WO2006078877A3 - Laser projector for audience scanning - Google Patents

Laser projector for audience scanning Download PDF

Info

Publication number
WO2006078877A3
WO2006078877A3 PCT/US2006/001988 US2006001988W WO2006078877A3 WO 2006078877 A3 WO2006078877 A3 WO 2006078877A3 US 2006001988 W US2006001988 W US 2006001988W WO 2006078877 A3 WO2006078877 A3 WO 2006078877A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser beam
fault
laser light
light source
laser
Prior art date
Application number
PCT/US2006/001988
Other languages
French (fr)
Other versions
WO2006078877A2 (en
Inventor
William R Benner Jr
Original Assignee
William R Benner Jr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by William R Benner Jr filed Critical William R Benner Jr
Priority to AU2006206400A priority Critical patent/AU2006206400B2/en
Priority to EP06733773A priority patent/EP1851964A2/en
Priority to US11/814,310 priority patent/US7756174B2/en
Publication of WO2006078877A2 publication Critical patent/WO2006078877A2/en
Publication of WO2006078877A3 publication Critical patent/WO2006078877A3/en
Priority to US12/791,326 priority patent/US8681828B2/en
Priority to US13/151,741 priority patent/US8506087B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

An apparatus and method for a laser light projector, including a laser beam generated by a laser light source; a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates; a power meter positioned for quantifying the laser beam's power in real time; a fault detector operably connected in thelaser light projector to detect a fault condition and automatically generate a fault signal in response thereto; a modulator responsive to the fault signal for reducing power in the laser beam; and a fault shutter operably associated with the laser light source and responsive to the fault signal so as to shut off the laser beam.
PCT/US2006/001988 2005-01-19 2006-01-19 Laser projector for audience scanning WO2006078877A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2006206400A AU2006206400B2 (en) 2005-01-19 2006-01-19 Laser projector for audience scanning
EP06733773A EP1851964A2 (en) 2005-01-19 2006-01-19 Laser projector for audience scanning
US11/814,310 US7756174B2 (en) 2005-01-19 2006-01-19 Laser projector safety monitoring system
US12/791,326 US8681828B2 (en) 2006-01-19 2010-06-01 Laser projection system and safety lens for audience scanning
US13/151,741 US8506087B2 (en) 2005-01-19 2011-06-02 Laser projector having safety lens for audience scanning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64554305P 2005-01-19 2005-01-19
US60/645,543 2005-01-19

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US11/814,310 A-371-Of-International US7756174B2 (en) 2005-01-19 2006-01-19 Laser projector safety monitoring system
US12/791,326 Continuation-In-Part US8681828B2 (en) 2005-01-19 2010-06-01 Laser projection system and safety lens for audience scanning

Publications (2)

Publication Number Publication Date
WO2006078877A2 WO2006078877A2 (en) 2006-07-27
WO2006078877A3 true WO2006078877A3 (en) 2008-10-09

Family

ID=36692905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/001988 WO2006078877A2 (en) 2005-01-19 2006-01-19 Laser projector for audience scanning

Country Status (4)

