JP6959852B2 - 照明装置 - Google Patents
照明装置 Download PDFInfo
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- JP6959852B2 JP6959852B2 JP2017245336A JP2017245336A JP6959852B2 JP 6959852 B2 JP6959852 B2 JP 6959852B2 JP 2017245336 A JP2017245336 A JP 2017245336A JP 2017245336 A JP2017245336 A JP 2017245336A JP 6959852 B2 JP6959852 B2 JP 6959852B2
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- Prior art keywords
- liquid crystal
- crystal element
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- light
- lighting device
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 83
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000005286 illumination Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 description 29
- 239000000758 substrate Substances 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Images
Classifications
-
- 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
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
-
- 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
-
- 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
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/135—Polarised
-
- 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]
-
- 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]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
-
- 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
- F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- 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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
-
- 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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/20—Illuminance distribution within the emitted light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Description
光軸に沿って照明光を出射する光源と、
前記光軸に沿った位置に配置され、ハイビーム相当領域に電極パターンを有する液晶素子と、
前記液晶素子の前後両側に配置された偏光子対と、
前記電極パターンに印加する電圧を形成する駆動回路と、
前記偏光子対間で、前記液晶素子のロービーム相当領域に対応して配置された位相差形成手段と、
を含み、前記偏光子対はクロスニコル配置であり、前記液晶素子の電極パターンを有するハイビーム相当領域と前記偏光子対はノーマリーブラック型液晶装置を構成し、前記液晶素子のロービーム相当領域と、前記位相差形成手段と、前記偏光子対とはノーマリーオンの透光領域を構成する照明装置
が提供される。
5 液晶層、 6 電極パターン、 7 (ロービーム)スイブル配光電極、
8 無電極領域、 9 位相差板、 10 投影光学系、 11 照明装置、
12 駆動回路、 13 配光制御ユニット、 21 リフレクタ、
25 制御回路、
P 偏光子(P1,P2),
Claims (6)
- 光軸に沿って照明光を出射する光源と、
前記光軸に沿った位置に配置され、ハイビーム相当領域に電極パターンを有する液晶素子と、
前記液晶素子の前後両側に配置された偏光子対と、
前記電極パターンに印加する電圧を形成する駆動回路と、
前記偏光子対間で、前記液晶素子のロービーム相当領域に対応して配置された位相差形成手段と、
を含み、前記偏光子対はクロスニコル配置であり、前記液晶素子の電極パターンを有するハイビーム相当領域と前記偏光子対はノーマリーブラック型液晶装置を構成し、前記液晶素子のロービーム相当領域と、前記位相差形成手段と、前記偏光子対とはノーマリーオンの透光領域を構成する照明装置。 - 前記液晶素子は、前記ロービーム相当領域の前記ハイビーム相当領域に隣接する領域にカットオフを形成する、請求項1に記載の照明装置。
- 前記位相差形成手段は、前記液晶素子に密着配置ないし一体化されている、請求項1または2に記載の照明装置。
- 前記位相差形成手段は、1枚の(λ/2)位相差形成手段、又は2枚の(λ/4)位相差形成手段である、請求項1〜3のいずれか1項に記載の照明装置。
- 前記液晶素子を透過し、下流側の偏光子を通過した光を前方に投影する投影光学系をさらに含む、請求項1〜4のいずれか1項に記載の照明装置。
- 前記投影光学系の焦点位置は前記液晶素子の電極パターンに合わせてある、請求項5に記載の照明装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017245336A JP6959852B2 (ja) | 2017-12-21 | 2017-12-21 | 照明装置 |
CN201811577708.8A CN110006002B (zh) | 2017-12-21 | 2018-12-20 | 照明装置 |
EP18214690.2A EP3501896B1 (en) | 2017-12-21 | 2018-12-20 | Lighting device |
