WO2018120080A1 - 一种弧幕显示光学系统 - Google Patents

一种弧幕显示光学系统 Download PDF

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Publication number
WO2018120080A1
WO2018120080A1 PCT/CN2016/113647 CN2016113647W WO2018120080A1 WO 2018120080 A1 WO2018120080 A1 WO 2018120080A1 CN 2016113647 W CN2016113647 W CN 2016113647W WO 2018120080 A1 WO2018120080 A1 WO 2018120080A1
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Prior art keywords
optical element
convex surface
optical system
facing
surface facing
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PCT/CN2016/113647
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English (en)
French (fr)
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施宏艳
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深圳市柔宇科技有限公司
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Priority to PCT/CN2016/113647 priority Critical patent/WO2018120080A1/zh
Priority to KR1020197022073A priority patent/KR20190095483A/ko
Priority to JP2019532116A priority patent/JP2020513594A/ja
Priority to EP16925918.1A priority patent/EP3564725A1/en
Priority to CN201680044939.5A priority patent/CN108064349A/zh
Priority to US16/473,146 priority patent/US20200103616A1/en
Publication of WO2018120080A1 publication Critical patent/WO2018120080A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/08—Anamorphotic objectives
    • 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 -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • 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

Definitions

  • the present invention relates to the field of optical systems, and more particularly to an arc screen display optical system.
  • Embodiments of the present invention provide an optical system capable of exhibiting an arc curtain display effect.
  • an embodiment of the present invention provides an arc screen display optical system, including:
  • the optical element comprising a lens and/or a lens group
  • the first optical element, the second optical element, the third optical element, the fourth optical element, and the fifth optical element are sequentially disposed from an object side along a linear optical axis;
  • the arc screen display optical system satisfies the condition: -10% ⁇ d ⁇ -5%, and the d is the maximum distortion of the edge.
  • an embodiment of the present invention provides a head mounted display device, including the arc screen display optical system of the first aspect.
  • the arc screen display optical system of the solution provided by the invention reversely processes the actual object image relationship at the time of design, that is, the object in the design is an image in practical application, and the image in the design is an object in practical application.
  • the maximum field of view at the edge of the whole system is reserved for negative distortion (barrel shape), so in actual use, a picture with a certain orthodontic (cushion shape) will be presented, thereby achieving the surface imaging effect, that is, reaching the arc screen. display effect.
  • FIG. 1 is a schematic structural diagram of an arc screen display optical system according to an embodiment of the present invention.
  • Figure 2 is a dot-column diagram of the optical system shown in Figure 1;
  • Figure 3 is a diagram showing an optical transfer function of the optical system shown in Figure 1;
  • Figure 4 is a field curvature and distortion diagram of the optical system shown in Figure 1;
  • FIG. 5 is a schematic structural diagram of an arc screen display optical system according to another embodiment of the present invention.
  • Figure 6 is a dot-column diagram of the optical system shown in Figure 5;
  • Figure 7 is a diagram showing an optical transfer function of the optical system shown in Figure 5;
  • Figure 8 is a field curvature and distortion diagram of the optical system shown in Figure 5.
  • FIG. 1 is a schematic structural diagram of an arc screen display optical system according to an embodiment of the present invention.
  • the optical system shown in Fig. 1 was designed with a focal length of 19 nm, an entrance pupil diameter of 4 nm, and an angle of view of 62°.
  • the optical system includes a first optical element 10, a second optical element 20, a third optical element 30, a fourth optical element 40, and a fifth optical element 50.
  • the first optical element 10, the second optical element 20, the third optical element 30, the fourth optical element 40, and the fifth optical element 50 are all lens.
  • the first optical element 10 includes a first convex surface F1 facing the object side and a first concave surface F2 facing the image side
  • the second optical element 20 includes a second concave surface F3 facing the object side and a second convex surface facing the image side
  • F4 the third optical element 30 includes a third convex surface F5 facing the object side and a fourth convex surface F6 facing the image side
  • the fourth optical element 40 includes a fifth convex surface F7 facing the object side and a surface facing the image side.
  • the third concave surface F8 includes a sixth convex surface F9 facing the object side and a seventh convex surface F10 facing the image side.
  • the first optical element 10, the second optical element 20, the third optical element 30, the fourth optical element 40, and the fifth optical element 50 are sequentially disposed from the object side along the optical axis of the line.
  • F0 shown in FIG. 1 is an object surface
  • F11 is an image surface.
  • the first convex surface F1, the first concave surface F2, the second concave surface F3, the second convex surface F4, and the third convex surface F5 are all spherical surfaces
  • the fourth convex surface F6, the fifth convex surface F7, the third concave surface F8, and the sixth convex surface F9 are
  • the seventh convex surface F10 is aspherical.
  • the first optical element 10, the third optical element 30, and the fourth optical element 40 are (BaK1) germanium glass materials, and the second optical element 20 and the fifth optical element 50 are (ZBaF13) heavy flint glass materials.
  • Other parameters of the structure shown in Figure 1 are shown in Tables 1 and 2.
  • 2 is a dot-column diagram of the optical system shown in FIG. 1
  • FIG. 3 is an optical transfer function diagram of the optical system shown in FIG. 1
  • FIG. 4 is a field curvature and distortion diagram of the optical system shown in FIG.
  • FIG. 5 is a schematic structural diagram of an arc screen display optical system according to another embodiment of the present invention.
  • the optical system shown in Fig. 5 was designed at a focal length of 12 nm, an entrance pupil diameter of 4 nm, and an angle of view of 66°.
  • the optical system includes a first optical element 10, a second optical element 20, a third optical element 30, a fourth optical element 40, and a fifth optical element 50.
  • the first optical element 10, the second optical element 20, the third optical element 30, and the fifth optical element 50 are all lenses, and the fourth optical element 40 is a lens group.
  • the first optical element 10 includes a fifth concave surface F1 facing the object side and an eighth convex surface F2 facing the image side
  • the second optical element 20 includes a sixth concave surface F3 facing the object side and a ninth convex surface facing the image side.
  • the third optical element 30 includes a tenth convex surface F5 facing the object side and an eleventh convex surface F6 facing the image side
  • the fourth optical element 40 includes a twelfth convex surface F7 facing the object side, facing the image side a thirteenth convex surface F8, a fourteen convex surface F9 facing the object side, and a seventh concave surface F10 facing the image side
  • the fifth optical element 50 including a fifteenth convex surface F11 facing the object side and an eighth surface facing the image side Concave F12.
  • the first optical element 10, the second optical element 20, the third optical element 30, the fourth optical element 40, and the fifth optical element 50 are sequentially disposed from the object side along the optical axis of the line.
  • F0 shown in FIG. 5 is an object surface
  • F13 is an image surface.
  • the fifth concave surface F1, the eighth convex surface F2, the sixth concave surface F3, the ninth convex surface F4, the thirteenth convex surface F8, and the fourteenth convex surface F9 are all spherical surfaces, the tenth convex surface F5, the eleventh convex surface F6, and the tenth
  • the two convex surfaces F7, the seventh concave surface F10, the fifteenth convex surface F11, and the eighth concave surface F12 are all aspherical surfaces.
  • the first optical element 10, the second optical element 20, and the third optical element 30 are BaK1 materials
  • the fourth optical element 40 includes a BaK1 material, a ZBaF13 material, and a (QK3) lightly-glazed glass material
  • the fifth optical element 50 is ( BaF3) Flint glass material.
  • FIG. 5 is a dot-column diagram of the optical system shown in FIG. 5
  • FIG. 7 is an optical transfer function diagram of the optical system shown in FIG. 5
  • FIG. 8 is a field curvature and distortion diagram of the optical system shown in FIG.
  • Radius represents the radius of curvature of the surface corresponding to the surface code n
  • Thickness indicates the thickness of the lens or the interval between the lenses
  • nd indicates the refractive index at the d line
  • vd indicates the Abbe number at the d line.
  • the surface type indicates the surface type corresponding to the face code n, and has a spherical and aspherical.
  • the aspherical parameters are shown in Tables 2 and 4. Among them, K, A 2, A 4, A 6 , A 8 , A 10 , A 12 and A 14 represent aspherical coefficients.
  • the arc-screen display optical systems shown in Figures 1 and 5 all satisfy the condition: -10% ⁇ d ⁇ -5%, and d is the maximum distortion of the edge.
  • d is the maximum distortion of the edge.
  • the optical system shown in Figure 1 to achieve 18.8m*25.9m at a distance of 25m
  • the large screen effect the maximum distortion of the edge becomes -6.2%, which satisfies the above conditions.
  • a large screen effect of 17.7 m * 24.3 m was achieved at a distance of 25 m, and the maximum edge distortion was -8.3%, which satisfies the above conditions.
  • the optical systems shown in FIG. 1 and FIG. 5 all achieve the arc curtain effect, and the overall viewing effect of the arc curtain IMAX is realized.
  • the optical system diagrams shown in FIG. 1 and FIG. 5 are schematic diagrams when designing the Zmax software.
  • the arc screen display optical system of the solution provided by the present invention reversely processes the actual object image relationship at the time of design, that is, the object in the design is an image in practical application, and the image in the design is in practical application.
  • the maximum field of view at the edge of the system is reserved for negative distortion (barrel shape), so in actual use, it will present a picture with a certain orthodontic (cushion shape), thus achieving the surface imaging effect, that is, The arc screen shows the effect.
  • the embodiment of the invention further provides a head mounted display device, wherein the head mounted display device comprises the optical system shown in FIGS. 1 and 5.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

