Headlamp optical element, headlamp module, vehicle lamp and vehicle
US11745639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Apr 30, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a headlamp optical element comprising a light collecting part, a light emitting part and a reflecting part connected in sequence. The reflecting part comprises a low beam or high beam cutoff line structure. The end of the light collecting part comprises an outer contour surface and a concave cavity including a cambered front light incident surface and a lateral light incident surface that is curved with a smaller circumference closer to the reflecting part. The outer contour surface is curved with a larger circumference closer to the reflecting part. A lower portion of the light collecting part is provided with a region III light-shape forming structure, wherein part of light converged can be emitted from region III and under the reflecting part in sequence forming a light-shape of a low beam region III. The headlamp optical element is simple, compact, and lighter in weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.