WO2018209715A1 - 一种基于pbs分光器的车灯系统 - Google Patents

一种基于pbs分光器的车灯系统 Download PDF

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WO2018209715A1
WO2018209715A1 PCT/CN2017/085301 CN2017085301W WO2018209715A1 WO 2018209715 A1 WO2018209715 A1 WO 2018209715A1 CN 2017085301 W CN2017085301 W CN 2017085301W WO 2018209715 A1 WO2018209715 A1 WO 2018209715A1
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Prior art keywords
pbs
beam splitter
pbs beam
lens group
contact surface
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PCT/CN2017/085301
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English (en)
French (fr)
Inventor
张洁
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华域视觉科技(上海)有限公司
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Priority to DE112017004687.4T priority Critical patent/DE112017004687B4/de
Priority to US16/346,066 priority patent/US10704754B2/en
Publication of WO2018209715A1 publication Critical patent/WO2018209715A1/zh

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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
    • F21S41/12—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
    • F21S41/20—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • 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
    • 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
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • 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
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the optical path control unit is a lens or a mirror.
  • the collimating lens group is composed of a coaxially disposed negative meniscus lens and a flat convex lens, wherein the negative meniscus lens is close to the light source, and the plano-convex lens is close to the PBS beam splitter.
  • the LCOS control chip when the liquid crystal display is in a bright state, changes the S wave reflected by the contact surface of the PBS beam splitter into a P wave that is transmitted through the contact surface of the PBS beam splitter and enters the image lens group.
  • the beneficial effects of the present invention are: by adding an optical path control unit, the P wave portion transmitted from the contact surface of the PBS beam splitter is used as a part of low beam illumination or low beam illumination to improve the use of the light source of the light source.
  • Figure 1 is a schematic diagram of an existing LCOS projection system.
  • the collimator lens group 2 and the PBS beam splitter 3 are sequentially arranged along the light emission direction of the light source 1, and the contact surface of the PBS beam splitter 3 is at an angle of 45 degrees with the incident light collimated by the collimator lens group 2.
  • the collimating lens group 2 is specifically composed of a negative meniscus lens and a flat convex lens disposed coaxially, wherein the negative meniscus lens is close to the light source 1, the plano-convex lens is close to the PBS beam splitter 3, and the direct lens group 2 is used for the light emitted by the light source 1. Perform collimation calibration to near parallel light.
  • the LCOS control chip 4 is disposed on the optical path of the S wave reflected by the contact surface of the PBS beam splitter 3.
  • the S wave reflected by the contact surface of the PBS beam splitter 3 is changed to P wave transmitted through the contact surface of the PBS beam splitter 3, and then enters the image lens group 5, that is, LCOS.
  • the control chip 4 is used to modulate the vibration direction of the S wave, and rotate the S wave vibration direction by 90 degrees to pass through the contact surface of the PBS beam splitter for the intelligent high beam illumination function.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

一种基于PBS分光器的车灯系统，包括光源（1）、PBS分光器（3）、准直透镜组（2）、成像透镜组（5）、LCOS控制芯片（4）和光路控制单元（6），准直透镜组（2）和PBS分光器（3）依次沿光源（1）的光线发射方向排列设置，LCOS控制芯片（4）设置于经PBS分光器（3）的接触面反射出的S波的光路上，成像透镜组（5）设置于经LCOS控制芯片（4）调制后的S波透过PBS分光器（3）的接触面后的出射光路上，光路控制单元（6）设置于经PBS分光器（3）的接触面透射出的P波的光路上。通过光路控制单元（6）将投射出PBS分光器（3）的P波部分用作近光照明或近光照明的一部分，可以提高对光源光能的利用率。

