WO2020168817A1 - 光学系统以及近眼显示装置 - Google Patents
光学系统以及近眼显示装置 Download PDFInfo
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- WO2020168817A1 WO2020168817A1 PCT/CN2019/127729 CN2019127729W WO2020168817A1 WO 2020168817 A1 WO2020168817 A1 WO 2020168817A1 CN 2019127729 W CN2019127729 W CN 2019127729W WO 2020168817 A1 WO2020168817 A1 WO 2020168817A1
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- 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
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- 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
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
- G02B9/14—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - +
- G02B9/16—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + all the components being simple
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
Description
Claims (16)
- 一种光学系统,包括:光波导;以及目镜系统,位于所述光波导的入光侧,且所述目镜系统的出光侧与所述光波导的入光侧相对以使从所述目镜系统出射的光入射到所述光波导,其中,所述目镜系统包括透镜组,所述透镜组包括沿平行于其光轴的方向依次设置的第一透镜、第二透镜和第三透镜,所述第一透镜远离所述第二透镜的一侧为所述目镜系统的出光侧,所述第一透镜和所述第三透镜具有正光焦度,所述第二透镜具有负光焦度。
- 根据权利要求1所述的光学系统,其中,所述第一透镜包括相对的第一表面和第二表面,所述第二透镜包括相对的第三表面和第四表面,所述第三透镜包括相对的第五表面和第六表面,所述第一表面至所述第六表面沿平行于所述光轴的方向依次排列,所述第一表面、所述第二表面、所述第三表面、所述第四表面、所述第五表面以及所述第六表面的曲率半径的范围分别为5~50mm,-50~0mm,0~50mm,2~20mm,5~20mm以及-5~-20mm。
- 根据权利要求2所述的光学系统,其中,所述第一表面与所述光轴交点距所述第六表面与所述光轴交点的距离为10~30mm。
- 根据权利要求3所述的光学系统,其中,所述第一透镜、所述第二透镜以及所述第三透镜的厚度范围均为2~20mm。
- 根据权利要求1-4任一项所述的光学系统,其中,所述第一透镜的光焦度为0.01~0.2,所述第二透镜的光焦度为-0.01~-0.2,以及所述第三透镜的光焦度为0.05~0.3。
- 根据权利要求1-5任一项所述的光学系统,其中,所述目镜系统的有效焦距为10~25mm。
- 根据权利要求1-6任一项所述的光学系统,其中,所述目镜系统的调制函数曲线中的空间频率为108线对/毫米位置处的对比度不小于0.05。
- 根据权利要求1-7任一项所述的光学系统,其中,所述透镜组在垂直于所述光轴的平面上的正投影沿第一方向具有最大尺寸;沿所述第一方向,每个透镜的口径为10~35mm,沿垂直于所述第一方向的第二方向,每个透镜的口径为5~15mm,所述第一方向和所述第二方向均垂 直于所述光轴。
- 根据权利要求8所述的光学系统,其中,沿所述第一方向和所述第二方向的最大视场中,所述目镜系统的最大场曲不大于0.2mm。
- 根据权利要求8或9所述的光学系统,其中,沿所述第一方向和所述第二方向的最大视场中,所述目镜系统的最大畸变小于4%。
- 根据权利要求9所述的光学系统,其中,沿所述第一方向的最大视场中,所述目镜系统的最大场曲不大于0.1mm。
- 根据权利要求8-11任一项所述的光学系统,其中,沿所述第一方向,所述透镜组的最大视场为8.66°;沿所述第二方向,所述透镜组的最大视场为15.7°。
- 根据权利要求8-12任一项所述的光学系统,其中,所述光波导包括主平面,所述光波导的入光侧和出光侧均位于所述主平面的同侧,且所述光波导包括沿所述第二方向排列的反射阵列,被配置为将从所述入光侧入射到所述光波导内的光反射至所述出光侧,并使所述光波导出射的光束沿所述第二方向的尺寸大于所述目镜系统出射的光束沿所述第二方向的尺寸。
- 根据权利要求1-13任一项所述的光学系统,其中,所述第一透镜的材料与所述第二透镜的材料不同。
- 一种近眼显示装置,包括显示屏以及权利要求1-14任一项所述的光学系统,所述显示屏位于所述目镜系统入光侧的焦平面。
- 根据权利要求15所述的显示装置,其中,所述显示屏显示的图像分辨率不小于5000PPI。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/954,937 US11536962B2 (en) | 2019-02-22 | 2019-12-24 | Optical system and near-eye display device |
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CN201910133081.5 | 2019-02-22 | ||
CN201910133081.5A CN111610631B (zh) | 2019-02-22 | 2019-02-22 | 光学系统以及近眼显示装置 |
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US (1) | US11536962B2 (zh) |
CN (1) | CN111610631B (zh) |
WO (1) | WO2020168817A1 (zh) |
Families Citing this family (4)
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CN112147758B (zh) * | 2019-06-26 | 2023-07-28 | 中强光电股份有限公司 | 光学镜头及头戴式显示装置 |
CN112987305B (zh) * | 2021-02-24 | 2022-10-18 | 歌尔股份有限公司 | Ar投影组件以及ar设备 |
JP2023043250A (ja) * | 2021-09-16 | 2023-03-29 | 株式会社リコー | 伝搬光学系、虚像表示装置及びヘッドマウントディスプレイ |
CN114326123B (zh) * | 2021-12-27 | 2023-03-21 | 北京灵犀微光科技有限公司 | 一种近眼显示装置 |
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- 2019-02-22 CN CN201910133081.5A patent/CN111610631B/zh active Active
- 2019-12-24 US US16/954,937 patent/US11536962B2/en active Active
- 2019-12-24 WO PCT/CN2019/127729 patent/WO2020168817A1/zh active Application Filing
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CN104216120A (zh) * | 2014-08-29 | 2014-12-17 | 中国科学院长春光学精密机械与物理研究所 | 半透膜阵列平板波导式头戴显示器光学系统 |
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CN111610631A (zh) | 2020-09-01 |
CN111610631B (zh) | 2021-08-17 |
US20210239981A1 (en) | 2021-08-05 |
US11536962B2 (en) | 2022-12-27 |
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