Patent · US Active

Lighting apparatus

US12429175B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

LEEDARSON LIGHTING CO., LTD. · CN

Inventors

Huiwu Chen · Fujian, CN
Xiaobo Chen · Nanhu, CN
Hao Chen · Beijing, CN

Key dates

Filing date	May 22, 2024
Grant date	Sep 30, 2025
Priority date	—
Expiry date	May 22, 2044

Classification

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

Abstract

A lighting apparatus includes a base plate, multiple first type LED chips, multiple second type LED chips, a first fluorescent layer and a second fluorescent layer. The first fluorescent layer only covers the first type LED chips. The second fluorescent layer covers both the first type LED chips and the second type LED chips. The first type LED chips integrated with the first fluorescent layer emit a first light. The second type LED chips integrated with the first fluorescent layer and the second fluorescent layer emit a second light. The first light and the second light have more than 30% overlapping.

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