Patent
Fluorescent light source device
井上 正樹,Masaki Inoue,政治 北村,Seiji Kitamura +3 more
- 03 Feb 2014
85
TL;DR: In this paper, a fluorescent light-source device was proposed, which is characterized by the provision of a wavelength conversion member in the form of a florescent material that is excited by excitation light.
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Abstract: The purpose of the present invention is to provide a fluorescent-light-source device in which, when a wavelength conversion member is exposed to excitation light, backscattering of said excitation light is minimized and fluorescent light generated inside the wavelength conversion member is utilized effectively and emitted to the outside with high efficiency, yielding a high light-emission efficiency. This fluorescent-light-source device is characterized by the provision of a wavelength conversion member in the form of a florescent material that is excited by excitation light. This fluorescent-light-source device is further characterized in that: a periodic structure comprising substantially cone-shaped protrusions arrayed in a periodic fashion is formed on an excitation-light-receiving surface on the wavelength conversion member; the aspect ratio of said periodic structure, namely the quotient of the heights of the protrusions and the period of the periodic structure, is at least 0.2; and said period falls within a range within which fluorescent light emitted by the florescent material is diffracted.
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Citations
Patent
Light Emitting Device
Shunpei Yamazaki,Takeshi Fukunaga +1 more
- 27 Mar 2014
TL;DR: By doping an organic compound functioning as an electron donor (hereinafter referred to as donor molecules) into an organics layer contacting a cathode, donor levels can be formed between respective LUMO (lowest unoccupied molecular orbital) levels between the cathode and the organic compound layer, and therefore electrons can be injected from the cathodes, and transmission of the injected electrons can also be performed with good efficiency as discussed by the authors.
236
Patent
Wavelength conversion element, light source device, and projector
Akira Egawa,Shigeo Nojima,Shimizu Tetsuo +2 more
- 15 Sep 2015
TL;DR: In this paper, a wavelength conversion element includes a substrate, a reflecting surface disposed between a surface of the wavelength conversion layer on an opposite side to the reflecting surface and the reflecting section, and adapted to totally reflect light having been input at an angle no smaller than a critical angle out of the fluorescence.
148
Patent
Information communication terminal, information distribution apparatus, information distribution system, content management method, broadcast reception method, information distribution method, programs and storage medium
Izuru Tanaka,Hiraku Inoue +1 more
- 12 Feb 2014
TL;DR: In this paper, a data distribution component, system, and method for data distribution is presented, which includes circuitry and a memory, which is configured to communicate with a plurality of devices, provide content identification data specifying a content item, provide an opportunity to purchase the content item to the plurality of users, after a purchase process.
20
Patent
Wavelength conversion member, light-emitting device, and method for manufacturing wavelength conversion member
Shunsuke Fujita,俊輔 藤田,Tadahito Furuyama,忠仁 古山 +3 more
- 10 Jan 2012
TL;DR: In this paper, a wavelength conversion member is characterized by having: a phosphor layer 1 including a glass matrix and an inorganic phosphor powder dispersed in the glass matrix; a glass layer 2 having a refractive index equal to or lower than the refractive indices of the inorganic powder, the glasslayer 2 being disposed on the surface of the polysilicon layer 1.
16
Patent
Light source device
Akiko Fujiuchi,Daisuke Ohama,Toshiaki Shoji +2 more
- 13 Dec 2012
TL;DR: A light source device includes a light-emitting part, a light guide including a columnar part whose central axis direction is a lengthwise direction, and a support part, including a throughhole that penetrates from one face to another face formed therein, that holds an end of the light guide holder on a side of a first opening on the one face of the through-hole so as to allow sliding in the length-wise direction as discussed by the authors.
15
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Patent
Light source unit and projector
Masakuni Iwanaga
- 13 May 2009
TL;DR: In this article, a light source unit comprising a luminescent wheel with luminescence emitting portions to emit blue and green rays, a primary light source shining an excitation light to the luminecent light emitting portions, a secondary light source emitting a red ray, and a light guiding optical system guiding the rays from the lumininecenters and the ray from the secondary light sources to the same optical path is presented.
308
Patent
Light-emitting module
Takaaki Komatsu,Yasuaki Tsutsumi,Hisayoshi Daicho +2 more
- 24 May 2010
TL;DR: In this article, the disclosed light-emitting module (40) is provided with an LED chip (42), a sheet-shaped phosphor layer (44), which is arranged so as to face a light emitting surface (42a) of the LED chip, and which converts the wavelength of the light emitted by the LEDs.
178
Void-induced thermal impedance in power semiconductor modules: some transient temperature effects
D.C. Katsis,J.D. van Wyk +1 more
- 30 Sep 2001
TL;DR: In this article, the effect of accelerated aging on solder bond voiding and on thermal transient behavior is investigated, where commercially packaged TO-247 style MOSFETs are power cycled, imaged, and thermally analyzed to generate a correlation between void percentage and thermal impedance.
163
Patent
Wavelength conversion element, light source device, and projector
Akira Egawa,Shigeo Nojima,Shimizu Tetsuo +2 more
- 15 Sep 2015
TL;DR: In this paper, a wavelength conversion element includes a substrate, a reflecting surface disposed between a surface of the wavelength conversion layer on an opposite side to the reflecting surface and the reflecting section, and adapted to totally reflect light having been input at an angle no smaller than a critical angle out of the fluorescence.
148
Patent
Light source device and projector
Toyooka Takashi
- 08 Nov 2012
TL;DR: In this paper, a light source device consisting of a first light source section that has a first LBE body and outputs first light; a second LBE has a second SBE and outputs second light; and a light guiding section for guiding the first light and the second light to a light valve that modulates light is presented.
146
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