WO2012108291A1 - Dispositif à source lumineuse - Google Patents

Dispositif à source lumineuse Download PDF

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Publication number
WO2012108291A1
WO2012108291A1 PCT/JP2012/052065 JP2012052065W WO2012108291A1 WO 2012108291 A1 WO2012108291 A1 WO 2012108291A1 JP 2012052065 W JP2012052065 W JP 2012052065W WO 2012108291 A1 WO2012108291 A1 WO 2012108291A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
excitation light
phosphor
source device
glass substrate
Prior art date
Application number
PCT/JP2012/052065
Other languages
English (en)
Japanese (ja)
Inventor
吉田　和弘
堀川　好広
蕪木　清幸
Original Assignee
ウシオ電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ウシオ電機株式会社 filed Critical ウシオ電機株式会社
Publication of WO2012108291A1 publication Critical patent/WO2012108291A1/fr

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Classifications

    • 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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • 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
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F21V9/45—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity by adjustment of photoluminescent elements
    • 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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • 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
    • F21Y2101/00—Point-like light sources
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers
    • 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
    • G03B21/16—Cooling; Preventing overheating

Definitions

  • the present invention relates to a light source device used for a projector or the like, and particularly to a light source device using a phosphor that converts blue laser light into excitation light and converts it into green light.
  • a light source using a light emitting diode is known as a light source used in an image projector such as a liquid crystal projector.
  • LED light emitting diode
  • the brightness at the time of projecting an image is insufficient at present, and an increase in the amount of light as a whole has been eagerly desired.
  • the amount of light from the green light source was insufficient.
  • a technique using a phosphor has been proposed in order to improve the amount of green light. For example, Japanese Patent Laid-Open No.
  • Patent Document 1 discloses a light emitting diode that applies a phosphor to a substrate made of glass or the like and emits blue light or ultraviolet light as an excitation light source for exciting the phosphor. And the use of a semiconductor laser. More specifically, a fluorescent material that emits green fluorescent light is applied to a disk-shaped glass substrate, and this disk-shaped glass substrate (so-called color filter) has a rotation mechanism that can rotate in the circumferential direction, and an excitation light source As a light source device, a light emitting diode that emits blue light is disposed.
  • the publication discloses not only a transmission type that takes out fluorescence in the direction opposite to the incident direction of excitation light, but also reflects the fluorescence from the phosphor to emit excitation light on the incident light side as shown in FIG. A so-called reflective structure is also disclosed.
  • a phosphor is applied to the color wheel and, for example, green light is emitted from the phosphor using blue light or ultraviolet light as excitation light.
  • the region of the phosphor to be applied is larger than the region directly contributing to light emission, that is, the region irradiated with excitation light. It will be much wider.
  • This phosphor is very expensive and has not been able to meet the demand for minimizing its usage.
  • the luminous efficiency decreases when the phosphor is heated and the temperature rises. To solve this problem, it is necessary to rotate the color wheel. There is a problem that a mechanism is required and the structure of the apparatus is complicated and large.
  • the reflection type structure when a phosphor is applied to a substrate having a reflection function, and excitation light is incident on the substrate and radiation from the phosphor is used, fluorescence emitted from the phosphor and excitation light are used. Therefore, there is a problem that the structure becomes complicated because the dichroic mirror that separates the two can be arranged, and the size cannot be reduced. Further, there is a problem that the excitation light incident direction and the fluorescence extraction direction cannot be arranged on the same axis, and the degree of freedom in layout is reduced.
  • the problems to be solved by the present invention include an excitation light source composed of a semiconductor laser diode, an optical system that collects the excitation light, a phosphor that emits fluorescence when excited by the collected excitation light, and the fluorescence
  • a light source device composed of a glass substrate on which a body is formed
  • the amount of phosphor used can be reduced without using a color wheel, and the phosphor can be efficiently cooled, and a complicated mechanism such as a rotating mechanism can be used.
  • the present invention provides a structure in which the size of the device can be reduced without providing the device. Further, by adopting a transmission type, it is possible to avoid a complicated structure of the apparatus and to provide a structure that can secure a degree of freedom of layout.
