WO2022141846A1 - 一种分光装置及投影光学系统 - Google Patents

一种分光装置及投影光学系统 Download PDF

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Publication number
WO2022141846A1
WO2022141846A1 PCT/CN2021/083352 CN2021083352W WO2022141846A1 WO 2022141846 A1 WO2022141846 A1 WO 2022141846A1 CN 2021083352 W CN2021083352 W CN 2021083352W WO 2022141846 A1 WO2022141846 A1 WO 2022141846A1
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Prior art keywords
spectroscopic device
light beam
light
reflection
area
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PCT/CN2021/083352
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English (en)
French (fr)
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朱炜湛
唐晓峰
丁明内
杨伟樑
高志强
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广景视睿科技（深圳）有限公司
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Publication of WO2022141846A1 publication Critical patent/WO2022141846A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • 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
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam

Definitions

  • the embodiments of the present application relate to the technical field of optical devices, and in particular, to a spectroscopic device and a projection optical system.
  • Spectroscopic device in a broad sense, is a device that can emit two or more light rays at the same time or at different times.
  • the light can be monochromatic light or compound light;
  • the above refers to a device that uses dispersion phenomenon to disperse composite light with a wide wavelength range and become many "monochromatic light" with a narrow wavelength range, that is, a spectrometer.
  • the spectroscopic devices on the market are usually only capable of emitting monochromatic light beams, and cannot solve how to emit two kinds of composite light beams at the same time. light to form two different pictures.
  • the purpose of the embodiments of the present application is to provide a light splitting device and a projection optical system.
  • the embodiments of the present application provide a spectroscopic device, the spectroscopic device is disk-shaped in a plan view direction, and the spectroscopic device includes two lens regions in a plan view direction, wherein ,
  • the two mirror areas include a reflection area and a transmission area, the reflection area is used for reflecting the first light beam, and the transmission area is used for transmitting the second light beam, and the first light beam and the second light beam can be formed separately.
  • Composite light of two separate frames
  • the two lens regions are arranged in the same area in the top view direction.
  • the reflection area is coated with a high-reflection film for reflecting the first light beam.
  • the transmissive region is provided with an anti-reflection coating for transmitting the second light beam.
  • the transmissive region is a hollow arrangement.
  • the spectroscopic device is made of H-K9L colorless optical glass.
  • the embodiment of the present application provides a projection optical system, which is characterized by comprising:
  • an image generating unit for outputting an image beam, wherein the imaging beam includes the first beam and the second beam;
  • the spectroscopic device configured to reflect the first light beam through the reflection region and transmit the second light beam through the transmission region.
  • the projection optical system further includes:
  • a controller which is respectively connected to the image generating unit and the spectroscopic device, and is used to control the image beam emitted by the image generating unit and the light output of the spectroscopic device in a time-sequential manner;
  • the controller is configured to only control the reflection area of the spectroscopic device to emit light when controlling the image generating unit to emit the first light beam, so that the first light beam is reflected and emitted,
  • the controller is configured to control only the transmission region of the spectroscopic device to emit light when controlling the image generating unit to emit the second light beam, so that the second light beam is transmitted and emitted.
  • the projection optical system further includes:
  • a first driving device which is connected to the controller and the spectroscopic device respectively, and is used to drive the spectroscopic device to rotate according to a control instruction issued by the controller;
  • the spectroscopic device is configured to realize the reflection and output of the first light beam when it is rotated to a first angle
  • the spectroscopic device is configured to transmit the second light beam when it is rotated to a second angle.
  • the image generating unit is a DLP display chip or an LCOS display chip.
  • the beneficial effects of the present application are: different from the prior art, the embodiment of the present application provides a spectroscopic device and a projection optical system, and the spectroscopic device is disc-shaped in the top view direction, In a plan view, the spectroscopic device includes two mirror areas, wherein the two mirror areas include a reflection area and a transmission area, the reflection area is used for reflecting the first light beam, and the transmission area is used for transmitting the second light beam , the first light beam and the second light beam are composite lights that can respectively form two separate pictures, and the spectroscopic device provided in the embodiment of the present application can realize the simultaneous or time-division output of two different composite lights, so as to form two image of a single frame.
  • FIG. 1 is a schematic structural diagram of a spectroscopic device provided in Embodiment 1 of the present application.
