WO2021109957A1 - 光学组件及电子设备 - Google Patents

光学组件及电子设备 Download PDF

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Publication number
WO2021109957A1
WO2021109957A1 PCT/CN2020/132632 CN2020132632W WO2021109957A1 WO 2021109957 A1 WO2021109957 A1 WO 2021109957A1 CN 2020132632 W CN2020132632 W CN 2020132632W WO 2021109957 A1 WO2021109957 A1 WO 2021109957A1
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Prior art keywords
image
optical
image display
prism
path processing
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PCT/CN2020/132632
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English (en)
French (fr)
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王友飞
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维沃移动通信有限公司
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Publication of WO2021109957A1 publication Critical patent/WO2021109957A1/zh

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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
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted 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
    • G02B2027/0178—Eyeglass type

Definitions

  • the present invention relates to the field of communication technology, in particular to an optical assembly and electronic equipment.
  • each device in the optical module of electronic equipment is relatively fixed.
  • One optical machine is responsible for the imaging of one lens, such as augmented reality (AR) glasses, top-projection AR glasses, and two sets of optical machines are arranged horizontally on the lens.
  • AR augmented reality
  • top-projection AR glasses two sets of optical machines are arranged horizontally on the lens.
  • two prisms respectively lead light into the lenses vertically
  • side-projection AR glasses two sets of optical machines are placed on both sides of the glasses, and the images are directly projected into the two lenses. Since each lens needs a corresponding optical machine to image, the power consumption of the entire optical module is too high, the heat builds up quickly, and the motherboard is susceptible to interference from the thermal effect, which affects the operating performance of the host.
  • the present invention provides an optical component and electronic equipment to solve the problem that the existing optical module generates serious heat and affects the running performance of the host.
  • the present invention is implemented as follows:
  • an optical assembly including:
  • At least two image display elements arranged on the light exit side of the optical machine, the at least two image display elements including: a first image display element and a second image display element;
  • An optical path processing element arranged between the light exit of the optical engine and the image display element, the optical path processing element rotating at a preset speed;
  • the optical path processing element includes a first projection state and a second projection state
  • the optical engine When the optical path processing element is rotated to the first projection state, the optical engine sends a first image, and the first image is projected onto the first image display element via the optical path processing element;
  • the optical engine When the optical path processing element is rotated to the second projection state, the optical engine sends a second image, and the second image is projected onto the second image display element via the optical path processing element.
  • an embodiment of the present invention also provides an electronic device, which includes the above-mentioned optical component.
  • the optical engine corresponds to at least two image display elements, and the image generated by the optical engine is alternately projected on the imaging planes of the at least two image display elements through the rotation of the optical path processing element.
  • At least two image display components share an optical machine, which can save the cost of at least one set of optical components, reduce the weight of the equipment composed of optical components, greatly reduce the power consumption of the product, and solve the problems of serious heat generation and difficult heat dissipation of optical components. Improve the performance of the host.
  • FIG. 1 shows a schematic diagram of the structure of an optical component of an embodiment of the present invention
  • FIG. 2 shows one of the structural schematic diagrams when the optical path processing element of the embodiment of the present invention is a first prism
  • FIG. 3 shows the second structural diagram of the embodiment of the present invention when the optical path processing element is a first prism
  • Figure 4 shows a schematic diagram of the reflection and refraction process of the image in the first prism according to the embodiment of the present invention:
  • FIG. 5 shows one of the structural schematic diagrams when the light path processing element of the embodiment of the present invention is a reflector
  • Fig. 6 shows the second structural diagram of the embodiment of the present invention when the optical path processing element is a reflector.
  • an embodiment of the present invention provides an optical assembly, including:
  • Optical machine 1 at least two image display elements 2 arranged on the side of the light exit of said optical machine 1, said at least two image display elements 2 including: a first image display element 21 and a second image display element 22;
  • the optical path processing element 3 can change the angle of incident light to accurately project it onto the imaging plane of the image display element 2.
  • image display elements 2 There are at least two image display elements 2. Preferably, there are two image display elements 2, including a first image display element 21 and a second image display element 22.