  • the light source device is characterized in that a cooling mechanism is provided on the glass substrate, and a window portion corresponding to the phosphor is formed in the cooling mechanism. .
  • a fluorescent reflection film that transmits excitation light and reflects fluorescence is provided between the phosphor and the excitation light source.
  • the cooling mechanism may be a heat sink in contact with the glass substrate.
  • the heat sink is provided with a cooling fin extending to the opposite side of the glass substrate.
  • the phosphor is provided on the excitation light incident side of the glass substrate, the heat sink is in contact with the excitation light incident side of the glass substrate, and the excitation light is incident on the phosphor through the window portion of the heat sink. It is characterized by being.
  • a fluorescent reflection film that transmits excitation light and reflects fluorescence is provided on the excitation light incident side of the phosphor.
  • the phosphor is formed in a window portion of the heat sink.
  • a lens for collecting the diverging fluorescence is provided on the emission side of the phosphor.
  • the glass substrate has a condensing lens function.
  • excitation light is incident on the phosphor from a plurality of excitation light sources.
  • phosphors are formed at a plurality of locations on the glass substrate, and a plurality of windows are formed at positions corresponding to the phosphors on the heat sink, and excitation light sources are respectively provided on the phosphors. It is characterized by corresponding arrangement.
  • the light source device of the present invention it is not necessary to provide a complicated device such as a rotation mechanism because the substrate coated with the phosphor has a cooling mechanism, and the region coated with the phosphor is Since the fluorescent light emitting region is used, the amount of the phosphor used can be reduced and the entire apparatus can be reduced in size. Furthermore, since a fluorescent reflection film that transmits excitation light and reflects fluorescence is provided between the phosphor and the excitation light source, the fluorescence directed toward the excitation light incident side is reflected and taken out forward. There is an effect that fluorescence can be extracted well. In addition, since the cooling mechanism is provided around the phosphor, there is an effect that the phosphor can be efficiently cooled to suppress a decrease in the light emission efficiency, and a long-life light source can be realized.
  • Sectional drawing which shows the light source device of this invention.
  • the partial expanded sectional view of FIG. The fragmentary sectional view of the other Example of this invention.
  • Sectional drawing of the other Example of this invention Sectional drawing of the other Example of this invention.
  • Sectional drawing of the other Example of this invention Sectional drawing of the other Example of this invention.
  • Sectional drawing of the other Example of this invention Sectional drawing of the other Example of this invention.
  • the light source device of the present invention has, as a basic structure, a semiconductor laser diode (hereinafter referred to as LD) that emits blue or UV excitation light.
  • An optical system 2 including a condensing lens that condenses the excitation light from the excitation light source 1, and the condensed excitation light is incident and excited by this to emit green light, etc.
  • the phosphor 3 that emits the fluorescence and the glass substrate 4 on which the phosphor 3 is formed.
  • the glass substrate 4 is provided with a cooling mechanism 5 made of a heat sink.
  • the heat sink 5 is in contact with the front side of the glass substrate 4, that is, the excitation light incident side.
  • a window 6 is formed at the center, and cooling fins 7 are formed at the front. ing.
  • the phosphor 3 is applied and formed on the glass substrate 4 so as to be located in the window portion 6.
  • the blue or UV excitation light from the semiconductor laser diode 1 is collected by the condenser lens 2, passes through the window 6 of the heat sink 5, and enters the phosphor 3.
  • the excitation light A is converted into green fluorescence B by the phosphor 3 and emitted forward through the glass substrate 4.
  • the phosphor 3 is formed on the excitation light incident side with respect to the glass substrate 4, but may be formed on the opposite side of the glass substrate 4.
  • the heat sink 5 is also in contact with the excitation light incident side of the glass substrate 4, but may be in contact with the opposite side. That is, these combinations can be adopted.
  • the arrangement shown in FIG. 1, that is, the structure in which both the phosphor 3 and the heat sink 5 are arranged on the excitation light source 1 side is preferable for the following reason. That is, when the heat sink 5 is arranged on the opposite side of the glass substrate 4, there is a disadvantage that it may be an obstacle to the emitted fluorescence, and the structure is restricted. Further, when the heat sink 5 is arranged on the excitation light incident side, the phosphor 3 can also be effectively subjected to the cooling effect of the heat sink 5 by arranging the phosphor 3 on the same excitation light incident side. For the above reasons, the arrangement shown in FIG. 1 is preferable, but this is not to limit the arrangement.
  • FIG. 3 shows a structure in which a fluorescent reflection film 8 that transmits excitation light and reflects fluorescence is disposed between the phosphor 3 and the excitation light source 1 in order to effectively return the fluorescence to the front side.
