Title:
発光制御を有するレーザベースの光源
Document Type and Number:
Japanese Patent JP6800224
Kind Code:
B2
Abstract:
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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Inventors:
Zozgornik, Stephen
Application Number:
JP2018521896A
Publication Date:
December 16, 2020
Filing Date:
October 24, 2016
Export Citation:
Assignee:
Lumileds Holding Buffet
International Classes:
H01S5/022; F21S41/16; F21S41/176; F21S41/20; F21S41/65; F21V23/00
Domestic Patent References:
| JP2014007337A | ||||
| JP2006210887A | ||||
| JP2015041475A | ||||
| JP2014135159A |
Foreign References:
| WO2012053245A1 | ||||
| US20150308636 |
Other References:
ULRICH, Lawrence,"Whiter brights with lasers",IEEE Spectrum,IEEE,2013年11月 7日,vol. 50, no. 11,pp 36-56,DOI: 10.1109/MSPEC.2013.6655838,URL,https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6655838
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki