WO2007112259A3 - System and method for laser speckle reduction - Google Patents

System and method for laser speckle reduction Download PDF

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Publication number
WO2007112259A3
WO2007112259A3 PCT/US2007/064617 US2007064617W WO2007112259A3 WO 2007112259 A3 WO2007112259 A3 WO 2007112259A3 US 2007064617 W US2007064617 W US 2007064617W WO 2007112259 A3 WO2007112259 A3 WO 2007112259A3
Authority
WO
WIPO (PCT)
Prior art keywords
refracting device
optical
optical devices
refracting
reducing
Prior art date
Application number
PCT/US2007/064617
Other languages
French (fr)
Other versions
WO2007112259A2 (en
Inventor
Benjamin Lowell Lee
Original Assignee
Texas Instruments Inc
Benjamin Lowell Lee
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 Texas Instruments Inc, Benjamin Lowell Lee filed Critical Texas Instruments Inc
Publication of WO2007112259A2 publication Critical patent/WO2007112259A2/en
Publication of WO2007112259A3 publication Critical patent/WO2007112259A3/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/48—Laser speckle optics
    • 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

Abstract

A system (100) and method for reducing or eliminating speckle when using a coherent light source (112, 114, 116) is provided. A refracting device (125), comprising a birefringent material, is positioned such that the refracting device intercepts the coherent light. The refracting device rotates, thereby causing the ordinary and/or extraordinary beams to move. The human eye integrates the movement of the beams, reducing or eliminating laser speckle. The refracting device may include one or more optical devices formed of a birefringent material. Wave plates, such as a one-half wave plate, may be inserted between optical devices to cause specific patterns to be generated. Multiple optical devices having a different orientation of the horizontal component of the optical axis may also be used to generate other patterns. Furthermore, the refracting device may include an optical device having multiple sections of differing honrizontal components of the optical axis.
PCT/US2007/064617 2006-03-27 2007-03-22 System and method for laser speckle reduction WO2007112259A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/390,950 2006-03-27
US11/390,950 US20070223091A1 (en) 2006-03-27 2006-03-27 System and method for laser speckle reduction

Publications (2)

Publication Number Publication Date
WO2007112259A2 WO2007112259A2 (en) 2007-10-04
WO2007112259A3 true WO2007112259A3 (en) 2008-04-17

Family

ID=38533085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/064617 WO2007112259A2 (en) 2006-03-27 2007-03-22 System and method for laser speckle reduction

Country Status (2)

Country Link
US (1) US20070223091A1 (en)
WO (1) WO2007112259A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8059340B2 (en) * 2007-08-01 2011-11-15 Texas Instruments Incorporated Method and system for reducing speckle by vibrating a line generating element
US20090161196A1 (en) * 2007-12-20 2009-06-25 Barco Nv System and method for speckle reduction from a coherent light source in a projection device
US7653097B2 (en) * 2007-12-31 2010-01-26 Corning Incorporated Systems and methods for polarization modulation of an optical signal
US7970028B2 (en) * 2008-01-30 2011-06-28 Corning Incorporated System and methods for speckle reduction
ATE478357T1 (en) * 2008-04-15 2010-09-15 Jds Uniphase Corp WAVELENGTH PLATE BASED DEVICE AND METHOD FOR REDUCING SPECKLES IN LASER ILLUMINATION SYSTEMS
CN103052899B (en) * 2010-09-03 2015-02-04 青岛海信电器股份有限公司 Optical rotator and laser speckle suppression divece and method based on the same
US8573785B2 (en) 2010-11-23 2013-11-05 Corning Incorporated Wavelength-switched optical systems
JP6273006B2 (en) 2013-07-15 2018-01-31 エル イー エス エス・リミテッド Coherent optical waveguide illumination system with speckle noise reducer
EP3259637A1 (en) 2015-02-18 2017-12-27 IMAX Theatres International Limited Despeckling system for projected light
EP3607301A4 (en) * 2017-04-06 2020-12-16 The Government Of The United States Of America As The Secretary of The Navy Laser speckle reduction and photo-thermal speckle spectroscopy
CN207281393U (en) * 2017-09-29 2018-04-27 歌尔科技有限公司 Disappear speckle device, laser light source and laser projection system
CN207457625U (en) * 2017-11-22 2018-06-05 歌尔科技有限公司 Disappear speckle device, laser light source and laser projection system
CN207457624U (en) * 2017-11-22 2018-06-05 歌尔科技有限公司 Disappear speckle device, laser light source and laser projection system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562461A (en) * 1981-10-08 1985-12-31 Yin Ronald L Display apparatus and method therefor
US6167174A (en) * 1998-10-27 2000-12-26 Adc Telecommunications, Inc. Multiple port, fiber optic isolator
EP1021744B1 (en) * 1996-09-04 2002-01-30 Agilent Technologies, Inc. (a Delaware corporation) Compact two-by-n optical components based on birefringent walk-off crystals
US20020012167A1 (en) * 2000-07-14 2002-01-31 Jds Uniphase, Inc. & Jds Uniphase Corporation Isolated polarization beam splitter and combiner
US6501045B1 (en) * 2000-04-06 2002-12-31 Resonetics, Inc. Method and apparatus for controlling the taper angle of the walls of laser machined features
US6867918B2 (en) * 2000-12-07 2005-03-15 Jay N. Damask Methods and apparatus for generation and control of coherent polarization mode dispersion