Description

一种基于PBS分光器的车灯系统 技术领域
本发明涉及车灯领域，特别涉及一种基于PBS分光器的车灯系统。
背景技术
如图1所示，为目前LCOS投影系统的示意图。光源1发出的光线经过准直透镜组2进行准直校准成接近平行光，再射入PBS分光器3，在PBS分光器3的接触面处，S波由于无法通过接触面，被反射出PBS分光器3，LCOS控制芯片4设置于S波出射面，通过LCOS控制芯片4的调制来实现对图像的控制，被调制的S波由于振动方向的改变，再次通过PBS接触面时可以直接透过，并通过透镜组5后投射到屏幕；而直接透射过PBS分光器3的P波部分无法被利用，一般通过黑色材质吸收以避免影响成像质量，造成光能损失。
发明内容
本发明的目的在于针对上述问题，提供了一种基于PBS分光器的车灯系统，大大提高了对光源光能的运用。
本发明的目的是这样实现的：
一种基于PBS分光器的车灯系统，其特征在于，包括光源、PBS分光器、准直透镜组、成像透镜组、LCOS控制芯片和光路控制单元，所述准直透镜组和PBS分光器依次沿光源的光线发射方向排列设置，所述LCOS控制芯片设置于经PBS分光器的接触面反射出的S波的光路上，所述成像透镜组设置于经LCOS控制芯片调制后的S波透过PBS分光器的接触面后的出射光路上，所述光路控制单元设置于经PBS分光器的接触面透射出的P波的光路上。
本发明通过LCOS控制芯片对S波的调制，形成可以被动态控制的亮灭的光路，用作智能远光照明功能(专利2012103259803提供了一种机械式智能远光的解决方案，本发明通过LCOS控制芯片，实现电子控制式智能远光)。
其中，所述光路控制单元为透镜或反射镜。
其中，所述光路控制单元为包括反射镜、遮光板和放大镜的车灯组件。
其中，所述准直透镜组由同轴设置的负弯月透镜和平凸透镜组成，其中负弯月透镜靠近光源，平凸透镜靠近PBS分光器。
其中，所述成像透镜组由同轴设置的凹透镜和平凸透镜组成，其中凹透镜位于靠近PBS分光器的一侧，平凸透镜位于远离PBS分光器的一侧。
其中，所述PBS分光器的接触面与经准直透镜组准直校准后的入射光成 45度角。
其中，所述LCOS控制芯片在其液晶显示为亮态时，将经PBS分光器的接触面反射出的S波改变成P波透射出PBS分光器的接触面后进入像透镜组。
本发明的有益效果为：通过增加光路控制单元，将自PBS分光器的接触面透射出的P波部分用作近光照明或近光照明的一部分，以提高对光源光能的运用。
附图说明
图1为现有LCOS投影系统示意图。
图2为本发明的近光示意图。
图3为本发明的近光及远光示意图。
其中：1-光源，2-准直透镜组，3-PBS分光器，4-LCOS控制芯片，5-成像透镜组，6-光路控制单元。
具体实施方式
下面结合具体实施例和附图，进一步阐述本发明。
如图2和3所示，一种基于PBS分光器的车灯系统，该车灯系统为在现有LCOS投影系统上改造而成，具体包括光源1、PBS分光器3、准直透镜组 2、成像透镜组5、LCOS控制芯片4和光路控制单元6。
准直透镜组2和PBS分光器3依次沿光源1的光线发射方向排列设置，PBS分光器3的接触面与经准直透镜组2准直校准后的入射光成45度角。所述准直透镜组2具体由同轴设置的负弯月透镜和平凸透镜组成，其中负弯月透镜靠近光源1，平凸透镜靠近PBS分光器3，直透镜组2用于将光源1发出的光线进行准直校准成接近平行光。
LCOS控制芯片4设置于经PBS分光器3的接触面反射出的S波的光路上。当LCOS控制芯片4在其液晶显示为亮态时，将经PBS分光器3的接触面反射出的S波改变成P波透射出PBS分光器3的接触面后进入像透镜组5，即LCOS控制芯片4用于调制S波的振动方向，使S波振动方向旋转90度，从而透过PBS分光器的接触面，用于智能远光照明功能。
成像透镜组5设置于经LCOS控制芯片4调制后的S波透过PBS分光器3的接触面后的出射光路上，S波经成像透镜组5后投射到屏幕，实现远光照明。所述成像透镜组5具体由同轴设置的凹透镜和平凸透镜组成，其中凹透镜位于靠近PBS分光器3的一侧，平凸透镜位于远离PBS分光器3的一侧。
光路控制单元6设置于经PBS分光器3的接触面透射出的P波的光路上，具体地，光路控制单元6可以是透镜或反射镜，也可以是包括反射镜、遮光板和放大镜的车灯组件，用于将无法控制的P波作为常亮的近光照明或近光 照明的一部分使用，大大提高对光源光能的运用。
特别声明，上述实施例中所示各部的具体形状和制造的工艺流程，仅为本发明所示具体化，且为行之有效之一例。这些并不能用于限定解释本发明的技术范围。

Claims (7)