  • the image display element 2 may be a display element capable of imaging, such as a lens of AR glasses, a projection screen, and the like.
  • the optical path processing element 3 includes a first projection state and a second projection state; when the optical path processing element 3 rotates to the first projection state, the optical engine 1 sends a first image, and the second projection state An image is projected on the first image display element 21 through the optical path processing element 3; when the optical path processing element 3 is rotated to the second projection state, the optical engine 1 sends a second image, and the second image The image is projected on the second image display element 22 after passing through the optical path processing element 3.
  • the first projection state corresponds to the state in which the optical path processing element 3 projects the first image emitted by the optical engine 1 onto the first image display element 21 of the at least two image display elements 2.
  • the first projection state corresponds to the first angle of rotation of the optical path processing element 3, which can ensure that when the optical path processing element 3 rotates to the first angle, the first image is accurately projected onto the first image display Element 21.
  • the optical engine 1 sends a first image, and the first image is projected onto the first image display element via the optical path processing element 3 twenty one.
  • the second projection state corresponds to a state in which the optical path processing element 3 projects the second image emitted by the optical engine 1 onto the second image display element 22 of the at least two image display elements 2.
  • the second projection state corresponds to the second angle of rotation of the optical path processing element 3, which can ensure that when the optical path processing element 3 rotates to the second angle, the second image is accurately projected onto the second image display Element 22.
  • the optical engine 1 sends a second image, and the second image is projected on the second image display element via the optical path processing element 3 twenty two.
  • the optical engine corresponds to at least two image display elements, and through the rotation of the optical path processing element, the image generated by the optical engine is alternately projected on the imaging planes of the at least two image display elements.
  • At least two image display components share an optical machine, which can save the cost of at least one set of optical components, reduce the weight of the equipment composed of optical components, greatly reduce the power consumption of the product, and solve the problems of serious heat generation and difficult heat dissipation of optical components. Improve the performance of the host.
  • the optical path processing element 3 may be a prism or a reflector.
  • the specific structure and imaging principle of the optical assembly when the optical path processing element 3 is a prism will be described below through specific embodiments; and, When the optical path processing element 3 is a reflector, the specific structure and imaging principle of the optical assembly.
  • the optical path processing element 3 is a first prism 31; the first prism 31 is arranged on an extension of the light exit 11.
  • the image emitted by the optical engine 1 passes through the first prism 31 and is projected on the imaging plane of the image display element 2.
  • the first prism 31 is arranged on the extension line of the light outlet 11 to ensure that the first prism 31 can receive the image emitted by the optical machine 1 to the greatest extent and ensure the integrity of the image.
  • the first prism 31 can be flexibly designed according to the incident angle of the optical engine 1 and the display angle of the image display element 2 and the imaging distance.
  • the first prism 31 When the first prism 31 rotates to a first preset angle, the first prism 31 projects the first image emitted by the light exit 11 on the imaging plane of the first image display element 21; When the prism 31 rotates to a second preset angle, the first prism 31 projects the second image emitted by the light exit 11 on the imaging plane of the second image display element 22.
  • the first image display element 21 is the left eye lens of the AR glasses
  • the second image display element 22 is the right eye lens of the AR glasses.
  • the first preset angle is the relative imaging angle of the left spectacle lens
  • the second preset angle is the relative imaging angle of the right spectacle lens.
  • the optical engine alternately generates a first image projected on the first image display element 21 and a second image projected on the second image display element 22 at a preset frame rate.
  • the optical engine 1 when the first prism 31 rotates to a first preset angle, the optical engine 1 emits a first image, and the first image first reaches the first prism 31, and the first image
  • the prism 31 projects the processed first image on the left eye lens, that is, the first image display element 21; as shown in FIG. 3, the first prism 31 is rotated to a second preset angle
  • the optical engine 1 emits a second image
  • the second image first reaches the first prism 31, and the first prism 31 projects the processed second image on the right eye lens, That is, the second image display element 22.
  • the arrows in FIG. 2 and FIG. 3 indicate the emission and projection directions of the image.
  • the reflection and refraction process of the image emitted by the optical engine 1 in the first prism 31 is shown in FIG. 4.
