Exterior light unit for an aircraft or other vehicle and aircraft comprising the same
US9731841B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Aug 6, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An exterior light unit, has an LED in operation emitting light; a reflector, which reflects a first portion of the light emitted by the LED; a first lens, through which the first portion of the light is refracted after being reflected by the reflector; and a second lens, which is an aspherical collimating lens and which is arranged in such a way with respect to the LED that a second portion of the light emitted by the LED has an unobstructed path to the second lens and is collimated by the second lens in a main light output plane. The second portion of the light, when on its way from the LED to the second lens, crosses way with the first portion of the light, when on its way from the reflector to the first lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.