  • FIG. 3 is an enlarged view of the phosphor 3 portion.
  • the excitation light is transmitted and the fluorescence is reflected on the phosphor 3 formed on the glass substrate 4.
  • a fluorescent reflecting film 8 is formed.
  • the arrangement of the phosphor 3 and the fluorescent reflecting film 8 is not limited to this, and as shown in FIG. 3B, the phosphor 3 is formed on the front side of the glass substrate 4, that is, on the opposite side to the excitation light incident direction.
  • the fluorescent reflection film 8 may be formed on the excitation light incident side of the glass substrate 4. In this case, a part of the fluorescence C directed rearward from the phosphor 3 passes through the glass substrate 4, is reflected by the reflection film 8, and is emitted forward.
  • a fluorescent reflecting film 8 is formed on the front side of the glass substrate 4, that is, on the side opposite to the excitation light incident direction, and the phosphor 3 is formed thereon. Good. Also in this case, a part of the fluorescence C from the phosphor 3 is reflected by the reflection film 8 and emitted forward.
  • FIG. 4 shows an embodiment for this purpose.
  • a condensing lens 9 is provided in front of the glass substrate 4 from which the fluorescence is emitted. As a result, the emitted light from the phosphor 3 is collected and emitted as parallel light in this example.
  • FIG. 5 shows a modified example of the example of FIG. 4 in which the function of the condenser lens 9 of FIG.
  • the phosphor 3 is formed on this glass substrate.
  • the fluorescence from the phosphor 3 is collected and emitted by the glass substrate 40 with a condensing lens function.
  • a plurality of excitation light sources can be used for the phosphor as shown in FIG.
  • a plurality of LDs 11, 12, and 13 are provided as the excitation light source 1, and the excitation light from these is condensed by the condenser lens 2 via the collimator lenses 15 a, 15 b, and 15 c, and then on the glass substrate 4. Is incident on the phosphor 3. By doing so, a light source with higher luminance can be obtained.
  • a plurality of phosphors 3 can be provided as shown in FIG.
  • phosphors 31, 32, 33, 34 are formed on a glass substrate 4 at a plurality of locations, and a plurality of window portions 61, 62, 63, 64 is formed.
  • the excitation light sources 11, 12, 13, and 14 and the condenser lenses 21, 22, 23, and 24 are arranged to face the phosphors 3, respectively.
  • the excitation light from each excitation light source 1 is each incident on the fluorescent substance 3 via the condensing lens 2, and is converted into fluorescence here and radiated
  • the emitted light from the light source can be concentrated and emitted at the center.
  • the plurality of phosphors 3 (31 to 34) are formed so as to be adjacent to each other in a concentrated manner, and the window portions 6 (61 to 64) of the heat sink 5 are arranged in a central portion.
  • Each phosphor 3 is formed on a glass substrate 40 (41 to 44) having a lens function.
  • Each excitation light source 1 (11 to 14) is arranged so as to be inclined so as to enter the phosphor 3 (31 to 34) from an oblique direction. Thereby, it can be set as the small light source from which the fluorescence from the fluorescent substance 3 is concentrated and emitted.
  • the material that can be used as the glass substrate 4 on which the phosphor 3 is applied and formed may be any material that can transmit excitation light and fluorescence (a material that is transparent to light of the target wavelength). Higher thermal conductivity is more desirable. Specifically, the following materials can be used. Material name Thermal conductivity (W / m / k) Sapphire crystal 25 Crystallized glass 1.53 Quartz glass 1.38 Borosilicate glass 1.09 Soda glass 1
  • composition of the fluorescent reflection film that transmits excitation light and reflects fluorescence 1.
  • Europium activated ⁇ -sialon phosphor Composition SrSiAlON: Eu Excitation wavelength 300-500nm Emission wavelength 540nm 2.
  • Cerium activated YAG phosphor Composition (Y, Gd) 3 (Al, Ga) 5 O 12 : Ce 3+ Excitation wavelength 200, 340, around 450 nm Emission wavelength 530 nm Etc. can be used.
  • the light source device is an excitation light source, an optical system that collects the excitation light, and is excited by the collected excitation light to emit fluorescence to the opposite side of the excitation light source.
  • a light source device comprising a phosphor and a glass substrate on which the phosphor is formed
  • a cooling mechanism is provided on the glass substrate, and a window portion corresponding to the phosphor is formed in the cooling mechanism. Since the body can be cooled effectively and the decrease in luminous efficiency can be avoided, the amount of phosphor used can be reduced without using a large structure such as a color wheel, and a complicated device such as a rotating mechanism can be used.
  • the apparatus can be reduced in size without being provided. Further, since it is a transmissive type, it is possible to avoid the complexity of the device structure and secure the degree of freedom of layout.
  • Excitation light source semiconductor laser diode
  • Condensing engineering system Condensing lens
  • Phosphor Glass substrate
  • Glass substrate having condenser lens function Glass substrate having condenser lens function
  • Cooling mechanism heat sink
  • Window Cooling fin
  • Fluorescent reflection film Condensing lens A Excitation light B Fluorescence

