TWI795436B - Solid state light source device - Google Patents
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Description
本發明涉及一種投影機光源裝置,尤指一種結構精簡的固態光源裝置。 The invention relates to a light source device for a projector, in particular to a solid-state light source device with a simplified structure.
鐳射投影儀是一種新型的投影設備,因其投影出的圖像具有更大的色域、更高的亮度、對比度以及色飽和度,已受到人們的廣泛關注。 Laser projector is a new type of projection equipment, because the projected image has a larger color gamut, higher brightness, contrast and color saturation, it has been widely concerned by people.
先前的鐳射投影儀光源裝置的光源發出的第一顏色光束,所述第一顏色的光束經過一個兩向分色鏡的反射後投射至一個螢光色輪後會產生一個第二顏色的光束及一個第三顏色的光束,第二顏色的光束及第三顏色的光束被所述螢光色輪反射後再穿過所述兩向分色鏡;而部分所述第一顏色的光束穿過螢光色輪後再經過至少三個反射鏡的反射後入射至所述兩向分色鏡的另一側,經過所述兩向分色鏡的反射後與所述第二顏色及第三顏色的光進行合光。最後,混合光束通過光導管等進行光束的勻光及消除光斑的運作,光源裝置的結構複雜。 The light beam of the first color emitted by the light source of the previous laser projector light source device, the light beam of the first color is reflected by a two-way dichroic mirror and projected to a fluorescent color wheel to generate a light beam of the second color and A light beam of a third color, a light beam of a second color and a light beam of a third color are reflected by the fluorescent color wheel and then pass through the dichroic mirror; and part of the light beam of the first color passes through the fluorescent color wheel The light color wheel is incident on the other side of the dichroic mirror after being reflected by at least three reflectors, and then combined with the second color and the third color after being reflected by the dichroic mirror. Light is synthesized. Finally, the mixed light beam passes through the light guide and so on to perform the operations of homogenizing the light beam and eliminating the light spot, and the structure of the light source device is complicated.
鑒於上述狀況,有必要提供一種結構精簡的固態光源裝置。 In view of the above situation, it is necessary to provide a solid-state light source device with a simplified structure.
一種固態光源裝置,包括一個光源組、一個合光裝置及一個導光組件,所述光源組包括一個鐳射光源、一個散射鏡以及一個螢光散射鏡, 所述鐳射光源產生的鐳射光束分為兩束,一束照射所述散射鏡產生第一顏色光,另一束照射所述螢光散射鏡產生第二顏色光,所述散射鏡及所述螢光散射鏡位於所述合光裝置中,所述合光裝置為一半橢圓狀中空反射鏡,所述合光裝置將所述第一顏色光及所述第二顏色光混合聚光後投射入所述導光組件中。 A solid-state light source device, including a light source group, a light combination device and a light guide assembly, the light source group includes a laser light source, a scattering mirror and a fluorescent scattering mirror, The laser light beam generated by the laser light source is divided into two beams, one beam irradiates the scattering mirror to generate light of the first color, and the other beam irradiates the fluorescent scattering mirror to generate light of the second color. The light scattering mirror is located in the light combination device, the light combination device is a semi-elliptical hollow reflector, and the light combination device mixes the light of the first color and the light of the second color and then projects it into the light. in the light guide assembly.
相較於先前技術,本發明的固態光源裝置,通過所述鐳射光源具有的高亮度,投射所述螢光散射鏡,藉以激發出所需要的顏色光,再配合所述散射鏡散射的鐳射光源的顏色光,通過合光裝置彙集,投射入所述導光組件,合光光束亮度高,色彩鮮豔,可有效提高所述投影機的流明亮度且結構精簡。 Compared with the prior art, the solid-state light source device of the present invention, through the high brightness of the laser light source, projects the fluorescent scattering mirror to excite the required color light, and cooperates with the laser light source scattered by the scattering mirror. The colored light is collected by the light combination device and projected into the light guide assembly. The combined light beam has high brightness and bright colors, which can effectively improve the brightness of the projector and has a simplified structure.
100:固態光源裝置 100: Solid state light source device
10:光源組 10: Light source group
11:鐳射光源 11:Laser light source
110:鐳射產生器 110:Laser generator
12:散射鏡 12: Diffuser mirror
13:螢光散射鏡 13: Fluorescent diffuser
14:透鏡組 14: Lens group
20:合光裝置 20: Combined light device
30:導光組件 30: Light guide component
31:色輪 31: Color wheel
32:反射鏡 32: Mirror
33、34:透鏡 33, 34: lens
40:菱鏡組 40: Prism group
50:數位微鏡顯示裝置 50:Digital micromirror display device
60:投影鏡頭組 60:Projection lens group
b:鐳射光束 b: laser beam
B:藍色光 B: blue light
Y:黃色光 Y: yellow light
圖1係本發明一個實施例中的固態光源裝置的光路徑示意圖。 FIG. 1 is a schematic diagram of the light path of a solid-state light source device in an embodiment of the present invention.
