Vehicle lamp optical assembly with primary and secondary optical units
US11898714B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2102/135
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle lamp optical assembly includes a primary optical unit having a plurality of primary optical units arranged side by side. The primary optical unit has a light entrance portion and a light guide portion. The light guide portion has a light entrance portion mounting surface and a primary light emission surface. The light entrance portion mounting surface has at least one light entrance portion. The light entrance portion is configured to enable incident light to be converged and emitted to the light guide portion, and the light guide portion is configured to guide the incident light to be emitted from the primary light emission surface; and a secondary optical unit. The secondary optical unit has a secondary light emission surface and a secondary light entrance surface corresponding to the primary light emission surface. The secondary light emission surface is a narrow and long smooth curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.