Patent · US Active

Light bulb apparatus

US11473735B2 · kind B2 · utility

1Cited by

2References

8Claims

0Family size

Assignee

XIAMEN LEEDARSON LIGHTING CO., LTD · CN

Inventors

Xiaobo Chen · Nanhu, CN
Shenggan Wang · Fujian, CN
Mingyan Fu · Xiamen, CN
Guanfeng Liu · Fujian, CN
Liangliang Cao · Xiamen, CN
Mingli Wei · Fujian, CN
Ran Gao · Erlangen, DE
Zhipeng Zhao · Sunnyvale, US

Key dates

Filing date	Jul 17, 2021
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Jul 17, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21V31/005
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light bulb includes a bulb shell, a light source, a driver, a head housing and a bottom switch. The light source is enclosed by the bulb shell for emitting a light through the bulb shell. The driver converts an external power to a driving current supplied to the light source. The head housing has an Edison cap. The head housing is coupled to the bulb shell. The driver is enclosed by the head housing. The Edison cap is plugged to an Edison socket for receiving the external power source. The bottom switch is disposed on the bottom of the Edison cap for changing a setting of the driver.

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