Light source unit and fixing method of lens thereof
US10711966B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/47
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light source includes a substrate on which an excitation light source is mounted, a lens including a light transmitting portion that transmits light from the excitation light source and a body attached to the substrate, a first thermal expansion absorber that protrudes from the body and has high heat resistance and elasticity, and a cover fixed to the substrate in a state where the body of the lens is sandwiched between the cover and the substrate via the first thermal expansion absorber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.