下面將結合本發明實施方式中的附圖,對本發明實施方式中的技術方案進行清楚、完整地描述,顯然,所描述的實施方式僅僅是本發明一部分實施方式,而不是全部的實施方式。 The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.
基於本發明中的實施方式,本領域普通技術人員在沒有做出創造性勞動前提下所獲得的所有其他實施方式,都屬於本發明保護的範圍。 Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
本文所使用的所有的技術和科學術語與屬於本發明的技術領域的技術人員通常理解的含義相同。本文中在本發明的說明書中所使用的術語只是為了描述具體的實施方式的目的,不是旨在於限制本發明。 All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention.
請參閱圖1所示,為本發明提供的一種固態光源裝置100的光路徑示意圖。所述固態光源裝置100包括一個光源組10、一個合光裝置20、一個導光組件30、一個菱鏡組40、一個數位微鏡顯示裝置50以及一個投影鏡頭組60。所述光源組10主要在於產生具有高亮度的二色光,然後通過所述合光裝置20將所述二色光集合成合光光束並投射至所述導光組件30以光的折射進行所述合光光束的勻光及消除光斑的運作。所述導光組件30是一個光導管(Light Tunnel)。經過所述導光組件30的所述合光光束,再通過導光組件30後設置的色輪31及反射鏡32導引投射至所述菱鏡組40。所述色輪31與反射鏡32之間設置有一個透鏡33,所述反射鏡32與所述菱鏡組40之間同樣設置有一個透鏡34,所述透鏡33、透鏡34用以聚集所述合光光束。所述菱鏡組40是由二個菱鏡組合形成的反向全內反射菱鏡(RTIR,Reverse Total Internal Reflection)。所述菱鏡組40先將所述經過勻光處理的合光光束以全內反射投射至所述數位微鏡顯示裝置50(DMD,Digital Micro-mirror Device)上。所述數位微鏡顯示裝置50於接受所述合光光束後構成影像光束,所述影像光束再通過所述菱鏡組40反向折射至所述投影鏡頭組60,從而所述數位微鏡顯示裝置50構成的影像可以被投射出去。
Please refer to FIG. 1 , which is a schematic diagram of a light path of a solid-state
所述光源組10包括一個鐳射光源11、一個散射鏡12以及一個螢光散射鏡13。其中所述鐳射光源11包括至少一個鐳射產生器110,用以產生一個鐳射光束b。所述散射鏡12以及所述螢光散射鏡13位於所述合光裝置20中。本實施方式中,所述鐳射光源11以數個鐳射產生器110為一組,所述鐳射產生器110組由四個組成,產生具有較高亮度的鐳射光束b。所述鐳射光源11產生的鐳射光束b分為兩束,一束照射所述散射鏡12產生發散的第一顏色光,另一束照射所述螢光散射鏡13產生發散的第二顏色光。
The
所述鐳射光源11前端具有一個透鏡組14,所述透鏡組14用以聚集所述鐳射光源11發射的所述鐳射光束b。本實施方式,所述鐳射光束b為藍色光,所述第一顏色光為藍色光B,所述第二顏色光為黃色光Y。
The front end of the
所述第一顏色光的光路徑,是穿過位於所述鐳射光源11前端的合光裝置20後,被位於所述合光裝置20前端的散射鏡12散射導向所述合光裝置20。
The light path of the first color light passes through the
所述螢光散射鏡13的受光表面上具有一光照區,所述光照區受所述鐳射光源11產生的所述鐳射光束b照射。本實施例中,所述光照區具有螢光層,優選的,所述螢光散射鏡13為螢光粉與玻璃燒熔在一起產生的螢光玻璃片,或是在晶體生長過程中參入螢光物質產生的螢光晶體然後裁切成形。所述螢光層受所述鐳射光源11的藍色鐳射光束b的照射會激發產生黃色光Y,所述黃色光Y的光路徑,通過所述螢光散射鏡13的受光表面一側散射向位於所述螢光散射鏡13外的所述合光裝置20,並被所述合光裝置20反射導向所述導光組件30。
The light-receiving surface of the
所述合光裝置20為一半橢圓狀中空反射鏡,所述散射鏡12及所述螢光散射鏡13靠近所述合光裝置20的焦點設置。所述合光裝置20接收所述散射鏡12散射的藍色光B以及所述螢光散射鏡13受光表面受鐳射光束b激發產生的黃色光Y,經混合聚光後產生所述合光光束,投射入所述導光組件30。
The light combining
所述合光裝置20接收所述鐳射光源11高亮度的藍色光B以及所述鐳射光源11的鐳射光束b照射所述螢光散射鏡13受光表面激發產生的黃色光Y,經混合聚光後產生所述合光光束,能夠提高所述合光光束的亮度。換言之,所述光源組10所產生的二色光(藍、黃顏色光),因為包含有所述鐳射光源11的高亮度特性,因此可增加所述投影機投射時的光亮度,一併可以
調節鐳射光源11照射所述散射鏡12及所述螢光散射鏡13的比例來自由調節投影光線的色溫,提升所述攜帶型投影機的應用效能。
The light-combining
本發明固態光源裝置,所述合光光束包括藍色光B以及鐳射產生的黃色光Y,其中所述藍色光B為鐳射光源11產生的高強度的鐳射,所述黃色光Y為鐳射光源11照射螢光散射鏡13受光表面產生的,經所述合光裝置混合後的所述合光光束亮度高,色彩更鮮豔,可有效提高所述投影機的流明亮度且結構精簡。
The solid-state light source device of the present invention, the combined light beam includes blue light B and yellow light Y generated by laser light, wherein the blue light B is high-intensity laser light generated by
