Title:
WAVELENGTH CONVERSION DEVICE AND PREPARATION METHOD THEREFOR, LIGHT SOURCE DEVICE, AND PROJECTION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2019/136834
Kind Code:
A1
Abstract:
The present invention provides a wavelength conversion device, comprising a meniscus lens unit and a wavelength conversion unit. The wavelength conversion unit is accommodated in a groove of the meniscus lens unit; one surface of the wavelength conversion unit is attached to the groove; the thickness of the wavelength conversion unit is reduced from a center area to the edge of the periphery. The present invention further provides a light source device, projection equipment, and a preparation method for the wavelength conversion device. The present invention can effectively improve the situation of uneven light color of emergent light spots.
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Inventors:
XU MENGMENG (CN)
YU XIN (CN)
HU FEI (CN)
LI YI (CN)
YU XIN (CN)
HU FEI (CN)
LI YI (CN)
Application Number:
PCT/CN2018/080882
Publication Date:
July 18, 2019
Filing Date:
March 28, 2018
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
F21V9/40; G03B21/20
Foreign References:
| CN105264437A | 2016-01-20 | |||
| CN102437274A | 2012-05-02 | |||
| CN104170102A | 2014-11-26 | |||
| KR20120114520A | 2012-10-17 |
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