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Coherent optical noise suppression apparatus


Publication number
CA918474A CA 82976 CA82976A CA918474A CA 918474 A CA918474 A CA 918474A CA 82976 CA82976 CA 82976 CA 82976 A CA82976 A CA 82976A CA 918474 A CA918474 A CA 918474A
Grant status
Patent type
Prior art keywords
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.)
Application number
CA 82976
S. Mathisen Einar
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Grant date



    • G03H1/00Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/32Systems for obtaining speckle elimination
CA 82976 1969-06-17 1970-05-19 Coherent optical noise suppression apparatus Expired CA918474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US83390669 true 1969-06-17 1969-06-17

Publications (1)

Publication Number Publication Date
CA918474A true CA918474A (en) 1973-01-09



Family Applications (1)

Application Number Title Priority Date Filing Date
CA 82976 Expired CA918474A (en) 1969-06-17 1970-05-19 Coherent optical noise suppression apparatus

Country Status (6)

Country Link
US (1) US3588217A (en)
JP (1) JPS4948979B1 (en)
CA (1) CA918474A (en)
DE (1) DE2029218B2 (en)
FR (1) FR2052340A5 (en)
GB (1) GB1291340A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155630A (en) * 1977-11-17 1979-05-22 University Of Delaware Speckle elimination by random spatial phase modulation
DE19704741A1 (en) * 1997-02-13 1998-08-20 Daimler Benz Ag Holographic screen with integrated Speckleunterdrückung
US6791739B2 (en) 2001-08-08 2004-09-14 Eastman Kodak Company Electro-optic despeckling modulator and method of use
US6594090B2 (en) 2001-08-27 2003-07-15 Eastman Kodak Company Laser projection display system
US6577429B1 (en) 2002-01-15 2003-06-10 Eastman Kodak Company Laser projection display system
USRE44472E1 (en) 2002-04-22 2013-09-03 Pertex Telecommunication Llc Extended source transmitter for free space optical communication systems
US6810175B1 (en) * 2002-04-22 2004-10-26 Terabeam Corporation Off-axis mode scrambler
WO2004106999A1 (en) * 2003-05-28 2004-12-09 Corning Incorporated Methods of generating and transporting short wavelength radiation and apparati used therein
WO2007007389A1 (en) * 2005-07-11 2007-01-18 Mitsubishi Denki Kabushiki Kaisha Speckle removing light source and illuminator
JP5058798B2 (en) * 2005-07-11 2012-10-24 三菱電機株式会社 Lighting device
US7457330B2 (en) 2006-06-15 2008-11-25 Pavilion Integration Corporation Low speckle noise monolithic microchip RGB lasers
GB0814377D0 (en) * 2008-08-06 2008-09-10 Optyka Ltd Image projection apparatus and method
US7969644B2 (en) * 2008-09-02 2011-06-28 Elbit Systems Of America, Llc System and method for despeckling an image illuminated by a coherent light source
GB2467181B (en) * 2009-01-27 2014-03-05 Optyka Ltd Speckle removal for a laser scanning projector
US8437059B2 (en) * 2010-01-21 2013-05-07 Technion Research & Development Foundation Limited Method for reconstructing a holographic projection
EP2354638A1 (en) * 2010-02-09 2011-08-10 Koninklijke Philips Electronics N.V. Lighting apparatus for generating a decorative illumination pattern
US9229156B2 (en) * 2011-07-07 2016-01-05 Reald Inc. Laser systems and methods
CN103364956B (en) * 2012-03-29 2016-01-06 山东华光光电子有限公司 An optical fiber output of the laser spot uniform dissipation of the method and apparatus
CN103293700A (en) * 2013-05-20 2013-09-11 北京航空航天大学 Optical mixing rod vibration structure for laser illumination speckle reduction

Also Published As

Publication number Publication date Type
JPS4948979B1 (en) 1974-12-24 grant
GB1291340A (en) 1972-10-04 application
US3588217A (en) 1971-06-28 grant
DE2029218A1 (en) 1971-01-07 application
CA918474A1 (en) grant
DE2029218B2 (en) 1977-04-07 application
FR2052340A5 (en) 1971-04-09 application

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