Title:
VEHICULAR HEAD LAMP
Document Type and Number:
WIPO Patent Application WO/2020/255826
Kind Code:
A1
Abstract:
According to the present invention, a projection lens 12 formed of acryl and a lens holder 11 formed of polycarbonate are joined by laser welding, the projection lens has a joint surface 16a and is formed transparent, the lens holder has a weld surface 13a joined to the joint surface and is formed transparent, and the projection lens and the lens holder are joined by irradiating the weld surface with a laser beam having a wavelength of 1,550-1,640 nm and passing through the projection lens.
Inventors:
NISHIZAKI MASAHIKO (JP)
Application Number:
PCT/JP2020/022865
Publication Date:
December 24, 2020
Filing Date:
June 10, 2020
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
F21S41/148; F21S41/25; F21S41/29; F21W102/00; F21Y115/10
Domestic Patent References:
| WO2016084545A1 | 2016-06-02 |
Foreign References:
| JP2010161048A | 2010-07-22 | |||
| JP2005339988A | 2005-12-08 | |||
| JP2012178301A | 2012-09-13 |
Attorney, Agent or Firm:
IWATA, Masanobu et al. (JP)
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