  • the incident light enters the first prism 31
  • the light incident surface is reflected inside the first prism 31 to reach the light output surface of the first prism 31 to form outgoing light rays.
  • the outgoing light rays enter the first lens, that is, the first image display element 21 in FIG. 4 , To achieve imaging on the first image display element 21.
  • the preset speed of the rotation of the optical path processing element 3 is greater than or equal to 60 frames/sec, that is, the first prism 31 rotates at a rate greater than or equal to 60 frames/sec. Because the human eye has the characteristic of persistence of vision, even if the left and right lenses take turns imaging during the rotation of the first prism 31, as long as the rotation speed is controlled at 60 frames per second, the left and right eyes can be smoothly operated by an optical machine. Watch the playback of the image at the same time.
  • a set of optical machines can be used to realize binocular lens imaging, so that the weight of AR glasses is lighter, and the light weight is created for smart AR glasses to be worn on the user's glasses.
  • the cost is greatly reduced; an optical machine reduces the power consumption of the entire AR glasses by half, which solves the problem of serious heat and heat dissipation of AR glasses; in addition, a set of motherboards only needs to control a set of optical machines and corresponding modules
  • the group can realize binocular imaging, eliminating the risk of delay in left and right eye imaging.
  • the light path processing element 3 is a light reflecting plate 32; the light reflecting plate 32 is arranged on the extension line of the light outlet 11.
  • the reflector plate 32 is arranged on the extension line of the light outlet 11 to ensure that the reflector plate 32 can receive the image emitted by the optical machine 1 to the greatest extent and ensure the integrity of the image.
  • the reflector 32 only needs to rotate a part of the angle to reflect the image emitted by the light outlet 11 to components in different directions.
  • the optical assembly further includes: at least two prisms; each image display element 2 corresponds to one prism.
  • the prism is used to receive the image reflected by the reflector 32 and project the image on the imaging plane of the image display element 2 corresponding thereto.
  • the reflector plate 32 When the reflector plate 32 rotates to a third preset angle, the reflector plate 32 reflects the first image emitted by the light outlet 11 to the second prism 4, and the second prism 4 reflects the first image Projected onto the imaging plane of the first image display element 21; when the reflector 32 rotates to a fourth preset angle, the reflector 32 reflects the second image emitted by the light exit 11 to the third prism 5, so The third prism 5 projects the second image onto the imaging plane of the second image display element 22.
  • the first image display element 21 is the left eye lens of the AR glasses
  • the second image display element 22 is the right eye lens of the AR glasses.
  • the third preset angle is the relative imaging angle of the left spectacle lens
  • the fourth preset angle is the relative imaging angle of the right spectacle lens.
  • the optical engine alternately generates a first image projected on the first image display element 21 and a second image projected on the second image display element 22 at a preset frame rate.
  • the optical engine 1 when the reflector 32 rotates to a third preset angle, the optical engine 1 emits a first image, and the first image first reaches the reflector 32, and the reflector 32 will The first image is reflected to the second prism 4, and the second prism 4 projects the first image on the corresponding left spectacle lens, that is, the first image display element 21; as shown in FIG. 6, in When the reflector 32 rotates to a fourth preset angle, the light engine 1 emits a second image. The second image first reaches the reflector 32, and the reflector 32 reflects the second image to The third prism 5 and the third prism 5 project the second image on the corresponding right eyeglass lens, that is, the second image display element 22. It should be noted that the arrows in FIGS.
  • the preset speed is greater than or equal to 60 frames per second. That is, the reflector 32 rotates at a speed greater than or equal to 60 frames per second. Because the human eye has the characteristic of persistence of vision, even if the left and right lenses take turns imaging during the rotation of the reflector 32, as long as the rotation speed is controlled at 60 frames per second, the left and right eyes can be smoothly realized under the operation of an optical machine. Watch the playback of the image.
  • the optical path processing element 3 is a reflector 32, which can not only realize binocular lens imaging with a set of optical machines, reduce the weight of AR glasses, reduce costs, and solve the problem of serious heat generation and heat dissipation of AR glasses; in addition, all The reflector only needs to be rotated at a partial angle, which can reduce the angle of rotation and save time.
