Illumination device
US10564381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination device including: a light source including a light emitting element that emits light; a first optical element that transmits the light; a second optical element that transmits the light transmitted by the first optical element; a holder that holds the second optical element; and a spring member including at least one spring portion that generates spring force by being deflected, the spring member pressing the second optical element against the holder with the spring force to hold the second optical element against the holder, wherein the first optical element and the second optical element deflect a center portion in a long edge direction of the at least one spring portion with respect to ends in the long edge direction of the at least one spring portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.