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公开(公告)号：US10281638B2
公开(公告)日：2019-05-07
申请号：US15007226
申请日：2016-01-27
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Yen-I Chou , Chi Chen , Chun-Hsien Lu
Abstract: A wavelength converting module includes a wavelength converting unit. The wavelength converting unit is at least made of a phosphor material. The wavelength converting unit is a solid rod-shaped structure, in which two opposite end surfaces of the rod-shaped wavelength converting unit are a light-entrance surface and a light-exit surface respectively.
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公开(公告)号：US10120272B1
公开(公告)日：2018-11-06
申请号：US15693497
申请日：2017-09-01
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Yen-I Chou , Chi Chen
CPC classification number: G03B21/204 , G03B21/16 , G03B21/28 , G03B33/08
Abstract: A fluorescent color wheel includes a substrate, a working fluid, and a fluorescent powder layer. The substrate has at least one flow channel therein. The flow channel has a first end and a second end respectively adjacent to a central region and a peripheral region of the substrate. The working fluid flows in the flow channel in a gas-liquid coexistence state. The fluorescent powder layer is disposed on the substrate and located at the peripheral region. The disclosure further discloses a projector adopting the fluorescent color wheel.
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公开(公告)号：US09891511B2
公开(公告)日：2018-02-13
申请号：US14686321
申请日：2015-04-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Yen-I Chou , Chi Chen , Jau-Shiu Chen , Meng-Han Liu
CPC classification number: G03B21/204 , C09K11/02 , C09K11/08 , G03B21/16 , H01L33/507
Abstract: An illumination system includes a solid-state light-emitting element and a wavelength-converting device. A first waveband light is emitted to an optical path by the solid-state light-emitting element. The wavelength-converting device is disposed on the optical path and includes a phosphor plate. The phosphor plate is a solid mixture having a phosphor agent and a binder. The weight percent of the phosphor agent is from 10 to 70, such that the first waveband light is transformed into a second waveband light. Under this circumstance, the efficiency of heat conduction of the phosphor plate is effectively enhanced, thereby enhancing the converting efficiency of the wavelength-converting device, which is strong enough to be applied to rotate with great rigidity. Meanwhile, not only the space requirement is reduced, but also the phenomena of hot spot and heat diffusion are avoided, such that the cost and difficulty of manufacturing the wavelength-converting device are significantly reduced.
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公开(公告)号：US09753277B2
公开(公告)日：2017-09-05
申请号：US15140457
申请日：2016-04-27
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Yen-I Chou , Chi Chen , Chun-Hsien Lu
CPC classification number: G02B26/008 , G02B5/0242 , G02B5/0284 , G02B5/0294 , G02B5/08 , G02B5/22 , G02B5/223 , G02B5/226 , G02B5/26 , G03B21/204
Abstract: A wavelength conversion device includes a substrate, a reflective member, and a wavelength conversion member. The reflective member is disposed on the substrate and includes a continuous-phase material and nano particles. The nano particles are distributed in the continuous-phase material. A refractive index of the continuous-phase material is different from a refractive index of the nano particles. The wavelength conversion member is disposed on the reflective member. The reflective member is configured to reflect the light converted from the wavelength conversion member to output.
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公开(公告)号：US09291884B2
公开(公告)日：2016-03-22
申请号：US14041803
申请日：2013-09-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wei-Ting Chen , Che-Hao Fan , Ru-Shi Liu , Keh-Su Chang , Chi Chen , Yen-I Chou
CPC classification number: G03B21/204 , G03B33/04 , G03B33/12 , H04N9/3111 , H04N9/3158 , H04N9/3182
Abstract: The disclosure provides a method for regulating a light wavelength of a projection device. The method comprises the following steps. A single-color light source is provided and emits a first chromatic light. A phosphor layer is formed on an optical path of the single-color light source, so that the first chromatic light transmits the phosphor layer. The phosphor layer transforms a part of the first chromatic light to a second chromatic light, and emits the residual first chromatic light. The residual first chromatic light is further mixed with the second chromatic light to generate a third chromatic light. The wavelength of the third chromatic light is regulated by adjusting the proportion of the luminous intensity of the residual first chromatic light and the second chromatic light.
Abstract translation: 本公开提供了一种用于调节投影装置的光波长的方法。 该方法包括以下步骤。 提供单色光源并发射第一色光。 在单色光源的光路上形成荧光体层，使得第一色光透过荧光体层。 荧光体层将第一色光的一部分转换为第二色光，并发射残留的第一色光。 剩余的第一色光与第二色光进一步混合以产生第三色光。 通过调节残留第一色光和第二色光的发光强度的比例来调节第三色光的波长。
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Patent Agency Ranking
6.发明申请FLUORIDE FLUORESCENT COMPOSITION AND WAVELENGTH-CONVERTING DEVICE OF PROJECTOR USING SAME 审中-公开氟化物荧光体组合物和使用其的投影仪的波长转换装置公开(公告)号：US20150232751A1
公开(公告)日：2015-08-20
申请号：US14489912
申请日：2014-09-18
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chun-Che Lin , Ru-Shi Liu , Keh-Su Chang , Yen-I Chou , Chi Chen
CPC classification number: C09K11/675 , C09K11/616 , G02B26/008 , G03B21/204
Abstract: A fluoride fluorescent composition contains a tetravalent manganese ion and 2.7 to 7 fluorine atoms, among which the tetravalent manganese ion is doped so as to be a luminescent center. By the advantage of thermal stability of the fluoride fluorescent composition, the luminance, the purity and the quality of projection of the projector are enhanced.