  • the at least two image display elements 2 are symmetrically arranged on both sides of the extension line of the light outlet 11.
  • the symmetrical arrangement enables the light path processing element 3 to face the image display element 2 on the left side of the extension line of the light exit 11, and the angle of the image display element 2 towards the right side of the extension line of the light exit 11 is the same, so
  • the linear distance between the optical path processing element 3 and the image display element 2 on both sides of the extension line of the light outlet 11 is the same, which ensures that the distance and time from the image emitted by the optical engine 1 to the at least two image display elements 2 are the same.
  • the optical assembly further includes a control module for controlling the optical path processing element 3 to rotate at the preset speed.
  • the control module may include a microprocessor, or may be other devices capable of realizing control functions.
  • the optical assembly further includes: a distortion processing unit; the distortion processing unit is arranged between the optical path processing element 3 and the image display element 2.
  • the image emitted by the optical engine 1 is distorted due to factors such as the manufacturing process of lens components or light, the image may be distorted by the distortion processing unit.
  • the optical path processing element 3 is a first prism, since the first prism can be flexibly designed according to the incident angle of the optical machine, the display angle of the lens, and the imaging distance, the distortion processing unit can compensate for it through distortion correction processing. The deviation of the prism angle design is finally imaged on the imaging plane of the image display element 2.
  • the optical engine 1, the image display element 2 (at least two), the optical path processing element 3 (the first prism or the reflector), the The specific setting positions and fixing methods of the second prism 4, the third prism 5, and the distortion processing unit are set according to the requirements of the actual equipment to which the optical assembly is applied.