  1. 一种基于PBS分光器的车灯系统，其特征在于，包括光源(1)、PBS分光器(3)、准直透镜组(2)、成像透镜组(5)、LCOS控制芯片(4)和光路控制单元(6)，所述准直透镜组(2)和PBS分光器(3)依次沿光源(1)的光线发射方向排列设置，所述LCOS控制芯片(4)设置于经PBS分光器(3)的接触面反射出的S波的光路上，所述成像透镜组(5)设置于经LCOS控制芯片(4)调制后的S波透过PBS分光器(3)的接触面后的出射光路上，所述光路控制单元(6)设置于经PBS分光器(3)的接触面透射出的P波的光路上。
  2. 根据权利要求1所述的一种基于PBS分光器的车灯系统，其特征在于，所述光路控制单元(6)为透镜或反射镜。
  3. 根据权利要求1所述的一种基于PBS分光器的车灯系统，其特征在于，所述光路控制单元(6)为包括反射镜、遮光板和放大镜的车灯组件。
  4. 根据权利要求1所述的一种基于PBS分光器的车灯系统，其特征在于，所述准直透镜组(2)由同轴设置的负弯月透镜和平凸透镜组成，其中负弯月透镜靠近光源(1)，平凸透镜靠近PBS分光器(3)。
  5. 根据权利要求1所述的一种基于PBS分光器的车灯系统，其特征在于，所述成像透镜组(5)由同轴设置的凹透镜和平凸透镜组成，其中凹透镜位于靠近PBS分光器(3)的一侧，平凸透镜位于远离PBS分光器(3)的一侧。
  6. 根据权利要求1所述的一种基于PBS分光器的车灯系统，其特征在于，所述PBS分光器(3)的接触面与经准直透镜组(2)准直校准后的入射光成45度角。
  7. 根据权利要求1所述的一种基于PBS分光器的车灯系统，其特征在于，所述LCOS控制芯片(4)在其液晶显示为亮态时，将经PBS分光器(3)的接触面反射出的S波改变成P波透射出PBS分光器(3)的接触面后进入像透镜组(5)。
PCT/CN2017/085301 2017-05-14 2017-05-22 一种基于pbs分光器的车灯系统 WO2018209715A1 (zh)

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DE112017004687.4T DE112017004687B4 (de) 2017-05-14 2017-05-22 Auf einem PBS-Strahlteiler basiertes Fahrzeugleuchtensystem
US16/346,066 US10704754B2 (en) 2017-05-14 2017-05-22 Vehicle lamp system based on PBS (polarization beam splitter)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6901335B2 (ja) * 2017-07-14 2021-07-14 株式会社小糸製作所 車両用前照灯
CN107436510B (zh) * 2017-09-19 2023-12-26 歌尔光学科技有限公司 Lcos照明装置
DE102018101426A1 (de) * 2018-01-23 2019-07-25 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Kraftfahrzeug, insbesondere Scheinwerfer
CN109838753B (zh) * 2018-07-13 2023-11-24 华域视觉科技(上海)有限公司 一种基于pbs分光器的自适应远光功能调节方法及其智能车灯模组
WO2020010936A1 (zh) * 2018-07-13 2020-01-16 华域视觉科技(上海)有限公司 一种基于pbs分光器的自适应远光功能调节方法及其智能车灯模组
CN109827137A (zh) * 2018-08-16 2019-05-31 华域视觉科技(上海)有限公司 一种激光大灯及其照明系统、激光安全防护方法
CN110260257A (zh) 2019-07-11 2019-09-20 华域视觉科技(上海)有限公司 一种基于pbs分光器的前照灯单元

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276479A (zh) * 2014-06-03 2016-01-27 中强光电股份有限公司 车用照明装置
CN105605507A (zh) * 2014-11-13 2016-05-25 Lg电子株式会社 前灯
US20160169469A1 (en) * 2014-12-11 2016-06-16 Stanley Electric Co., Ltd. Vehicle headlamp unit and vehicle headlamp system
JP2016184114A (ja) * 2015-03-26 2016-10-20 セイコーエプソン株式会社 照明装置及びプロジェクター
CN106195671A (zh) * 2016-09-03 2016-12-07 超视界激光科技（苏州）有限公司 激光模组

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003297116A (ja) * 2002-04-05 2003-10-17 Honda Motor Co Ltd 投光装置
WO2008027692A2 (en) * 2006-08-02 2008-03-06 Abu-Ageel Nayef M Led-based illumination system
CN101923272A (zh) * 2009-06-12 2010-12-22 红蝶科技(深圳)有限公司 一种基于三色光源的微型投影光学引擎
CN102853379B (zh) 2012-06-18 2014-04-02 上海小糸车灯有限公司 一种自适应调光机构
WO2015054797A1 (en) * 2013-10-20 2015-04-23 Mtt Innovation Incorporated Light field projectors and methods
US10757382B2 (en) * 2014-12-18 2020-08-25 Nec Corporation Projection apparatus and interface apparatus
DE102016102991A1 (de) 2016-02-19 2017-08-24 Automotive Lighting Reutlingen Gmbh Kraftfahrzeug-Scheinwerfer mit einem Flüssigkristalldisplay
CN206771182U (zh) * 2017-05-14 2017-12-19 上海小糸车灯有限公司 一种基于pbs分光器的车灯系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276479A (zh) * 2014-06-03 2016-01-27 中强光电股份有限公司 车用照明装置
CN105605507A (zh) * 2014-11-13 2016-05-25 Lg电子株式会社 前灯
US20160169469A1 (en) * 2014-12-11 2016-06-16 Stanley Electric Co., Ltd. Vehicle headlamp unit and vehicle headlamp system
JP2016184114A (ja) * 2015-03-26 2016-10-20 セイコーエプソン株式会社 照明装置及びプロジェクター
CN106195671A (zh) * 2016-09-03 2016-12-07 超视界激光科技（苏州）有限公司 激光模组

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