Patent · US Active

Illumination apparatus

US10222009B2 · kind B2 · utility

3Cited by

3References

15Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Oliver Woisetschlaeger · Sontheim, DE
Frank Buchmann · Jena, DE

Key dates

Filing date	Aug 2, 2017
Grant date	Mar 5, 2019
Priority date	—
Expiry date	Aug 2, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4025
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An illumination apparatus includes a semiconductor laser device to generate a plurality of laser beams, a light wavelength conversion element configured to convert at least a portion of the light of the laser beams into light having a different wavelength, and an optical unit configured to direct the laser beams onto a surface of the light wavelength conversion element. The optical unit includes a mirror element able to be panned about an axis and is configured to guide the laser beams over at least one surface section of the surface of the at least one light wavelength conversion element. The optical unit includes a structure configured to adjust a divergence or expansion of the laser beams along at least one of a slow axis or a fast axis of the laser beams on the surface section of the surface of the at least one light wavelength conversion element.

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