  • the optical engine corresponds to at least two image display elements, and through the rotation of the optical path processing element, the image generated by the optical engine is alternately projected on the imaging planes of the at least two image display elements.
  • At least two image display components share an optical machine, which can save the cost of at least one set of optical components, reduce the weight of the equipment composed of optical components, greatly reduce the power consumption of the product, and solve the problems of serious heat generation and difficult heat dissipation of optical components. Improve the performance of the host.
  • An embodiment of the present invention also provides an electronic device, which includes the above-mentioned optical component.
  • the electronic device may be AR glasses.
  • AR glasses can also be applied to other electronic devices with optical components.

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Abstract

一种光学组件及电子设备，光学组件包括：光机(1)；设置在光机(1)出光口(11)侧的至少两个图像显示元件(2)，包括第一图像显示元件(21)和第二图像显示元件(22)；设置在光机(1)的出光口(11)与图像显示元件(2)之间的光路处理元件(3)，光路处理元件(3)以预设速度旋转；在光路处理元件(3)旋转至第一投影状态的情况下，光机(1)发送第一图像，第一图像经由光路处理元件(3)后投影于第一图像显示元件(21)；在光路处理元件(3)旋转至第二投影状态的情况下，光机(1)发送第二图像，第二图像经由光路处理元件(3)后投影于第二图像显示元件(22)。

Description

光学组件及电子设备
相关申请的交叉引用
本申请主张在2019年12月6日在中国提交的中国专利申请号No.201911241617.1的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及通信技术领域，尤其涉及一种光学组件及电子设备。
背景技术
电子设备的光学模组中各个器件的位置是相对固定的，一个光机负责一个镜片的成像，例如增强现实(Augmented Reality，AR)眼镜，顶投的AR眼镜，两组光机横列排放于镜片顶端，通过两个棱镜分别将光线垂直导入镜片；侧投AR眼镜，两组光机分别放在眼镜的两侧，直接将图像分别投影摄入两个镜片中。由于每个镜片需要对应的光机才能成像，导致整个光学模组功耗太高，热量集聚快，主板易受热效应的干扰，进而影响主机运行性能。
发明内容
本发明提供了一种光学组件及电子设备，以解决了现有的光学模组发热严重，影响主机运行性能的问题。
为了解决上述技术问题，本发明是这样实现的：
第一方面，本发明实施例提供了一种光学组件，包括：
光机；
设置在所述光机出光口侧的至少两个图像显示元件，所述至少两个图像显示元件包括：第一图像显示元件和第二图像显示元件；
设置在所述光机的出光口与所述图像显示元件之间的光路处理元件，所述光路处理元件以预设速度旋转；
其中，所述光路处理元件包括有第一投影状态和第二投影状态；
在所述光路处理元件旋转至第一投影状态的情况下，所述光机发送第一 图像，所述第一图像经由所述光路处理元件后投影于第一图像显示元件；
在所述光路处理元件旋转至第二投影状态的情况下，所述光机发送第二图像，所述第二图像经由所述光路处理元件后投影于第二图像显示元件。
第二方面，本发明实施例还提供了一种电子设备，所述电子设备包括上述的光学组件。
在本发明实施例中，所述光机对应至少两个图像显示元件，通过所述光路处理元件的旋转，将所述光机产生的图像交替投影在至少两个图像显示元件的成像平面。至少两个图像显示元件共享一部光机，能够节省至少一套光学组件的成本，减轻光学组件构成的设备重量，大大降低了产品的功耗，解决了光学组件发热严重、散热难的问题，提升主机运行性能。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例的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性的前提下，还可以根据这些附图获得其他的附图。
