JP5268429B2 - 画像表示装置および照明光学系 - Google Patents

画像表示装置および照明光学系 Download PDF

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Publication number
JP5268429B2
JP5268429B2 JP2008139362A JP2008139362A JP5268429B2 JP 5268429 B2 JP5268429 B2 JP 5268429B2 JP 2008139362 A JP2008139362 A JP 2008139362A JP 2008139362 A JP2008139362 A JP 2008139362A JP 5268429 B2 JP5268429 B2 JP 5268429B2
Authority
JP
Japan
Prior art keywords
light
light beam
polarization
conversion element
polarization conversion
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.)
Expired - Fee Related
Application number
JP2008139362A
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English (en)
Japanese (ja)
Other versions
JP2009288408A (ja
JP2009288408A5 (enExample
Inventor
勇樹 前田
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP2008139362A priority Critical patent/JP5268429B2/ja
Priority to EP09160915A priority patent/EP2128695A3/en
Priority to US12/472,263 priority patent/US8142022B2/en
Publication of JP2009288408A publication Critical patent/JP2009288408A/ja
Publication of JP2009288408A5 publication Critical patent/JP2009288408A5/ja
Application granted granted Critical
Publication of JP5268429B2 publication Critical patent/JP5268429B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G03B21/2073—Polarisers in the lamp house
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G02B27/285—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining comprising arrays of elements, e.g. microprisms
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3164—Modulator illumination systems using multiple light sources
    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light 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
    • G03B21/2013—Plural light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
JP2008139362A 2008-05-28 2008-05-28 画像表示装置および照明光学系 Expired - Fee Related JP5268429B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008139362A JP5268429B2 (ja) 2008-05-28 2008-05-28 画像表示装置および照明光学系
EP09160915A EP2128695A3 (en) 2008-05-28 2009-05-22 Image display apparatus comprising plural light sources
US12/472,263 US8142022B2 (en) 2008-05-28 2009-05-26 Image display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008139362A JP5268429B2 (ja) 2008-05-28 2008-05-28 画像表示装置および照明光学系

Publications (3)

Publication Number Publication Date
JP2009288408A JP2009288408A (ja) 2009-12-10
JP2009288408A5 JP2009288408A5 (enExample) 2011-06-30
JP5268429B2 true JP5268429B2 (ja) 2013-08-21

Family

ID=41066747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008139362A Expired - Fee Related JP5268429B2 (ja) 2008-05-28 2008-05-28 画像表示装置および照明光学系

Country Status (3)

Country Link
US (1) US8142022B2 (enExample)
EP (1) EP2128695A3 (enExample)
JP (1) JP5268429B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5567844B2 (ja) * 2010-01-29 2014-08-06 日立コンシューマエレクトロニクス株式会社 投写型映像表示装置
WO2012114522A1 (ja) * 2011-02-25 2012-08-30 日立コンシューマエレクトロニクス株式会社 投写型映像表示装置
TWI483000B (zh) * 2012-02-22 2015-05-01 Delta Electronics Inc 極化轉換元件組及包含該極化轉換元件組之投影裝置
CN102621789B (zh) * 2012-04-20 2014-06-18 杭州研明光电技术有限公司 采用混合光源的紧凑型液晶投影光引擎系统
CN204964979U (zh) * 2015-09-22 2016-01-13 广景视睿科技（深圳）有限公司 一种投影照明光路
JP6826426B2 (ja) * 2016-12-21 2021-02-03 ローム株式会社 照明ユニットおよび検査システム
EP4057062A4 (en) 2019-12-25 2023-01-04 Sony Group Corporation LIGHTING DEVICE AND DISPLAY DEVICE
CN116047849B (zh) * 2020-04-30 2025-09-02 中强光电股份有限公司 照明系统及投影装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4090094B2 (ja) * 1997-09-19 2008-05-28 株式会社長野光学研究所 光源装置
JP2000199883A (ja) * 1998-10-29 2000-07-18 Fujitsu Ltd 反射型プロジェクタ装置
JP2000155291A (ja) * 1998-11-19 2000-06-06 Nikon Corp ライトバルブ照明装置
JP2000180795A (ja) * 1998-12-18 2000-06-30 Nec Corp プロジェクタ装置
US6497488B1 (en) * 1999-08-06 2002-12-24 Ricoh Company, Ltd. Illumination system and projector
JP2001125049A (ja) * 1999-10-29 2001-05-11 Cabin Industrial Co Ltd 光合成器及びそれを用いた照明用光源並びにそれらを用いた液晶プロジェクター
EP1115255A1 (en) * 2000-01-04 2001-07-11 CTX Opto-Electronics Corporation Liquid crystal projector with two light sources
JP2001264697A (ja) * 2000-03-17 2001-09-26 Fujitsu General Ltd プロジェクタ装置
JP4043723B2 (ja) * 2001-02-09 2008-02-06 株式会社リコー 照明装置
JP2003066374A (ja) * 2001-08-23 2003-03-05 Fuji Photo Film Co Ltd 照明装置
TWI235263B (en) * 2002-05-14 2005-07-01 Sony Corp Illuminating optical system, image display unit and method of illuminating space modulation element
JP3645890B2 (ja) * 2002-06-07 2005-05-11 Ｎｅｃビューテクノロジー株式会社 プロジェクタ装置
JP4200772B2 (ja) * 2003-01-28 2008-12-24 セイコーエプソン株式会社 照明装置およびプロジェクタ
JP4143435B2 (ja) * 2003-02-12 2008-09-03 キヤノン株式会社 照明光学系
JP4143444B2 (ja) * 2003-03-07 2008-09-03 キヤノン株式会社 照明光学系
JP2004309667A (ja) * 2003-04-03 2004-11-04 Sony Corp 照明装置及び画像表示装置
JP4817639B2 (ja) * 2004-10-14 2011-11-16 キヤノン株式会社 照明光学系及びそれを用いた画像表示装置
JP5002154B2 (ja) * 2005-12-27 2012-08-15 キヤノン株式会社 投射型画像表示装置
TWI292051B (en) * 2006-01-19 2008-01-01 Coretronic Corp Illumination system and projection apparatus
WO2007142141A1 (ja) * 2006-06-02 2007-12-13 Panasonic Corporation 照明光学装置及び投写型表示装置
JP2008003125A (ja) * 2006-06-20 2008-01-10 Seiko Epson Corp 照明装置及びプロジェクタ

Also Published As

Publication number Publication date
US20090296047A1 (en) 2009-12-03
EP2128695A2 (en) 2009-12-02
US8142022B2 (en) 2012-03-27
JP2009288408A (ja) 2009-12-10
EP2128695A3 (en) 2010-04-14

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