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公开(公告)号：US10788164B1
公开(公告)日：2020-09-29
申请号：US16424475
申请日：2019-05-28
申请人： Wenbo Ma , Qiurong Liao , Yu Li , Kuo-Hsin Chang , Chung-Ping Lai
发明人： Wenbo Ma , Qiurong Liao , Yu Li , Kuo-Hsin Chang , Chung-Ping Lai
IPC分类号： F21K9/232 , F21K9/235 , H01L33/50 , H01L25/075 , F21K9/64
摘要： A light-emitting diode (LED) emitter and a LED lamp having the same are revealed. The LED emitter includes a first LED chip string, a second LED chip string, a substrate, two electrodes, a high-color-temperature phosphor layer and a low-color-temperature phosphor layer. The substrate where the first LED chip string and the second LED chip string are arranged is electrically connected to the two electrodes. The high-color-temperature phosphor layer and low-color-temperature phosphor layer cover the first LED chip string and the second LED chip string respectively. The total resistance value of the first LED chip string is different from the total resistance value of the second LED chip string.
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公开(公告)号：US10907772B2
公开(公告)日：2021-02-02
申请号：US16569672
申请日：2019-09-13
发明人： Wenbo Ma , Qiurong Liao , Yu Li , Kuo-Hsin Chang , Chung-Ping Lai
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.
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