JP2011182345A5 - - Google Patents
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- JP2011182345A5 JP2011182345A5 JP2010047238A JP2010047238A JP2011182345A5 JP 2011182345 A5 JP2011182345 A5 JP 2011182345A5 JP 2010047238 A JP2010047238 A JP 2010047238A JP 2010047238 A JP2010047238 A JP 2010047238A JP 2011182345 A5 JP2011182345 A5 JP 2011182345A5
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- lighting
- sources
- light sources
- 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.)
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Claims (4)
- 複数の光源と、
前記複数の光源に電源を供給する複数の光源電源と、
前記複数の光源のそれぞれの点灯履歴に応じて、該複数の光源から少なくとも一つの光源を選択して点灯させるように前記複数の光源電源を制御する点灯制御手段と、を有し、
前記点灯制御手段は、前記複数の光源のうち第1の光源の前記点灯履歴が所定の規定値に達した後、前記複数の光源のうち第2の光源を連続して点灯させ、
前記第2の光源の前記点灯履歴が所定の寿命規定値に達した後、前記第1の光源を点灯させることを特徴とする投写型表示装置。 - 前記点灯制御手段は、前記第2の光源に電源を供給する前記光源電源に点灯指令を出力しても該第2の光源が点灯しない場合、前記第1の光源を点灯させるように制御することを特徴とする請求項1に記載の投写型表示装置。
- 前記点灯履歴は、前記複数の光源のそれぞれの累積点灯時間または点灯回数であることを特徴とする請求項1または2に記載の投写型表示装置。
- 前記複数の光源それぞれの光量を測定する光量測定手段を更に有し、
前記点灯履歴は、前記複数の光源それぞれの前記光量または光量変化率であることを特徴とする請求項1または2に記載の投写型表示装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010047238A JP5517679B2 (ja) | 2010-03-04 | 2010-03-04 | 投写型表示装置 |
US13/031,790 US8491130B2 (en) | 2010-03-04 | 2011-02-22 | Projection display apparatus having plural light sources |
EP11001504.7A EP2367055B1 (en) | 2010-03-04 | 2011-02-23 | Projection display apparatus |
CN2011100486158A CN102196219B (zh) | 2010-03-04 | 2011-03-01 | 投影显示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010047238A JP5517679B2 (ja) | 2010-03-04 | 2010-03-04 | 投写型表示装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011182345A JP2011182345A (ja) | 2011-09-15 |
JP2011182345A5 true JP2011182345A5 (ja) | 2011-11-04 |
JP5517679B2 JP5517679B2 (ja) | 2014-06-11 |
Family
ID=43899667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010047238A Active JP5517679B2 (ja) | 2010-03-04 | 2010-03-04 | 投写型表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8491130B2 (ja) |
EP (1) | EP2367055B1 (ja) |
JP (1) | JP5517679B2 (ja) |
CN (1) | CN102196219B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6440477B2 (ja) * | 2014-12-09 | 2018-12-19 | キヤノン株式会社 | 光源制御装置および画像投射装置 |
DE102017219502A1 (de) | 2017-11-02 | 2019-05-02 | Bayerische Motoren Werke Aktiengesellschaft | Beleuchtungsvorrichtung für ein Kraftfahrzeug |
DE102017219504A1 (de) | 2017-11-02 | 2019-05-02 | Bayerische Motoren Werke Aktiengesellschaft | Beleuchtungsvorrichtung für ein Kraftfahrzeug |
CN110874000B (zh) * | 2018-08-30 | 2021-08-31 | 中强光电股份有限公司 | 投影装置及其光源系统与投影方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3154191B2 (ja) | 1992-05-12 | 2001-04-09 | ソニー株式会社 | 液晶プロジェクタ |
US5386250A (en) * | 1993-08-09 | 1995-01-31 | Philips Electronics North America Corp. | Two-source illumination system |
JP3455614B2 (ja) * | 1995-08-04 | 2003-10-14 | 三菱電機株式会社 | 投写型表示装置 |
JPH0996786A (ja) | 1995-09-29 | 1997-04-08 | Matsushita Electric Ind Co Ltd | 投射型表示装置 |
US20040052076A1 (en) * | 1997-08-26 | 2004-03-18 | Mueller George G. | Controlled lighting methods and apparatus |
JPH11149061A (ja) * | 1997-09-12 | 1999-06-02 | Minolta Co Ltd | 光源装置および照明装置 |
WO2006023149A2 (en) * | 2004-07-08 | 2006-03-02 | Color Kinetics Incorporated | Led package methods and systems |
JP4534647B2 (ja) * | 2004-07-29 | 2010-09-01 | 株式会社日立製作所 | 投写型表示装置及びマルチスクリーンシステム |
US20060044952A1 (en) * | 2004-08-26 | 2006-03-02 | Texas Instruments Incorporated | Multiple path illumination for image display systems |
JP2008216840A (ja) * | 2007-03-07 | 2008-09-18 | Mitsubishi Electric Corp | 投写型表示装置 |
JP5399035B2 (ja) * | 2007-10-24 | 2014-01-29 | 三洋電機株式会社 | 投写型映像表示装置 |
JP2010282027A (ja) * | 2009-06-04 | 2010-12-16 | Sanyo Electric Co Ltd | 投写型映像表示装置 |
-
2010
- 2010-03-04 JP JP2010047238A patent/JP5517679B2/ja active Active
-
2011
- 2011-02-22 US US13/031,790 patent/US8491130B2/en not_active Expired - Fee Related
- 2011-02-23 EP EP11001504.7A patent/EP2367055B1/en not_active Not-in-force
- 2011-03-01 CN CN2011100486158A patent/CN102196219B/zh not_active Expired - Fee Related
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