公开(公告)号：US10677407B2

公开(公告)日：2020-06-09

申请号：US16245267

申请日：2019-01-11

申请人： OSRAM GmbH

发明人： Joerg Sorg

IPC分类号： F21S41/176 ,  F21S41/16 ,  F21Y115/30

摘要： An irradiation unit includes a pump radiation source for the emission of pump radiation; and a conversion element for the at least partial conversion of the pump radiation to a conversion radiation. During operation of the irradiation unit, the pump radiation is incident in the form of a beam from the pump radiation source on an incidence surface of the conversion element. A first portion of the pump radiation is incident on the conversion element in a central segment of the beam and a second portion of the pump radiation is incident on the conversion element in an edge segment of the beam surrounding the central segment. The conversion element is provided in such a way that a normalized degree of conversion and/or a normalized degree of scattering is lower for the second portion of the pump radiation than for the first portion of the pump radiation.

公开(公告)号：US10670223B2

公开(公告)日：2020-06-02

申请号：US16390000

申请日：2019-04-22

申请人： NICHIA CORPORATION

发明人： Takuya Suzuki ,  Takashi Mukai

IPC分类号： F21S45/70 ,  F21S41/176 ,  F21S41/16 ,  F21V23/00 ,  F21V23/04

摘要： A light emitting module includes a laser element and a first transistor including a first electrode connected to the laser element, a second electrode connected to a power supply, and a control electrode. A second transistor includes a first electrode connected to a second reference potential via a first resistor, a second electrode connected to a first reference potential, and a control electrode. The control electrode of the first transistor is connected to the first electrode of the second transistor and the first resistor. A conversion member is to convert a laser beam emitted by the laser element and includes a sensing wire via which the control electrode of the second transistor is connected to a third reference potential. The control electrode of the second transistor is connected to a fourth reference potential via a second resistor.

公开(公告)号：US10648911B2

公开(公告)日：2020-05-12

申请号：US15814828

申请日：2017-11-16

申请人： NICHIA CORPORATION

发明人： Toshiaki Yamashita

IPC分类号： H01L33/00 ,  G01N21/64 ,  H01S5/022 ,  H01S5/40 ,  F21K9/64 ,  H01S5/00 ,  F21S41/16 ,  F21V9/30 ,  F21S41/176 ,  H01L33/50 ,  F21Y115/30

摘要： A light emitting device includes a fluorescent material, a first laser element and a second laser element. The first laser element is configured to emit a first laser light to excite the fluorescent material. The first laser light having a first peak wavelength that is shorter than an excitation peak wavelength of the fluorescent material. The second laser element is configured to emit a second laser light to excite the fluorescent material. The second laser light has a second peak wavelength that is longer than the excitation peak wavelength of the fluorescent material.

公开(公告)号：US10606158B2

公开(公告)日：2020-03-31

申请号：US16077962

申请日：2017-03-06

申请人： SIGNIFY HOLDING B.V.

发明人： Hendrik Johannes Boudewijn Jagt ,  Dominique Maria Bruls ,  Daniël Anton Benoy ,  Dirk Kornelis Gerhardus De Boer ,  Hugo Johan Cornelissen ,  Joris Jan Vrehen ,  Jacobus Gerardus Boerekamp ,  Christoph Gerard August Hoelen

IPC分类号： G03B21/20 ,  F21V29/70 ,  F21V29/502 ,  F21K9/64 ,  F21V9/30 ,  F21S41/16 ,  H01S5/00 ,  F21S41/176 ,  F21S41/20 ,  G03B21/16 ,  F21V7/00 ,  F21V5/00 ,  F21Y101/00 ,  F21V7/22 ,  H01S5/40 ,  H01S5/323

摘要： A light emitting device (1) comprising a luminescent element (3) comprising a first face (31) and a second face (32), the first face comprising a light input surface and one of the first face and the second face comprising a light exit surface, the luminescent element (3) being adapted for receiving first light (4) with a first spectral distribution emitted by at least one laser light source (21, 22, 23) at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (5) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling at least a part of the second light with the second spectral distribution out of the light exit surface, and a heat sink element (7) arranged to be in thermal contact with at least a part of the luminescent element (3) extending between the first face (31) and the second face (32), wherein the first face (31) comprises a cross-sectional area A and the luminescent element (3) further comprises a length L being defined as the shortest distance between the first face and the second face and a characteristic length B of the cross sectional area A, the characteristic length B being defined as the square root of the cross sectional area A, and wherein, and wherein the length L and the characteristic length B of the cross sectional area A are chosen such that they satisfy any one of the relations L/B≥2*Ells/44(W/mm2) for λTHC

公开(公告)号：US10591129B2

公开(公告)日：2020-03-17

申请号：US15857675

申请日：2017-12-29

申请人： VALEO VISION

发明人： Pierre Albou

IPC分类号： F21V11/00 ,  F21S41/20 ,  F21S45/43 ,  F21S41/14 ,  F21S41/663 ,  B60Q1/08 ,  F21S41/60 ,  F21S41/155 ,  F21S41/176 ,  F21S41/153 ,  F21S45/70 ,  F21K9/64 ,  F21S41/16 ,  F21S41/125 ,  F21S41/65 ,  B60Q1/14 ,  B60Q1/20 ,  F21S45/47

摘要： The lighting device for a vehicle has two light sources and a wavelength conversion device excited by the combination of the radiations from the two light sources. A first light source is associated with a scanning system projecting, by scanning, a first light radiation onto a first conversion region of the device, while a second light source with semiconductors emits a second light radiation into a second conversion region of the device. The second source, different from the first source and whose luminance level is typically less high, is provided with light-emitting units of submillimetric dimensions. The beams produced by the device respectively in the first region and in the second region have different characteristics and complement one another to produce one or more lighting functions.

