JP2022551275A - 自動車のデジタル照明装置の設定値を適合させるための方法 - Google Patents
自動車のデジタル照明装置の設定値を適合させるための方法 Download PDFInfo
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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
- G09G3/22—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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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
- G09G3/3433—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 using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/346—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 using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors
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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]
- H05B45/10—Controlling the intensity 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]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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]
- H05B45/40—Details of LED load circuits
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/18—Controlling the light source by remote control via data-bus transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
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- G—PHYSICS
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- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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- G—PHYSICS
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- 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
- G09G2320/066—Adjustment of display parameters for control of contrast
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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
- G09G2380/00—Specific applications
- G09G2380/10—Automotive applications
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- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims (12)
- マトリックス光源(110)と光学系(120)とを備えた自動車のデジタル照明ユニット(100)によって投影されることを意図したデジタル照明設定値(10)を適合させる方法であって、前記デジタル照明設定値(10)は前記マトリックス光源の各要素光源(112)に対する要素光強度設定値(12)を含み、前記方法は、
a) 演算ユニット(130)によって、各要素光強度設定値(12)を、前記要素光強度設定値(12)を達成するために前記要素光源(112)に印加すべき電気信号のパラメータ(12’)に変換するステップと、
b) 演算ユニット(130)によって、パラメータのセットをまとめてグループ化した行列(10’)にデジタルフィルタリング(F)を適用するステップであって、当該ステップはフィルタリングされたパラメータ(F(10’))を照明ユニット(100)に中継する前に行われ、与えられたパラメータ(12’)の前記デジタルフィルタリング(F)は、対応する要素光源(112)の光応答を考慮して行われ、この光応答には、対応する投影ピクセルR(112)の光強度、および前記投影ピクセルR(112)の所定の空間的近傍V(112)の一部を形成する投影ピクセルの光強度に関して、前記要素光源(112)によって生成される光ビームの寄与が含まれる、前記デジタルフィルタリング(F)を適用するステップと、
を備えていることを特徴とする、方法。 - 前記電気信号はパルス幅変調された電気信号であり、前記パラメータはこの電気信号のデューティサイクルである、請求項1記載の方法。
- 各要素光源に対して、当該要素光源(112)によって投射される光応答R(112)、V(112)を測定する予備ステップを含むことを特徴とする、請求項1または2記載の方法。)
- 各要素光源に対する前記光応答が分布行列P(112)の形式でメモリ要素子に記憶され、前記行列P(112)は、当該要素光源(112)によって生成された光ビームのデジタル化された寄与を含み、この寄与は、中心成分としての対応する投影ピクセルR(112)の光強度に関するものであり、前記行列P(112)は、前記要素光源(112)によって生成された光ビームのデジタル化された寄与をさらに含み、この寄与は、前記投影ピクセルR(112)の所定の空間的近傍V(112)の一部を形成する周辺成分としての複数の投影ピクセルの光強度に関するものであり、前記行列P(112)の各成分は投影ピクセルに対応していることを特徴とする、請求項3に記載の方法。
- デジタルフィルタリング(F)を適用するステップは、以下のステップ、すなわち、
- 要素光源(112)および分布行列P(112)に関連付けられた、パラメータの行列(10’)の各パラメータ(12’)に対して、前記分布行列P(112)によって定義される前記近傍V(112)に対応する近傍の複数のパラメータV(12’)を考慮するステップと
- 前記演算ユニット(130)を用いて、前記分布行列P(112)及び前記近傍の複数のパラメータV(12’)の正規表現の要素を1つずつ乗算するステップと、
- 前記演算ユニット(130)を用いて、これらの乗算の結果の算術平均を計算し、フィルタリングされたパラメータF(12’)を得るステップと、
を含むことを特徴とする請求項4に記載の方法。 - 前記変換するステップは、各要素光源(112)に対して以前に定義された変換関数を適用することを含むことを特徴とする、請求項1から5のうちのいずれか一項に記載の方法。
- 前記フィルタリング(F)は、前記要素光強度設定値(12)の各々に対して専用のデジタルフィルタを適用することを含むことを特徴とする、請求項1から6のうちのいずれか一項に記載の方法。
- 前記フィルタリング(F)は、前記要素光強度設定値(12)の各列または各行に対して専用のデジタルフィルタを適用することを含むことを特徴とする、請求項1から7のうちのいずれか一項に記載の方法。
- 照明設定値が、前記照明装置の投影解像度に少なくとも等しい解像度を有するデジタル画像に対応していることを特徴とする、請求項1から8のうちのいずれか一項に記載の方法。
- 複数の要素光源(112)を含むマトリックス光源(110)を有すると共に光学系(120)を有するデジタル照明ユニット(100)を備えた自動車用照明装置(20)であって、前記装置(20)が、照明設定値(10)を受け取ることを意図したデータ受信ユニット(140)を更に備えたものにおいて、
