laser bandwidth and center wavelength control Jan. 5, 2010
7609736 Laser power control arrangements in electro-optical readers Oct. 27, 2009
7564881 Optical transmission module with digital adjustment and the adjusting method Jul. 21, 2009
7564882 Integrated circuit having on-chip laser burn-in circuit Jul. 21, 2009
7535940 Optical transmitter May. 19, 2009
7526006 Laser power control circuit Apr. 28, 2009
7515619 Laser control circuit Apr. 7, 2009
7512163 Dual current control for laser diode driver circuit Mar. 31, 2009
7512164 Laser drive IC and optical transceiver using same Mar. 31, 2009
7473880 Open loop laser power control for optical navigation devices and optical systems Jan. 6, 2009
7443896 Optical midpoint power control and extinction ratio control of a semiconductor laser Oct. 28, 2008
7443897 Method for distinguish failure modes in an APC circuit and an optical transmitter using the same Oct. 28, 2008
7433378 Optical element and method for manufacturing the same Oct. 7, 2008
7346088 Voltage dividing apparatus for preventing sudden increases in power to a laser diode Mar. 18, 2008
7342949 Laser scanning device Mar. 11, 2008
7315558 Disable/enable control for laser driver eye safety Jan. 1, 2008
7280575 Eye safety logic with compensation for transient conditions Oct. 9, 2007
7209502 Open loop laser power control for optical navigation devices and optical systems Apr. 24, 2007
7180922 Safety system for focused energy applications Feb. 20, 2007
7164700 Laser driving circuit Jan. 16, 2007
7136405 Laser beam irradiation device Nov. 14, 2006
7130323 Semiconductor laser device and semiconductor-laser excited solid-state laser apparatus Oct. 31, 2006

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