另外,以上所述,僅是本發明的較佳實施方式而已,並非對本發明任何形式上的限制,雖然本發明已將較佳實施方式揭露如上,但並非用以限定本發明,任何熟悉本專業的技術人員,在不脫離本發明技術方案範圍內,當可利用上述揭示的技術內容做出些許更動或修飾為等同變化的等效實施方式,但凡是未脫離本發明技術方案內容,依據本發明的技術實質對以上實施方式所做的任何簡單修改、等同變化與修飾,均仍屬於本發明技術方案的範圍內。 In addition, the above description is only the preferred implementation mode of the present invention, and does not limit the present invention in any form. Although the preferred implementation mode of the present invention has been disclosed above, it is not used to limit the present invention. Anyone familiar with this field Those skilled in the art, within the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent implementations with equivalent changes, but as long as they do not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.
100:固態光源裝置 100: Solid state light source device
10:光源組 10: Light source group
11:鐳射光源 11:Laser light source
110:鐳射產生器 110:Laser generator
12:散射鏡 12: Diffuser mirror
13:螢光散射鏡 13: Fluorescent diffuser
14:透鏡組 14: Lens group
20:合光裝置 20: Combined light device
30:導光組件 30: Light guide component
31:色輪 31: Color wheel
32:反射鏡 32: Mirror
33、34:透鏡 33, 34: lens
40:菱鏡組 40: Prism group
50:數位微鏡顯示裝置 50:Digital micromirror display device
60:投影鏡頭組 60:Projection lens group
b:鐳射光束 b: laser beam
B:藍色光 B: blue light
Y:黃色光 Y: yellow light
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US20120314442A1 (en) * | 2011-06-13 | 2012-12-13 | Sharp Kabushiki Kaisha | Light projection apparatus, light condensing unit, and light emitting apparatus |
US20130027962A1 (en) * | 2011-07-25 | 2013-01-31 | Sharp Kabushiki Kaisha | Light source device, lighting device, vehicular headlight, and vehicle |
TW201403111A (en) * | 2012-03-20 | 2014-01-16 | Dow Corning | Light guide and associated light assemblies |
CN104880899A (en) * | 2011-12-04 | 2015-09-02 | 深圳市光峰光电技术有限公司 | Light-emitting device and applied projection system thereof |
US20180100627A1 (en) * | 2015-06-10 | 2018-04-12 | Olympus Corporation | Illumination apparatus |
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US20120314442A1 (en) * | 2011-06-13 | 2012-12-13 | Sharp Kabushiki Kaisha | Light projection apparatus, light condensing unit, and light emitting apparatus |
US20130027962A1 (en) * | 2011-07-25 | 2013-01-31 | Sharp Kabushiki Kaisha | Light source device, lighting device, vehicular headlight, and vehicle |
CN104880899A (en) * | 2011-12-04 | 2015-09-02 | 深圳市光峰光电技术有限公司 | Light-emitting device and applied projection system thereof |
TW201403111A (en) * | 2012-03-20 | 2014-01-16 | Dow Corning | Light guide and associated light assemblies |
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