Title:
LIGHTING TOOL FOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/2023/282041
Kind Code:
A1
Abstract:
It is desirable that lighting functions such as a daytime running lamp (DRL), a position lamp (PL), and a turn indicator (TI) each take an optimal heat dissipation structure. A first lighting function and a second lighting function for executing the lighting functions such as the daytime running lamp (DRL), the position lamp (PL), and the turn indicator (TI) are executed by LEDs each comprising a light source (1, 11), a protective resin (2, 12), and a light source plate (3, 13). The LEDs for the first lighting function are provided on the upper surface of a heat sink, and the LEDs for the second lighting function are provided on a substrate independent of the heat sink. This substrate is mounted to a position, on the upper surface of the heat sink, for enabling the first lighting function and the second lighting function to be executed.
Inventors:
TSUCHIYA TAKAAKI (JP)
MATSUOKA KENJI (JP)
MATSUOKA KENJI (JP)
Application Number:
PCT/JP2022/024521
Publication Date:
January 12, 2023
Filing Date:
June 20, 2022
Export Citation:
Assignee:
ICHIKOH INDUSTRIES LTD (JP)
International Classes:
F21V23/00; F21S43/14; F21S43/15; F21S43/19; F21S45/47; F21V29/503; F21V29/76; F21W103/10; F21W103/20; F21W103/55; F21Y113/10; F21Y115/10
Foreign References:
| US20170198879A1 | 2017-07-13 | |||
| JP2019169358A | 2019-10-03 | |||
| JP2021093332A | 2021-06-17 | |||
| JP2017098212A | 2017-06-01 | |||
| JP2016134313A | 2016-07-25 | |||
| JP2011253774A | 2011-12-15 |
Attorney, Agent or Firm:
SAKAMOTO & PARTNERS (JP)
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