一种弧幕显示光学系统，包括：第一光学元件（10）、第二光学元件（20）、第三光学元件（30）、第四光学元件（40）和第五光学元件（50），光学元件包括透镜和/或透镜组；第一光学元件（10）、第二光学元件（20）、第三光学元件（30）、第四光学元件（40）和第五光学元件（50）从物方沿一直线光轴依次配置；弧幕显示光学系统满足条件：-10％≤d≤-5％，d为边缘最大畸变。采用弧幕显示光学系统可实现弧幕显示效果。

Description

一种弧幕显示光学系统 技术领域
本发明涉及光学系统领域，尤其涉及一种弧幕显示光学系统。
背景技术
传统弧幕影院是通过幕布材料和形状、多台投影机、多通道影片播放系统、以及曲面校正与边缘融合系统等非常复杂的系统才能完美呈现弧幕显示。用户想要观看具有弧幕效果的影片，需要用户前往影院观看。为了方便用户观看具有弧幕效果的影片，因此提供一种能够呈现弧幕显示效果的光学系统是很有必要的。
发明内容
本发明实施例提供一种能够呈现弧幕显示效果的光学系统。
第一方面，本发明实施例提供一种弧幕显示光学系统，包括：
第一光学元件、第二光学元件、第三光学元件、第四光学元件和第五光学元件，所述光学元件包括透镜和/或透镜组；
所述第一光学元件、所述第二光学元件、所述第三光学元件、所述第四光学元件和所述第五光学元件从物方沿一直线光轴依次配置；
所述弧幕显示光学系统满足条件：-10％≤d≤-5％，所述d为边缘最大畸变。
第二方面，本发明实施例提供一种头戴显示设备，包括第一方面所述的弧幕显示光学系统。
本发明提供的方案的弧幕显示光学系统，在设计时将实际的物像关系做反向处理，也就是设计中的物是实际应用中的像，设计中的像是实际应用中的物，在设计过程中，整个系统边缘最大视场预留负畸变(桶形)，那么实际使用时，会呈现出具有一定正畸变(枕形)的画面，从而达到曲面成像效果，即达到弧幕显示效果。
本发明的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一实施例提供的一种弧幕显示光学系统的结构示意图；
图2为图1所示的光学系统的点列图；
图3为图1所示的光学系统的光学传递函数图；
图4为图1所示的光学系统的场曲与畸变图；
图5为本发明另一实施例提供的一种弧幕显示光学系统的结构示意图；
图6为图5所示的光学系统的点列图；
图7为图5所示的光学系统的光学传递函数图；
图8为图5所示的光学系统的场曲与畸变图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
以下分别进行详细说明。
本发明的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。
请参见图1，图1为本发明一实施例提供的一种弧幕显示光学系统的结构示意图。图1所示的光学系统是在焦距为19nm，入瞳直径为4nm，视场角为62°时设计得到的。该光学系统包括第一光学元件10、第二光学元件20、第三光学元件30、第四光学元件40和第五光学元件50。第一光学元件10、第二光学元件20、第三光学元件30、第四光学元件40和第五光学元件50均为 透镜。所述第一光学元件10包括面向物方的第一凸面F1和面向像方的第一凹面F2，所述第二光学元件20包括面向物方的第二凹面F3和面向像方的第二凸面F4，所述第三光学元件30包括面向物方的第三凸面F5和面向像方的第四凸面F6，所述第四光学元件40包括面向物方的第五凸面F7和面向像方的第三凹面F8，所述第五光学元件50包括面向物方的第六凸面F9和面向像方的第七凸面F10。第一光学元件10、第二光学元件20、第三光学元件30、第四光学元件40和第五光学元件50从物方沿一直线光轴依次配置。另外，图1所示的F0为物面，F11为像面。
其中，第一凸面F1、第一凹面F2、第二凹面F3、第二凸面F4和第三凸面F5均为球面，第四凸面F6、第五凸面F7、第三凹面F8、第六凸面F9和第七凸面F10均为非球面。
其中，第一光学元件10、第三光学元件30和第四光学元件40为(BaK1)钡冕玻璃材料，第二光学元件20和第五光学元件50为(ZBaF13)重钡火石玻璃材料。图1所示的结构的其他参数如表1和表2所示。图2为图1所示的光学系统的点列图，图3为图1所示的光学系统的光学传递函数图，图4为图1所示的光学系统的场曲与畸变图。
表1
Figure PCTCN2016113647-appb-000001
表2
Surface K A2 A4 A6 A8 A10 A12 A14
F6 -1.1E+00 0.0E+00 5.0E-04 5.8E-06 -3.6E-08 1.3E-10 -2.5E-13 2.0E-16
F7 -5.5E+00 0.0E+00 1.0E-04 -4.1E-06 5.1E-08 -3.1E-10 9.6E-13 -1.2E-15
