Patent · US Active

Lighting device with semiconductor light source and spaced-apart phosphor region

US9702511B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Henrike Streppel · Regensburg, DE
Moritz Engl · Nanhu, CN
Dirk Berben · Herdecke, DE
Joerg Frischeisen · Schwabmünchen, DE
Michael Schoewel · Regensburg, DE

Key dates

Filing date	Oct 10, 2012
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Aug 21, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting may include at least one semiconductor light source which emits primary light, at least one phosphor region spaced apart from the at least one semiconductor light source and serving for at least partly converting the primary light into secondary light, and at least one filter disposed downstream of the at least one phosphor region, wherein the at least one filter is partly reflective at least to the primary light.

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