前記装置は、請求項1から9のうちのいずれか一項に記載の方法に従って、受信した照明設定値(10)を適合させるように構成された演算ユニット(130)を備え、前記装置は、フィルタリングされたパラメータF(10’)によってパラメータ化された電気信号によって照明ユニット(100)を制御することを意図した制御ユニット(150)をさらに備えていることを特徴とする、装置。 - プロセッサによって実行されると、前記プロセッサが請求項1から9のうちのいずれか一項に記載の方法を実施することになる一連の命令を含むコンピュータプログラム。
- 非一時的なコンピュータ読み取り可能な記憶媒体であって、前記媒体は、請求項11に記載のコンピュータプログラムを記憶していることを特徴とする、非一時的なコンピュータ読み取り可能な記憶媒体。
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FR1911047 | 2019-10-04 | ||
FR1911047A FR3101693A1 (fr) | 2019-10-04 | 2019-10-04 | Procede d’adaptation de consignes pour une unite d’eclairage numerique d’un vehicule automobile |
PCT/EP2020/077287 WO2021063977A1 (fr) | 2019-10-04 | 2020-09-30 | Procede d'adaptation de consignes pour une unite d'eclairage numerique d'un vehicule automobile |
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US (1) | US11937347B2 (ja) |
EP (1) | EP4037938A1 (ja) |
JP (1) | JP7326602B2 (ja) |
CN (1) | CN114503185B (ja) |
FR (1) | FR3101693A1 (ja) |
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FR3101691B1 (fr) * | 2019-10-04 | 2022-07-08 | Valeo Vision | Procede de contrôle d’un dispositif lumineux pour l’emission d’un faisceau lumineux pixelise |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060103621A1 (en) * | 2004-11-16 | 2006-05-18 | Sharp Laboratories Of America, Inc. | Technique that preserves specular highlights |
US20090109165A1 (en) * | 2007-10-31 | 2009-04-30 | Mun-Soo Park | Display device and driving method thereof |
US20110267455A1 (en) * | 2007-08-24 | 2011-11-03 | Hella Kgaa Hueck & Co. | System for generating a light beam in the area in front of a motor vehicle |
US20170305327A1 (en) * | 2015-03-04 | 2017-10-26 | Hella Kgaa Hueck & Co. | Method for calibrating a lighting apparatus |
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US7684007B2 (en) * | 2004-08-23 | 2010-03-23 | The Boeing Company | Adaptive and interactive scene illumination |
DE102014108239A1 (de) * | 2014-06-12 | 2015-12-17 | Hella Kgaa Hueck & Co. | Verfahren zur adaptiven Steuerung eines hochauflösenden Scheinwerfersystems |
FR3062217B1 (fr) | 2017-01-20 | 2021-03-19 | Valeo Vision | Aboutage de sources lumineuses pixelisees |
FR3079468B1 (fr) | 2018-04-03 | 2020-03-20 | Valeo Vision | Dispositif lumineux pour un vehicule automobile realisant une fonction d’ecriture au sol |
DE102019118381A1 (de) * | 2019-07-08 | 2021-01-14 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung und Homogenisierungsverfahren für Fahrzeuge |
-
2019
- 2019-10-04 FR FR1911047A patent/FR3101693A1/fr active Pending
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- 2020-09-30 CN CN202080069420.9A patent/CN114503185B/zh active Active
- 2020-09-30 JP JP2022520627A patent/JP7326602B2/ja active Active
- 2020-09-30 EP EP20776196.6A patent/EP4037938A1/fr active Pending
- 2020-09-30 US US17/766,473 patent/US11937347B2/en active Active
- 2020-09-30 WO PCT/EP2020/077287 patent/WO2021063977A1/fr unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060103621A1 (en) * | 2004-11-16 | 2006-05-18 | Sharp Laboratories Of America, Inc. | Technique that preserves specular highlights |
US20110267455A1 (en) * | 2007-08-24 | 2011-11-03 | Hella Kgaa Hueck & Co. | System for generating a light beam in the area in front of a motor vehicle |
US20090109165A1 (en) * | 2007-10-31 | 2009-04-30 | Mun-Soo Park | Display device and driving method thereof |
US20170305327A1 (en) * | 2015-03-04 | 2017-10-26 | Hella Kgaa Hueck & Co. | Method for calibrating a lighting apparatus |
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EP4037938A1 (fr) | 2022-08-10 |
US11937347B2 (en) | 2024-03-19 |
JP7326602B2 (ja) | 2023-08-15 |
US20230269842A1 (en) | 2023-08-24 |
CN114503185B (zh) | 2024-05-24 |
FR3101693A1 (fr) | 2021-04-09 |
WO2021063977A1 (fr) | 2021-04-08 |
CN114503185A (zh) | 2022-05-13 |
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