Vehicle lamp
US12049993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2021 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Mar 30, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2103/35
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Photoluminescence generated by excitation light emitted from an excitation light source can be effectively utilized. A vehicle lamp according to the present invention includes a lamp housing and a lamp lens forming a lamp chamber, an excitation light source disposed in the lamp chamber and emitting excitation light, and a luminescence unit fixed to the lamp lens on a side thereof closer to the lamp chamber and generating photoluminescence by the excitation light emitted from the excitation light source. The lamp lens is a lens that transmits the photoluminescence generated in the luminescence unit and emits the photoluminescence outside the lamp chamber. As a result, the present invention enables effective use of the photoluminescence generated by the excitation light emitted from the excitation light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.