公开(公告)号：US20200049317A1

公开(公告)日：2020-02-13

申请号：US16530368

申请日：2019-08-02

申请人： SHARP KABUSHIKI KAISHA

发明人： KOJI TAKAHASHI ,  KARL PETER WELNA

IPC分类号： F21K9/64 ,  F21K9/68 ,  F21K9/61 ,  F21S41/16 ,  F21S41/176 ,  F21S41/365 ,  F21S41/40

摘要： [Object] External leakage of laser light can be prevented in a reflective type light source device.[Solution] Laser light excites a first surface (21) of a phosphor light-emitting section. (20), and a window portion (30) formed of a transparent member disposed spaced away from the first surface (21) is provided. A light leakage prevention portion (600), which inhibits the laser light reflected at the first surface (21) of the phosphor light-emitting section (20) from leaking to the outside through the window portion (30) is provided to part of the window portion (30).

公开(公告)号：US10533723B2

公开(公告)日：2020-01-14

申请号：US15816044

申请日：2017-11-17

申请人： LG Electronics Inc.

发明人： Oklyeol Lee ,  Sulki Park

IPC分类号： F21S41/25 ,  F21V29/51 ,  F21V29/76 ,  F21S43/37 ,  F21S41/20 ,  F21S41/29 ,  F21S43/40 ,  F21S43/27 ,  F21S45/47 ,  F21S41/39 ,  F21S43/20 ,  F21S41/16 ,  F21S41/176 ,  B60Q1/04 ,  B60Q1/34 ,  B60Q1/44

摘要： A light lamp for a vehicle includes a plurality of light function modules, each of the plurality of light function modules including: a light source module including: a light source configured to generate light; a light source lens disposed in front of the light source; and a reflection unit provided on a part of a front surface of the light source lens; a light distribution module disposed in front of the light source module and configured to receive the light from the light source module and to distribute the received light; and a dissipation module disposed behind the light source module and configured to dissipate heat generated by the light source.

公开(公告)号：US10508791B2

公开(公告)日：2019-12-17

申请号：US16195947

申请日：2018-11-20

申请人： OSRAM GmbH

发明人： Jan Oliver Drumm

IPC分类号： F21V9/32 ,  F21S41/176 ,  F21S41/16 ,  F21V9/30 ,  F21V13/08 ,  F21W131/406

摘要： A wavelength converter includes a converter layer for at least partly converting primary light of a first spectral composition into secondary light of a second spectral composition, an electrically insulating first insulation layer arranged below the converter layer, a mirror being arranged at the front side of said insulation layer facing the converter layer, at least one conductor track which is arranged at the first insulation layer and which extends laterally at a distance from the mirror, mutually spaced apart contacts extending through the first insulation layer, of which contacts in each case at least two contacts electrically connect a conductor track to a rear side of the first insulation layer, and mutually spaced apart electrically conductive solder connection volumes arranged below the first insulation layer, said solder connection volumes being electrically connected in each case to one of the contacts.

公开(公告)号：US10507759B2

公开(公告)日：2019-12-17

申请号：US15620990

申请日：2017-06-13

申请人： Valeo Vision

发明人： Jean-Paul Ravier ,  Benoist Fleury ,  Loic Benoit

IPC分类号： F21S41/14 ,  F21S41/675 ,  F21S41/16 ,  F21S41/176 ,  G02B26/08 ,  G02B26/10 ,  B60Q1/14 ,  B60Q1/08 ,  F21S41/37 ,  F21S41/255

摘要： An adaptive lighting system for an automotive vehicle. The adaptive lighting system has a wavelength conversion device for receiving the light radiation (L) from the primary source and re-emitting white light radiation (B). An optical imaging system receives the white light (B) re-emitted by the wavelength conversion device and projects this light (B) in front of the vehicle to form a lighting beam, the wavelength conversion device being situated close to a focal plane of the optical imaging system, and the scanning system and the optical system being situated on the same side or on opposite sides of the wavelength conversion device. An intensity of the white light radiation (B) emitted by the wavelength conversion device is capable of being modulated between a minimum value and a maximum value, and the scanning is performed at variable speed.

公开(公告)号：US20190316033A1

公开(公告)日：2019-10-17

申请号：US15770566

申请日：2016-10-28

申请人： ZKW Group GmbH

发明人： Peter HARTMANN

IPC分类号： C09K11/02 ,  C01B32/26 ,  C09K11/08 ,  F21S41/176 ,  F21S41/16 ,  F21S43/16

摘要： The invention relates to a converter (25, 35, 45, 55, 65, 75, 85, 95, 115, 125) for a lighting device, in particular for a lighting device for a motor vehicle headlight, wherein the converter comprises a converter material (24, 34, 44, 54, 64, 74, 84, 94, 114, 124) for at least partly converting a primary light, which is emitted from a primary light source, into a secondary light, wherein the secondary light has a different wavelength than the primary light, wherein the converter comprises a flat diamond support structure (20, 30, 40, 50, 60, 70, 80, 90, 110, 120) made of polycrystalline diamond with a plurality of column-shaped diamond crystals (23, 33, 43, 53, 63, 73, 83, 93, 113, 123), which form a column-shaped diamond texture, wherein regions (22, 32, 42, 52, 62, 72, 82, 92, 112, 122) of the diamond support structure comprise the converter material (24, 34, 44, 54, 64, 74, 84, 94, 114, 124), and free spaces remain between said regions, the free spaces allow the primary light to pass through the diamond support structure without being converted.