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WO2008126830A1 - Light source device and projector - Google Patents

Light source device and projector Download PDF

Info

Publication number
WO2008126830A1
WO2008126830A1 PCT/JP2008/056905 JP2008056905W WO2008126830A1 WO 2008126830 A1 WO2008126830 A1 WO 2008126830A1 JP 2008056905 W JP2008056905 W JP 2008056905W WO 2008126830 A1 WO2008126830 A1 WO 2008126830A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
optical path
light
source device
source means
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.)
Ceased
Application number
PCT/JP2008/056905
Other languages
French (fr)
Japanese (ja)
Inventor
Hirokazu Godo
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.)
Olympus Corp
Original Assignee
Olympus 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
Application filed by Olympus Corp filed Critical Olympus Corp
Publication of WO2008126830A1 publication Critical patent/WO2008126830A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G03B21/2066—Reflectors in illumination beam
    • 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
    • G03B21/2033—LED or laser light sources
    • 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
    • G03B21/2053—Intensity control of illuminating light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)

Abstract

Provided are a light source device capable of preventing optical efficiency from being degraded and improving the luminance of an illumination area, and a projector. The light source device is characterized by having: first and second light source means (11, 12) emitting illumination light; a light selection means (21) which selects the illumination light emitted from the first or second light source means (11, 12) and forms at least a first optical path (L1) or a second optical path (L2) guiding the selected illumination light; and a control means (31) which controls light emitting of each of the first and second light source means (11, 12). The light source device is also characterized in that the control means (31) turns off the first and second light source means (11, 12) in a transition period in which the first optical path (L1) and the second optical path (L2) are switched, turns on the first light source means (11) within a period in which the first optical path (L1) is formed, and turns on the second light source means (12) within a period in which the second optical path (L2) is formed.
PCT/JP2008/056905 2007-04-11 2008-04-07 Light source device and projector Ceased WO2008126830A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-104056 2007-04-11
JP2007104056A JP2008261998A (en) 2007-04-11 2007-04-11 Light source device and projector

Publications (1)

Publication Number Publication Date
WO2008126830A1 true WO2008126830A1 (en) 2008-10-23

Family

ID=39863927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056905 Ceased WO2008126830A1 (en) 2007-04-11 2008-04-07 Light source device and projector

Country Status (2)

Country Link
JP (1) JP2008261998A (en)
WO (1) WO2008126830A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2290443B1 (en) * 2009-08-21 2018-04-04 Casio Computer Co., Ltd. Light source device, projection apparatus, and projection method

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5412996B2 (en) * 2009-06-30 2014-02-12 カシオ計算機株式会社 Light source device, projection device, and projection method
JP4711021B2 (en) 2009-06-30 2011-06-29 カシオ計算機株式会社 Projection device
JP5625287B2 (en) * 2009-08-21 2014-11-19 カシオ計算機株式会社 Light source device, projection device, projection method and program
JP5796272B2 (en) * 2009-09-28 2015-10-21 カシオ計算機株式会社 Light source device, projection device, and projection method
JP5668286B2 (en) * 2009-12-24 2015-02-12 カシオ計算機株式会社 Projection apparatus, projection method, and program
JP5494053B2 (en) * 2010-03-16 2014-05-14 セイコーエプソン株式会社 projector
JP5534331B2 (en) * 2010-07-30 2014-06-25 カシオ計算機株式会社 Light source unit and projector
JP5404560B2 (en) 2010-08-20 2014-02-05 株式会社東芝 projector
JP5494610B2 (en) * 2011-10-17 2014-05-21 カシオ計算機株式会社 Projection apparatus, projection control method, and program
JP2012128438A (en) * 2012-02-03 2012-07-05 Casio Comput Co Ltd Light source device, projection device, and projection method
JP5672353B2 (en) * 2013-09-20 2015-02-18 カシオ計算機株式会社 Control method of light source device
JP5929995B2 (en) * 2014-10-01 2016-06-08 カシオ計算機株式会社 Rotating body and projection device
JP5930001B2 (en) * 2014-10-23 2016-06-08 カシオ計算機株式会社 Projection device
KR102240803B1 (en) * 2019-03-26 2021-04-15 (주)이투 Lighting module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000089139A (en) * 1998-09-14 2000-03-31 Sharp Corp Light source device and projection type image display device
JP2006017801A (en) * 2004-06-30 2006-01-19 Olympus Corp Light source device and image projecting device
JP2006317935A (en) * 2006-05-01 2006-11-24 Fuji Xerox Co Ltd Projector device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000089139A (en) * 1998-09-14 2000-03-31 Sharp Corp Light source device and projection type image display device
JP2006017801A (en) * 2004-06-30 2006-01-19 Olympus Corp Light source device and image projecting device
JP2006317935A (en) * 2006-05-01 2006-11-24 Fuji Xerox Co Ltd Projector device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2290443B1 (en) * 2009-08-21 2018-04-04 Casio Computer Co., Ltd. Light source device, projection apparatus, and projection method

Also Published As

Publication number Publication date
JP2008261998A (en) 2008-10-30

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