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449597A (en) * 1966-04-21 1995-09-12 Sawyer; George M. Lippmann process of color photography, which produces a photograph with a 2-dimensional image, to result in another process of color photography which produces a photograph with a 3-dimensional image
US5313479A (en) * 1992-07-29 1994-05-17 Texas Instruments Incorporated Speckle-free display system using coherent light
US5825555A (en) * 1994-09-19 1998-10-20 Asahi Kogaku Kogyo Kabushiki Kaisha Beam projecting apparatus
US6184969B1 (en) * 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
US6473250B1 (en) * 1998-01-21 2002-10-29 Renishaw Plc Beam deflector
US6956878B1 (en) * 2000-02-07 2005-10-18 Silicon Light Machines Corporation Method and apparatus for reducing laser speckle using polarization averaging
JP2002287023A (en) * 2001-03-27 2002-10-03 Nikon Corp Projection optical system, projection aligner equipped with projection optical system, and projection aligning method
US20050094268A1 (en) * 2002-03-14 2005-05-05 Carl Zeiss Smt Ag Optical system with birefringent optical elements
US7414786B2 (en) * 2004-01-12 2008-08-19 University Of Rochester System and method converting the polarization state of an optical beam into an inhomogeneously polarized state
US6964484B2 (en) * 2004-02-02 2005-11-15 Hewlett-Packard Development Company, L.P. Overfill reduction for an optical modulator
WO2006105259A2 (en) * 2004-07-30 2006-10-05 Novalux, Inc. System and method for driving semiconductor laser sources for displays
KR100644644B1 (en) * 2004-10-28 2006-11-10 삼성전자주식회사 Illumination system eliminating laser speckle and one penal type of projection system employing the same
JP4822104B2 (en) * 2005-01-21 2011-11-24 大日本印刷株式会社 Projection system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562461A (en) * 1981-10-08 1985-12-31 Yin Ronald L Display apparatus and method therefor
EP1021744B1 (en) * 1996-09-04 2002-01-30 Agilent Technologies, Inc. (a Delaware corporation) Compact two-by-n optical components based on birefringent walk-off crystals
US6167174A (en) * 1998-10-27 2000-12-26 Adc Telecommunications, Inc. Multiple port, fiber optic isolator
US6501045B1 (en) * 2000-04-06 2002-12-31 Resonetics, Inc. Method and apparatus for controlling the taper angle of the walls of laser machined features
US20020012167A1 (en) * 2000-07-14 2002-01-31 Jds Uniphase, Inc. & Jds Uniphase Corporation Isolated polarization beam splitter and combiner
US6867918B2 (en) * 2000-12-07 2005-03-15 Jay N. Damask Methods and apparatus for generation and control of coherent polarization mode dispersion

Also Published As

Publication number Publication date
US20070223091A1 (en) 2007-09-27
WO2007112259A2 (en) 2007-10-04

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