公开(公告)号：US11355481B2

公开(公告)日：2022-06-07

申请号：US17050114

申请日：2019-04-26

Applicant: OSRAM GmbH

Inventor： Alberto Alfier ,  Xiaolong Li

IPC: H01L25/075 ,  H01L33/48 ,  H01L33/62 ,  H01L27/15 ,  H01L33/38

Abstract: A multi-COB-LED lighting module includes a submount; and a plurality of clusters of LED-chips that emit light radiation in respective emission bands, wherein each LED-chip cluster includes a plurality of LED-chips arranged on the submount by chip on board technology and emit light radiation in a respective emission band, and at least two LED-chips of at least a first LED-chip cluster each borders with a plurality of LED-chips belonging to one or more clusters of LED-chips different from the first LED-chip cluster and connect one to the other by at least a wire bond that extends above one or more of the adjoining LED-chips.

公开(公告)号：US11266076B2

公开(公告)日：2022-03-08

申请号：US16966010

申请日：2019-01-21

Applicant: OSRAM GmbH

Inventor： Renato Frison ,  Xiaolong Li

IPC: A01G7/04 ,  F21V19/00 ,  F21V23/00 ,  H05B45/20 ,  F21Y105/16 ,  F21Y113/10 ,  F21Y115/10

Abstract: A lighting device may have a planar array of electrically-powered light radiation sources partitioned into a plurality of sets of light radiation sources. The light radiation sources of the same set may emit light radiation of the same color, and different sets of radiation sources may emit light radiation of different colors. Each one of the different sets of light radiation sources may include a respective fraction of the total number of light radiation sources in the array. The light radiation sources have respective planar coordinates relative to a common center of the array, and the different sets of light radiation sources have respective centers located at the common center. The array comprises at least two complementary sub-arrays, opposite to the common center. The different sets of radiation sources are present in the sub-arrays in respective partial fractions of the number of radiation sources included in the sub-array.

公开(公告)号：US20220248512A1

公开(公告)日：2022-08-04

申请号：US17627004

申请日：2020-07-22

Applicant: OSRAM GmbH

Inventor： Alberto Alfier ,  Xiaolong Li

IPC: H05B45/22 ,  H05B45/10 ,  H05B47/18 ,  H05B47/155

Abstract: A control device for lighting apparatus includes a plurality of electrically-powered light radiation sources activatable to emit light radiations of different colors and produce a combined light radiation. The luminous flux intensities of the light radiation sources are adjustable to vary the color and the intensity of the combined light radiation.