WO2009020088A1 - Light source unit and image projector - Google Patents

Light source unit and image projector Download PDF

Info

Publication number
WO2009020088A1
WO2009020088A1 PCT/JP2008/063951 JP2008063951W WO2009020088A1 WO 2009020088 A1 WO2009020088 A1 WO 2009020088A1 JP 2008063951 W JP2008063951 W JP 2008063951W WO 2009020088 A1 WO2009020088 A1 WO 2009020088A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light source
light beam
source unit
light sources
Prior art date
Application number
PCT/JP2008/063951
Other languages
French (fr)
Japanese (ja)
Inventor
Kenji Konno
Original Assignee
Konica Minolta Opto, 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 Konica Minolta Opto, Inc. filed Critical Konica Minolta Opto, Inc.
Publication of WO2009020088A1 publication Critical patent/WO2009020088A1/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
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • 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
    • G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths

Abstract

A small-size light source unit having three-color laser light sources and emitting one light beam by combining three-color laser beams. The light source unit comprises a first light source, a second light source for emitting a light beam having a wavelength shorter than that of the light beam emitted from the first light source, a third light source for emitting a light beam having a wavelength different from those of the light beams emitted from the first and second light sources, and a light beam combining section for combining the light beams emitted from the first to third light sources into one light beam. The first and second light sources are arranged side by side adjacently to each other or apart at some distance. The optical axes of the adjacent light beams emitted from the first to third light sources are parallel to one another. The optical axes of the first to third light sources intersect a plane perpendicular to the optical axes of the light beams at first to third points forming a triangle, respectively. The first inner angle at the first point of the triangle and the second inner angle at the second point thereof are approximately right angles or less.
PCT/JP2008/063951 2007-08-09 2008-08-04 Light source unit and image projector WO2009020088A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007207807 2007-08-09
JP2007-207807 2007-08-09

Publications (1)

Publication Number Publication Date
WO2009020088A1 true WO2009020088A1 (en) 2009-02-12

Family

ID=40341321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063951 WO2009020088A1 (en) 2007-08-09 2008-08-04 Light source unit and image projector

Country Status (1)

Country Link
WO (1) WO2009020088A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115128894A (en) * 2022-07-29 2022-09-30 青岛海信激光显示股份有限公司 Projection light source and projection apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06208089A (en) * 1992-07-29 1994-07-26 Texas Instr Inc <Ti> Speckleless display apparatus using coherent light
JPH06324347A (en) * 1993-05-12 1994-11-25 Dainippon Printing Co Ltd Image projection device
JP2005352129A (en) * 2004-06-10 2005-12-22 Canon Inc Higher harmonics laser device, method for manufacturing the same, and picture display device using the same
JP2006178349A (en) * 2004-12-24 2006-07-06 Sanyo Electric Co Ltd Rear projection video display device
JP2006178346A (en) * 2004-12-24 2006-07-06 Canon Inc Optical scanner and picture display apparatus using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06208089A (en) * 1992-07-29 1994-07-26 Texas Instr Inc <Ti> Speckleless display apparatus using coherent light
JPH06324347A (en) * 1993-05-12 1994-11-25 Dainippon Printing Co Ltd Image projection device
JP2005352129A (en) * 2004-06-10 2005-12-22 Canon Inc Higher harmonics laser device, method for manufacturing the same, and picture display device using the same
JP2006178349A (en) * 2004-12-24 2006-07-06 Sanyo Electric Co Ltd Rear projection video display device
JP2006178346A (en) * 2004-12-24 2006-07-06 Canon Inc Optical scanner and picture display apparatus using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XINGSHENG LIU ET AL.: "Wavelength Matching and Tuning in Green laser Packaging using Second Harmonic Generation", ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE, 30 May 2006 (2006-05-30) - 6 June 2006 (2006-06-06), pages 1064 - 1069, XP010923514 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115128894A (en) * 2022-07-29 2022-09-30 青岛海信激光显示股份有限公司 Projection light source and projection apparatus
CN115128894B (en) * 2022-07-29 2023-09-26 青岛海信激光显示股份有限公司 Projection light source and projection device

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