Patent · US Active

Light source and illuminating device

US9791132B2 · kind B2 · utility

1Cited by

7References

20Claims

0Family size

Assignee

APPOTRONICS CORPORATION LIMITED · CN

Inventors

Yi Li · Nanhu, CN
Quan Zhang · Nanhu, CN
Yi Yang · 流花街道, CN

Key dates

Filing date	Aug 29, 2012
Grant date	Oct 17, 2017
Priority date	—
Expiry date	Oct 7, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/853
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light source comprises a light emitting diode array (101) and a collimator array (102). The light emitting diode array (101) comprises at least two light emitting diode units (101a, 101b) that emit light of different colors; the collimator array (102) is used for collimating light emitted by the light emitting diode units (101a, 101b) and keep the optical extension of the light emitted by the light emitting diode units (101a, 101b) substantially unchanged. The light source further comprises a dodging device (103) used for dodging light emerging from the collimator array (102). An illuminating device comprises the light source. The light emitting diode units (101a, 101b) and the collimator unit (102a) in the light source and the illuminating device minimize the optical extension of the emergent light, thereby maximizing the luminance.

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