Patent · US Active

Lighting apparatus

US11910500B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

LEEDARSON LIGHTING CO., LTD. · CN

Inventors

Jiayuan Zhang · Fujian, CN
Changjing Zeng · Fujian, CN
Jingjing Su · Fujian, CN
Xiaoming Yang · San Diego, US
Zongyuan Liu · Fujian, CN
Liangliang Cao · Xiamen, CN

Key dates

Filing date	Jul 11, 2022
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Jul 11, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/46
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.

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