Lighting apparatus, automobile, and projection lens
US10161617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Mar 2, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/48
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus includes: a projection lens; a light source behind the projection lens; a reflector that reflects light from the light source toward the projection lens; and a shield that blocks a portion of the light reflected by the reflector to form a cutoff line in a distribution pattern of the light. A textured section demarcated by unit regions is formed on a surface of the projection lens, and when a region in a center of the projection lens is defined as a central region, and regions left and right of the central region are defined as left and right regions, respectively, in a front view, a proportion of the unit regions in the central region is greater than a proportion of the unit regions in each of the left region and the right region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.