WO2006023112A3 - Laser power control arrangements in electro-optical readers - Google Patents

Laser power control arrangements in electro-optical readers Download PDF

Info

Publication number
WO2006023112A3
WO2006023112A3 PCT/US2005/023826 US2005023826W WO2006023112A3 WO 2006023112 A3 WO2006023112 A3 WO 2006023112A3 US 2005023826 W US2005023826 W US 2005023826W WO 2006023112 A3 WO2006023112 A3 WO 2006023112A3
Authority
WO
WIPO (PCT)
Prior art keywords
electro
power control
control arrangements
optical readers
laser power
Prior art date
Application number
PCT/US2005/023826
Other languages
French (fr)
Other versions
WO2006023112A2 (en
Inventor
James Giebel
Gary G Schneider
Vladimir Gurevich
Mark A Weitzner
Costanzo Difazio
Matthew Blasczak
Mark Anderson
Edward Barkan
Original Assignee
Symbol Technologies Inc
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 Symbol Technologies Inc filed Critical Symbol Technologies Inc
Priority to EP05769142A priority Critical patent/EP1771806A4/en
Priority to JP2007522524A priority patent/JP2008507759A/en
Publication of WO2006023112A2 publication Critical patent/WO2006023112A2/en
Publication of WO2006023112A3 publication Critical patent/WO2006023112A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10564—Light sources
    • G06K7/10584—Source control
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device

Abstract

Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of operating conditions not conforming to preestablished standards, and adjust power to the laser to enhance reader performance without violating prevalent safety standards.
PCT/US2005/023826 2004-07-23 2005-06-30 Laser power control arrangements in electro-optical readers WO2006023112A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05769142A EP1771806A4 (en) 2004-07-23 2005-06-30 Laser power control arrangements in electro-optical readers
JP2007522524A JP2008507759A (en) 2004-07-23 2005-06-30 Laser power control device in electro-optic reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/897,723 US7296743B2 (en) 2004-07-23 2004-07-23 Laser power control arrangements in electro-optical readers
US10/897,723 2004-07-23

Publications (2)

Publication Number Publication Date
WO2006023112A2 WO2006023112A2 (en) 2006-03-02
WO2006023112A3 true WO2006023112A3 (en) 2006-06-22

Family

ID=35656089

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/023826 WO2006023112A2 (en) 2004-07-23 2005-06-30 Laser power control arrangements in electro-optical readers

Country Status (6)

Country Link
US (1) US7296743B2 (en)
EP (1) EP1771806A4 (en)
JP (1) JP2008507759A (en)
CN (1) CN101036149A (en)
TW (1) TW200606747A (en)
WO (1) WO2006023112A2 (en)

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US7361171B2 (en) * 2003-05-20 2008-04-22 Raydiance, Inc. Man-portable optical ablation system
US8173929B1 (en) 2003-08-11 2012-05-08 Raydiance, Inc. Methods and systems for trimming circuits
US7367969B2 (en) * 2003-08-11 2008-05-06 Raydiance, Inc. Ablative material removal with a preset removal rate or volume or depth
US9022037B2 (en) * 2003-08-11 2015-05-05 Raydiance, Inc. Laser ablation method and apparatus having a feedback loop and control unit
US7267283B2 (en) * 2004-11-30 2007-09-11 Symbol Technologies, Inc. Management of data capture systems
US8135050B1 (en) 2005-07-19 2012-03-13 Raydiance, Inc. Automated polarization correction
US20070047605A1 (en) * 2005-08-26 2007-03-01 Edward Barkan Laser power control arrangements in electro-optical readers
US8189971B1 (en) 2006-01-23 2012-05-29 Raydiance, Inc. Dispersion compensation in a chirped pulse amplification system
US9130344B2 (en) * 2006-01-23 2015-09-08 Raydiance, Inc. Automated laser tuning
US7444049B1 (en) * 2006-01-23 2008-10-28 Raydiance, Inc. Pulse stretcher and compressor including a multi-pass Bragg grating
US8232687B2 (en) 2006-04-26 2012-07-31 Raydiance, Inc. Intelligent laser interlock system
US7822347B1 (en) 2006-03-28 2010-10-26 Raydiance, Inc. Active tuning of temporal dispersion in an ultrashort pulse laser system
US7743989B2 (en) * 2006-09-28 2010-06-29 Symbol Technologies, Inc. Laser power control arrangements in electro-optical readers
US8141781B2 (en) * 2006-12-29 2012-03-27 Datalogic Scanning Group S.R.L. Laser light beam scanning device for reading coded information and scanning optical element for such device
US7735738B2 (en) * 2007-06-28 2010-06-15 Symbol Technologies, Inc. Thermal management in imaging reader
US8028918B2 (en) * 2007-10-31 2011-10-04 Symbol Technologies, Inc. Enhanced monitoring of laser output power in electro-optical readers
US7963447B2 (en) * 2007-11-30 2011-06-21 Symbol Technologies, Inc. Enhanced monitoring of laser output power in electro-optical readers
US7903326B2 (en) 2007-11-30 2011-03-08 Radiance, Inc. Static phase mask for high-order spectral phase control in a hybrid chirped pulse amplifier system
US8091789B2 (en) * 2007-12-20 2012-01-10 Ncr Corporation Barcode imaging system and source of electromagnetic radiation therefor
JP2009193447A (en) * 2008-02-15 2009-08-27 Marson Technology Co Ltd Laser bar code scanner and scanning method thereof
JP5368725B2 (en) * 2008-04-18 2013-12-18 株式会社キーエンス Bar code reading apparatus and bar code reading method
US20090289382A1 (en) * 2008-05-22 2009-11-26 Raydiance, Inc. System and method for modifying characteristics of a contact lens utilizing an ultra-short pulsed laser
US8125704B2 (en) * 2008-08-18 2012-02-28 Raydiance, Inc. Systems and methods for controlling a pulsed laser by combining laser signals
US8498538B2 (en) * 2008-11-14 2013-07-30 Raydiance, Inc. Compact monolithic dispersion compensator
US20100158055A1 (en) * 2008-12-18 2010-06-24 Symbol Technologies, Inc. Method and apparatus for controlling and monitoring laser power in barcode readers
US8167208B2 (en) * 2010-06-23 2012-05-01 Symbol Technologies, Inc. Arrangement for and method of controlling monitor photodiode leakage current in lasers in electro-optical readers
WO2012037465A1 (en) 2010-09-16 2012-03-22 Raydiance, Inc. Laser based processing of layered materials
US10239160B2 (en) 2011-09-21 2019-03-26 Coherent, Inc. Systems and processes that singulate materials
CN102843191B (en) * 2012-09-29 2015-03-25 青岛海信宽带多媒体技术有限公司 Method and device for adjusting emitted light power of optical module
CN104516105A (en) * 2013-09-29 2015-04-15 中强光电股份有限公司 Laser scanning device and calibration method thereof
EP3888351A4 (en) * 2018-11-29 2022-07-20 Ha, Hieu Thuan Charles Projection device for displaying construction plans
DE102020123149A1 (en) * 2020-09-04 2022-03-10 Infineon Technologies Ag CONTROL CIRCUIT FOR ELECTRONIC SWITCH

