公开(公告)号：US11035536B2

公开(公告)日：2021-06-15

申请号：US16074444

申请日：2016-12-02

申请人： OSRAM GmbH

发明人： Jasmin Muster ,  Ricarda Schoemer ,  Jenny Trommer ,  Oliver Hering ,  Jürgen Hager

IPC分类号： F21S41/141 ,  F21S41/14 ,  F21S41/16 ,  F21S41/176 ,  B60Q1/04 ,  F21Y115/30 ,  F21Y115/10 ,  F21Y113/00

摘要： An illumination device for emitting illumination light, comprising: a light-emitting diode (LED) for emitting LED radiation, a laser for emitting laser radiation, and a luminescent element for at least partial conversion of the LED radiation and the laser radiation into conversion light, which forms at least part of the illumination light. The LED, the laser and the luminescent element are arranged relative to one another in such a way that during operation of the illumination device, on an incidence face of the luminescent element, respectively in a time integral, the LED irradiates an LED irradiation area with the LED radiation and the laser irradiates a laser irradiation area with the laser radiation. The laser irradiation area has at least one intersection with the LED irradiation area.

公开(公告)号：US10995922B2

公开(公告)日：2021-05-04

申请号：US16880674

申请日：2020-05-21

申请人： HELLA GmbH & Co. KGaA

发明人： Ingo Moellers ,  Sebastian Nordhoff ,  Wolfgang Pohlmann ,  Wolf Alexander Quitsch

IPC分类号： F21S41/176 ,  F21S41/25 ,  F21S41/153 ,  F21Y115/10 ,  F21W102/20

摘要： A lighting device for a vehicle, in particular headlights for a vehicle, having a plurality of light sources, from which light is emitted during operation of the lighting device, projection optics for projecting the light, and a generator for generating a light distribution in the exterior of the vehicle, which has a soft transition in the vertical direction from a central region to the near field and/or the far field of the light distribution. The generator has a plurality of converters which change the wavelength spectrum of the light emitted from the light sources. The lighting device being designed in such a way that during operation of the lighting device, at least one first region of at least one of the converters is subjected to a greater luminous flux density of the light emitted from the light sources as a second region of the at least one converter.

公开(公告)号：US20210041073A1

公开(公告)日：2021-02-11

申请号：US16979605

申请日：2019-03-05

申请人： OSRAM OLED GmbH

发明人： Jasmin MUSTER ,  Dennis SPRENGER ,  Joerg SORG ,  Sergey KUDAEV ,  Andreas DOBNER ,  Melanie ZUMKLEY

IPC分类号： F21S41/176 ,  F21S41/16 ,  H01S5/00 ,  H01S5/024 ,  H01S5/022 ,  H01S5/323

摘要： An irradiation unit is disclosed that includes a pump radiation source for emitting pump radiation in the form of a beam, a conversion element for at least partially converting the pump radiation into conversion radiation, and a support on which the conversion element is situated. The support accommodates a through-hole through which the beam including the pump radiation is incident on an incident surface of the conversion element, the though-hole being laterally delimited by an inner wall face of the support, at least one portion of the face tapering in the direction of the incident surface. During operation, the pump radiation conducted in the beam is at least intermittently at least in part, incident on the inner wall face of the support and is reflected thereby onto the incident surface.

公开(公告)号：US10895358B2

公开(公告)日：2021-01-19

申请号：US16623931

申请日：2018-06-25

申请人： SMR Patents S.à.r.l.

发明人： Simon Belcher ,  James Nicholson ,  Sam Thoday

IPC分类号： F21S41/16 ,  F21S41/176 ,  H01S3/063 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/17

摘要： A laser light source apparatus includes a laser diode, a first optical assembly having one or more lenses for generating a collimated laser beam from light emitted by the laser diode, a doped microstructured glass block configured to generate laser emissions at at least a first wavelength and a second wavelength when pumped by the collimated laser beam, an input beam lens for focusing the collimated laser beam onto an input surface of the microstructured glass block, an optical alignment assembly, an output light guiding assembly, and a housing for containing and supporting the optical alignment assembly and the output light guiding assembly.

公开(公告)号：US20200370724A1

公开(公告)日：2020-11-26

申请号：US16992461

申请日：2020-08-13

申请人： PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.

发明人： Kazuhiko YAMANAKA ,  Hideki KASUGAI ,  Hirotaka UENO ,  Kimihiro MURAKAMI

IPC分类号： F21S41/16 ,  F21V29/502 ,  F21S2/00 ,  F21S41/176 ,  F21V7/24 ,  H01L33/00 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62

摘要： A light emitting device includes a wavelength conversion element, and an excitation light source which radiates excitation light to the wavelength conversion element. The wavelength conversion element includes a support member having a supporting surface, and a wavelength conversion member disposed on the supporting surface so as to be contained within the support member when the support member is viewed from the supporting surface side. An outer peripheral region on the support member, which is an outer peripheral portion of an arrangement region including the wavelength conversion member and is exposed from the wavelength conversion member, includes a light absorbing portion which can absorb first light having same wavelength as the excitation light or a light scattering portion which can scatter the first light. The arrangement region includes a reflective member which is disposed between the wavelength conversion member and the support member, and is different from the support member.