  • FIG. 2 is a schematic top view of the spectroscopic device described in FIG. 1;
  • FIG. 3 is a schematic structural diagram of a projection optical system according to Embodiment 2 of the present application.
  • FIG. 4 is a schematic structural diagram of another projection optical system provided in Embodiment 2 of the present application.
  • connection structure in the present application, the position of the components is defined with reference to the direction in which the light beam is incident on the spectroscopic device from a plan view direction.
  • an embodiment of the present application provides a light splitting device and a projection optical system.
  • the light splitting device is disc-shaped in the top view direction.
  • the spectroscopic device includes two mirror areas, wherein the two mirror areas include a reflection area and a transmission area, the reflection area is used to reflect the first light beam, and the transmission area is used to transmit the second light beam light beams, the first light beam and the second light beam are composite lights that can form two separate pictures respectively, and the spectroscopic device provided in the embodiment of the present application can realize the simultaneous or time-division output of two different composite lights to form Images of two separate frames.
  • FIG. 1 is a structure of a spectroscopic device 10 provided by an embodiment of the present application
  • FIG. 2 is the spectroscopic device 10 described in FIG. 1 . 1 and 2
  • the spectroscopic device 10 is disc-shaped in the top view direction
  • the spectroscopic device 10 includes two lens areas in the top view direction, wherein the two lens areas include A reflection area S1 and a transmission area S2, the reflection area S1 is used for reflecting the first light beam L1, and the transmission area S2 is used for transmitting the second light beam L2, the first light beam L1 and the second light beam L2 are capable of respectively Composite light that forms two separate pictures.
  • the two lens regions are arranged in the same area in a plan view direction. That is to say, the area of the transmission area S2 is equal to the area of the reflection area S1, and the apex angle of the fan-shaped transmission area S2 and the reflection area S1 is 90 degrees.
  • the disc-shaped spectroscopic device 10 is divided into two semicircular lens areas, wherein the left side is the transmission area S2, and the right side is the reflection area S1. It should be noted that, in an actual application scenario, the setting of the transmission area S2 and the reflection area S1 may not be as shown in FIG. 2 .
  • the reflection area S1 may be arranged on the left, and the transmission area S1
  • the area S2 can be set on the right side, or the reflective area 1 can be set on the upper side, and the transmissive area S2 can be set on the lower side, or, the reflective area 1 can be set on the lower side, and the transmissive area S2 can be set on the lower side
  • the area, size, and setting position of the transmission area S2 and the reflection area S1 can be designed according to actual needs, and do not need to be bound by the limitations of the embodiments of the present application and the accompanying drawings.
  • the reflection area S1 is coated with a high-reflection film for reflecting the first light beam L1.
  • a film system that can reflect the wavelength of the first light beams L1 may also be coated on the reflection area S1, so as to realize Total reflection of the first light beam L1.
  • the first light beam L1 is a mixed light including multiple colors, a total reflection film can also be coated to realize the reflection of the first light beam L1.
  • the film system setting of the reverse film can be designed according to actual needs, and it is not necessary to be bound by the limitations of the embodiments of the present application and the accompanying drawings.
  • the transmission area S2 is provided with an anti-reflection film for transmitting the second light beam L2.
  • the transmissive area S2 is provided by hollowing out.
  • a film system capable of transmitting the wavelength of the second light beams L2 may also be coated on the transmission region S2, so as to To achieve full transmission of the second light beam L2, further, the transmission area S2 can also be hollowed out to achieve full transmission, but this may cause other unwanted stray light to enter the subsequent optical modules. , therefore, preferably, an anti-reflection film is plated to achieve full transmission.
  • the transmission area S2 can be hollowed out or coated with an anti-reflection film capable of transmitting all the light wave types of the mixed light to achieve the desired effect.
  • the transmission of the second light beam L2, specifically, whether the anti-reflection film is plated, whether the transmission area S2 is hollowed out, and the film system setting of the anti-reflection film can be designed according to actual needs.
  • the spectroscopic device 10 is made of H-K9L colorless optical glass.
  • the material of the spectroscopic device 10 can also be selected according to actual needs and colors, etc., specifically, can be designed according to actual needs, and do not need to be bound by the limitations of the embodiments of the present application and the accompanying drawings.
