WO2014068742A1 - 光源装置及び投写型映像表示装置 - Google Patents
光源装置及び投写型映像表示装置 Download PDFInfo
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- WO2014068742A1 WO2014068742A1 PCT/JP2012/078280 JP2012078280W WO2014068742A1 WO 2014068742 A1 WO2014068742 A1 WO 2014068742A1 JP 2012078280 W JP2012078280 W JP 2012078280W WO 2014068742 A1 WO2014068742 A1 WO 2014068742A1
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- WIPO (PCT)
- Prior art keywords
- excitation light
- light
- light source
- phosphor
- image display
- Prior art date
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- 230000005284 excitation Effects 0.000 claims abstract description 77
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 44
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 16
- 238000005286 illumination Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000012466 permeate Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- 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
- F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
-
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- 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
-
- 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
-
- 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
- G02B6/0005—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 of the fibre type
- G02B6/0008—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 of the fibre type the light being emitted at the end of the fibre
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
- G02B6/425—Optical features
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
-
- 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
-
- 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
- G03B21/2066—Reflectors in illumination beam
Definitions
- the present invention relates to a light source device and a projection type video display device.
- a device of an illumination optical system has been devised so as to obtain an enlarged image having sufficient size and brightness on the projection surface.
- development of projection type image display devices using solid light emitting elements such as red, green and blue light emitting diodes and organic EL has been conducted.
- Patent Document 1 there has been proposed a light source device that emits light with high efficiency even when excitation light emitted from a solid state light source is visible light (see Patent Document 1).
- Patent Document 1 since the excitation light is irradiated to the fluorescent substance in a concentrated manner, there is a problem that the luminous efficiency and the life of the fluorescent substance decrease.
- the objective of this invention is providing the light source device and projection type video display apparatus which improved the luminous efficiency and lifetime of fluorescent substance.
- the light source device includes an excitation light source that emits excitation light, a phosphor that emits fluorescence light when excited by the excitation light, and an optical member that guides the excitation light to the phosphor, and the curvature of the optical member Is set so that the excitation light transmitted through the optical member is incident on the phosphor with the tip of the phosphor as the light collecting position.
- the present invention it is possible to provide a light source device and a projection type video display device in which the luminous efficiency and the life of the phosphor are improved.
- FIG. 2 is a main part configuration diagram of a light source device in Embodiment 1.
- FIG. 7 is a main part configuration diagram of a light source device in Embodiment 2.
- FIG. 2 is a view showing an optical system of a projection type video display using the light source device of Example 1.
- FIG. 2 is a view showing an optical system of a projection type video display using the light source device of Example 1. Illustration of etendue. The principal part block diagram of the light source device assumed as a subject.
- the light source of the excitation light source group 1 is described as a laser having a small light emission area.
- the laser has a luminance distribution in which the central portion is bright and the peripheral portion is dark.
- FIG. 6 is a main part configuration diagram of a light source device assumed as a problem.
- the excitation light 10 emitted from the excitation light source group 1 becomes substantially parallel light by the collimator lens 2, passes through the convex lens 3 and the concave lens 4, narrows the luminous flux width, and enters the dichroic mirror 5.
- the dichroic mirror 5 has a characteristic of transmitting the wavelength range of the excitation light 10 and reflecting the wavelength range of the fluorescent light 11. Therefore, the excitation light 10 passes through the dichroic mirror 5, passes through the condenser lens 6, and then enters the rotation-controllable disc 9 coated with the fluorescent substance 7.
- the curvature of the condenser lens 6 is set such that the incident parallel light is condensed on the irradiation area 8 on the disc 9. That is, the light emission luminance distribution of the excitation light source group 1 is expanded on the phosphor 7 through the plurality of lens groups, and the irradiation area 8 is irradiated.
- the fluorescent substance 7 excited by the excitation light 10 emits fluorescent light 11. After passing through the condenser lens 6, the fluorescent light 11 becomes substantially parallel light, is reflected by the dichroic mirror 5, and is incident on the illumination optical system in the subsequent stage.
- the disk 9 itself is shifted in the emission direction of the excitation light 10 to condense light at one place before entering the phosphor 7, and then the excitation light 10 is irradiated to the phosphor 7 when the irradiation area is expanded, It is also conceivable to prevent the light being collected at one place on the phosphor 7.
