Vehicle lamp device and projection lens for vehicle lamp
US11428378B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle lamp device including a matrix image light source, a projection lens, and a vehicle lampshade is provided. The projection lens has an optical axis and is disposed in a downstream of an optical path of the matrix image light source. The vehicle lampshade is disposed in a downstream of an optical path of the projection lens. The projection lens includes two to three optical lenses, and a projection aspect ratio of the projection lens is between 2.5:1 and 6:1. A distance between optical centers of outermost lens surfaces at both ends of the projection lens is between 54 millimeters and 76 millimeters. In addition, a projection lens for a vehicle lamp is also proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.