Optical unit
US10180222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/686
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical unit includes a first light source, a second light source, a rotary reflector rotating around its rotation axis while reflecting a first light emitted from the first light source, and a projection lens configured to project the first light reflected by the rotary reflector in a light irradiation direction of the optical unit. The second light source is disposed such that a second light emitted from the second light source is incident on the projection lens without being reflected by the rotary reflector. The projection lens is configured to project the second light in the light irradiation direction of the optical unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.