LIGHT SOURCE DEVICE

WIPO Patent Application WO/2021/121111

A1

A light source device (100), comprising a light source (10), a wavelength conversion device (20), a light collection element (30), a support (50), and a scattering element (40). The light source (10) emits exciting light; the wavelength conversion device (20) receives the exciting light and converts at least part of the exciting light into excited light; the light collection element (30) is disposed between the light source and the wavelength conversion device (20), the light collection element (30) is provided with a light transmitting portion (33), the exciting light enters the wavelength conversion device (20) through the light transmitting portion (33), and the light collection element (30) is used for collecting the light exiting from the wavelength conversion device (20) and guiding to light to exit; the scattering element (40) is fixed to the light collection element (30) by means of the support (50) and corresponds to the light transmitting portion (33), and/or the scattering element (40) is installed, by means of the support (50), on the optical path of the light exiting from the light collection element (30) to scatter the exciting light entering the wavelength conversion device (20) and/or scatter the light exiting from the light collection element (30). Thus, the uniformity of an illumination beam emitted by the light source device (100) is improved.

CHEN HUI (CN)
ZHANG QUAN (CN)

PCT/CN2020/135098

June 24, 2021

December 10, 2020

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YLX INC (CN)

F21V17/10; F21V5/00; F21V9/30

CN211738976U	2020-10-23
CN107940257A	2018-04-20
CN107940257A	2018-04-20
CN102636946A	2012-08-15
CN104728775A	2015-06-24
CN105190159A	2015-12-23
US20130100644A1	2013-04-25
JP6185226B2	2017-08-23

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