JPS5565940A - Laser image display device - Google Patents

Laser image display device

Info

Publication number
JPS5565940A
JPS5565940A JP14025378A JP14025378A JPS5565940A JP S5565940 A JPS5565940 A JP S5565940A JP 14025378 A JP14025378 A JP 14025378A JP 14025378 A JP14025378 A JP 14025378A JP S5565940 A JPS5565940 A JP S5565940A
Authority
JP
Japan
Prior art keywords
screen
laser
speckle patterns
makes fine
images
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP14025378A
Other languages
Japanese (ja)
Inventor
Ikuo Matsuda
Shinichi Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14025378A priority Critical patent/JPS5565940A/en
Publication of JPS5565940A publication Critical patent/JPS5565940A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE: To eliminate speckle patterns and make the device easy to see by minutely relatively vibrating laser projecting light and screen.
CONSTITUTION: As a bimorph 10 or the like which is applied with AC voltage makes fine vibrations, a screen 11 makes fine vibration in cooperation to this and the screen 11 and the optical axis 14 of the laser projecting light makes fine vibration relatively. As a result of this, the laser light rediating a rough surface is removed of the speckle patterns formed by the numerous luminescent spots generated by the numerous interference of diffusion reflecting laser light owing to coherent characteristics and the degradation in the resolution of the images becomes of the extent of not permitting their identification. Hence, the laser images displayed on the screen are made to the easy-to-see images removed of speckle patterns by the simple constitution.
COPYRIGHT: (C)1980,JPO&Japio
JP14025378A 1978-11-13 1978-11-13 Laser image display device Pending JPS5565940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14025378A JPS5565940A (en) 1978-11-13 1978-11-13 Laser image display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14025378A JPS5565940A (en) 1978-11-13 1978-11-13 Laser image display device

Publications (1)

Publication Number Publication Date
JPS5565940A true JPS5565940A (en) 1980-05-17

Family

ID=15264470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14025378A Pending JPS5565940A (en) 1978-11-13 1978-11-13 Laser image display device

Country Status (1)

Country Link
JP (1) JPS5565940A (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924823A (en) * 1982-07-30 1984-02-08 Leo Giken:Kk Device for effacing influence of speckle of output light of optical fiber
JPS6052822A (en) * 1983-09-02 1985-03-26 Tokyo Erekutoron Kk Laser device
JPH01179908A (en) * 1988-01-11 1989-07-18 Fujitsu Ltd Method for uniformizing intensity distribution of laser beam
JPH01193836A (en) * 1987-10-07 1989-08-03 Texas Instr Inc <Ti> 3-d display system
JPH0340694A (en) * 1989-02-27 1991-02-21 Texas Instr Inc <Ti> Coherent light projecting system
JPH0650001U (en) * 1992-12-09 1994-07-08 有限会社こだま工房 Optical fiber screen device and optical display device using the same
KR100421870B1 (en) * 2001-07-06 2004-03-09 엘지전자 주식회사 pjojection display system
WO2005069059A1 (en) * 2004-01-19 2005-07-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Method for reducing the speckle contrast of a laser projection onto a projection screen and a projection screen for a laser projection
WO2005083492A1 (en) * 2004-02-27 2005-09-09 Matsushita Electric Industrial Co., Ltd. Illuminating light source and two-dimensional image display using same
JP2006189700A (en) * 2005-01-07 2006-07-20 Toppan Printing Co Ltd Projector and rear projection display device
WO2007049584A1 (en) * 2005-10-24 2007-05-03 Matsushita Electric Industrial Co., Ltd. Reflection type screen and forward projection system
JP2007199292A (en) * 2006-01-25 2007-08-09 Sony Corp Screen and image projection apparatus
JP2007249137A (en) * 2006-03-20 2007-09-27 Seiko Epson Corp Transmission screen and rear projection TV
WO2007138880A1 (en) * 2006-05-26 2007-12-06 Panasonic Corporation Image display device
US7370972B2 (en) 2003-12-24 2008-05-13 Matsushita Electric Industrial Co., Ltd. Two-dimensional image display device
US7399084B2 (en) 2004-04-09 2008-07-15 Matsushita Electric Industrial Co., Ltd. Laser image display apparatus
US7593159B2 (en) 2003-09-30 2009-09-22 Panasonic Corporation Display device
JP2009229597A (en) * 2008-03-19 2009-10-08 Seiko Epson Corp Image display apparatus
US7652819B2 (en) 2007-04-12 2010-01-26 Mitsubishi Electric Corporation Projection-type image display apparatus
US7660037B2 (en) 2006-06-06 2010-02-09 Seiko Epson Corporation Screen, projector, and image display device
US7796331B2 (en) 2005-05-17 2010-09-14 Panasonic Corporation Laser image display device and laser image display screen
EP2175305A4 (en) * 2007-08-09 2010-09-29 Konica Minolta Opto Inc Laser projector and image projection method
US7816637B2 (en) 2006-04-05 2010-10-19 Mitsubishi Electric Corporation Image display projector having a drive unit for moving either a Fresnel lens or a diffusion member
JP2010237492A (en) * 2009-03-31 2010-10-21 Stanley Electric Co Ltd Actuator device for optical deflector
US7880965B2 (en) 2007-10-29 2011-02-01 Mitsubishi Electric Corporation Projection-type image display device
US7922333B2 (en) 2006-04-27 2011-04-12 Seiko Epson Corporation Projector, screen, projector system, and scintillation removing apparatus for removing scintillation on an image display using a vibration generating unit
KR101064860B1 (en) 2004-12-31 2011-09-14 엘지전자 주식회사 Laser display device
US8089692B2 (en) 2008-07-23 2012-01-03 Mitsubishi Electric Corporation Projection type image display apparatus
US8616706B2 (en) 2011-03-22 2013-12-31 Sony Corporation Illumination device, projection display, and direct-view display
US9239463B2 (en) 2011-04-04 2016-01-19 Sony Corporation Illumination device and display unit for suppressing luminance unevenness and interference pattern
US9335558B2 (en) 2011-07-13 2016-05-10 Sony Corporation Illumination device and display device
US9500780B2 (en) 2010-10-04 2016-11-22 Sony Corporation Illumination device and display apparatus
EP3092530A4 (en) * 2014-01-03 2017-08-09 Dolby Laboratories Licensing Corporation Moveably-coupled screen actuators
JP2019215561A (en) * 2013-05-09 2019-12-19 アイマックス シアターズ インターナショナル リミテッド Method and system for vibrating screen
WO2022062892A1 (en) * 2020-09-27 2022-03-31 深圳光峰科技股份有限公司 Projection screen

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924823A (en) * 1982-07-30 1984-02-08 Leo Giken:Kk Device for effacing influence of speckle of output light of optical fiber
JPS6052822A (en) * 1983-09-02 1985-03-26 Tokyo Erekutoron Kk Laser device
JPH01193836A (en) * 1987-10-07 1989-08-03 Texas Instr Inc <Ti> 3-d display system
JPH01179908A (en) * 1988-01-11 1989-07-18 Fujitsu Ltd Method for uniformizing intensity distribution of laser beam
JPH0340694A (en) * 1989-02-27 1991-02-21 Texas Instr Inc <Ti> Coherent light projecting system
JPH0650001U (en) * 1992-12-09 1994-07-08 有限会社こだま工房 Optical fiber screen device and optical display device using the same
KR100421870B1 (en) * 2001-07-06 2004-03-09 엘지전자 주식회사 pjojection display system
US7593159B2 (en) 2003-09-30 2009-09-22 Panasonic Corporation Display device
US7370972B2 (en) 2003-12-24 2008-05-13 Matsushita Electric Industrial Co., Ltd. Two-dimensional image display device
WO2005069059A1 (en) * 2004-01-19 2005-07-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Method for reducing the speckle contrast of a laser projection onto a projection screen and a projection screen for a laser projection
US7679799B2 (en) 2004-02-27 2010-03-16 Panasonic Corporation Illuminating light source including a light intensity modulator that oscillates a light from a coherent light source in a non-integral multiple of one cycle and two- dimensional image display using the same
JPWO2005083492A1 (en) * 2004-02-27 2007-11-22 松下電器産業株式会社 Illumination light source and two-dimensional image display apparatus using the same
WO2005083492A1 (en) * 2004-02-27 2005-09-09 Matsushita Electric Industrial Co., Ltd. Illuminating light source and two-dimensional image display using same
US7399084B2 (en) 2004-04-09 2008-07-15 Matsushita Electric Industrial Co., Ltd. Laser image display apparatus
KR101064860B1 (en) 2004-12-31 2011-09-14 엘지전자 주식회사 Laser display device
JP2006189700A (en) * 2005-01-07 2006-07-20 Toppan Printing Co Ltd Projector and rear projection display device
US7796331B2 (en) 2005-05-17 2010-09-14 Panasonic Corporation Laser image display device and laser image display screen
WO2007049584A1 (en) * 2005-10-24 2007-05-03 Matsushita Electric Industrial Co., Ltd. Reflection type screen and forward projection system
US7688506B2 (en) 2006-01-25 2010-03-30 Sony Corporation Screen and image projection apparatus
JP2007199292A (en) * 2006-01-25 2007-08-09 Sony Corp Screen and image projection apparatus
JP2007249137A (en) * 2006-03-20 2007-09-27 Seiko Epson Corp Transmission screen and rear projection TV
US7816637B2 (en) 2006-04-05 2010-10-19 Mitsubishi Electric Corporation Image display projector having a drive unit for moving either a Fresnel lens or a diffusion member
US7922333B2 (en) 2006-04-27 2011-04-12 Seiko Epson Corporation Projector, screen, projector system, and scintillation removing apparatus for removing scintillation on an image display using a vibration generating unit
WO2007138880A1 (en) * 2006-05-26 2007-12-06 Panasonic Corporation Image display device
JPWO2007138880A1 (en) * 2006-05-26 2009-10-01 パナソニック株式会社 Image display device
