Light generator for introducing light into a bundle of optical fibers
US6402347B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Dec 15, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The light generator comprises a housing (1) with a light source in the form of a plurality of LEDs (3, 3′, . . . ), each having a luminous flux of at least 5 lm during operation. The housing (1) also comprises a collimating lens (6) and a Fresnel lens (8) for focusing the beam generated by the LEDs (3, 3′, . . . ). The light engine is further provided with drive means in a box (10) for driving the LEDs (3, 3′, . . . ). Preferably, the collimator lens (6) has a number of sub-lenses (7, 7′, . . . ), the optical axis of each of the sub-lenses coinciding with the optical axis of a respective one of the LEDs (3, 3′, . . .).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.