Lighting device and vehicle lamp fixture
US11668444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2021 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Jan 19, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V14/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a laser light source configured to emit a laser beam, a wavelength conversion member including a laser beam irradiation region to which the laser beam is radiated and configured to emit a wavelength converted light excited by radiation of the laser beam, a laser beam scanning mechanism configured to form a light distribution pattern according to a scanning range of the laser beam by scanning the laser beam radiated to the laser beam irradiation region, and a projection lens configured to project illumination light that forms a light distribution pattern forward, and an incidence angle of the laser beam, which is scanned by the laser beam scanning mechanism, with respect to the wavelength conversion member is set to an angle where the laser beam does not directly enter the projection lens when the wavelength conversion member is damaged, chipped or fallen off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.