- the fluorescent light 11 emitted from the fluorescent substance 7 can not be captured by the condenser lens 6.
- FIG. 1 is a main part configuration diagram of the light source device in the first embodiment.
- the condensing lens 6 is slightly diverged by the excitation light 10 by devising the position and the curvature radius of the convex lens 3 and the concave lens 4 or both of them. It is in the point which makes Then, the excitation light 10 transmitted through the condensing lens 6 is such that the tip of the fluorescent substance 7 is a condensing position (so that the condensing position is on the emitting side of the excitation light 10 with respect to the fluorescent substance 7) Incident on 7th.
- the curvature of the convex lens 3 is loosened so that the excitation light 10 is slightly incident on the condenser lens 6, the curvature of the concave lens 4 is tight, and the position of the convex lens 3 is several mm closer to the concave lens 4 It may be considered to adjust the position of the concave lens 4 by several millimeters toward the convex lens 3 side.
- the emitting surfaces of at least two or more optical fibers in the optical fiber group 13 may be bundled at one or more places.
- FIG. 4 is a diagram showing a configuration of a projection type video display using the light source device of the first embodiment, which is a mode different from FIG.
- the light emitted from the image display element 26 is enlarged and projected from the projection lens 27 onto the screen.
- the brightness that can be projected from the projection lens is determined by the product of the area of the image display element and the solid angle (illumination etendue) determined by the F value that is the brightness parameter of the projection lens. Since the lighting etendue has the property of being preserved, the product of the light emitting area determined on the light source side and the light ray solid angle (light source etendue) can not be made greater than the lighting etendue. Therefore, when the light emission area of the light source increases, the light beam divergence angle that can be captured by the illumination optical system decreases, and the illumination efficiency decreases.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
A×2π(1-cosθa)≒ B×2π(1-cosθb)・・・(数1)
照射領域8より発散する蛍光光は全方位に発散するが、円盤9の基板で反射するため、蛍光光の光線立体角は2πとなる。従って、(数1)は(数2)に置き換えることができる。
A×2π(1-cosθa)≒ B×2π・・・(数2)
又、投写レンズ27のF値と光線発散角θaは、(数3)が成立する。
tanθa=1/(2×F) ・・・(数3)
(数2)(数3)より、(数4)が略成立する。
B≒A×(1-cos(arctan(1/(2×F))) ・・・(数4)
投写型映像表示装置の投写レンズのF値は1.5~3.0が一般的であるため、(数4)より、励起光の照射領域8の面積Bとしては、(数5)の範囲を選択すればよい。
0.0136×A ≦ B ≦ 0.0513×A・・・(数5)
又、照射領域8における輝度分布は一定の広がりを有するため、明確に領域を定めることが難しい。そこで、照射領域8は、輝度ピークの1/e2(≒13.5%)までの領域と定義する。
Claims (5)
- 励起光を発光する励起光源と、
前記励起光に励起されることにより蛍光光を発光する蛍光体と、
前記励起光を前記蛍光体へ導く光学部材と、を備え、
前記光学部材の曲率は、当該光学部材を透過した励起光が前記蛍光体の先を集光位置として当該蛍光体に入射するように設定されている、光源装置。 - 励起光を発光する励起光源と、
前記励起光に励起されることにより蛍光光を発光する蛍光体と、
前記励起光を前記蛍光体へ導く光ファイバを備え、
前記励起光源からの励起光は、前記光ファイバに入射する、光源装置。 - 光源装置と、
