JP6551548B2 - 光混合器、およびそれを用いた複数波長均質光源 - Google Patents
光混合器、およびそれを用いた複数波長均質光源 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
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- 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
- G03B21/208—Homogenising, shaping of the illumination light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
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- G—PHYSICS
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
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- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of the light guide
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- 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
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- H—ELECTRICITY
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- H04N9/00—Details of colour television systems
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- H04N9/3152—Modulator illumination systems for shaping the light beam
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- G—PHYSICS
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- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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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]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Led Device Packages (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
Description
2 複数波長光源基板、
3 R光源、
4 G光源、
5 B光源、
6 光混合器、
7 入射面、
8 出射面、
9 散乱粒子、
10 中心軸、
11 中心軸、
12 電源、
20 成型用ケース、
21 ディスペンサ、
22 UV照射器、
23 粒子部、
24 透明部、
25 境界、
26 境界、
27 プレート、
31 複数波長均質光源、
32 筐体、
33 境界、
34 複数波長均質光源、
35 筐体、
36 複数波長均質光源、
37 透明部、
38 透明部、
39 粒子部、
40 光混合器、
41 複数波長均質光源、
42 透明部、
43 光混合器、
44 複数波長均質光源、
45 透明部、
46 光混合器、
48 複数波長光源基板、
49 Y光源、
50 複数波長光源基板、
61 複数波長均質光源、
62 光混合器、
70 映像投射装置、
71 映像生成装置、
72 投射部、
73 照明部、
74 映像生成部、
75 筐体、
76 放物線ミラー、
77 偏光ミラー、
78 マイクロディスプレイ、
79 メイン基板、
80 筐体、
81 筐体カバー、
100 使用者、
101 ヘッドマウントディスプレイ、
103 ポケットプロジェクタ、
107 ヘッドアップディスプレイ
Claims (15)
- 光源からの光を混合する光混合器であって、
透明な材料で形成されたで柱形状であり、該柱形状の上面または底面の最外径よりも側面の長さが大きく、かつ前記底面には前記光源から出射される光が入射面と、前記上面には光が出射する出射面と、
前記入射面側に位置し、透明部材で形成される第1の透明部と、
前記第1の透明部に密接し散乱粒子を含む粒子部と、を有し、
内部には、光を散乱させる機能を有する多数の前記散乱粒子を含み、
前記光混合器の側面が、光を反射する機能を有し、
前記光混合器の上面と底面が、光を透過する機能を有し、
前記入射面から入射した光が、前記側面の反射機能と、前記散乱粒子の散乱機能とによって混合され、混合された光が前記出射面から出射し、
かつ該光混合器の内部に備わった前記散乱粒子の密度を、前記入射面から前記出射面との間において異ならせた
ことを特徴とする光混合器。 - 請求項1に記載の光混合器であって、
前記散乱粒子の密度は、前記入射面側よりも前記出射面側の方が大きいことを特徴とする光混合器。 - 請求項1に記載の光混合器であって、
前記第1の透明部と前記粒子部は接合され、前記第1の透明部と前記粒子部の境界面は同じである
ことを特徴とする光混合器。 - 請求項1記載の光混合器であって、
該光混合器の前記上面または前記底面側とで、前記透明な材料の領域と、前記透明な材料と前記散乱粒子が混合した領域とで分けたことを特徴とした光混合器。 - 請求項4記載の光混合器であって、
前記散乱粒子は、透明な略球体形状とし、前記光混合器の前記透明な材料とは異なる屈折率としたことを特徴とする光混合器。 - 請求項5記載の光混合器であって、
前記光混合器の側面の長さLに対する前記上面または底面の最外径LMの比(L/LM)は、3より小さいことを特徴とする光混合器。 - 請求項6記載の光混合器であって、
前記光混合器の内部に配備された前記散乱粒子の体積密度は、1%より小さいことを特徴とする光混合器。 - 請求項7記載の光混合器であって、
前記散乱粒子の直径は、1μmないし5μmの範囲としたことを特徴とする光混合器。 - 複数波長の均質な光を出射する複数波長均質光源であって、
波長の異なる光を出射する複数の光源を具備した光源基板と、
前記光源基板に搭載された、光を混合する光混合器と、を備え、
該光混合器は、
透明な材料で形成されたで柱形状であり、該柱形状の上面または底面の最外径よりも側面の長さが大きく、かつ前記底面には前記光源から出射される光が入射面と、前記上面には光が出射する出射面と、
