Patent · US Active

Lighting device with smooth outer appearance

US10663158B2 · kind B2 · utility

0Cited by

10References

13Claims

0Family size

Assignee

SIGNIFY HOLDING B.V. · NL

Inventors

Theodoor Cornelis Treurniet · Best, NL
Yan Xiong · Eindhoven, NL
Simon Eme Kadijk · Veldhoven, NL
Howard Jiang · Shanghai, CN
Robert Zou · Shanghai, CN
Guangliang Guo · Shanghai, CN

Key dates

Filing date	Jan 29, 2019
Grant date	May 26, 2020
Priority date	—
Expiry date	Jan 29, 2039

Classification

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

Abstract

A lighting device or a lamp bulb (100, 200) with a smooth appearance comprises at least one light source (101); a heat sink component (104, 204), having a bottom (1043) and a side wall (1044) extending from the bottom (1044), wherein the bottom (1043) comprises a protrusion (1041) and wherein the at least one light source (101) thermally contacts the protrusion (1041) of the heat sink component (104, 204); and a cover provided on the sidewall (1044) opposite to the bottom (1043), thereby defining an air chamber (1051, 2051) between the cover, the side wall (1044), the bottom (1043) and the protrusion (1041).

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