F8 2.0E-01 0.0E+00 3.0E-04 -4.0E-06 -4.0E-09 2.9E-10 -1.6E-12 2.6E-15
F9 -4.5E+20 0.0E+00 5.0E-04 -5.5E-06 -1.6E-08 5.5E-10 -3.0E-12 5.3E-15
F10 1.0E-01 0.0E+00 1.0E-03 -2.4E-05 2.6E-07 -1.5E-09 4.4E-12 -5.1E-15
请参见图5，图5为本发明另一实施例提供的一种弧幕显示光学系统的结构示意图。图5所示的光学系统是在焦距为12nm，入瞳直径为4nm，视场角为66°时设计得到的。该光学系统包括第一光学元件10、第二光学元件20、第三光学元件30、第四光学元件40和第五光学元件50。第一光学元件10、第二光学元件20、第三光学元件30和第五光学元件50均为透镜，第四光学元件40为透镜组。所述第一光学元件10包括面向物方的第五凹面F1和面向像方的第八凸面F2，所述第二光学元件20包括面向物方的第六凹面F3和面向像方的第九凸面F4，所述第三光学元件30包括面向物方的第十凸面F5和面向像方的第十一凸面F6，所述第四光学元件40包括面向物方的第十二凸面F7、面向像方的第十三凸面F8、面向物方的第十四凸面F9和面向像方的第七凹面F10，所述第五光学元件50包括面向物方的第十五凸面F11和面向像方的第八凹面F12。第一光学元件10、第二光学元件20、第三光学元件30、第四光学元件40和第五光学元件50从物方沿一直线光轴依次配置。另外，图5所示的F0为物面，F13为像面。
其中，第五凹面F1、第八凸面F2、第六凹面F3、第九凸面F4、第十三凸面F8和第十四凸面F9均为球面，第十凸面F5、第十一凸面F6、第十二凸面F7、第七凹面F10、第十五凸面F11和第八凹面F12均为非球面。
其中，第一光学元件10、第二光学元件20和第三光学元件30为BaK1材料，第四光学元件40包括BaK1材料、ZBaF13材料和(QK3)轻冕玻璃材料，第五光学元件50为(BaF3)钡火石玻璃材料。
其中，图5所示的结构的其他参数如表3和表4所示。图6为图5所示的光学系统的点列图，图7为图5所示的光学系统的光学传递函数图，图8为图5所示的光学系统的场曲与畸变图。
表3
Figure PCTCN2016113647-appb-000002
表4
Surface K A2 A4 A6 A8 A10
F5 -3.1E+00 0.0E+00 3.0E-05 -1.6E-07 6.4E-10 -8.0E-13
F6 8.8E+00 0.0E+00 -9.7E-05 6.7E-07 -1.5E-09 1.1E-12
F7 1.8E+00   1.0E-04 8.8E-07 2.0E-09 1.3E-12
F10 1.1E+00 0.0E+00 3.0E-05 2.7E-06 -3.2E-08 1.2E-10
F11 -1.6E+37   5.0E-04 -5.1E-06 1.6E-08 -8.6E-12
F12 -1.3E+39 0.0E+00 1.0E-03 -1.3E-05 6.5E-08 -1.1E-10
在表1和表3中，Raduis表示表面编码n对应的表面的曲率半径，Thickness表示透镜的厚度或透镜之间的间隔，nd表示在d线的折射率，vd表示在d线的阿贝数。surface type表示面编码n对应的表面类型，有球面(spheric)和非球面(aspheric)。表2和表4中示出了非球面各个参数。其中，K、A 2、A 4、A 6、A 8、A 10、A 12和A 14表示非球面系数。
图1和图5所示的弧幕显示光学系统均要满足条件：-10％≤d≤-5％，d为边缘最大畸变。采用图1所示的光学系统在25m距离处实现18.8m*25.9m 的大屏幕效果，边缘最大畸变为-6.2％，满足上述条件。采用图5所示的光学系统在25m距离处实现17.7m*24.3m的大屏幕效果，边缘最大畸变为-8.3％，满足上述条件。可见，图1和图5所示的光学系统均达到弧幕效果，整体实现弧幕IMAX的观影效果。需要说明的是，图1和图5所示的光学系统示意图是在Zmax软件设计时的示意图。
可见，本发明提供的方案的弧幕显示光学系统，在设计时将实际的物像关系做反向处理，也就是设计中的物是实际应用中的像，设计中的像是实际应用中的物，在设计过程中，整个系统边缘最大视场预留负畸变(桶形)，那么实际使用时，会呈现出具有一定正畸变(枕形)的画面，从而达到曲面成像效果，即达到弧幕显示效果。
本发明实施例还提供一种头戴显示设备，其中，该头戴显示设备包括图1和图5所示的光学系统。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

