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公开(公告)号：US10955110B2
公开(公告)日：2021-03-23
申请号：US16709110
申请日：2019-12-10
IPC分类号： F21V5/04 , G02B27/30 , F21V5/00 , F21S41/25 , F21S41/143 , F21S41/151 , F21Y115/10 , F21V7/00
摘要： The disclosure describes a precollimator for a lighting device, including: a) a number of first collimator units each having an entry face and an exit plane, wherein for each first collimator unit the exit plane is wider than the entry face in a first direction and the entry face and the exit plane have the same width in a second direction that is perpendicular to the first direction and b) a second collimator unit having an entry plane and an exit face, wherein the exit face is wider than the entry plane in the second direction, and wherein the exit plane of each first collimator unit is optically connected to the entry plane of the second collimator unit, wherein the precollimator is joined together from at least two components. The disclosure further describes such lighting device and a method to manufacture such precollimator.
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公开(公告)号：US10520152B2
公开(公告)日：2019-12-31
申请号：US15773121
申请日：2016-10-24
发明人： Steffen Zozgornik
IPC分类号： G02B27/20 , F21S41/135 , H01S3/00 , H01S5/00 , H01S5/40 , H01S3/23 , F21S41/16 , F21S41/125 , F21S41/683 , F21V9/30 , F21V7/26 , F21V9/40 , F21V9/14 , F21V14/08
摘要： The invention describes a laser-based light source (100) which is adapted to use the angular dependence of the reflection of polarized laser light (10) at a surface of a conversion material to control especially the color point of light emitted by means of the laser-based light source (100). The reflected laser light is within a first wavelength range and the converted light is in a second wavelength range different from the first wavelength range such that the color point of the light emitted by means of the laser-based light source (100) in a defined solid angle depends on the ratio between reflected and converted light. The invention further describes a corresponding method of light emission control, a vehicle headlight (200) comprising such a laser-based light source (100) and a lighting system comprising such vehicle headlights (200).
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公开(公告)号：US10935206B2
公开(公告)日：2021-03-02
申请号：US16523824
申请日：2019-07-26
发明人： Steffen Zozgornik
IPC分类号： F21S41/675 , F21S41/24 , F21S41/30 , F21S41/16 , F21S41/125 , F21S41/40 , F21Y115/30
摘要： An illumination device comprises one or several lasers emitting light of a first wavelength or wavelength range, a wavelength converting member converting at least part of the light of the first wavelength or wavelength range into light of a second wavelength or wavelength range, a scanning unit adapted to scan one or several laser beams of said one or several lasers across said wavelength converting member in order to generate an illumination pattern formed at least of the light of the second wavelength or wavelength range, and, optionally, an imaging optics imaging said illumination pattern to the far field. A first light guiding structure is arranged on a light emitting side of said wavelength converting member, said first light guiding structure forming a grid of first light guiding channels. The illumination device can be used as an adaptive headlamp of a vehicle and achieves a high contrast between illuminated and dark regions as well as a high efficiency with a small projection optics.
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公开(公告)号：US10767827B2
公开(公告)日：2020-09-08
申请号：US16590195
申请日：2019-10-01
发明人： Steffen Zozgornik
IPC分类号： F21V3/00 , F21V5/00 , F21S41/24 , F21S41/143 , F21S41/151 , F21S41/20 , F21V5/04 , F21Y115/10
摘要： The invention describes an LED lighting device comprising an imaging optic and an illumination unit, wherein the illumination unit comprises a row of a plurality of LEDs and a pre-collimator collimating the light emitted by the LEDs, and the imaging optic is arranged such that a focal plane of the imaging optic coincides with the LED row of the illumination unit. The invention further describes a respective automotive headlight, and a method for the assembly of an LED lighting device.
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公开(公告)号：US10551019B2
公开(公告)日：2020-02-04
申请号：US15753896
申请日：2016-08-17
发明人： Steffen Zozgornik , Roman Hohn
摘要： The present inventions relates to an illumination device, in particular for a vehicle headlight. The device comprises at least one light source, a wavelength converting member converting at least part of the light of the light source to light of a different wavelength, a first and a second light guiding element between the light source and the wavelength converting member, and a reflective member being attached to the wavelength converting member. The second light guiding element is designed to guide the light emitted by the light source and having passed through the first light guiding element to the wavelength converting member and to guide the converted light which has been reflected at the reflective member to the first light guiding element. The first light guiding element comprises at least one first guiding structure guiding the light emitted by the light source to the second light guiding element. The first light guiding element also comprises at least one second guiding structure guiding the converted light which has been passed through the second guiding structure to an outcoupling surface of the first light guiding element. The proposed illumination device allows the use of light sources with high luminance and can be realized in a compact manner.
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公开(公告)号：US10260695B2
公开(公告)日：2019-04-16
申请号：US16064967
申请日：2016-12-12
摘要： The invention describes a light conversion module (100) comprising a transparent substrate (120), a conversion layer (110) attached to a light exit side of the substrate (120), wherein the conversion layer (110) is arranged to convert a part of laser light (10) of a first wavelength range entering the substrate (120) via a light entrance side to converted laser light (20) of a second wavelength range different from the first wavelength range, and to transmit another part of the laser light (10), such that a mixture of the transmitted laser light (15) and of a part of the converted laser light (20) leaves the conversion layer (110) in forward direction opposite to the side where the conversion layer (110) is attached to the light exit side of the substrate (120), and wherein the substrate (120) is arranged such that converted laser light (20) entering the substrate via the light exit side is inhibited to re-enter the conversion layer (110) via the light exit side by arranging a thickness of the substrate (120) perpendicular to the light exit side such that the converted laser light (20) entering the substrate which is totally reflected at the light entrance side of the substrate (120) does not hit the conversion layer (110) after one total reflection at the light entrance side. The invention further describes a laser-based light source (200), especially an automotive headlight, comprising such a light conversion module (100). The invention further relates to a method of manufacturing such a light conversion module (100).
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公开(公告)号：US20180252379A1
公开(公告)日：2018-09-06
申请号：US15753896
申请日：2016-08-17
发明人： Steffen Zozgornik , Roman Hohn
IPC分类号： F21S41/16 , F21S41/125 , F21S41/24 , F21S41/32 , F21V8/00
摘要： The present inventions relates to an illumination device, in particular for a vehicle headlight. The device comprises at least one light source, a wavelength converting member converting at least part of the light of the light source to light of a different wavelength, a first and a second light guiding element between the light source and the wavelength converting member, and a reflective member being attached to the wavelength converting member. The second light guiding element is designed to guide the light emitted by the light source and having passed through the first light guiding element to the wavelength converting member and to guide the converted light which has been reflected at the reflective member to the first light guiding element. The first light guiding element comprises at least one first guiding structure guiding the light emitted by the light source to the second light guiding element. The first light guiding element also comprises at least one second guiding structure guiding the converted light which has been passed through the second guiding structure to an outcoupling surface of the first light guiding element. The proposed illumination device allows the use of light sources with high luminance and can be realized in a compact manner.
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