Patent · US Active

High luminance solid state light source

US9255672B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Ulrich Weichmann · Aachen, DE
Jens Pollmann-Retsch · Aachen, DE

Key dates

Filing date	Apr 30, 2013
Grant date	Feb 9, 2016
Priority date	—
Expiry date	Apr 30, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A solid-state light source includes laser diodes that emit a laser beam with a first wavelength, a rotatable support that is arranged in a beam path of the laser beam and a reflector that is arranged between the laser diodes and the rotatable support. The rotatable support is formed of a ring or of an optically transparent disc. Further, the rotatable support is mounted to be rotatable around a rotation axis such that the laser beam impinges on a ring-shaped area of the rotatable support during rotation. Segments of the ring-shaped area include wavelength converting material that emits radiation of a second wavelength upon impingement of the laser beam. The rotatable support is mounted in a bearing that is arranged distant from the rotation axis to allow unhindered passage of the radiation directed by the reflector to the emission direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.