Optical unit and vehicle lamp
US10208911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Aug 8, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical unit includes a light source, a rotary reflector that rotates about an axis of rotation and includes a reflective surface that reflects light emitted by the light source, and a projection lens including an incident surface on which reflected light from the rotary reflector is incident. A shade is provided between the projection lens and the rotary reflector. The shade blocks at least a portion of light that has been incident on an emission surface of the projection lens at an angle within a predetermined range, that has been condensed by the projection lens, and that travels toward the reflective surface of the rotary reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.