  • FIG. 3 shows the structure of a projection optical system provided by an embodiment of the present application.
  • the projection optical system 20 includes: The image generating unit 21 and the spectroscopic device 10 described in the first embodiment above.
  • the image generating unit 21 is configured to output an image light beam, wherein the imaging light beam includes the first light beam L1 and the second light beam L2.
  • the image generation unit 21 may be a DLP (Digital Light Processing) display chip, or a DMD (Digital Micromirror Device) display chip, or an LCOS (Liquid Crystalon Silicon, liquid crystal on silicon) display chip, etc. It can be set according to actual needs, and does not need to be bound by the limitations of the embodiments of the present application.
  • the spectroscopic device 10 is configured to reflect the first light beam L1 through the reflection area S1 and transmit the second light beam L2 through the transmission area S2. It should be noted that the spectroscopic device 10 is the spectroscopic device 10 shown in the above-mentioned first embodiment, and its specific structure and design refer to the above-mentioned first embodiment, which will not be described in detail here.
  • FIG. 4 shows the structure of another projection optical system provided by the embodiments of the present application.
  • the projection optical system 20 further includes: a controller 22 , which is respectively connected with the The image generating unit 21 is connected to the spectroscopic device 10, and is used to control the image beam emitted by the image generating unit 21 and the light output of the spectroscopic device 10 in a time-sequential manner; wherein, the controller 22 is configured to control the When the image generating unit 21 emits the first light beam L1, only the reflection area S1 of the spectroscopic device 10 is controlled to emit light, so that the first light beam L1 is reflected and emitted, and the controller 22 is configured to control the image generating unit 21 When the second light beam L2 is emitted, only the transmission region S2 of the spectroscopic device 10 is controlled to emit light, so that the second light beam L2 is transmitted and emitted.
  • the spectroscopic device 10 and the controller 22 is respectively connected with the The image generating unit 21 is connected to the spectr
  • the controller 22 can be various types of chips, modules, units, devices and/or devices with computing functions, such as processors and servers that are commonly used in optical projection and can send control instructions. Further, the controller 22 can also be It has the function of communication with the outside world and/or accepts the calculation and/or control functions that projection devices usually have, such as user gestures or instructions. Example limitation.
  • the projection optical system 20 further includes: a first driving device 23 , which is connected to the controller 22 and the spectroscopic device 10 respectively, and is used for according to the The control command issued by the controller 22 drives the spectroscopic device 10 to rotate; wherein, the spectroscopic device 10 is configured to realize the reflection and output of the first light beam L1 when the spectroscopic device 10 rotates to a first angle, and the spectroscopic device 10 is configured to achieve transmission and exit of the second light beam L2 when rotated to a second angle.
  • a first driving device 23 which is connected to the controller 22 and the spectroscopic device 10 respectively, and is used for according to the The control command issued by the controller 22 drives the spectroscopic device 10 to rotate; wherein, the spectroscopic device 10 is configured to realize the reflection and output of the first light beam L1 when the spectroscopic device 10 rotates to a first angle, and the spectroscopic device 10 is configured to achieve transmission and exit of the second light beam L2 when rotated to a second angle.
  • the rotation center may be the center of the disk of the spectroscopic device 10, or it may be on the circumference of the spectroscopic device 10, and the rotation direction may be Clockwise can also be counterclockwise, and specifically, it can be set according to actual needs, and does not need to be bound by the limitations of the embodiments of the present application.
  • the first driving device 23 may drive the spectroscopic device 10 in a mechanical manner, or drive the spectroscopic device 10 in a software-driven manner, or may also use a combination of software and hardware
  • the spectroscopic device 10 is driven in a manner such as a servo/motor/motor drive, or a software drive is implemented through a wired/wireless connection between the controller 22 and a server/system/electronic device, or a switch is used
  • the tube/switch circuit driving, etc. specifically, can be set according to actual needs, and does not need to be bound by the limitations of the embodiments of the present application.
  • An embodiment of the present application provides a spectroscopic device and a projection optical system.
  • the spectroscopic device is disk-shaped in a plan view, and the spectroscopic device includes two lens areas in a plan view, wherein the two lens areas It includes a reflection area and a transmission area, the reflection area is used to reflect the first light beam, the transmission area is used to transmit the second light beam, and the first light beam and the second light beam are composites that can respectively form two separate pictures
  • the light splitting device provided by the embodiments of the present application can realize the simultaneous or time-division output of two different composite lights, so as to form images of two separate pictures.
