KR101011662B1 - Led 기반 발광을 위한 컬러 제어 - Google Patents
Led 기반 발광을 위한 컬러 제어 Download PDFInfo
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- KR101011662B1 KR101011662B1 KR1020047009711A KR20047009711A KR101011662B1 KR 101011662 B1 KR101011662 B1 KR 101011662B1 KR 1020047009711 A KR1020047009711 A KR 1020047009711A KR 20047009711 A KR20047009711 A KR 20047009711A KR 101011662 B1 KR101011662 B1 KR 101011662B1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0457—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
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- H—ELECTRICITY
- 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]
- H05B45/20—Controlling the colour of the light
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- H—ELECTRICITY
- 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]
- H05B45/20—Controlling the colour of the light
- H05B45/22—Controlling the colour of the light using optical feedback
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Spectrometry And Color Measurement (AREA)
- Color Image Communication Systems (AREA)
- Led Device Packages (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
Description
Claims (10)
- 복수의 적색, 녹색 및 청색 발광 다이오드들(발광 다이오드는 LED라 약칭함)에 의해서 원하는 광 컬러를 발생하기 위한 LED 컬러 제어 시스템(10)에 있어서,발생된 광의 컬러 좌표들을 측정하기 위해 상기 복수의 LEDs에 의해서 발생된 광 컬러에 응답하는 센서(24)로서, 상기 컬러 좌표들은 제 1 컬러 공간에서 규정되는, 상기 센서;상기 발생된 광의 상기 좌표들을 제 2 컬러 공간으로 변환하기 위해 상기 센서에 결합되는 제 1 변환 모듈(28);원하는 광 컬러에 대응하는 기준 컬러 좌표들을 제공하기 위해서 구성된 제 2 변환 모듈(30)로서, 상기 기준 컬러 좌표들은 상기 제 2 컬러 공간으로 표현되는, 상기 제 2 변환 모듈;상기 원하는 광 컬러에 대응하는 상기 기준 컬러 좌표들과 상기 발생된 광의 상기 컬러 좌표들 사이의 차에 대응하는 에러 컬러 좌표를 발생하기 위해 구성된 상기 제 1 및 제 2 변환 모듈들(28, 30)에 결합되는 가산기(16); 및상기 가산기에 결합되며, 상기 LEDs을 구동하기 위해서 구동 신호를 발생하도록 구성되는 구동기 모듈(20)을 포함하고,상기 제 1 컬러 공간은 CIE 표준화된 X, Y, Z 컬러 공간이고, 상기 제 1 변환 모듈(28)은 상기 X, Y, Z 컬러 좌표들을 MacAdam 컬러 좌표들로 변환하고, 상기 MacAdam 컬러 좌표들을 Farnsworth 컬러 좌표들로 변환하는 것을 특징으로 하는, LED 컬러 제어 시스템.
- 삭제
- 삭제
- 제 1 항에 있어서,상기 가산기(16)에 결합된 제어기(18)를 더 포함하며, 상기 제어기는 상기 적색, 녹색 및 청색 LEDs에 각각 대응하는 제어 전압 신호들을 발생하는, LED 컬러 제어 시스템.
- 제 1 항 또는 제 4 항에 있어서,상기 센서(24)는 트라이스티뮬러스 필터(tristimulus filter)인, LED 컬러 제어 시스템.
- 삭제
- 삭제
- 제 1 항 또는 제 4 항에 있어서,상기 제 2 변환 모듈(30)은 상기 제 1 변환 모듈(28)에 결합되어, 변환 계수들을 상기 제 1 변환 모듈로 제공하는, LED 컬러 제어 시스템.
- 제 8 항에 있어서,상기 변환 계수들은 상기 대응하는 원하는 광 컬러에 따라서 변동하는, LED 컬러 제어 시스템.
- 제 1 항 또는 제 4 항에 있어서,MacAdam 공간으로 변환하기 위해,x = X/(X + Y + Z)y = Y/(X + Y + Z)에 따라서 값들을 할당하는 단계를 더 포함하는 상기 X, Y, Z 컬러 좌표들을 변환하는 상기 단계를 수행하기 위한 수단; 및Farnsworth 공간으로 변환하기 위해,에 따라서 값들을 할당하는 단계를 통해서 상기 x, y 컬러 좌표들을 변환하는 수단을 더 포함하고, 상기 계수들 a11, a12, a13, a21, a22, a23, b1, b2, b3은 모두 (x, y) 좌표 시스템의 모든 공간 함수들인, LED 컬러 제어 시스템.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/024,737 | 2001-12-19 | ||
US10/024,737 US6552495B1 (en) | 2001-12-19 | 2001-12-19 | Adaptive control system and method with spatial uniform color metric for RGB LED based white light illumination |
PCT/IB2002/005043 WO2003053111A1 (en) | 2001-12-19 | 2002-11-29 | Colour control for led-based luminaire |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040069336A KR20040069336A (ko) | 2004-08-05 |
KR101011662B1 true KR101011662B1 (ko) | 2011-01-28 |
Family
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020047009711A Expired - Fee Related KR101011662B1 (ko) | 2001-12-19 | 2002-11-29 | Led 기반 발광을 위한 컬러 제어 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6552495B1 (ko) |
EP (1) | EP1461982B1 (ko) |
JP (1) | JP4198599B2 (ko) |
KR (1) | KR101011662B1 (ko) |
CN (1) | CN100531503C (ko) |
AT (1) | ATE443426T1 (ko) |
AU (1) | AU2002351060A1 (ko) |
DE (1) | DE60233752D1 (ko) |
WO (1) | WO2003053111A1 (ko) |
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US6552495B1 (en) | 2003-04-22 |
AU2002351060A1 (en) | 2003-06-30 |
DE60233752D1 (de) | 2009-10-29 |
CN1633828A (zh) | 2005-06-29 |
JP4198599B2 (ja) | 2008-12-17 |
EP1461982B1 (en) | 2009-09-16 |
CN100531503C (zh) | 2009-08-19 |
EP1461982A1 (en) | 2004-09-29 |
WO2003053111A1 (en) | 2003-06-26 |
KR20040069336A (ko) | 2004-08-05 |
ATE443426T1 (de) | 2009-10-15 |
JP2005513724A (ja) | 2005-05-12 |
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