JP2009534792A - 全般照明用の固体照明器具 - Google Patents
全般照明用の固体照明器具 Download PDFInfo
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
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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
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- G—PHYSICS
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
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- G01J1/30—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors
- G01J1/32—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors adapted for automatic variation of the measured or reference value
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
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- 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
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- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Signal Processing (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (37)
- 照明パネルの主平面に平行な第1の面を有する少なくとも1つのタイルと、
前記少なくとも1つのタイルの前記第1の面の上に配置され、光を発するように構成された複数の固体照明デバイスと、
前記少なくとも1つのタイルの前記第1の面の上の反射シートと、
前記反射シートの上の輝度増強フィルムと
を備え、
前記反射シートは、前記少なくとも1つのタイルと前記輝度増強フィルムとの間に配置されており、
前記輝度増強フィルムは、第1の方向を有する光を前記照明パネルから優先的に放出し、前記第1の方向とは異なる第2の方向を有する光を優先的に反射して前記照明パネルへ戻すように構成されていることを特徴とする照明パネル。 - 前記反射シートは、前記反射シートに入射した光を反射し、散乱させるように構成されていることを特徴とする請求項1に記載の照明パネル。
- 前記反射シートは、前記反射シートを貫通した複数の開口を備え、
前記複数の開口はそれぞれ、前記複数の固体照明デバイスのうちの対応する1つの固体照明デバイスと整列していることを特徴とする請求項1に記載の照明パネル。 - 前記開口はそれぞれ、それによって前記複数の固体照明デバイスのうちの前記対応する1つの固体照明デバイスの周囲に反射光学空洞を形成する傾斜した側壁を備えることを特徴とする請求項3に記載の照明パネル。
- 前記反射シートはプラスチック発泡体を含むことを特徴とする請求項1に記載の照明パネル。
- 前記反射シートと前記輝度増強フィルムの間の拡散シートをさらに備えることを特徴とする請求項1に記載の照明パネル。
- 前記輝度増強フィルムは、前記輝度増強フィルムを通過する少なくとも一部の光線を前記照明パネルの前記主平面に垂直な方向に向けて曲げるように構成された複数の3次元光抽出形体を備えることを特徴とする請求項1に記載の照明パネル。
- 前記光抽出形体はランダムな形体であることを特徴とする請求項7に記載の照明パネル。
- 前記輝度増強フィルムは、前記複数の固体発光デバイスによって発せられた光が前記照明パネルから直接に放出されることを制限し、それによって前記照明パネル内での光の再循環/拡散を促進するように構成されていることを特徴とする請求項7に記載の照明パネル。
- 前記光抽出形体はフレネル型レンズを備えることを特徴とする請求項7に記載の照明パネル。
- 前記輝度増強フィルムは、前記照明パネルによって放出される光を実質的に平行にするように構成されていることを特徴とする請求項7に記載の照明パネル。
- 前記第1の面の反対側の前記少なくとも1つのタイルの第2の面の上にあって、前記少なくとも1つのタイルから、前記少なくとも1つのタイルからの光放出方向とは反対の方向に、熱を引き離すように構成されたヒートシンクパネルをさらに備えることを特徴とする請求項1に記載の照明パネル。
- 前記ヒートシンクパネルは黒い陽極酸化アルミニウムを含むことを特徴とする請求項12に記載の照明パネル。
- 前記ヒートシンクパネルは、前記ヒートシンクパネルの熱抵抗を低減させるように構成された複数のヒートシンク形体を備えることを特徴とする請求項13に記載の照明パネル。
- 前記複数のヒートシンク形体は複数の冷却フィンを備えることを特徴とする請求項14に記載の照明パネル。
