Patent · US Active

Colored and white light generating lighting device

US8523924B2 · kind B2 · utility

5Cited by

4References

13Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Jorg Meyer · Aachen, DE
Peter Lurkens · Aachen, DE
Bernd Ackermann · Aachen, DE
Andreas Tücks · Aachen, DE

Key dates

Filing date	May 22, 2007
Grant date	Sep 3, 2013
Priority date	—
Expiry date	Oct 16, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A lighting device for generating colored and white light. According to the invention the lighting device comprises at least one light source (1, 4) emitting blue or ultraviolet light and a color conversion unit (2, 5) for converting said blue or ultraviolet light into visible light comprising at least two sections (2a, 2b, 2c, 6a, 6b, 6c, 6d), at least one section (2c, 6d) of which being a transparent or translucent color converting section, said color conversion unit (2, 5) being arranged for alternately illuminating said at least two sections (2a, 2b, 2c, 6a, 6b, 6c, 6d) with said blue or ultraviolet light, said at least one color converting section containing luminescent material, wherein said luminescent material is a luminescent organic dye in a polymer matrix or a crystalline inorganic luminescent material.

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