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Projection Apparatus (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention a pour objet, pour un dispositif à source lumineuse comportant une source lumineuse d'excitation formée d'une diode laser à semiconducteur, un système optique qui concentre la lumière d'excitation émanant de celle-ci, un corps fluorescent qui est excité par la lumière d'excitation concentrée et qui rayonne une lumière fluorescente dans la direction opposée à la source lumineuse d'excitation, et un substrat en verre sur lequel est formé le corps fluorescent, de mettre en place une configuration permettant de minimiser la quantité d'usage du corps fluorescent sans utiliser de roue de couleur, de refroidir efficacement le corps fluorescent et de rendre le dispositif plus compact sans installer un dispositif complexe tel qu'un mécanisme tournant. A cet effet, un dispositif à source lumineuse est caractérisé en ce qu'un mécanisme de refroidissement est installé sur le substrat en verre susmentionné, et en ce qu'une partie de fenêtre correspondant au corps fluorescent susmentionné est formée dans le mécanisme de refroidissement.
PCT/JP2012/052065 2011-02-10 2012-01-31 Dispositif à source lumineuse WO2012108291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-026674 2011-02-10
JP2011026674A JP2012169049A (ja) 2011-02-10 2011-02-10 光源装置

Publications (1)

Publication Number Publication Date
WO2012108291A1 true WO2012108291A1 (fr) 2012-08-16

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WO (1) WO2012108291A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015138495A1 (fr) * 2014-03-11 2015-09-17 Osram Sylvania Inc. Ensembles convertisseurs optiques à dissipation thermique améliorée
CN107045254A (zh) * 2016-02-05 2017-08-15 精工爱普生株式会社 波长转换元件、光源装置和投影仪
EP3239597A1 (fr) * 2016-04-25 2017-11-01 LG Innotek Co., Ltd. Appareil d'éclairage
EP3239595A1 (fr) * 2016-04-18 2017-11-01 LG Innotek Co., Ltd. Appareil d'éclairage
JP2017216362A (ja) * 2016-05-31 2017-12-07 日亜化学工業株式会社 発光装置
JP2019075577A (ja) * 2018-12-26 2019-05-16 日亜化学工業株式会社 発光装置
US10527914B2 (en) 2014-10-10 2020-01-07 Sony Corporation Phosphor wheel, light source apparatus, and projection-type display apparatus
US10564531B2 (en) 2017-02-14 2020-02-18 Seiko Epson Corporation Light source device and projector
CN113204159A (zh) * 2021-05-17 2021-08-03 扬州吉新光电有限公司 一种红绿光增强的激光光源装置及波长转换层材料