- 前記複数のヒートシンク形体はそれぞれ、前記複数の固体発光デバイスのうちの対応する1つの固体発光デバイスと整列していることを特徴とする請求項14に記載の照明パネル。
- 全般照明に適合された照明器具であって、
少なくとも1つのタイルと、電気的に接続されて列を形成し、前記少なくとも1つのタイルの第1の面の上に配置され、主波長の光を発するように構成された複数の固体照明デバイスと、前記少なくとも1つのタイルの前記第1の面の上の反射シートと、前記反射シートの上の輝度増強フィルムとを有する照明パネルであって、前記反射シートが、前記少なくとも1つのタイルと前記輝度増強フィルムとの間に配置された照明パネルと、
制御信号に応答して前記列にオン状態駆動電流を供給するように構成された電流供給回路と、
前記複数の固体照明デバイスのうちの少なくとも1つの固体照明デバイスから光を受け取るように配置された光センサと、
前記光センサから出力信号を受け取り、前記光センサの前記出力信号に応じて前記制御信号を調整し、それによって、前記電流供給回路によって前記列に供給される平均電流を調整するように構成された制御システムと
を備えることを特徴とする照明器具。 - 前記電流供給回路は、閉ループ可変電圧ブースト変換電流源を備えることを特徴とする請求項17に記載の照明器具。
- 前記制御システムは、周辺光値を得るために、固体照明デバイスの前記列に電流が供給されていないときに、前記光センサの前記出力をサンプリングするように構成されていることを特徴とする請求項17に記載の照明器具。
- 前記制御システムは、前記周辺光値が増大したときに前記列への平均電流を低下させるように構成されていることを特徴とする請求項19に記載の照明器具。
- 前記制御システムは、輝度値を得るために、前記列に電流が供給されている時間間隔中に、前記光センサからサンプリングするように構成されていることを特徴とする請求項17に記載の照明器具。
- 前記制御システムは、前記輝度値が増大したときに、前記第1の列への前記平均電流を低下させるように構成されていることを特徴とする請求項21に記載の照明器具。
- 前記制御システムは、前記周辺光値および前記輝度値に基づいて、前記列に供給される前記平均電流を調整するように構成されていることを特徴とする請求項22に記載の照明器具。
- 前記制御システムは、前記周辺光値と前記輝度値との差に基づいて、前記列に供給される前記平均電流を調整するように構成されていることを特徴とする請求項23に記載の照明器具。
- 前記制御システムは、前記周辺光値と前記輝度値との比に基づいて、前記列に供給される前記平均電流を調整するように構成されていることを特徴とする請求項23に記載の照明器具。
- 前記制御システムは、周囲/背景照明とは無関係に、前記第1の列の平均輝度を維持するように構成されていることを特徴とする請求項23に記載の照明器具。
- 前記制御システムは、前記周辺光値に関する第1のフィードバック信号および前記輝度値に関する第2のフィードバック信号を供給することによって、周囲/背景照明と前記列の平均輝度との間の関係を維持するように構成されていることを特徴とする請求項23に記載の照明器具。
- 前記制御信号はパルス幅変調(PWM)信号を含み、
前記制御システムは、前記PWM信号のデューティサイクルを変化させることによって、前記列に供給される平均電流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17に記載の照明器具。 - 前記制御システムは、前記制御信号のパルス周波数を変化させることによって、前記列に供給される平均電流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17に記載の照明器具。
- 前記電流供給回路は、前記列に供給される前記平均電流が変更されたときでも、前記列に供給される前記オン状態電流を実質的に一定の値に維持するように構成されていることを特徴とする請求項17に記載の照明器具。
- 前記制御システムは、前記光センサに結合され、前記光センサの前記出力信号をサンプリングおよび処理し、処理された前記出力信号を前記制御システムに供給するように構成された色管理ユニットを備えることを特徴とする請求項17に記載の照明器具。
- 前記照明パネルに関連した温度を感知するように構成された温度センサをさらに備え、
前記制御システムは、感知された前記温度の変化に応じて、前記第1の列に供給される平均電流を調整するように構成されていることを特徴とする請求項17に記載の照明器具。 - 少なくとも1つのタイルと、少なくとも、前記少なくとも1つのタイルの第1の面の上にあって、第1の主波長の光を発するように構成された固体照明デバイスの第1の列、および、前記少なくとも1つのタイルの前記第1の面の上にあって、前記第1の主波長とは異なる第2の主波長の光を発するように構成された固体照明デバイスの第2の列と、前記少なくとも1つのタイルの前記第1の面の上の反射シートと、前記反射シートの上の輝度増強フィルムとを有する照明パネルであって、前記反射シートが、前記少なくとも1つのタイルと前記輝度増強フィルムとの間に配置された照明パネルと、
第1の制御信号に応答して前記第1の列にオン状態駆動電流を供給するように構成された第1の電流供給回路と、
第2の制御信号に応答して前記第2の列にオン状態駆動電流を供給するように構成された第2の電流供給回路と、
