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公开(公告)号：US10219345B2
公开(公告)日：2019-02-26
申请号：US15348940
申请日：2016-11-10
Applicant: LedEngin, Inc.
Inventor： Xiantao Yan , Kachun Lee , Shifan Cheng , Julio Cesar Alvarado
Abstract: A light emitting device can include a substrate with LED chips disposed on a surface of the substrate. The LED chips can include chips of at least four different colors. Electrical paths disposed in part on the substrate and in part within the substrate can connect the LED chips into at least three independently addressable groups, and the number of independently addressable groups can be less than the number of colors of LED chips, so that at least one of the groups includes LED chips of two or more different colors.
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公开(公告)号：US20160254416A1
公开(公告)日：2016-09-01
申请号：US14634348
申请日：2015-02-27
Applicant: LedEngin, Inc.
Inventor： Shifan Cheng
CPC classification number: H01L33/502 , H01L25/0753 , H01L27/15 , H01L27/156 , H01L33/26 , H05B33/086
Abstract: A color-tunable LED emitter with high CRI can be made by mounting multiple LED chips onto a ceramic substrate that has been patterned with metal contacts and paths so as to connect the LED chips into multiple independently addressable LED groups. Each LED group can produce light of a different color, allowing the color of the emitter to be tuned by adjusting the relative amount of operating current supplied to each LED group. At least some of the LED groups include LEDs coated with a broad spectrum phosphor that can reduce the sharpness of spectral peaks, thereby improving CRI and particular components of CRI, such as R9.
Abstract translation: 可以通过将多个LED芯片安装在已经用金属触点和路径图案化的陶瓷基板上，以将LED芯片连接到多个可独立寻址的LED组中，从而制成具有高CRI的可调色LED发光器。 每个LED组可以产生不同颜色的光，通过调节提供给每个LED组的工作电流的相对量来调节发射器的颜色。 至少一些LED组包括涂覆有广谱磷光体的LED，其可以降低光谱峰值的清晰度，从而改善CRI和诸如R9的CRI的特定组分。
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公开(公告)号：US09530943B2
公开(公告)日：2016-12-27
申请号：US14634348
申请日：2015-02-27
Applicant: LedEngin, Inc.
Inventor： Shifan Cheng
CPC classification number: H01L33/502 , H01L25/0753 , H01L27/15 , H01L27/156 , H01L33/26 , H05B33/086
Abstract: A color-tunable LED emitter with high CRI can be made by mounting multiple LED chips onto a ceramic substrate that has been patterned with metal contacts and paths so as to connect the LED chips into multiple independently addressable LED groups. Each LED group can produce light of a different color, allowing the color of the emitter to be tuned by adjusting the relative amount of operating current supplied to each LED group. At least some of the LED groups include LEDs coated with a broad spectrum phosphor that can reduce the sharpness of spectral peaks, thereby improving CRI and particular components of CRI, such as R9.
Abstract translation: 可以通过将多个LED芯片安装在已经用金属触点和路径图案化的陶瓷基板上，以将LED芯片连接到多个可独立寻址的LED组中，从而制成具有高CRI的可调色LED发光器。 每个LED组可以产生不同颜色的光，通过调节提供给每个LED组的工作电流的相对量来调节发射器的颜色。 至少一些LED组包括涂覆有广谱磷光体的LED，其可以降低光谱峰值的清晰度，从而改善CRI和诸如R9的CRI的特定组分。
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公开(公告)号：US20180132329A1
公开(公告)日：2018-05-10
申请号：US15348940
申请日：2016-11-10
Applicant: LedEngin, Inc.
Inventor： Xiantao Yan , Kachun Lee , Shifan Cheng , Julio Cesar Alvarado
CPC classification number: H05B33/0857 , H01L25/0753 , H01L33/483 , H01L33/54 , H01L33/56 , H01L33/58 , H01L33/62 , H05B33/0827 , H05B33/0845 , H05B33/086
Abstract: A light emitting device can include a substrate with LED chips disposed on a surface of the substrate. The LED chips can include chips of at least four different colors. Electrical paths disposed in part on the substrate and in part within the substrate can connect the LED chips into at least three independently addressable groups, and the number of independently addressable groups can be less than the number of colors of LED chips, so that at least one of the groups includes LED chips of two or more different colors.
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