图1表示本发明实施例的光学组件的结构示意图；
图2表示本发明实施例光路处理元件为第一棱镜时的结构示意图之一；
图3表示本发明实施例光路处理元件为第一棱镜时的结构示意图之二；
图4表示本发明实施例的图像在第一棱镜内的反射及折射过程示意图：
图5表示本发明实施例光路处理元件为反光板时的结构示意图之一；
图6表示本发明实施例光路处理元件为反光板时的结构示意图之二。
具体实施方式
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，所描述的实施例是本发明一部分实施例，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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，本发明实施例提供一种光学组件，包括：
光机1；设置在所述光机1出光口侧的至少两个图像显示元件2，所述至少两个图像显示元件2包括：第一图像显示元件21和第二图像显示元件22；设置在所述光机1的出光口11与所述图像显示元件2之间的光路处理元件3，所述光路处理元件3以预设速度旋转；所述光机1的出光口11发出的图像经所述光路处理元件3处理后，投影至所述至少两个图像显示元件2。所述光路处理元件3能够改变入射光的角度，使其精确地投影到所述图像显示元件2的成像平面上。
所述图像显示元件2为至少两个，优选地，所述图像显示元件2为两个，包括第一图像显示元件21和第二图像显示元件22。所述图像显示元件2可以为AR眼镜的镜片、投影屏幕等能够成像的显示原件。
其中，所述光路处理元件3包括有第一投影状态和第二投影状态；在所述光路处理元件3旋转至第一投影状态的情况下，所述光机1发送第一图像，所述第一图像经由所述光路处理元件3后投影于第一图像显示元件21；在所述光路处理元件3旋转至第二投影状态的情况下，所述光机1发送第二图像，所述第二图像经由所述光路处理元件3后投影于第二图像显示元件22。
该实施例中，所述第一投影状态对应于所述光路处理元件3将光机1发出的第一图像投影到所述至少两个图像显示元件2中的第一图像显示元件21的状态，所述第一投影状态对应于所述光路处理元件3旋转的第一角度，能够保证所述光路处理元件3在旋转至第一角度时，将第一图像准确的投影至所述第一图像显示元件21。具体地，在所述光路处理元件3旋转至第一投影状态的情况下，所述光机1发送第一图像，所述第一图像经由所述光路处理元件3后投影于第一图像显示元件21。
所述第二投影状态对应于所述光路处理元件3将光机1发出的第二图像投影到所述至少两个图像显示元件2中的第二图像显示元件22的状态。所述第二投影状态对应于所述光路处理元件3旋转的第二角度，能够保证所述光路处理元件3在旋转至第二角度时，将第二图像准确的投影至所述第二图像显示元件22。具体地，在所述光路处理元件3旋转至第二投影状态的情况下，所述光机1发送第二图像，所述第二图像经由所述光路处理元件3后投影于第二图像显示元件22。
本发明的实施例，所述光机对应至少两个图像显示元件，通过所述光路处理元件的旋转，将所述光机产生的图像交替投影在至少两个图像显示元件的成像平面。至少两个图像显示元件共享一部光机，能够节省至少一套光学组件的成本，减轻光学组件构成的设备重量，大大降低了产品的功耗，解决了光学组件发热严重、散热难的问题，提升主机运行性能。
需要说明的是，所述光路处理元件3可以为棱镜也可以为反光板，下面通过具体实施例说明在所述光路处理元件3为棱镜时，所述光学组件的具体结构以及成像原理；以及，在所述光路处理元件3为反光板时，所述光学组件的具体结构以及成像原理。
可选地，所述光路处理元件3为第一棱镜31；所述第一棱镜31设置在所述出光口11的延长线上。所述光机1发出的图像经过所述第一棱镜31，投影在所述图像显示元件2的成像平面。所述第一棱镜31设置在所述出光口11的延长线上，保证所述第一棱镜31能够最大程度的接收所述光机1发出的图像，保证图像的完整性。所述第一棱镜31可以根据光机1的入射角度和图像显示元件2的显示角度以及成像的距离来灵活设计。
在所述第一棱镜31旋转至第一预设角度时，所述第一棱镜31将所述出光口11发出的第一图像投影在第一图像显示元件21的成像平面；在所述第一棱镜31旋转至第二预设角度时，所述第一棱镜31将所述出光口11发出的第二图像投影在第二图像显示元件22的成像平面。
以所述光学组件应用在AR眼镜为例，所述第一图像显示元件21为所述AR眼镜的左眼镜片，所述第二图像显示元件22为所述AR眼镜的右眼镜片，所述第一预设角度为左眼镜片的相对成像角度，所述第二预设角度为右眼镜片的相对成像角度。所述光机以预设帧率交替产生投影在第一图像显示元件21上的第一图像和投影在第二图像显示元件22上的第二图像。
如图2所示，在所述第一棱镜31旋转至第一预设角度时，所述光机1发出第一图像，所述第一图像首先达到所述第一棱镜31，所述第一棱镜31将经过处理后的所述第一图像投影在所述左眼镜片，即所述第一图像显示元件21；如图3所示，在所述第一棱镜31旋转至第二预设角度时，所述光机1发出第二图像，所述第二图像首先达到所述第一棱镜31，所述第一棱镜31将 经过处理后的所述第二图像投影在所述右眼镜片，即所述第二图像显示元件22。需要说明的是，图2和图3中的箭头表示图像的发射和投影方向。
