JP2020123573A - 光変換器 - Google Patents
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- JP2020123573A JP2020123573A JP2020047180A JP2020047180A JP2020123573A JP 2020123573 A JP2020123573 A JP 2020123573A JP 2020047180 A JP2020047180 A JP 2020047180A JP 2020047180 A JP2020047180 A JP 2020047180A JP 2020123573 A JP2020123573 A JP 2020123573A
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- 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
-
- 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
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/12—Combinations of only three kinds of elements
- F21V13/14—Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0066—Reflectors for light sources specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/38—Combination of two or more photoluminescent elements of different materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
- H01S5/0608—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch
- H01S5/0609—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch acting on an absorbing region, e.g. wavelength convertors
- H01S5/0611—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch acting on an absorbing region, e.g. wavelength convertors wavelength convertors
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/06—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out ultraviolet radiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
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- F21Y2115/30—Semiconductor lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01S5/0087—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/02208—Mountings; Housings characterised by the shape of the housings
- H01S5/02212—Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02253—Out-coupling of light using lenses
Abstract
Description
これらの問題に対処するために、基板内に燐光性材料を体積内に分散配置する方法が発明された。薄い被覆を用いる現在のシステムと比べた、体積内に分散配置された基板の利点は数多くあり、本明細書で述べられる。利点の1つは、非コヒーレント光へのレーザ光の変換が増大することであり、これは光変換のために使用可能な燐光体の量から生じる。現在の薄い燐光体の表面被覆は、変換前の光ですぐに飽和され、一度に少ない量の光しか変換することができず、システム効率を非常に減少させる。現在の技術を用いて光変換燐光体の量を増加させることを試みることは極めて困難となり、なぜなら、コヒーレント光は一方向にのみ進み、したがって、燐光体の層の厚さを増加させることを必要とする(これは透過およびしたがって有効性を妨げる)か、または燐光体の層を極端に大きな領域にわたって分散させることを必要とするからである。体積型堆積方法を用いることは、コヒーレント光のより大きな放出ビームの必要性を生じることなく、コヒーレント光の変換において、より大きな量の燐光体が利用されることを可能にする。変換のために利用される燐光体の量における増加は、同じ入力を用いて、より多くの非コヒーレント光が発生されることを意味し、したがってシステムはより効率的となる。さらに、より多くのコヒーレント光が非コヒーレント光に変換されるので、最終の光源システムから発散する危険なコヒーレントレーザ光が存在する可能性が低下する。
図1を参照すると、固体光源100が示される。光源100は、標準の電子構成部品パッケージの内側に配置された半導体レーザの形態であるレーザダイオード101を含む。レーザダイオード101は、パッケージから出る電源ピン102を有する。レーザダイオード101は、例えば400〜480nm、好ましくは430〜470nmの範囲内のコヒーレント光をもたらす。ビーム103は、レーザダイオード101が発生するレーザ光のコヒーレントビームである。ビーム103は、体積型スペクトル変換器104(例えばPMMAであり、これには燐光体の粒子が体積内に分散配置される)に突き当たり、相互作用する。変換器104はしたがって、入射コヒーレントレーザビーム103を出射広スペクトル光105に変換する。光105は、非限定的に白色などの任意の指定の色とすることができ、媒体104内に配置された燐光体の化学組成によって決まる。
第1のスペクトルを有する放出性放射源と、
放出性放射源からの放出を方向付けるように位置付けられた光学要素と、
体積型スペクトル変換器であって、放出性放射源から方向付けられた放出を、第1のスペクトルとは異なる第2のスペクトルを有する放出に変換するように位置付けられた、体積型スペクトル変換器と、