Citations (6)

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US4709195A (en) * 1986-09-12 1987-11-24 Spectra-Physics, Inc. Bar code scanner with DC brushless motor
US4928284A (en) * 1988-09-28 1990-05-22 Lasa Industries, Inc. Laser power control system
US5719385A (en) * 1995-12-08 1998-02-17 Ncr Corporation Optical scanner having multi-line and single-line scanning modes
US5895908A (en) * 1995-10-25 1999-04-20 Fujitsu Limited Bar code scanner with laser power down feature
US20050141069A1 (en) * 2003-12-31 2005-06-30 Wood Frederick F. Method and apparatus for conserving power in a laser projection display
US20050211782A1 (en) * 1998-12-03 2005-09-29 William Martin Automatically-activated hand-supportable laser scanning bar code symbol reading system with omnidirectional and unidirectional scanning modes in addition to a data transmission activation switch

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US4575625A (en) * 1983-09-27 1986-03-11 Knowles Carl H Integral hand-held laser scanner
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US5163063A (en) * 1990-02-07 1992-11-10 Copal Co., Ltd. Semiconductor laser driving circuit
US5942743A (en) * 1994-08-17 1999-08-24 Metrologic Instruments, Inc. Portable automatic hand-supportable omnidirectional laser projection scanner with power conserving control system
CA2056842A1 (en) * 1991-02-07 1992-08-08 Jay M. Eastman System for scanning and reading symbols, such as bar codes, which is adapted to be configured in a hand held unit and can automatically read symbols on objects which are placed inthe detection zone of the unit
JPH05110175A (en) * 1991-10-18 1993-04-30 Fujitsu Ltd Semiconductor laser control device
US5484990A (en) * 1993-12-15 1996-01-16 Ncr Corporation Information Solutions Company Multiple depth of field laser optical scanner
US5928284A (en) * 1998-07-09 1999-07-27 Mehdizadeh; Hamid M. Disc replacement prosthesis
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709195A (en) * 1986-09-12 1987-11-24 Spectra-Physics, Inc. Bar code scanner with DC brushless motor
US4928284A (en) * 1988-09-28 1990-05-22 Lasa Industries, Inc. Laser power control system
US5895908A (en) * 1995-10-25 1999-04-20 Fujitsu Limited Bar code scanner with laser power down feature
US5719385A (en) * 1995-12-08 1998-02-17 Ncr Corporation Optical scanner having multi-line and single-line scanning modes
US20050211782A1 (en) * 1998-12-03 2005-09-29 William Martin Automatically-activated hand-supportable laser scanning bar code symbol reading system with omnidirectional and unidirectional scanning modes in addition to a data transmission activation switch
US20050141069A1 (en) * 2003-12-31 2005-06-30 Wood Frederick F. Method and apparatus for conserving power in a laser projection display

Also Published As

Publication number Publication date
CN101036149A (en) 2007-09-12
JP2008507759A (en) 2008-03-13
US7296743B2 (en) 2007-11-20
US20060016891A1 (en) 2006-01-26
WO2006023112A2 (en) 2006-03-02
TW200606747A (en) 2006-02-16
EP1771806A4 (en) 2008-10-29
EP1771806A2 (en) 2007-04-11

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