JP4121477B2 - 照明装置及び投写型映像表示装置 - Google Patents
照明装置及び投写型映像表示装置 Download PDFInfo
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- JP4121477B2 JP4121477B2 JP2004104413A JP2004104413A JP4121477B2 JP 4121477 B2 JP4121477 B2 JP 4121477B2 JP 2004104413 A JP2004104413 A JP 2004104413A JP 2004104413 A JP2004104413 A JP 2004104413A JP 4121477 B2 JP4121477 B2 JP 4121477B2
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0961—Lens arrays
-
- 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
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1026—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators
- G02B27/1033—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators having a single light modulator for all colour channels
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- 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
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/149—Beam splitting or combining systems operating by reflection only using crossed beamsplitting surfaces, e.g. cross-dichroic cubes or X-cubes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
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- 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
Description
2R、2G、2B 集光レンズ 3R、3G、3B 第1フライアイレンズ
4 ダイクロイックプリズム(色合成手段) 5 第2フライアイレンズ
6 第1コンデンサレンズ 7 第2コンデンサレンズ
8 TIRプリズム 9 DMD(デジタルマイクロミラー素子)
10 投写レンズ 30 有効領域
31 LED素子(単位光源) 33 単位レンズ
91 受光面(照射面) 100 投写型映像表示装置
201 光源制御部 202 ライトバルブ制御部
H 長辺 V 短辺
P ピッチ PS 画像信号
Claims (16)
- 単位光源の群が配列してなる光源と、
前記単位光源の群に対向して配列した集光レンズの群と前記集光レンズの群に対向して配列した矩形の単位レンズの群とを有し前記単位レンズの群の各々は対向する前記単位光源が発生し対向する前記集光レンズを透過した光を集光するレンズアレイと、
前記単位レンズの群の各々を通過した前記光源の光を、照射面へ重なり合って斜め入射するように集光する照射光学系とを備え、
前記単位レンズの群は、当該単位レンズの群を配置し得る領域として前記照射光学系により定まる矩形の有効領域内に間隙をもって配列しており、前記単位レンズの群の各々の一辺は前記有効領域の一辺に対して45°に傾斜している照明装置。 - 前記単位レンズの群の各々のアスペクト比が2未満であって、前記単位レンズの群は、当該単位レンズの群の各々の短辺の長さをVとして前記有効領域の直交する二辺に沿って√2×Vのピッチをもって配列している請求項1記載の照明装置。
- 前記単位レンズの群の各々のアスペクト比が2を超えており、前記単位レンズの群は、当該単位レンズの群の各々の長辺の長さをHとして前記有効領域の直交する二辺に沿って(1/√2)×Hのピッチをもって配列している請求項1記載の照明装置。
- 単位光源の群が配列してなる光源と、
前記単位光源の群に対向して配列した集光レンズの群と前記集光レンズの群に対向して配列した矩形の単位レンズの群とを有し前記単位レンズの群の各々は対向する前記単位光源が発生し対向する前記集光レンズを透過した光を集光するレンズアレイと、
前記単位レンズの群の各々を通過した前記光源の光を、照射面へ重なり合って斜め入射するように集光する照射光学系とを備え、
前記単位レンズの群は、当該単位レンズの群を配置し得る領域として前記照射光学系により定まる矩形の有効領域内に配列しており、前記単位レンズの群の各々の一辺は前記有効領域の一辺に対して45°に傾斜しており、
前記単位レンズの群の各々のアスペクト比が2であって、前記単位レンズの群は、当該単位レンズの群の各々の短辺の長さをVとして前記有効領域の直交する二辺に沿って√2×Vのピッチをもって配列している照明装置。 - 前記単位光源の群が、前記単位レンズの群と同一ピッチで配列している請求項1乃至4の何れかに記載の照明装置。
- 前記集光レンズの群が前記単位レンズの群と同一ピッチで配列している請求項1乃至5の何れかに記載の照明装置。
- 前記単位レンズの群が、一体化した成型品である請求項1乃至6の何れかに記載の照明装置。
- 前記各集光レンズは、互いに対向する複数のレンズの組を有しており、前記集光レンズの群のうち、前記複数のレンズの組のうちの少なくとも1つが配列してなる群が、一体化した成型品である請求項1乃至7の何れかに記載の照明装置。
- 前記光源が、波長の異なる3色の光を個別に発生する第1乃至第3光源を有しており、
前記照射光学系は、
前記第1乃至第3光源から前記照射面へ至る光路に介挿されることにより前記3色の光を合成する色合成手段を備える請求項1乃至8の何れかに記載の照明装置。 - 前記3色が、赤色、緑色及び青色である請求項9記載の照明装置。
- 前記第1乃至第3光源を時分割により順次に点灯させる光源制御部を更に備える請求項9又は10記載の照明装置。
- 前記単位光源が発光ダイオードである請求項1乃至11の何れかに記載の照明装置。
- 前記単位光源がレーザ光源である請求項1乃至11の何れかに記載の照明装置。
- 請求項1乃至13の何れかに記載の照明装置と、
前記照明装置の前記照射面に配置されたライトバルブと、
前記ライトバルブからの出射光を投写する投写光学系とを備える投写型映像表示装置。 - 前記ライトバルブが微小偏向ミラー光学素子である請求項14記載の投写型映像表示装置。
- 前記ライトバルブがDMDである請求項15記載の投写型映像表示装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2004104413A JP4121477B2 (ja) | 2004-03-31 | 2004-03-31 | 照明装置及び投写型映像表示装置 |
CNB2005100559007A CN100510947C (zh) | 2004-03-31 | 2005-03-17 | 照明装置及投射式影像显示装置 |
US11/088,722 US7303291B2 (en) | 2004-03-31 | 2005-03-25 | Illumination apparatus and video projection display system |
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JP2004104413A JP4121477B2 (ja) | 2004-03-31 | 2004-03-31 | 照明装置及び投写型映像表示装置 |
Publications (2)
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JP2005292293A JP2005292293A (ja) | 2005-10-20 |
JP4121477B2 true JP4121477B2 (ja) | 2008-07-23 |
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US (1) | US7303291B2 (ja) |
JP (1) | JP4121477B2 (ja) |
CN (1) | CN100510947C (ja) |
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JP2005292293A (ja) | 2005-10-20 |
CN1677226A (zh) | 2005-10-05 |
CN100510947C (zh) | 2009-07-08 |
US20050219847A1 (en) | 2005-10-06 |
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