Title:
LIGHTING DEVICE, HEAD-UP DISPLAY, AND METHOD FOR MANUFACTURING LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/145380
Kind Code:
A1
Abstract:
Provided are a lighting device, a head-up display, and a method for manufacturing lighting device, capable of appropriately maintaining a moisture-proof sealed state of an internal space. A back-light unit 1 comprises a laser light source 11 for outputting laser light, a Peltier module 17 for cooling the laser light source 11, and an outer case 18 for internally sealing the laser light source 11 and the Peltier module 17 against moisture, wherein: the outer case 18 comprises a tubular accommodating portion 181 having an emission opening 1811 for emitting the laser light formed therein, a lower lid portion 183 which is in thermal contact with the Peltier module 17 and which blocks one opening of the accommodating portion 181, and an upper lid portion 182 which blocks another opening of the accommodating portion 181; and an internal space S in a negative pressure state is formed in the accommodating portion 181.
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Inventors:
TANIMOTO KATSUHIKO
KOJIMA SHIGERU
SASAKI TOMOKO
KOJIMA SHIGERU
SASAKI TOMOKO
Application Number:
PCT/JP2022/048481
Publication Date:
August 03, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
F21V29/54; B60K35/00; F21S2/00; F21V29/503; F21V31/00; G02B27/01
Foreign References:
| JP2017112202A | 2017-06-22 | |||
| JP2014194504A | 2014-10-09 | |||
| JP2021064618A | 2021-04-22 | |||
| JP2017116588A | 2017-06-29 | |||
| JP2017130344A | 2017-07-27 |
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