JP2005259699A - Ledを利用して白色光を生じるシステム及びその動作方法 - Google Patents
Ledを利用して白色光を生じるシステム及びその動作方法 Download PDFInfo
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- JP2005259699A JP2005259699A JP2005065950A JP2005065950A JP2005259699A JP 2005259699 A JP2005259699 A JP 2005259699A JP 2005065950 A JP2005065950 A JP 2005065950A JP 2005065950 A JP2005065950 A JP 2005065950A JP 2005259699 A JP2005259699 A JP 2005259699A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
- G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
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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
-
- 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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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133624—Illuminating devices characterised by their spectral emissions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
Abstract
【解決手段】照明システムは、少なくとも1つの白色発光ダイオード(110)と複数カラーLED(112)を含む光源(104)と、前記光源から放出される光を検出し、前記光の検出に応答して、前記光源から放出される光を調整するように構成されたスペクトル・フィードバック制御システム(106)とを具備する。
【選択図】図1
Description
前記光源から放出される光を検出し、前記光の検出に応答して、前記光源から放出される光を調整するように構成されたスペクトル・フィードバック制御システム(106)とを具備することを特徴とする照明システムを提供する。
106 スペクトル・フィードバック制御システム
110 白色LED
112 カラーLED
120 カラー・センサ
122 コントローラ
Claims (10)
- 少なくとも1つの白色発光ダイオードと複数カラーLEDを含む光源と、
前記光源から放出される光を検出し、前記光の検出に応答して、前記光源から放出される光を調整するように構成されたスペクトル・フィードバック制御システムとを具備することを特徴とする照明システム。 - 前記スペクトル・フィードバック制御システムが、各色毎にカラーLEDを制御するように構成されていることを特徴とする、請求項1に記載の照明システム。
- 前記少なくとも1つの白色光LEDが、少なくとも1つの蛍光体変換白色LEDを含み、前記カラーLEDが赤色、緑色、及び、青色LEDを含むことを特徴とする、請求項2に記載の照明システム。
- 前記スペクトル・フィードバック制御システムが、さらに、各色毎に着色LEDを制御するのに用いられる色特定フィードバック信号を加えるように構成されたカラー・センサを含むことを特徴とする、請求項2に記載の照明システム。
- 少なくとも1つの白色LEDが蛍光体変換白色LEDであることを特徴とする、請求項4に記載の照明システム。
- 前記スペクトル・フィードバック制御システムが、各色毎に着色LEDを制御して、前記光源から放出される光の輝度及びクロミナンス特性を維持するように構成されたコントローラを含むことを特徴とする、請求項1に記載の照明システム。
- 前記スペクトル・フィードバック制御システムが、色特定フィードバック信号を加えるように構成されたカラー・センサを含むことを特徴とする、請求項1に記載の照明システム。
- 照明システムを動作させるための方法であって、
少なくとも1つの蛍光体変換白色発光ダイオードと複数カラーLEDを含む光源に駆動信号を加えるステップと、
前記駆動信号に応答して発生する光を検出するステップと、
前記検出光に応答して、フィードバック信号を発生するステップと、
前記光源に加えられる前記駆動信号を調整するステップとを有することを特徴とする方法。 - 前記光の検出ステップが、色特定フィードバック信号を発生するステップを含むことを特徴とする、請求項8に記載の方法。
- 前記駆動信号の調整ステップが、前記色特定情報に応答して、各色毎にカラーLEDの駆動信号を調整するステップを含むことを特徴とする、請求項9に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US10/798,010 US7009343B2 (en) | 2004-03-11 | 2004-03-11 | System and method for producing white light using LEDs |
Publications (1)
Publication Number | Publication Date |
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JP2005259699A true JP2005259699A (ja) | 2005-09-22 |
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Application Number | Title | Priority Date | Filing Date |
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JP2005065950A Pending JP2005259699A (ja) | 2004-03-11 | 2005-03-09 | Ledを利用して白色光を生じるシステム及びその動作方法 |
Country Status (4)
Country | Link |
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US (1) | US7009343B2 (ja) |
JP (1) | JP2005259699A (ja) |
CN (1) | CN1668158B (ja) |
DE (1) | DE102005001685A1 (ja) |
Cited By (13)
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JP2007141834A (ja) * | 2005-11-14 | 2007-06-07 | Agilent Technol Inc | 白色光を発生するためのシステム及び方法 |
JP2007206282A (ja) * | 2006-01-31 | 2007-08-16 | Toshiba Corp | 情報処理装置、及び輝度制御方法 |
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JP2009516895A (ja) * | 2005-11-22 | 2009-04-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 複数セットの光源を備えた照明システム |
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JP2009521077A (ja) * | 2005-12-21 | 2009-05-28 | パーキンエルマー エルコス ゲーエムベーハー | 照明装置、照明制御装置および照明システム |
JP2010507891A (ja) * | 2006-10-27 | 2010-03-11 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | カラー制御光源及び光源内のカラー生成を制御する方法 |
JP2010528432A (ja) * | 2007-05-20 | 2010-08-19 | スリーエム イノベイティブ プロパティズ カンパニー | カラーled光源を効率的に利用した白色光バックライト及び類似製品 |
JP2011054576A (ja) * | 2006-09-18 | 2011-03-17 | Avago Technologies Ecbu Ip (Singapore) Pte Ltd | 色空間の限られた領域で光を発する効率的な固体光源 |
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Also Published As
Publication number | Publication date |
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US20050200295A1 (en) | 2005-09-15 |
CN1668158A (zh) | 2005-09-14 |
DE102005001685A1 (de) | 2005-09-29 |
US7009343B2 (en) | 2006-03-07 |
CN1668158B (zh) | 2010-10-27 |
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