JP2012512508A - 照明手段及び同照明手段を少なくとも1つ有するプロジェクタ - Google Patents
照明手段及び同照明手段を少なくとも1つ有するプロジェクタ Download PDFInfo
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- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0087—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for illuminating phosphorescent or fluorescent materials, e.g. using optical arrangements specifically adapted for guiding or shaping laser beams illuminating these materials
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
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- H—ELECTRICITY
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- H04N9/12—Picture reproducers
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- H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
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- H—ELECTRICITY
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0071—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction
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- H—ELECTRICITY
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
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- H01S5/00—Semiconductor lasers
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- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
- H01S5/4093—Red, green and blue [RGB] generated directly by laser action or by a combination of laser action with nonlinear frequency conversion
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- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- Semiconductor Lasers (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
Description
Claims (15)
- 少なくとも1つの半導体レーザ(2)と少なくとも1つの変換手段(3)とを有する照明手段(1)であって、
前記半導体レーザ(2)は360nm以上485nm以下の波長の一次放射(P)を放出するように形成されており、
前記変換手段(3)は前記半導体レーザ(2)に後置されており、前記一次放射(P)の少なくとも一部を、前記一次放射(P)とは異なるより大きな波長を有する二次放射(S)に変換するように形成されており、
前記照明手段(1)から放出される放射(R)は最大で50μmのコヒーレンス長を有する
ことを特徴とする照明手段(1)。 - 前記変換手段(3)から出射するときの前記二次放射(S)の輝度は少なくとも部分的に少なくとも1kW/cm2である、請求項1記載の照明手段(1)。
- 前記照明手段(1)は熱伝導性の第1支持体(4)を含んでおり、前記変換手段(3)が少なくとも間接的に前記第1支持体(4)に取り付けられており、前記第1支持体(4)は前記二次放射(S)の少なくとも一部に対しては透過性又は反射性を有し、前記一次放射(P)に対しては透過性又は不透過性である、請求項1又は2記載の照明手段(1)。
- 前記照明手段(1)は前記変換手段(3)に後置された少なくとも1つのコリメータ光学系(6)を含んでおり、当該コリメータ光学系(6)を通過した後の前記二次放射(S)の放射角は少なくとも部分的に最大で10°である、請求項1から3のいずれか1項記載の照明手段(1)。
- 前記一次放射(P)によって照射される、前記変換手段(3)の少なくとも1つのスポット(7)の面積は最大で0.5mm2である、請求項1から4のいずれか1項記載の照明手段(1)。
- 少なくとも2つの半導体レーザ(2)が同一のスポット(7)を照射する、請求項1から5のいずれか1項記載の照明手段(1)。
- 前記変換手段(3)は前記第1支持体(4)と第2支持体(5)との間にあり、少なくとも間接的に前記支持体(4,5)に接触しており、前記一次放射(P)は前記支持体(4,5)の少なくとも一方を通過する、請求項1から6のいずれか1項記載の照明手段(1)。
- 前記変換手段(3)が取り付けられている前記第1支持体(4)の主面(40)は少なくとも前記二次放射(S)に対しては反射性を有するか、又は反射コーティング(8)を備えており、ビーム路(9)は前記第1支持体(4)によって方向を変化させられる、請求項1から7のいずれか1項記載の照明手段(1)。
- 前記照明手段(1)は少なくとも3つの半導体レーザ(2)を含んでおり、前記半導体レーザ(2)の少なくとも2つの半導体レーザは少なくとも1つの変換手段(3)の少なくとも2つの異なるスポット(7)を照射し、前記照明手段(1)から放出される放射(R)は赤、緑及び青の光を含んでいる、請求項1から8のいずれか1項記載の照明手段(1)。
- 前記赤、緑及び青の光は互いに独立して生成可能であり、前記ビーム路(9)の少なくとも一部を一緒に通過する、請求項1から9のいずれか1項記載の照明手段(1)。
- 前記照明手段(1)は前記二次放射(S)のビーム路(9)上に配置された少なくとも1つの変調器(11)を含んでおり、当該変調器(11)は透過又は反射によって前記二次放射(S)の強度を調節するように形成されている、請求項1から10のいずれか1項記載の照明手段(1)。
- 前記照明手段(1)から放出される放射(R)の強度及び/又は色度座標は少なくとも10MHzの周波数で変調可能である、請求項1から11のいずれか1項記載の照明手段(1)。
- 前記第1支持体(4)は機械的に可動に支承されており、互いに異なる変換手段(3)が設けられた少なくとも2つの領域(41)を有しており、前記支持体(4)の運動により前記二次放射(S)の色度座標を定めることができる、請求項1から12のいずれか1項記載の照明手段(1)。
- 前記第1支持体(4)は少なくとも40W/(m K)の熱伝導性を有しており、
少なくとも1つのピンホールアパーチャ(12)が前記変換手段(3)に後置されているか、又は前記変換手段(3)は、最大で前記スポット(7)の平均直径(d)の3倍に相当する直径(D)を有する、前記第1支持体(4)の領域(41)に取り付けられており、
偏向ユニット(13)及び/又は結像ユニット(14)が前記ビーム路(9)上に存在する、
請求項1から13のいずれか1項記載の照明手段(1)。 - 請求項1から14のいずれか1項記載の少なくとも1つの照明手段(1)と、少なくとも1つの偏向ユニット(13)及び/又は少なくとも1つの結像ユニット(14)とを有することを特徴とするプロジェクタ(10)。
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DE102008063634.7 | 2008-12-18 | ||
DE102008063634.7A DE102008063634B4 (de) | 2008-12-18 | 2008-12-18 | Leuchtmittel und Projektor mit mindestens einem solchen Leuchtmittel |
PCT/DE2009/001448 WO2010069282A2 (de) | 2008-12-18 | 2009-10-19 | Leuchtmittel und projektor mit mindestens einem solchen leuchtmittel |
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US (1) | US20120039072A1 (ja) |
EP (1) | EP2359605B1 (ja) |
JP (1) | JP5528469B2 (ja) |
KR (3) | KR101621118B1 (ja) |
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Cited By (27)
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JP2012142188A (ja) * | 2010-12-28 | 2012-07-26 | Sharp Corp | 発光装置、照明装置および車両用前照灯、ならびに、発光装置の製造方法 |
JP2013004183A (ja) * | 2011-06-13 | 2013-01-07 | Sharp Corp | 集光ユニットおよび発光装置 |
JP2015052688A (ja) * | 2013-09-06 | 2015-03-19 | カシオ計算機株式会社 | 光源装置及び投影装置 |
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WO2010069282A3 (de) | 2010-11-11 |
CN102246527B (zh) | 2014-03-12 |
JP5528469B2 (ja) | 2014-06-25 |
DE102008063634B4 (de) | 2021-03-11 |
KR101731773B1 (ko) | 2017-04-28 |
DE102008063634A1 (de) | 2010-06-24 |
WO2010069282A2 (de) | 2010-06-24 |
KR101655728B1 (ko) | 2016-09-07 |
KR20160104738A (ko) | 2016-09-05 |
EP2359605A2 (de) | 2011-08-24 |
CN102246527A (zh) | 2011-11-16 |
KR20110102472A (ko) | 2011-09-16 |
KR101621118B1 (ko) | 2016-05-13 |
US20120039072A1 (en) | 2012-02-16 |
EP2359605B1 (de) | 2013-01-02 |
KR20160047588A (ko) | 2016-05-02 |
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