  • the device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physically separated unit, that is, it can be located in one place, or it can be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

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Abstract

一种分光装置（10）及投影光学系统（20），分光装置（10）在俯视方向上为圆盘形，在俯视方向上分光装置（10）包括两个镜片区域，两个镜片区域包括反射区域（S1）和透射区域（S2），反射区域（S1）用于反射第一光束（L1），透射区域（S2）用于透射第二光束（L2），第一光束（L1）和第二光束（L2）为能够分别形成两幅单独画面的复合光，分光装置（10）能够实现两种不同的复合光的同时或分时出射，以形成两幅单独画面的图像。

Description

一种分光装置及投影光学系统
相关申请的交叉参考
本申请要求于2020年12月28日提交中国专利局，申请号为202023228660.5，申请名称为“一种分光装置及投影光学系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及光学器件技术领域，特别涉及一种分光装置及投影光学系统。
背景技术
分光装置，从广义上来讲，是能够同时或不同时分别出射两种或两种以上的光线的装置，光线可以是单色光，也可以是复合光；从狭义上来讲，分光装置在目前市面上指的是利用色散现象将波长范围很宽的复合光分散开来，成为许多波长范围狭小的“单色光”的装置，也即是分光计。
在实现本申请实施例过程中，申请人发现以上相关技术中至少存在如下问题：目前，市面上的分光装置如上所述的，通常只能够出射单色光光束，不能解决如何同时出射两种复合光，以形成两幅不同画面的情况。
发明内容
针对现有技术的上述缺陷，本申请实施例的目的是提供一种分光装置及投影光学系统。
本申请实施例的目的是通过如下技术方案实现的：
为解决上述技术问题，第一方面，本申请实施例中提供了一种分光装置，所述分光装置在俯视方向上为圆盘形，在俯视方向上所述分光装置包括两个镜片区域，其中，
所述两个镜片区域包括反射区域和透射区域，所述反射区域用于反射第一光束，所述透射区域用于透射第二光束，所述第一光束和所述第二光束为能够分别形成两幅单独画面的复合光。
在一些实施例中，所述两个镜片区域在俯视方向上等面积设置。
在一些实施例中，所述反射区域镀设有用于反射所述第一光束的高反膜。
在一些实施例中，所述透射区域设置有用于透射所述第二光束的增透膜。
在一些实施例中，所述透射区域为挖空设置。
在一些实施例中，所述分光装置由H-K9L无色光学玻璃制成。
为解决上述技术问题，第二方面，本申请实施例中提供了一种投影光学系统，其特征在于，包括：
图像生成单元，用于输出图像光束，其中，所述成像光束包括所述第一光束和所述第二光束；以及，
如上述第一方面所述的分光装置，所述分光装置配置为通过所述反射区域反射所述第一光束，通过所述透射区域透射所述第二光束。
在一些实施例中，所述投影光学系统还包括：
控制器，其分别与所述图像生成单元和所述分光装置连接，用于分时序控制所述图像生成单元所出射的图像光束和所述分光装置的出光；其中，
所述控制器配置为在控制所述图像生成单元出射第一光束时仅控 制所述分光装置的反射区域出光，以使所述第一光束反射出射，
所述控制器配置为在控制所述图像生成单元出射第二光束时仅控制所述分光装置的透射区域出光，以使所述第二光束透射出射。
在一些实施例中，所述投影光学系统还包括：
第一驱动装置，其分别与所述控制器和所述分光装置连接，用于根据所述控制器下发的控制指令驱动所述分光装置进行旋转；其中，
所述分光装置配置为在旋转至第一角度时，实现所述第一光束的反射出射，
所述分光装置配置为在旋转至第二角度时，实现所述第二光束的透射出射。
在一些实施例中，所述图像生成单元为DLP显示芯片或者LCOS显示芯片。
