Patent · US Active

Integrated planar reflective LARP package and method

US10422499B2 · kind B2 · utility

1Cited by

0References

18Claims

0Family size

Assignees

OSRAM GmbH · DE
OSRAM SYLVANIA Inc. · US

Inventors

Alan Lenef · Belmont, US
Joerg Sorg · Regensburg, DE
Jan Oliver Drumm · Homburg, DE
Sergey Kudaev · Znamenskoye, RU

Key dates

Filing date	Dec 4, 2017
Grant date	Sep 24, 2019
Priority date	—
Expiry date	Dec 4, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/34333
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A reflective laser activated remote phosphor (LARP) package comprising: a phosphor platelet oriented in a first plane defined by an x-y plane; a laser diode (LD) positioned to be offset along the x-axis from the phosphor platelet and above the first plane along a z-axis perpendicular to the x-y plane, the LD comprising: an output facet configured for emitting a laser beam (LB), the LB comprising: a slow axis oriented in a first direction along which the LB diverges at a first angle; and a fast axis oriented in a second direction along which the LB diverges at a second angle greater than the first angle; wherein the LD is oriented such that: the LB is bisected by the phosphor platelet such that the slow axis of the LB lies in an x-z plane and the fast axis of the LB is perpendicular to an x-z plane.

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