前記第1の列内の少なくとも1つの固体照明デバイス、および、前記第2の列内の少なくとも1つの固体照明デバイスから光を受け取るように配置された光センサと、
前記光センサから出力信号を受け取り、前記光センサの前記出力信号に応じて前記第1の制御信号および/または前記第2の制御信号を調整し、それによって、前記第1の電流供給回路によって前記第1の列に供給される平均電流を調整し、かつ/または前記第2の電流供給回路によって前記第2の列に供給される平均電流を調整するように構成された制御システムであって、前記光センサ、前記制御システム並びに前記第1および第2の電流供給回路が、前記照明パネルに対するフィードバックループを形成する制御システムと
を備え、
前記第1および第2の制御信号はパルス幅変調(PWM)信号を含み、
前記制御システムは、前記第1および/または第2の制御信号のデューティサイクルを変化させることによって、前記第1および/または第2の列に供給される平均電流を制御するように構成されていることを特徴とする照明器具。 - 前記第1の制御信号のパルスの前縁は、前記第2の制御信号のパルスの前縁とは異なる時刻に発生することを特徴とする請求項33に記載の照明器具。
- 前記第1の制御信号の前記パルスの前記前縁は、前記第2の制御信号の前記パルスの前記前縁から、固定遅延だけ遅延されることを特徴とする請求項34に記載の照明器具。
- 前記第1の制御信号の前記パルスの前記前縁は、前記第2の制御信号の前記パルスの前記前縁から、可変遅延だけ遅延されることを特徴とする請求項34に記載の照明器具。
- 前記可変遅延は、ランダムな、無秩序な、または掃引関数、テーブルもしくは他の技法によって決定された遅延間隔、かつ/あるいは前記第1の制御信号および/または前記第2の制御信号のパルス幅に応じた遅延間隔の範囲内で変化することを特徴とする請求項36に記載の照明器具。
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- 2007-04-18 JP JP2009506542A patent/JP2009534792A/ja active Pending
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- 2012-11-26 JP JP2012257767A patent/JP6095335B2/ja active Active
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JP2002072901A (ja) * | 2000-08-25 | 2002-03-12 | Nippon Seiki Co Ltd | バックライト装置 |
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JP2015146437A (ja) * | 2011-05-27 | 2015-08-13 | シャープ株式会社 | 発光装置、および照明装置 |
JP2013233033A (ja) * | 2012-04-27 | 2013-11-14 | Rohm Co Ltd | バックライト用ledストリングの駆動回路および駆動方法、ならびにそれを用いたバックライト装置および電子機器 |
JP2017188489A (ja) * | 2016-03-31 | 2017-10-12 | Hoya Candeo Optronics株式会社 | Led基板及びそれを有する光照射装置 |
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JP2018032706A (ja) * | 2016-08-24 | 2018-03-01 | 日亜化学工業株式会社 | Ledモジュールの製造方法及びledモジュール |
Also Published As
Publication number | Publication date |
---|---|
EP2010817B1 (en) | 2016-09-07 |
US20130140430A1 (en) | 2013-06-06 |
WO2007127104A2 (en) | 2007-11-08 |
US8294075B2 (en) | 2012-10-23 |
JP6095335B2 (ja) | 2017-03-15 |
US20160010830A1 (en) | 2016-01-14 |
JP2012059716A (ja) | 2012-03-22 |
WO2007127104A3 (en) | 2008-08-14 |
EP2010817A2 (en) | 2009-01-07 |
US8946609B2 (en) | 2015-02-03 |
TWI436129B (zh) | 2014-05-01 |
US20070247414A1 (en) | 2007-10-25 |
JP2013041853A (ja) | 2013-02-28 |
US7777166B2 (en) | 2010-08-17 |
JP6083927B2 (ja) | 2017-02-22 |
TW200811546A (en) | 2008-03-01 |
US9605835B2 (en) | 2017-03-28 |
US20100294913A1 (en) | 2010-11-25 |
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