Country Link
US (1) US7756174B2 (en)
EP (1) EP1851964A2 (en)
AU (1) AU2006206400B2 (en)
WO (1) WO2006078877A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8681828B2 (en) * 2006-01-19 2014-03-25 William R. Benner, Jr. Laser projection system and safety lens for audience scanning
US8290208B2 (en) 2009-01-12 2012-10-16 Eastman Kodak Company Enhanced safety during laser projection
US8342691B2 (en) * 2010-02-03 2013-01-01 International Business Machines Corporation Information technology system with micro projector display
US8511838B2 (en) 2011-06-29 2013-08-20 Microvision, Inc. Scanning laser projector with safety system
IL214741A0 (en) * 2011-08-18 2011-10-31 Sason Sourani Method and apparatus for simultaneous use of a plurality of laser diodes
EP3120189B1 (en) * 2014-03-21 2024-06-19 Lightwave International, Inc. Laser projection system
US9268204B2 (en) 2014-07-15 2016-02-23 X-Laser LLC Verification of laser projector safety system operation
CN109791278B (en) * 2016-09-30 2022-05-03 三美电机株式会社 Optical scanning device and retina scanning type head-mounted display
CN211935467U (en) 2017-03-02 2020-11-17 贝姆15有限责任公司 Optical device for dynamically reconstructing or simulating a competition situation
DE102017220810A1 (en) * 2017-11-22 2019-05-23 Robert Bosch Gmbh Laser projection device
CN107861248B (en) * 2017-12-25 2023-12-26 歌尔光学科技有限公司 Laser beam scanning display device and augmented reality glasses
CN109005370B (en) * 2018-07-27 2020-07-03 Oppo广东移动通信有限公司 Control system and electronic device for structured light projector
WO2020019704A1 (en) 2018-07-27 2020-01-30 Oppo广东移动通信有限公司 Control system of structured light projector, and electronic device
US11402627B2 (en) 2018-11-19 2022-08-02 Virtek Vision International Inc. System and method for limiting laser exposure of arbitrary laser template projection
CN110263885B (en) * 2019-05-23 2022-08-05 深圳光维科技有限公司 Method and device for checking projector fault, terminal equipment and storage medium
CN113252302B (en) * 2021-04-12 2024-10-11 深圳市大美光电有限公司 Detection method, device and projection system of laser scanner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000194302A (en) * 1998-12-28 2000-07-14 Brother Ind Ltd Projection display device
US6661820B1 (en) * 1999-08-09 2003-12-09 Perceptron, Inc. Method and system for maximizing safe laser power of structured laser light projectors used with imaging sensors
US20050024704A1 (en) * 2003-07-09 2005-02-03 Yoshitsugu Sakai Optical apparatus and laser display apparatus having laser beam scanner each

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006970A (en) 1975-07-14 1977-02-08 Laser Images Inc. Laser light image generator
JPH0451011A (en) 1990-06-18 1992-02-19 Pioneer Electron Corp Laser light projection type display device
US5546139A (en) 1993-06-28 1996-08-13 Bacs, Jr.; Aron Moving imagery projection system
US7301558B2 (en) 1996-02-27 2007-11-27 Media Technologies Licensing, Llc Imaging system and method
US6583772B1 (en) 1998-08-05 2003-06-24 Microvision, Inc. Linked scanner imaging system and method
US6697408B2 (en) * 2001-04-04 2004-02-24 Coherent, Inc. Q-switched cavity dumped CO2 laser for material processing
US6580560B1 (en) 2002-02-01 2003-06-17 William R. Benner, Jr. Laser light projector having beam diffuser and associated methods
US6919892B1 (en) 2002-08-14 2005-07-19 Avaworks, Incorporated Photo realistic talking head creation system and method
US6867753B2 (en) 2002-10-28 2005-03-15 University Of Washington Virtual image registration in augmented display field
EP1757087A4 (en) 2004-04-16 2009-08-19 James A Aman Automatic event videoing, tracking and content generation system
US7576757B2 (en) 2004-11-24 2009-08-18 General Electric Company System and method for generating most read images in a PACS workstation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000194302A (en) * 1998-12-28 2000-07-14 Brother Ind Ltd Projection display device
US6661820B1 (en) * 1999-08-09 2003-12-09 Perceptron, Inc. Method and system for maximizing safe laser power of structured laser light projectors used with imaging sensors
US20050024704A1 (en) * 2003-07-09 2005-02-03 Yoshitsugu Sakai Optical apparatus and laser display apparatus having laser beam scanner each

Also Published As

Publication number Publication date
EP1851964A2 (en) 2007-11-07
US7756174B2 (en) 2010-07-13
US20080123708A1 (en) 2008-05-29
AU2006206400B2 (en) 2010-10-28
AU2006206400A1 (en) 2006-07-27
WO2006078877A2 (en) 2006-07-27

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