変換器の周りに位置付けられた光反射器と、
出力フィルタであって、反射器は、変換器の放出を出力フィルタに向かって反射するように位置付けられる、出力フィルタと、
内部空洞を有するパッケージ本体であって、空洞は、放出性放射源、光学要素、変換器、反射器、およびフィルタを含み、所望の光が空洞からフィルタを通って放射する、パッケージ本体と
を備えた集積化光源。
Claims (19)
- 集積化光源であって、
第1のスペクトルを有する放出性放射源と、
前記放出性放射源からの放出を方向付けるように位置付けられた光学要素と、
ボリューメトリックスペクトル変換器であって、前記放出性放射源から方向付けられた放出を、前記第1のスペクトルとは異なる第2のスペクトルを有する放出に変換するように位置付けられた、ボリューメトリックスペクトル変換器と、
前記変換器の周りに位置付けられた光反射器と、
出力フィルタであって、前記反射器は、前記変換器の放出を前記出力フィルタに向かって反射するように位置付けられる、出力フィルタと、
内部空洞を有するパッケージ本体であって、前記空洞は、前記放出性放射源、光学要素、変換器、反射器、およびフィルタを含み、所望の光が前記空洞から前記フィルタを通って放射する、パッケージ本体と
を備えた集積化光源。 - 前記放射源は、400nmから480nmの範囲で動作する、請求項1に記載の光源。
- 前記放射源は、430nmから470nmの範囲で動作する、請求項2に記載の光源。
- 前記光学要素は、前記放出性放射源の放出を前記変換器上に、平行化する、収束的に焦点を合わせる、または発散的に焦点を合わせることができる、請求項1に記載の光源。
- 前記光反射器は、全方向性の光の方向を所望の光経路へと変える、請求項1に記載の光源。
- 前記光反射器は、光の方向を変える前記光反射器の能力を強化する反射性材料の層を含む、請求項5に記載の光源。
- 前記変換器は、前記放出性放射源からの前記放出を、異なる波長の、より狭いスペクトルの、またはより広いスペクトルの非コヒーレント放射の放出に変換する、請求項1に記載の光源。
- 前記変換器は、一様な複合材を形成するように、非変換材料の基板内にボリューメトリック的に配置された変換材料から構成される、請求項7に記載の光源。
- 前記変換器は、押し出し、被覆、積層、ブレンディング、混合、または懸濁の少なくとも1つを含むプロセスを用いて作成される、請求項8に記載の光源。
- 前記変換器を作成する前記プロセスは、ブレンドされたまたは多層の固体複合材として前記変換材料を用いた前記基板の押し出しである、請求項9に記載の光源。
- 前記固体複合材は、2〜500,000の間の数の層を有する、請求項9に記載の光源。
- 前記変換器は、1ミクロンより大きい、ボイド、閉じ込められた気体、気泡、意図的に要求される材料以外のいずれの材料の不純物粒子、気相または液相のいずれの種類の閉じ込められた液体を含むいずれの欠陥も有しない、請求項8に記載の光源。
- 前記変換器は1つまたは複数の燐光体を含み、前記燐光体はそれぞれ、安定した波長または可変の波長の放射の放出をもたらす特定の粒子サイズを有する、請求項8に記載の光源。
- 前記変換器は、指定された最終用途の性能指標を得るために調整されることができる1つまたは複数の変換材料を、前記基板に対してある比で有する、請求項8に記載の光源。
- 前記変換器は、前記基板に対して体積で5%と15%の間の比の変換材料を有する、請求項14に記載の光源。
- 前記変換器は、指定された最終用途の性能指標を得るために調整されることができる、厚さおよび直径が変化することのできる寸法を有する、請求項8に記載の光源。
- 前記変換器は、0.5mmと5mmの間の厚さ、および0.5mmと5mmの間の半径を有する、請求項16に記載の光源。
- 前記フィルタは、前記変換器によって変換されなかった前記放出性放射源からのいずれの放出も除去すると共に、任意選択で、前記放出された光をさらに状態調節する、請求項1に記載の光源。
- 前記デバイスからの前記放出された放射スペクトルの放出幾何形状は、適切な光構成部品を含めることにより、さらに状態調節され、方向付けされ、焦点合わせされ、平行化され、反射され、屈折され、回折され、または他のやり方で変更されることができる、請求項1に記載の光源。
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US (3) | US10488018B2 (ja) |
EP (1) | EP3338310A4 (ja) |
JP (3) | JP6680868B2 (ja) |
CN (2) | CN107924976B (ja) |
HK (1) | HK1252715A1 (ja) |
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JP6680868B2 (ja) | 2015-08-17 | 2020-04-15 | インフィニット アースロスコピー インコーポレーテッド, リミテッド | 光源 |
US11330963B2 (en) | 2015-11-16 | 2022-05-17 | Lazurite Holdings Llc | Wireless medical imaging system |
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CN107924976B (zh) | 2021-01-08 |
HK1252715A1 (zh) | 2019-05-31 |
US10488018B2 (en) | 2019-11-26 |
EP3338310A4 (en) | 2019-02-27 |
JP2023078115A (ja) | 2023-06-06 |
WO2017031138A1 (en) | 2017-02-23 |
CN107924976A (zh) | 2018-04-17 |
US20200063945A1 (en) | 2020-02-27 |
CN112600063A (zh) | 2021-04-02 |
US20180245775A1 (en) | 2018-08-30 |
EP3338310A1 (en) | 2018-06-27 |
US20210388951A1 (en) | 2021-12-16 |
JP2018525794A (ja) | 2018-09-06 |
US11137117B2 (en) | 2021-10-05 |
JP6680868B2 (ja) | 2020-04-15 |
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