Small-sized vehicle-mounted projector light system
US11708021B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2022 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2103/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A small-sized vehicle-mounted projector light system including an illuminating module having a light source, a collimating lens and a film arranged in sequence, and an imaging module; the imaging module includes a curved reflector being a concave mirror with positive focal power, and a first imaging lens. The main optical axis of the illuminating module passes through the reflective surface of the curved reflector, on one side of which the first imaging lens is positioned. The invention ensures an appropriate size of an one-way dimension, no consequence of the limited space within automobile structure during installation and design, and conveniency for arrangement; the curved reflector has positive focal power and can perfect focusing, not only ensuring good projection effect, but also decreasing the number of lenses with positive focal power in the system, and effectively reduce the volume and weight of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.