Patent · US Active

Illuminating device

US8201983B2 · kind B2 · utility

3Cited by

4References

20Claims

0Family size

Assignee

YOUNG LIGHTING TECHNOLOGY INC. · TW

Inventors

Wei Wang · Palo Alto, US
Udo Custodis · Munich, DE
Wen-Chiao Chang · Baoshan, TW

Key dates

Filing date	Jun 1, 2010
Grant date	Jun 19, 2012
Priority date	—
Expiry date	Aug 3, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/0038
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An illuminating device includes a tubular light guide, a plurality of light-emitting devices, and a base. The tubular light guide has a light input edge and an inner space. The light-emitting devices are distributed at the light input edge to provide lights into the tubular light guide. The base supports the light-emitting devices and the tubular light guide. The base also has an electronic circuit to provide power to the light-emitting devices. The base has at least one air circulation hole for connecting an outer space with the inner space.

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