前記入射面側に位置し、透明部材で形成される第1の透明部と、
前記第1の透明部に密接し散乱粒子を含む粒子部と、を有し、
内部には、光を散乱させる機能を有する多数の前記散乱粒子を含み、
前記光混合器の側面が、光を反射する機能を有し、
前記光混合器の上面と底面が、光を透過する機能を有し、
前記入射面から入射した光が、前記側面の反射機能と、前記散乱粒子の散乱機能とによって混合され、混合された光が前記出射面から出射し、
かつ該光混合器の内部に備わった前記散乱粒子の密度を、前記入射面から前記出射面との間において異ならせた
ことを特徴とする複数波長均質光源。 - 請求項9に記載の複数波長均質光源であって、
前記散乱粒子の密度は、前記入射面側よりも前記出射面側の方が大きい
ことを特徴とする複数波長均質光源。 - 請求項9に記載の複数波長均質光源であって、
前記第1の透明部と前記粒子部は接合され、前記第1の透明部と前記粒子部の接合の境界面は同じである
ことを特徴とする複数波長均質光源。 - 請求項9乃至11のいずれかに記載の複数波長均質光源であって、
波長の異なる複数の前記光源が、前記光源基板に配置され、
かつ前記光混合器は、略正三角柱または、四角形、または、略正六角柱である
ことを特徴とする映像装置用の複数波長均質光源。 - 請求項12に記載の複数波長均質光源であって、
前記複数の光源として、R光源と、G光源と、B光源と、Y光源の4つの光源が、前記光源基板に略正四角形に配置され、
かつ前記光混合器は、前記配置に対応した正四角柱である、
ことを特徴とする映像装置用の複数波長均質光源。 - 請求項9乃至11のいずれかに記載の複数波長均質光源であって、
前記散乱粒子は、透明な略球体形状とし、前記光混合器の前記透明な材料とは異なる屈折率としたことを特徴とする複数波長均質光源。 - 請求項9乃至11のいずれかに記載の複数波長均質光源であって、
前記光源基板に配置された前記複数の光源と、前記光混合器の前記入射面との間は、前記光混合器の透明な材料と略同じ屈折率の材料で満たされていることを特徴とする複数波長均質光源。
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CN (1) | CN108603638A (ja) |
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JP2007067076A (ja) | 2005-08-30 | 2007-03-15 | Mitsubishi Rayon Co Ltd | 光源装置 |
JP4622925B2 (ja) * | 2006-04-07 | 2011-02-02 | セイコーエプソン株式会社 | 照明装置及びプロジェクタ |
US7864395B2 (en) * | 2006-10-27 | 2011-01-04 | Qualcomm Mems Technologies, Inc. | Light guide including optical scattering elements and a method of manufacture |
JP2010538449A (ja) * | 2007-09-04 | 2010-12-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光出力装置 |
WO2010082952A1 (en) * | 2009-01-13 | 2010-07-22 | Qualcomm Mems Technologies, Inc. | Large area light panel and screen |
JP5429574B2 (ja) * | 2011-03-07 | 2014-02-26 | カシオ計算機株式会社 | 光源装置及びプロジェクタ |
CN102914813A (zh) * | 2011-08-04 | 2013-02-06 | 鸿富锦精密工业(深圳)有限公司 | 复合型导光板及其制造方法 |
JP6045864B2 (ja) * | 2012-09-20 | 2016-12-14 | 株式会社東芝 | Led照明装置 |
CN104075232A (zh) * | 2013-03-25 | 2014-10-01 | 中央大学 | 拟真烛光灯装置 |
JP2015148730A (ja) | 2014-02-07 | 2015-08-20 | 日立アプライアンス株式会社 | Led照明用光拡散部材及びこれを用いたled照明装置 |
JP6446816B2 (ja) * | 2014-04-10 | 2019-01-09 | 日立化成株式会社 | 導光部材及びそれを用いた表示装置 |
JP6579355B2 (ja) * | 2014-09-24 | 2019-09-25 | 日立化成株式会社 | 光積分器および、それを用いた映像投射装置 |
CN104515016B (zh) * | 2014-12-19 | 2017-10-31 | 欧普照明股份有限公司 | 一种led照明灯具 |
CN105090894B (zh) * | 2015-08-21 | 2017-03-01 | 杨毅 | 波长转换装置和发光装置 |
-
2017
- 2017-02-02 CN CN201780008697.9A patent/CN108603638A/zh active Pending
- 2017-02-02 WO PCT/JP2017/003718 patent/WO2017135351A1/ja active Application Filing
- 2017-02-02 JP JP2017565618A patent/JP6551548B2/ja active Active
- 2017-02-02 KR KR1020187016095A patent/KR20180081765A/ko active IP Right Grant
- 2017-02-02 US US15/781,157 patent/US20190004408A1/en not_active Abandoned
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CN108603638A (zh) | 2018-09-28 |
TWI654458B (zh) | 2019-03-21 |
TW201732339A (zh) | 2017-09-16 |
KR20180081765A (ko) | 2018-07-17 |
US20190004408A1 (en) | 2019-01-03 |
WO2017135351A1 (ja) | 2017-08-10 |
JPWO2017135351A1 (ja) | 2018-09-13 |
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