JP5877868B2 - 個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 - Google Patents
個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 Download PDFInfo
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- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series array of LEDs
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- H05B47/175—Controlling the light source by remote control
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
[項1]
光源であって、
電源母線に並列に接続した複数のセグメントLEDであって、該電源母線に接続するセグメントLEDの数は可変であり、該数は、前記光源が所定の光出力を出力するよう選定されていることを特徴とする、複数のセグメントLEDと、
AC電源を受け取り前記電源母線に電源信号を送るコントローラと、
を具備することを特徴とする光源。
[項2]
各セグメントLEDは、該セグメントLEDと同系統の材料で作られた従来のLEDの駆動電圧より3倍大きい駆動電圧を持つことを特徴とする、項1に記載の光源。
[項3]
各セグメントLEDは、前記複数のセグメントLEDから発生する光の強さの平均の10%より低い所定の強さの範囲内の強さの光を発生することを特徴とする、項1に記載の光源。
[項4]
前記電源母線は、該電源母線から前記セグメントLEDの1つを切り離す、切断可能なリンクを有することを特徴とする、項1に記載の光源。
[項5]
前記切断可能なリンクは、レーザー切除により切除可能な導電領域を具備することを特徴とする、項4に記載の光源。
[項6]
前記電源母線は、前記コントローラからの命令に応答して前記セグメントLEDの1つを切り離すスイッチを有することを特徴とする、項1に記載の光源。
[項7]
光源を製造する方法であって、該方法は、
第1の母線と第2の母線を有する基板を用意するステップと、
前記第1の母線と第2の母線に電源信号を発生する、コントローラを備え付けるステップと、
M個のセグメントLEDを前記第1の母線と第2の母線との間に並列に接続するステップであって、各セグメントLEDは、前記電源信号により電源供給されたとき第1の所定の光の強さの範囲内の強さの光を生じさせることを特徴とする、ステップと、
を具備することを特徴とする方法。
[項8]
前記光源からの光出力を測定し、測定した光出力が目標とする光出力と異なる場合は、前記母線に接続したセグメントLEDの数を変更するステップをさらに具備することを特徴とする、項7に記載の方法。
[項9]
前記セグメントLEDの内の1つを前記母線から切断することを特徴とする、項8に記載の方法。
[項10]
前記セグメントLEDの内の1つは、前記母線の内の1つリンクを切除することにより、切断することを特徴とする、項9に記載の方法。
[項11]
実質的に同じ強さの目標出力を有する複数の光源を製造する方法であって、該方法は、
複数のセグメントLEDを各セグメントLEDについて計測した光の強さに応じて複数のグループにグループ分けするステップであって、各グループは、グループ内に分散した平均的な光の強さをもつことを特徴とする、ステップと、
前記目標出力の強さを有する第1の光源と第2の光源とを製造するステップであって、該第1の光源と第2の光源とは、
第1の母線と第2の母線を有する第1の基板と、
前記第1の母線と第2の母線とに電源信号を発生するコントローラと、
前記第1の母線と第2の母線との間に並列に接続した前記グループのうちの1つの複数のセグメントLEDであって、該複数のセグメントLEDは、前記目標出力と実質的に同じ強さを有する光出力を集合的に発生し、
前記第1の光源は、前記第2の光源とは異なるグループのセグメントLEDからなり、前記1の光源中の前記複数のセグメントLEDは、前記第2の光源中の前記複数のセグメントLEDのセグメントLEDの数とは異なることを特徴とする、複数のセグメントLEDと、
を具備する、ことを特徴とするステップと、
を具備する、ことを特徴とする方法。
Claims (4)
- 光源であって、
基板と、
光放出構造であって、
前記基板に蒸着させた第1の導電タイプの半導体材料の第1の層と、
前記第1の層を覆う活性層と、
前記活性層を覆う、前記第1の導電タイプとは反対の導電タイプの半導体材料の第2の層と、
を具備することを特徴とする光放出構造と、
前記光放出構造を、相互に電気的に絶縁された第1のセグメントと第2のセグメントとに分離するバリアと、
前記第1のセグメント中の前記第1の層と前記第2のセグメント中の前記第2の層とを接続する直列接続電極であって、前記第1のセグメント中の前記第1の層に直接接触している直列接続電極と、
前記第1のセグメント中の前記第2の層に電気的に接続された第1の電源接点と、
前記第2のセグメント中の前記第1の層に電気的に接続された第2の電源接点であって、前記第1のセグメントと前記第2のセグメントは、前記第1の電源接点と前記第2の電源接点との間で電位差が生じたとき、光を発生する第2の電源接点と、
を具備し、
前記直列接続電極は前記バリアで隔離された複数の導体からなり、