  1. 一种弧幕显示光学系统，其特征在于，包括：
    第一光学元件、第二光学元件、第三光学元件、第四光学元件和第五光学元件，所述光学元件包括透镜和/或透镜组；
    所述第一光学元件、所述第二光学元件、所述第三光学元件、所述第四光学元件和所述第五光学元件从物方沿一直线光轴依次配置；
    所述弧幕显示光学系统满足条件：-10％≤d≤-5％，所述d为边缘最大畸变。
  2. 根据权利要求1所述的弧幕显示光学系统，其特征在于，当所述弧幕显示光学系统的焦距为19nm，入瞳直径为4nm，视场角为62°时，所述第一光学元件、所述第二光学元件、所述第三光学元件、所述第四光学元件和所述第五光学元件均为透镜。
  3. 根据权利要求2所述的弧幕显示光学系统，其特征在于，所述第一光学元件包括面向物方的第一凸面和面向像方的第一凹面，所述第二光学元件包括面向物方的第二凹面和面向像方的第二凸面，所述第三光学元件包括面向物方的第三凸面和面向像方的第四凸面，所述第四光学元件包括面向物方的第五凸面和面向像方的第三凹面，所述第五光学元件包括面向物方的第六凸面和面向像方的第七凸面。
  4. 根据权利要求3所述的弧幕显示光学系统，其特征在于，所述第一凸面、所述第一凹面、所述第二凹面、所述第二凸面和所述第三凸面均为球面，所述第四凸面、所述第五凸面、所述第三凹面、所述第六凸面和所述第七凸面均为非球面。
  5. 根据权利要求2至4中任意一项所述的弧幕显示光学系统，其特征在于，所述第一光学元件、所述第三光学元件和所述第四光学元件为(BaK1) 钡冕玻璃材料，所述第二光学元件和所述第五光学元件为(ZBaF13)重钡火石玻璃材料。
  6. 根据权利要求1所述的弧幕显示光学系统，其特征在于，当所述弧幕显示光学系统的焦距为12nm，入瞳直径为4nm，视场角为66°时，所述第一光学元件、所述第二光学元件、所述第三光学元件、所述第五光学元件均为透镜，所述第四光学元件为透镜组。
  7. 根据权利要求6所述的弧幕显示光学系统，其特征在于，所述第一光学元件包括面向物方的第五凹面和面向像方的第八凸面，所述第二光学元件包括面向物方的第六凹面和面向像方的第九凸面，所述第三光学元件包括面向物方的第十凸面和面向像方的第十一凸面，所述第四光学元件包括面向物方的第十二凸面、面向像方的第十三凸面、面向物方的第十四凸面和面向像方的第七凹面，所述第五光学元件包括面向物方的第十五凸面和面向像方的第八凹面。
  8. 根据权利要求6所述的弧幕显示光学系统，其特征在于，所述第五凹面、所述第八凸面、所述第六凹面、所述第九凸面、所述第十三凸面和所述第十四凸面均为球面，所述第十凸面、所述第十一凸面、所述第十二凸面、所述第七凹面、所述第十五凸面和所述第八凹面均为非球面。
  9. 根据权利要求6至8中任意一项所述的弧幕显示光学系统，其特征在于，所述第一光学元件、所述第二光学元件和所述第三光学元件为BaK1，所述第四光学元件包括BaK1材料、ZBaF13材料和(QK3)轻冕玻璃材料，所述第五光学元件为(BaF3)钡火石玻璃。
  10. 一种头戴显示设备，其特征在于，包括权利要求1至权利要求9中任意一项所述的弧幕显示光学系统。
PCT/CN2016/113647 2016-12-30 2016-12-30 一种弧幕显示光学系统 WO2018120080A1 (zh)

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