US16/231,350 US10738958B2 (en) | 2017-12-21 | 2018-12-21 | Lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017245336A JP6959852B2 (ja) | 2017-12-21 | 2017-12-21 | 照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019114358A JP2019114358A (ja) | 2019-07-11 |
JP6959852B2 true JP6959852B2 (ja) | 2021-11-05 |
Family
ID=64755199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017245336A Active JP6959852B2 (ja) | 2017-12-21 | 2017-12-21 | 照明装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10738958B2 (ja) |
EP (1) | EP3501896B1 (ja) |
JP (1) | JP6959852B2 (ja) |
CN (1) | CN110006002B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220289922A1 (en) | 2019-06-20 | 2022-09-15 | Fukuvi Chemical Industry Co., Ltd. | Fiber-reinforced epoxy resin composite sheet, fiber-reinforced composite plate and fiber-reinforced molded article, and method for producing same |
JP7294970B2 (ja) | 2019-09-20 | 2023-06-20 | スタンレー電気株式会社 | 車両用灯具システム |
US20230056771A1 (en) * | 2020-01-17 | 2023-02-23 | Magna Closures Inc. | Anti-glare vehicle headlights |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004235127A (ja) * | 2003-02-03 | 2004-08-19 | Honda Motor Co Ltd | 投光装置 |
WO2005003850A1 (en) * | 2003-07-01 | 2005-01-13 | Koninklijke Philips Electronics N.V. | Illumination system |
JP2005183327A (ja) * | 2003-12-24 | 2005-07-07 | Stanley Electric Co Ltd | 車両前照灯 |
EP2013536B1 (en) * | 2006-04-21 | 2009-09-02 | Koninklijke Philips Electronics N.V. | Lamp unit for an adaptive front lighting system for a vehicle |
CN101592300B (zh) * | 2009-07-08 | 2011-01-05 | 台州职业技术学院 | 一种安全车灯 |
JP2011258500A (ja) * | 2010-06-11 | 2011-12-22 | Stanley Electric Co Ltd | 車両用灯具 |
JP2012069458A (ja) * | 2010-09-27 | 2012-04-05 | Stanley Electric Co Ltd | 車両用灯具 |
JP5844074B2 (ja) * | 2011-06-16 | 2016-01-13 | 株式会社小糸製作所 | 車両の前照灯制御装置 |
JP5823211B2 (ja) | 2011-09-01 | 2015-11-25 | 株式会社小糸製作所 | 車両用前照灯装置 |
CN105351839B (zh) | 2011-09-01 | 2018-02-27 | 株式会社小糸制作所 | 车辆用前照灯装置 |
DE102013113807A1 (de) * | 2013-12-11 | 2015-06-11 | Hella Kgaa Hueck & Co. | Beleuchtungseinrichtung für ein Kraftfahrzeug |
DE102014113700A1 (de) * | 2014-09-23 | 2016-03-24 | Hella Kgaa Hueck & Co. | Scheinwerfer für Fahrzeuge |
DE102015221240A1 (de) * | 2015-10-30 | 2017-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Beleuchtungsvorrichtung, insbesondere für ein Kraftfahrzeug |
JP6952541B2 (ja) * | 2017-09-11 | 2021-10-20 | スタンレー電気株式会社 | 車両用前照灯 |
-
2017
- 2017-12-21 JP JP2017245336A patent/JP6959852B2/ja active Active
-
2018
- 2018-12-20 EP EP18214690.2A patent/EP3501896B1/en active Active
- 2018-12-20 CN CN201811577708.8A patent/CN110006002B/zh active Active
- 2018-12-21 US US16/231,350 patent/US10738958B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2019114358A (ja) | 2019-07-11 |
EP3501896B1 (en) | 2021-05-19 |
CN110006002B (zh) | 2022-06-24 |
EP3501896A1 (en) | 2019-06-26 |
CN110006002A (zh) | 2019-07-12 |
US10738958B2 (en) | 2020-08-11 |
US20190195457A1 (en) | 2019-06-27 |
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