US7660037B2 (en) 2006-06-06 2010-02-09 Seiko Epson Corporation Screen, projector, and image display device
US8416494B2 (en) 2006-06-06 2013-04-09 Seiko Epson Corporation Screen, projector, and image display device
US7986457B2 (en) 2006-06-06 2011-07-26 Seiko Epson Corporation Screen, projector, and image display device
US7652819B2 (en) 2007-04-12 2010-01-26 Mitsubishi Electric Corporation Projection-type image display apparatus
EP2175305A4 (en) * 2007-08-09 2010-09-29 Konica Minolta Opto Inc Laser projector and image projection method
US8262235B2 (en) 2007-08-09 2012-09-11 Konica Minolta Opto, Inc. Laser projector and image projection method for projecting an image with reduced speckles on the projected laser light image
US7880965B2 (en) 2007-10-29 2011-02-01 Mitsubishi Electric Corporation Projection-type image display device
JP2009229597A (en) * 2008-03-19 2009-10-08 Seiko Epson Corp Image display apparatus
US8089692B2 (en) 2008-07-23 2012-01-03 Mitsubishi Electric Corporation Projection type image display apparatus
JP2010237492A (en) * 2009-03-31 2010-10-21 Stanley Electric Co Ltd Actuator device for optical deflector
US8456727B2 (en) 2009-03-31 2013-06-04 Stanley Electric Co., Ltd. Actuator device for optical deflector
US10491869B2 (en) 2010-10-04 2019-11-26 Sony Corporation Illumination device and display apparatus
US9500780B2 (en) 2010-10-04 2016-11-22 Sony Corporation Illumination device and display apparatus
US8616706B2 (en) 2011-03-22 2013-12-31 Sony Corporation Illumination device, projection display, and direct-view display
US9239463B2 (en) 2011-04-04 2016-01-19 Sony Corporation Illumination device and display unit for suppressing luminance unevenness and interference pattern
US9335558B2 (en) 2011-07-13 2016-05-10 Sony Corporation Illumination device and display device
JP2019215561A (en) * 2013-05-09 2019-12-19 アイマックス シアターズ インターナショナル リミテッド Method and system for vibrating screen
US10884331B2 (en) * 2013-05-09 2021-01-05 Imax Theatres Internation Limited Methods and systems of vibrating a screen
JP2021107925A (en) * 2013-05-09 2021-07-29 アイマックス シアターズ インターナショナル リミテッド Screen vibration method and system
US11294269B2 (en) 2013-05-09 2022-04-05 Imax Theatres International Limited Methods and systems of vibrating a screen
JP2018116304A (en) * 2014-01-03 2018-07-26 ドルビー ラボラトリーズ ライセンシング コーポレイション Movably coupled screen actuator
US10429663B2 (en) 2014-01-03 2019-10-01 Dolby Laboratories Licensing Corporation Moveably-coupled screen actuators
US9921416B2 (en) 2014-01-03 2018-03-20 Dolby Laboratories Licensing Corporation Moveably-coupled screen actuators
EP3092530A4 (en) * 2014-01-03 2017-08-09 Dolby Laboratories Licensing Corporation Moveably-coupled screen actuators
US10901312B2 (en) 2014-01-03 2021-01-26 Dolby Laboratories Licensing Corporation Moveably-coupled screen actuators
US11249382B2 (en) 2014-01-03 2022-02-15 Dolby Laboratories Licensing Corporation Moveably-coupled screen actuators
WO2022062892A1 (en) * 2020-09-27 2022-03-31 深圳光峰科技股份有限公司 Projection screen

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