所述光机1发出的图像在所述第一棱镜31内的反射及折射过程如图4所示，以所述第一棱镜31为三棱镜为例，入射光线射入所述第一棱镜31的入光面，在所述第一棱镜31的内部经过反射到达所述第一棱镜31的出光面形成出射光线，所述出射光线射入第一镜片，即图4中的第一图像显示元件21，在第一图像显示元件21上实现成像。
需要说明的是，所述光路处理元件3旋转的预设速度大于或等于60帧/秒，即所述第一棱镜31以大于或等于60帧/秒的速度旋转。因为人眼有视觉暂留的特点，即使在所述第一棱镜31的旋转过程中左右镜片轮流成像，只要控制在每秒60帧的旋转速度即可顺利实现在一台光机操作下左右眼同时观赏图像的播放。
对于所述光学组件在AR眼镜的应用，能够用一套光机实现双目镜片成像，使AR眼镜的重量更轻，轻小的配重给智能AR眼镜悬挂式佩戴于用户的眼镜之上创造了条件，成本大幅度降低；一台光机使得整个AR眼镜的功耗减半，解决了AR眼镜发热严重散热难的问题；此外，一套主板只需控制一套光机和光源的相应模组即可实现双目成像，解除了左右目成像延迟的风险。
可选地，所述光路处理元件3为反光板32；所述反光板32设置在所述出光口11的延长线上。所述反光板32设置在所述出光口11的延长线上，保证所述反光板32能够最大程度的接收所述光机1发出的图像，保证图像的完整性。所述反光板32只需做部分角度旋转即可实现将所述出光口11发出的图像反射到不同方向的部件上。
在所述光路处理元件3为反光板32的情况下，所述光学组件还包括：至少两个棱镜；每一个所述图像显示元件2对应一个所述棱镜。所述棱镜用于接收所述反光板32反射的图像，并将所述图像投影在与其对应的图像显示元件2的成像平面。
在所述反光板32旋转至第三预设角度时，所述反光板32将所述出光口11发出的第一图像反射到第二棱镜4，所述第二棱镜4将所述第一图像投影 到第一图像显示元件21的成像平面；在所述反光板32旋转至第四预设角度时，所述反光板32将所述出光口11发出的第二图像反射到第三棱镜5，所述第三棱镜5将所述第二图像投影到第二图像显示元件22的成像平面。
以所述光学组件应用在AR眼镜为例，所述第一图像显示元件21为所述AR眼镜的左眼镜片，所述第二图像显示元件22为所述AR眼镜的右眼镜片，所述第三预设角度为左眼镜片的相对成像角度，所述第四预设角度为右眼镜片的相对成像角度。所述光机以预设帧率交替产生投影在第一图像显示元件21上的第一图像和投影在第二图像显示元件22上的第二图像。
如图5所示，在所述反光板32旋转至第三预设角度时，所述光机1发出第一图像，所述第一图像首先达到所述反光板32，所述反光板32将所述第一图像反射至第二棱镜4，所述第二棱镜4将所述第一图像投影在与其对应的左眼镜片，即所述第一图像显示元件21；如图6所示，在所述反光板32旋转至第四预设角度时，所述光机1发出第二图像，所述第二图像首先达到所述反光板32，所述反光板32将所述第二图像反射至所述第三棱镜5，所述第三棱镜5将所述第二图像投影在与其对应的右眼镜片，即所述第二图像显示元件22。需要说明的是，图5和图6中的箭头表示图像的发射和投影方向，所述第二棱镜4、所述反光板32以及所述第三棱镜5之间贯穿的虚线不表示三者具有连接关系，所述虚线表示三者之间的相对位置关系，即位于同一条轴线上。
可选地，所述预设速度大于或等于60帧/秒。即所述反光板32以大于或等于60帧/秒的速度旋转。因为人眼有视觉暂留的特点，即使在所述反光板32的旋转过程中左右镜片轮流成像，只要控制在每秒60帧的旋转速度即可顺利实现在一台光机操作下左右眼同时观赏图像的播放。
该实施例中，所述光路处理元件3为反光板32，不仅能够用一套光机实现双目镜片成像，降低AR眼镜重量，降低成本，解决AR眼镜发热严重散热难的问题；此外，所述反光板只需做部分角度旋转即可，能够缩小旋转角度，更加省时。
可选地，所述至少两个图像显示元件2在所述出光口11的延长线两侧对称设置。对称设置的形式能够使所述光路处理元件3朝向所述出光口11延长 线左侧的图像显示元件2，与朝向所述出光口11延长线右侧的图像显示元件2的角度相同，则所述光路处理元件3到所述出光口11延长线两侧的图像显示元件2的直线距离相同，保证所述光机1发出的图像到所述至少两个图像显示元件2的距离和时间相同。
可选地，所述光学组件还包括：控制模组，用于控制所述光路处理元件3以所述预设速度旋转。所述控制模组可以包括微处理器，也可以为其他能够实现控制功能的器件。
可选地，所述光学组件还包括：畸变处理单元；所述畸变处理单元设置在所述光路处理元件3与所述图像显示元件2之间。
该实施例中，若所述光机1发出的图像由于镜头零部件的制造工艺或者光线等因素造成畸变，可以通过所述畸变处理单元对图像进行畸变矫正。在所述光路处理元件3为第一棱镜时，由于所述第一棱镜可以根据光机的入射角度和镜片的显示角度以及成像的距离来灵活设计，所述畸变处理单元可以通过畸变校正处理弥补棱镜角度设计的偏差，最终成像在所述图像显示元件2的成像平面上。
需要说明的是，在本发明的实施例中，所述光机1、所述图像显示元件2(至少为两个)、所述光路处理元件3(为第一棱镜或者反光板)、所述第二棱镜4、所述第三棱镜5以及所述畸变处理单元的具体设置位置以及固定方式，根据所述光学组件应用的实际设备的需求设置。