与现有技术相比，本申请的有益效果是：区别于现有技术的情况，本申请实施例中提供了一种分光装置及投影光学系统，该分光装置在俯视方向上为圆盘形，在俯视方向上所述分光装置包括两个镜片区域，其中，所述两个镜片区域包括反射区域和透射区域，所述反射区域用于反射第一光束，所述透射区域用于透射第二光束，所述第一光束和所述第二光束为能够分别形成两幅单独画面的复合光，本申请实施例提供的分光装置能够实现两种不同的复合光的同时或分时出射，以形成两幅单独画面的图像。
附图说明
一个或多个实施例中通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件/模块和步骤表示为类似的元件/模块和步骤，除非有特别 申明，附图中的图不构成比例限制。
图1是本申请实施例一提供的一种分光装置的结构示意图；
图2是图1所述分光装置的俯视图示意图；
图3是本申请实施例二提供的一种投影光学系统的结构示意图；
图4是本申请实施例二提供的另一种投影光学系统的结构示意图。
具体实施方式
下面结合具体实施例对本申请进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本申请，但不以任何形式限制本申请。应当指出的是，对本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进。这些都属于本申请的保护范围。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需要说明的是，如果不冲突，本申请实施例中的各个特征可以相互结合，均在本申请的保护范围之内。另外，虽然在装置示意图中进行了功能模块划分，但是在某些情况下，可以以不同于装置中的模块划分。此外，本文所采用的“第一”、“第二”等字样并不对数据和执行次序进行限定，仅是对功能和作用基本相同的相同项或相似项进行区分。
本说明书所使用的术语“左”、“右”以及类似的表述只是为了说明的目的。为了便于连接结构限定，本申请以光束从俯视方向上入射到分光装置的方向为参考进行部件的位置限定。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是用 于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本申请各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。
为了解决现有的分光装置无法实现两种不同的复合光的同时或分时出射的问题，本申请实施例提供了一种分光装置及投影光学系统，该分光装置在俯视方向上为圆盘形，在俯视方向上所述分光装置包括两个镜片区域，其中，所述两个镜片区域包括反射区域和透射区域，所述反射区域用于反射第一光束，所述透射区域用于透射第二光束，所述第一光束和所述第二光束为能够分别形成两幅单独画面的复合光，本申请实施例提供的分光装置能够实现两种不同的复合光的同时或分时出射，以形成两幅单独画面的图像。
具体地，下面结合附图，对本申请实施例作进一步阐述。
实施例一
本申请实施例提供了一种分光装置，请一并参见图1和图2，其中，图1是本申请实施例提供的一种分光装置10的结构，图2是图1所述分光装置10的俯视图，如图1和图2所示，所述分光装置10在俯视方向上为圆盘形，在俯视方向上所述分光装置10包括两个镜片区域，其中，所述两个镜片区域包括反射区域S1和透射区域S2，所述反射区域S1用于反射第一光束L1，所述透射区域S2用于透射第二光束L2，所述第一光束L1和所述第二光束L2为能够分别形成两幅单独画面的复合光。
进一步地，所述两个镜片区域在俯视方向上等面积设置。也即是说，所述透射区域S2的面积与所述反射区域S1的面积相等，扇形的所述透 射区域S2和所述反射区域S1的顶角为90度。例如，如本申请实施例图2所示的，圆盘形的分光装置10一字划分为两个半圆形的镜片区域，其中，左边为透射区域S2，右边为反射区域S1。需要说明的是，在实际应用场景中，所述透射区域S2与所述反射区域S1的设置也可以不是如图2所示的设计，例如，所述反射区域S1可以设置在左边，所述透射区域S2可以设置在右边，或者，所述反射区域1可以设置在上侧，所述透射区域S2可以设置在下侧，再或者，所述反射区域1可以设置在下侧，所述透射区域S2可以设置在上侧，具体地，所述透射区域S2和所述反射区域S1的面积大小、尺寸大小、设置位置等可根据实际需要进行设计，不需要拘泥于本申请实施例及附图的限定。
