公开(公告)号：US10907772B2

公开(公告)日：2021-02-02

申请号：US16569672

申请日：2019-09-13

申请人： Graphene Lighting China Limited

发明人： Wenbo Ma ,  Qiurong Liao ,  Yu Li ,  Kuo-Hsin Chang ,  Chung-Ping Lai

IPC分类号： F21K9/232 ,  H01L25/075 ,  H01L33/62 ,  F21K9/238 ,  H01L33/50 ,  H05B45/46 ,  H05B45/10

摘要： An LED lamp contains: a base, a casing, a support, multiple LED emitters, a cap, and a driver. The casing includes an accommodation chamber and an opening. The base includes at least one first conductive element. The support includes at least one second conductive element. Each of the at least one LED emitter includes: a first LED chip string having multiple first LED chips connected in series, a second LED chip string having multiple second LED chips connected in series, a substrate, a high-color-temperature phosphor layer, and a low-color-temperature phosphor layer. The driver is electrically connected with the at least one first conductive element and the at least one second conductive element. A total resistance value of the first LED chip string is different from a total resistance value of the second LED chip string.

公开(公告)号：US20200378562A1

公开(公告)日：2020-12-03

申请号：US16569672

申请日：2019-09-13

申请人： Graphene Lighting China Limited

发明人： Wenbo MA ,  Qiurong LIAO ,  Yu LI ,  Kuo-Hsin CHANG ,  Chung-Ping LAI

IPC分类号： F21K9/232 ,  H01L25/075 ,  H01L33/50 ,  H01L33/62 ,  F21K9/238

摘要： An LED lamp contains: a base, a casing, a support, multiple LED emitters, a cap, and a driver. The casing includes an accommodation chamber and an opening. The base includes at least one first conductive element. The support includes at least one second conductive element. Each of the at least one LED emitter includes: a first LED chip string having multiple first LED chips connected in series, a second LED chip string having multiple second LED chips connected in series, a substrate, a high-color-temperature phosphor layer, and a low-color-temperature phosphor layer. The driver is electrically connected with the at least one first conductive element and the at least one second conductive element. A total resistance value of the first LED chip string is different from a total resistance value of the second LED chip string.