Focused LED headlamp with iris assembly
US10767840B2 · kind B2 · utility
2Cited by
21References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A headlamp includes a tubular housing; an electrical conductor entering the housing and connected to an electrical network; an LED assembly with a ceramic substrate and an LED having a light-emitting front surface; an iris assembly with a toroidal housing, an iris diaphragm and an actuator for adjusting the width of the aperture. A prime lens placed in front of the iris diaphragm and having an annular light block provided proximate a rear surface of the prime lens; and an optical assembly with at least a light focusing lens placed in front of the iris assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.