本发明的实施例，所述光机对应至少两个图像显示元件，通过所述光路处理元件的旋转，将所述光机产生的图像交替投影在至少两个图像显示元件的成像平面。至少两个图像显示元件共享一部光机，能够节省至少一套光学组件的成本，减轻光学组件构成的设备重量，大大降低了产品的功耗，解决了光学组件发热严重、散热难的问题，提升主机运行性能。
本发明实施例还提供一种电子设备，所述电子设备包括上述的光学组件。所述电子设备可以为AR眼镜，本领域技术人员可以理解，除了AR眼镜作为电子设备之外，亦可适用于其它具备光学组件的电子设备。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见 即可。
尽管已描述了本发明实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者电子设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者电子设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者电子设备中还存在另外的相同要素。
以上所述的是本发明的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本发明所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本发明的保护范围内。

Claims (11)

  1. 一种光学组件，包括：
    光机(1)；
    设置在所述光机(1)出光口侧的至少两个图像显示元件(2)，所述至少两个图像显示元件(2)包括：第一图像显示元件(21)和第二图像显示元件(22)；
    设置在所述光机(1)的出光口(11)与所述图像显示元件(2)之间的光路处理元件(3)，所述光路处理元件(3)以预设速度旋转；
    其中，所述光路处理元件(3)包括有第一投影状态和第二投影状态；
    在所述光路处理元件(3)旋转至第一投影状态的情况下，所述光机(1)发送第一图像，所述第一图像经由所述光路处理元件(3)后投影于第一图像显示元件(21)；
    在所述光路处理元件(3)旋转至第二投影状态的情况下，所述光机(1)发送第二图像，所述第二图像经由所述光路处理元件(3)后投影于第二图像显示元件(22)。
  2. 根据权利要求1所述的光学组件，其中，所述光路处理元件(3)为第一棱镜(31)；
    所述第一棱镜(31)设置在所述出光口(11)的延长线上。
  3. 根据权利要求2所述的光学组件，其中，在所述第一棱镜(31)旋转至第一预设角度时，所述第一棱镜(31)将所述出光口(11)发出的第一图像投影在第一图像显示元件(21)的成像平面；
    在所述第一棱镜(31)旋转至第二预设角度时，所述第一棱镜(31)将所述出光口(11)发出的第二图像投影在第二图像显示元件(22)的成像平面。
  4. 根据权利要求1所述的光学组件，其中，所述光路处理元件(3)为反光板(32)；
    所述反光板(32)设置在所述出光口(11)的延长线上。
  5. 根据权利要求4所述的光学组件，还包括：至少两个棱镜；
    每一个所述图像显示元件(2)对应一个所述棱镜。
  6. 根据权利要求5所述的光学组件，其中，
    在所述反光板(32)旋转至第三预设角度时，所述反光板(32)将所述出光口(11)发出的第一图像反射到第二棱镜(4)，所述第二棱镜(4)将所述第一图像投影到第一图像显示元件(21)的成像平面；
    在所述反光板(32)旋转至第四预设角度时，所述反光板(32)将所述出光口(11)发出的第二图像反射到第三棱镜(5)，所述第三棱镜(5)将所述第二图像投影到第二图像显示元件(22)的成像平面。
  7. 根据权利要求1所述的光学组件，其中，所述预设速度大于或等于60帧/秒。
  8. 根据权利要求1所述的光学组件，其中，所述至少两个图像显示元件(2)在所述出光口(11)的延长线两侧对称设置。
  9. 根据权利要求1所述的光学组件，还包括：控制模组，用于控制所述光路处理元件(3)以所述预设速度旋转。
  10. 根据权利要求1所述的光学组件，还包括：畸变处理单元；
    所述畸变处理单元设置在所述光路处理元件(3)与所述图像显示元件(2)之间。
  11. 一种电子设备，包括权利要求1至10中任一项所述的光学组件。
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CN108957755A (zh) * 2018-07-27 2018-12-07 京东方科技集团股份有限公司 一种显示组件及其控制方法、平视显示器及汽车
CN110297329A (zh) * 2019-05-30 2019-10-01 华为技术有限公司 一种智能眼镜
CN111007670A (zh) * 2019-12-06 2020-04-14 维沃移动通信有限公司 一种光学组件及电子设备

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