公开(公告)号：US10794569B2

公开(公告)日：2020-10-06

申请号：US16483874

申请日：2018-02-09

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Yoshihisa Nagasaki ,  Takashi Ohbayashi ,  Takahiro Hamada ,  Yukihiko Sugio ,  Yusuke Ogihara

IPC分类号： F21V9/30 ,  F21S41/176 ,  F21S41/16 ,  F21Y115/30 ,  H01S5/022 ,  G02B5/20

摘要： A wavelength conversion member of the present disclosure includes a first matrix, phosphor particles embedded in the first matrix, and at least one selected from the group consisting of first filler particles embedded in the first matrix and surface coating layers respectively covering surfaces of the phosphor particles. The wavelength conversion member satisfies at least one relationship selected from the group consisting of |n3−n1|>|n1−n2| and |n4−n1|>|n1−n2| wherein n1 is a refractive index of the first matrix, n2 is a refractive index of the phosphor particles, n3 is a refractive index of the first filler particles, and n4 is a refractive index of the surface coating layers.

公开(公告)号：US10760755B2

公开(公告)日：2020-09-01

申请号：US15705560

申请日：2017-09-15

申请人： VARROC LIGHTING SYSTEMS, S.R.O.

发明人： Joachim Brandel ,  Markus Klein ,  Tomas Kreml ,  Jan Kratochvil

IPC分类号： F21S41/14 ,  F21S45/70 ,  F21S41/16 ,  H01S5/00 ,  H01S5/068 ,  F21S41/176 ,  H01S5/024 ,  F21S41/19 ,  F21V29/51 ,  F21S41/25 ,  F21S45/47 ,  F21S41/20 ,  F21V25/04 ,  F21V25/10

摘要： A lighting system for automobiles is proposed which includes a laser light source emitting a primary laser light bundle within a solid angle area around a beam direction, a photoluminescence element positioned within the emitted primary light beam, and a protective element that protects against stray laser rays. The photoluminescence element is configured to absorb the laser rays impinging on said element and by means of the photoluminescence to radiate secondary light rays. The lighting system includes a protection system with a protective element of an elongated shape having a first end and a second end, wherein the first end of the protective element is positioned within the beam direction of the primary light beam and downstream of the photoluminescence element.

公开(公告)号：US10724705B2

公开(公告)日：2020-07-28

申请号：US16449474

申请日：2019-06-24

申请人： STANLEY ELECTRIC CO., LTD.

发明人： Yuta Yamaguchi

IPC分类号： F21S45/70 ,  F21S41/16 ,  F21S41/675 ,  F21S41/25 ,  F21S41/176 ,  B60Q11/00

摘要： A light source apparatus includes: a laser light source; a fluorescent material plate including a laser beam irradiation region and being capable of emitting light generated by irradiating the laser beam irradiation region with a laser beam; a light scanning mechanism capable of scanning the laser beam irradiation region with the laser beam; a first transparent conductive film pattern disposed on the fluorescent material plate in the laser beam irradiation region; a second transparent conductive film pattern disposed on the fluorescent material plate outside the laser beam irradiation region and connected to the first transparent conductive film pattern to constitute a continuous series connection wiring; and an electric circuit electrically connected to the second transparent conductive film pattern, detect a change in a resistance value of the series connection wiring, and function to stop the driving of the laser light source when the resistance value falls outside a predetermined range.

公开(公告)号：US10704755B2

公开(公告)日：2020-07-07

申请号：US16323260

申请日：2017-07-14

申请人： OSRAM GmbH

发明人： Stefan Hadrath

IPC分类号： F21S41/176 ,  F21S41/20 ,  F21S45/70 ,  F21S41/14 ,  F21S41/16 ,  F21V9/20 ,  F21V9/30 ,  F21V23/04 ,  F21S41/255 ,  F21Y115/30

摘要： A lighting apparatus may include a light generating device for generating a primary light beam, a phosphor body that can be irradiated by means of the primary light beam and serves for partly converting primary light of the primary light beam into secondary light, and a spectral filter disposed downstream of the phosphor body. The spectral filter may be more highly transmissive to the secondary light than to the primary light where the spectral filter is arranged along a beam axis of the primary light beam incident on the phosphor body. The lighting apparatus may be used in LARP arrangement for vehicle lighting, general lighting, exterior lighting, stage lighting, effect lighting, etc.

公开(公告)号：US10680414B2

公开(公告)日：2020-06-09

申请号：US16181993

申请日：2018-11-06

申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

发明人： Toru Takayama ,  Tougo Nakatani ,  Takashi Kano ,  Katsuya Samonji

IPC分类号： H01S5/20 ,  H01S5/343 ,  H01S5/30 ,  H01L33/14 ,  H01L33/32 ,  H01S5/22 ,  F21Y115/30 ,  F21S41/176 ,  F21S41/16

摘要： A nitride-based light-emitting device includes, on a GaN substrate: a first-conductivity-side first semiconductor layer; an active layer; and a second-conductivity-side first semiconductor layer, in the stated order, and further includes an electron barrier layer of a second conductivity type between the active layer and the second-conductivity-side first semiconductor layer, the electron barrier layer including a nitride-based semiconductor containing at least Al. The electron barrier layer has a first region in which an Al composition changes. The Al composition in the first region monotonically increases in a direction from the active layer to the second-conductivity-side first semiconductor layer. An impurity concentration in the second-conductivity-side first semiconductor layer is lower in a region nearer the electron barrier layer than in a region farther from the electron barrier layer.