前記隔離された複数の導体は、導体幅で特徴付けられ、前記隔離された複数の導体は、前記導体幅の5倍以上の間隔で相互に隔てられていることを特徴とする光源。 - 前記第2の層は、Pタイプ半導体を具備し、前記光源は、前記第2の層を覆う透明な電極と、該透明な電極を覆う電流を前記透明な電極の異なる場所に配分する、複数の電流拡散電極とを具備し、該電流拡散電極は、前記直列接続電極に電気的に接続されていることを特徴とする、請求項1に記載の光源。
- 前記電流拡散電極は、前記第2の層の20パーセント以下を覆うことを特徴とする、請求項2に記載の光源。
- 前記隔離された複数の導体は、前記バリアに垂直方向の導体幅で特徴付けられることを特徴とする、請求項1に記載の光源。
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US12/393,910 | 2009-02-26 | ||
US12/393,910 US7982409B2 (en) | 2009-02-26 | 2009-02-26 | Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs |
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JP2011552045A Division JP2012519377A (ja) | 2009-02-26 | 2010-01-26 | 個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 |
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JP2015100961A Division JP2015188094A (ja) | 2009-02-26 | 2015-05-18 | 個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 |
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JP2014160864A JP2014160864A (ja) | 2014-09-04 |
JP5877868B2 true JP5877868B2 (ja) | 2016-03-08 |
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JP2011552045A Pending JP2012519377A (ja) | 2009-02-26 | 2010-01-26 | 個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 |
JP2014096543A Expired - Fee Related JP5877868B2 (ja) | 2009-02-26 | 2014-05-08 | 個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 |
JP2015100961A Pending JP2015188094A (ja) | 2009-02-26 | 2015-05-18 | 個々のセグメントledの光出力における製造工程でのばらつきを補償するセグメントledを用いた光源 |
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US (7) | US7982409B2 (ja) |
EP (1) | EP2401775B1 (ja) |
JP (3) | JP2012519377A (ja) |
KR (2) | KR20110118147A (ja) |
CN (2) | CN105428385B (ja) |
TW (1) | TWI486093B (ja) |
WO (1) | WO2010098922A2 (ja) |
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US7982409B2 (en) | 2009-02-26 | 2011-07-19 | Bridgelux, Inc. | Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs |
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KR20160037248A (ko) | 2016-04-05 |
US20100141175A1 (en) | 2010-06-10 |
US20200015335A1 (en) | 2020-01-09 |
US10966300B2 (en) | 2021-03-30 |
JP2015188094A (ja) | 2015-10-29 |
US20180295688A1 (en) | 2018-10-11 |
CN105428385A (zh) | 2016-03-23 |
US10334674B2 (en) | 2019-06-25 |
US7982409B2 (en) | 2011-07-19 |
EP2401775A4 (en) | 2015-11-11 |
CN105428385B (zh) | 2019-09-06 |
US9634062B2 (en) | 2017-04-25 |
US9472593B2 (en) | 2016-10-18 |
EP2401775B1 (en) | 2019-07-03 |
WO2010098922A3 (en) | 2010-11-18 |
CN102318087A (zh) | 2012-01-11 |
WO2010098922A2 (en) | 2010-09-02 |
US9913333B2 (en) | 2018-03-06 |
US20210280758A1 (en) | 2021-09-09 |
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