Abstract translation: 氟化物荧光体组合物含有四价锰离子和2.7〜7个氟原子，其中四价锰离子掺杂成发光中心。 通过氟化物荧光组合物的热稳定性的优点，提高了投影仪的亮度，纯度和投影质量。
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公开(公告)号：US20180031207A1
公开(公告)日：2018-02-01
申请号：US15467300
申请日：2017-03-23
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Yen-I Chou , Chi Chen , Chun-Hsien Lu
IPC: F21V9/16 , F21V29/502 , G03B21/20
CPC classification number: F21V9/30 , G03B21/16 , G03B21/204
Abstract: A phosphor wheel includes a substrate, at least a phosphor agent and a plurality of vortex generators. The substrate has a first region and a second region. The second region has a plurality of openings. The phosphor agent is disposed on the first region for converting the wavelength of waveband light. Each vortex generator includes at least a guide vane. Each guide vane is disposed on the second region, and the projection, which is on the second region, of each guide vane is corresponded to one of the openings, such that a vortex is generated during a rotation of the substrate. Therefore, the efficiency of heat exchange is enhanced, the temperature of light spot is reduced, and further the output efficiency of light of the phosphor agent is increased.
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公开(公告)号：US20170277029A1
公开(公告)日：2017-09-28
申请号：US15403995
申请日：2017-01-11
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Yen-I Chou , Chi Chen , Chun-Hsien Lu
CPC classification number: G03B21/204 , B32B7/04 , B32B9/005 , B32B9/007 , B32B9/041 , B32B15/04 , B32B15/20 , B32B17/00 , B32B2250/02 , B32B2255/06 , B32B2307/204 , B32B2307/302 , B32B2307/40 , B32B2307/412 , B32B2307/416 , B32B2307/422 , B32B2457/00 , F21V9/30 , G03B33/06 , H04N9/3105 , H04N9/3114 , H04N9/3158 , H04N9/3161 , H04N9/3164
Abstract: A phosphor device of an illumination system emitting a first waveband light and having an optical path includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. The first waveband light is received and converted into a second waveband light by the first phosphor agent. The second waveband light is directed to the optical path. The range of the spectrum of the second waveband light includes at least a first color light and a second color light, so that the first color light or the second color light is separated from the second waveband light along the optical path. Therefore, the diversity of the design of the phosphor device is enhanced, the manufacturing cost and the size of product are reduced, and the color purity is enhanced.
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公开(公告)号：US09753276B2
公开(公告)日：2017-09-05
申请号：US14842302
申请日：2015-09-01
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Han Liu , Keh-Su Chang , Jau-Shiu Chen , Yen-I Chou , Chi Chen
CPC classification number: G02B26/008 , G02B27/141 , G03B21/204 , G03B33/08
Abstract: A wavelength-converting device includes a first substrate, a second substrate and a first wavelength-converting material. The first substrate has a first region and a first engagement portion. The second substrate is disposed adjacent to the first substrate and having a second region and a second engagement portion. The second engagement portion and the first engagement portion have complementary shapes. The first wavelength-converting material is disposed on the second region for converting a light in a first waveband into a light in a second waveband. The light in the first waveband is transmitted through the first region, and the light in the second waveband is reflected by the second region. The first region and the second region are staggered, so that the first engagement portion and the second engagement portion are engaged and fixed with each other. As a result, the safety and stability are enhanced, and the noise is reduced.
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公开(公告)号：US09696013B2
公开(公告)日：2017-07-04
申请号：US14755378
申请日：2015-06-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Keh-Su Chang , Jau-Shiu Chen , Yen-I Chou , Chi Chen
CPC classification number: F21V13/08 , F21V14/08 , G02B26/008 , H01L33/50
Abstract: An illumination device includes a solid-state light-emitting element, and a wavelength-converting device with a transmissive substrate, a phosphor layer and a reflective optical layer. The transmissive substrate has a refraction coefficient ns greater than an ambient refraction coefficient namb. The phosphor layer is disposed over a side of the transmissive substrate and the reflective optical layer is disposed over a side of the transmissive substrate opposite to the phosphor layer. The reflective optical layer has an effective refraction coefficient nr. The relation between ns, namb and nr is given by nr>2(namb2)/ns.
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