映像表示素子と、
前記光源装置からの光を前記映像表示素子に照射する複数の光学素子を有する照明光学系と、
前記映像表示素子により形成された光学像を拡大して投影する投写レンズと、を備え、前記光源装置は、
励起光を発光する励起光源と、
前記励起光を励起することにより蛍光光を発光する蛍光体と、
前記励起光を前記蛍光体に導く光学部材と、を備え、
前記光学部材の曲率は、前記励起光の集光位置が、前記蛍光体に対して、当該励起光の出射側となるように設定されている、投写型映像表示装置。 - 前記蛍光体に照射される前記励起光の輝度分布は、前記映像表示素子と略相似である、請求項3記載の投写型映像表示装置。
- 前記蛍光体上に照射される励起光の輝度分布の面積をB、前記映像表示素子の面積をAとすると、 0.0136×A ≦ B ≦ 0.0513×A を満足する、請求項3又は4記載の投写型映像表示装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2012/078280 WO2014068742A1 (ja) | 2012-11-01 | 2012-11-01 | 光源装置及び投写型映像表示装置 |
CN201280076710.1A CN104769350A (zh) | 2012-11-01 | 2012-11-01 | 光源装置和投影型影像显示装置 |
US14/439,931 US9547226B2 (en) | 2012-11-01 | 2012-11-01 | Light source device and projection-type image display device |
JP2014544156A JP6072817B2 (ja) | 2012-11-01 | 2012-11-01 | 光源装置及び投写型映像表示装置 |
Applications Claiming Priority (1)
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PCT/JP2012/078280 WO2014068742A1 (ja) | 2012-11-01 | 2012-11-01 | 光源装置及び投写型映像表示装置 |
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JP (1) | JP6072817B2 (ja) |
CN (1) | CN104769350A (ja) |
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Cited By (10)
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JP2015133231A (ja) * | 2014-01-14 | 2015-07-23 | 日立金属株式会社 | 光源装置 |
JP2015135465A (ja) * | 2013-12-20 | 2015-07-27 | カシオ計算機株式会社 | 光源ユニット及び投影装置 |
JP2016018111A (ja) * | 2014-07-09 | 2016-02-01 | セイコーエプソン株式会社 | 照明装置およびプロジェクター |
JP2016039587A (ja) * | 2014-08-11 | 2016-03-22 | セイコーエプソン株式会社 | 画像処理装置及び撮像表示システム |
WO2017038000A1 (ja) * | 2015-08-28 | 2017-03-09 | パナソニックIpマネジメント株式会社 | 照明装置および照明システム |
JP2017126442A (ja) * | 2016-01-13 | 2017-07-20 | ウシオ電機株式会社 | 蛍光光源装置 |
WO2017154371A1 (ja) * | 2016-03-07 | 2017-09-14 | ソニー株式会社 | 光源装置および電子機器 |
JP2018055875A (ja) * | 2016-09-27 | 2018-04-05 | ウシオ電機株式会社 | 蛍光光源装置 |
US10447321B2 (en) | 2015-11-11 | 2019-10-15 | Smartsky Networks LLC | Spectrum scrubber |
JP2024061094A (ja) * | 2022-10-21 | 2024-05-07 | レーザーテック株式会社 | 光学装置及び照明方法 |
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JP5966843B2 (ja) * | 2012-10-18 | 2016-08-10 | ソニー株式会社 | 光源装置及び画像表示装置 |
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JP2016039587A (ja) * | 2014-08-11 | 2016-03-22 | セイコーエプソン株式会社 | 画像処理装置及び撮像表示システム |
WO2017038000A1 (ja) * | 2015-08-28 | 2017-03-09 | パナソニックIpマネジメント株式会社 | 照明装置および照明システム |
US10447321B2 (en) | 2015-11-11 | 2019-10-15 | Smartsky Networks LLC | Spectrum scrubber |
US11184043B2 (en) | 2015-11-11 | 2021-11-23 | Smartsky Networks, Llc | Spectrum scrubber |
JP2017126442A (ja) * | 2016-01-13 | 2017-07-20 | ウシオ電機株式会社 | 蛍光光源装置 |
WO2017154371A1 (ja) * | 2016-03-07 | 2017-09-14 | ソニー株式会社 | 光源装置および電子機器 |
JP2018055875A (ja) * | 2016-09-27 | 2018-04-05 | ウシオ電機株式会社 | 蛍光光源装置 |
JP2024061094A (ja) * | 2022-10-21 | 2024-05-07 | レーザーテック株式会社 | 光学装置及び照明方法 |
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US9547226B2 (en) | 2017-01-17 |
US20150293432A1 (en) | 2015-10-15 |
JP6072817B2 (ja) | 2017-02-01 |
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