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Publication number Priority date Publication date Assignee Title
WO2017038176A1 (fr) * 2015-09-03 2017-03-09 シャープ株式会社 Corps électroluminescent et dispositif d'éclairage
JP6737150B2 (ja) 2016-11-28 2020-08-05 セイコーエプソン株式会社 波長変換素子、光源装置及びプロジェクター
JP6766617B2 (ja) 2016-11-29 2020-10-14 セイコーエプソン株式会社 光源装置及びプロジェクター
JP2018106086A (ja) * 2016-12-28 2018-07-05 キヤノン株式会社 光源装置、画像投射装置および光源装置の製造方法
JP7081094B2 (ja) 2017-08-22 2022-06-07 セイコーエプソン株式会社 波長変換素子、光源装置及びプロジェクター
JP7294089B2 (ja) * 2019-11-28 2023-06-20 セイコーエプソン株式会社 光源装置およびプロジェクター

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JPH1187770A (ja) * 1997-09-01 1999-03-30 Toshiba Electron Eng Corp 照明装置、読み取り装置、投影装置、浄化装置、および表示装置
WO2007105647A1 (fr) * 2006-03-10 2007-09-20 Nichia Corporation Dispositif electroluminescent
JP2010086815A (ja) * 2008-09-30 2010-04-15 Casio Computer Co Ltd 発光装置及び光源装置並びにこの光源装置を用いたプロジェクタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1187770A (ja) * 1997-09-01 1999-03-30 Toshiba Electron Eng Corp 照明装置、読み取り装置、投影装置、浄化装置、および表示装置
WO2007105647A1 (fr) * 2006-03-10 2007-09-20 Nichia Corporation Dispositif electroluminescent
JP2010086815A (ja) * 2008-09-30 2010-04-15 Casio Computer Co Ltd 発光装置及び光源装置並びにこの光源装置を用いたプロジェクタ

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015138495A1 (fr) * 2014-03-11 2015-09-17 Osram Sylvania Inc. Ensembles convertisseurs optiques à dissipation thermique améliorée
US10374137B2 (en) 2014-03-11 2019-08-06 Osram Gmbh Light converter assemblies with enhanced heat dissipation
US10527914B2 (en) 2014-10-10 2020-01-07 Sony Corporation Phosphor wheel, light source apparatus, and projection-type display apparatus
CN107045254A (zh) * 2016-02-05 2017-08-15 精工爱普生株式会社 波长转换元件、光源装置和投影仪
EP3239595A1 (fr) * 2016-04-18 2017-11-01 LG Innotek Co., Ltd. Appareil d'éclairage
US10208939B2 (en) 2016-04-18 2019-02-19 Lg Innotek Co., Ltd. Lighting apparatus
EP3239597A1 (fr) * 2016-04-25 2017-11-01 LG Innotek Co., Ltd. Appareil d'éclairage
US10530121B2 (en) 2016-04-25 2020-01-07 Lg Innotek Co., Ltd. Lighting apparatus with improved color deviation
JP2017216362A (ja) * 2016-05-31 2017-12-07 日亜化学工業株式会社 発光装置
US10564531B2 (en) 2017-02-14 2020-02-18 Seiko Epson Corporation Light source device and projector
JP2019075577A (ja) * 2018-12-26 2019-05-16 日亜化学工業株式会社 発光装置
CN113204159A (zh) * 2021-05-17 2021-08-03 扬州吉新光电有限公司 一种红绿光增强的激光光源装置及波长转换层材料

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