Vehicle lamp lens
US10260693B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Dec 8, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2103/55
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle lamp lens includes a base wall and a light output wall. The base wall has a light input surface, and a base surface disposed in front of the light input surface, and having a plurality of parabolic base sections. The light output wall extends forwardly from a front end of the base wall, and has an inner surface, an outer surface, and a light output surface connected between front ends of the inner and outer surfaces. The outer surface is formed with a plurality of microstructures disposed proximate to the base wall. Each of the micro structures has a parabolic first surface portion having a first virtual focus. The first virtual focuses of the first surface portions of the microstructures are located at the same point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.