进一步地，所述反射区域S1镀设有用于反射所述第一光束L1的高反膜。在本申请实施例中，为了尽可能让所有的所述第一光束L1能够被反射，还可以在所述反射区域S1镀设有能够反射所述第一光束L1的波长的膜系，以实现所述第一光束L1的全反射。若所述第一光束L1为包含多种颜色的混合光，还可以镀设全反膜以实现所述第一光束L1的反射，具体地，是否镀设所述高反膜，以及所述高反膜的膜系设置等可根据实际需要进行设计，不需要拘泥于本申请实施例及附图的限定。
进一步地，所述透射区域S2设置有用于透射所述第二光束L2的增透膜。或者，所述透射区域S2为挖空设置。在本申请实施例中，为了尽可能让所有的所述第二光束L2能够被透射出射，还可以在所述透射区域S2镀设有能够透射所述第二光束L2的波长的膜系，以实现所述第二光束L2的全透射，进一步地，还可以将所述透射区域S2挖空设置来实现全透射，但这可能会导致其他不想要的杂散光也一并进入后续光学模组中，因此，优选地，镀设增透膜以实现全透射。若所述第二光束L2为包含多种颜色的混合光，可以将所述透射区域S2挖空设置或者镀设 能够透射所述混合光所述光波类别的所有膜系的增透膜以实现所述第二光束L2的透射，具体地，是否镀设所述增透膜，是否挖空设置所述透射区域S2，以及所述增透膜的膜系设置等可根据实际需要进行设计，不需要拘泥于本申请实施例及附图的限定。
进一步地，在本使用新型实施例中，所述分光装置10由H-K9L无色光学玻璃制成，在其他的一些实施例中，也可以根据实际需要选择制成所述分光装置10的材料及颜色等，具体地，可根据实际需要进行设计，不需要拘泥于本申请实施例及附图的限定。
实施例二
本申请实施例提供了一种投影光学系统20，请参见图3，其示出了本申请实施例提供的一种投影光学系统的结构，如图3所示，所述投影光学系统20包括：图像生成单元21和如上述实施例一所述的分光装置10。
所述图像生成单元21，用于输出图像光束，其中，所述成像光束包括所述第一光束L1和所述第二光束L2。所述图像生成单元21可以是DLP(Digital Light Processing)显示芯片，或者，DMD(数字微镜器件，Digital Micromirror Device)显示芯片，或者，LCOS(Liquid Crystalon Silicon，硅基液晶)显示芯片等，具体地，可根据实际需要进行设置，不需要拘泥于本申请实施例的限定。
所述分光装置10配置为通过所述反射区域S1反射所述第一光束L1，通过所述透射区域S2透射所述第二光束L2。需要说明的是，所述分光装置10为上述实施例一所示的分光装置10，其具体结构和设计请参见上述实施例一，此处不再详述。
进一步地，在一些实施例中，请参见图4，其示出了本申请实施例 提供的另一种投影光学系统的结构，所述投影光学系统20还包括：控制器22，其分别与所述图像生成单元21和所述分光装置10连接，用于分时序控制所述图像生成单元21所出射的图像光束和所述分光装置10的出光；其中，所述控制器22配置为在控制所述图像生成单元21出射第一光束L1时仅控制所述分光装置10的反射区域S1出光，以使所述第一光束L1反射出射，所述控制器22配置为在控制所述图像生成单元21出射第二光束L2时仅控制所述分光装置10的透射区域S2出光，以使所述第二光束L2透射出射。需要说明的是，必要时，所述分光装置10和所述控制器22可以设置为一体，以实现其分别出射两束不同的光线的功能。
所述控制器22可以是各类常用于光学投影、能够发送控制指令的处理器、服务器等具备计算功能的芯片、模块、单元、装置和/或设备，进一步地，所述控制器22还可以具有与外界的通信功能和/或接受用户手势动作或指令等投影设备通常具有的计算和/或控制功能等，具体地，可根据实际需要选择相应的控制器22，不需要拘泥于本申请实施例的限定。
进一步地，在一些实施例中，请继续参见图4，所述投影光学系统20还包括：第一驱动装置23，其分别与所述控制器22和所述分光装置10连接，用于根据所述控制器22下发的控制指令驱动所述分光装置10进行旋转；其中，所述分光装置10配置为在旋转至第一角度时，实现所述第一光束L1的反射出射，所述分光装置10配置为在旋转至第二角度时，实现所述第二光束L2的透射出射。需要说明的是，所述分光装置10在进行旋转时，其旋转中心可以是所述分光装置10的圆盘中心，或者，还可以是在所述分光装置10的圆周上，其旋转方向可以是顺时针的，也可以是逆时针的，具体地，可根据实际需要进行设置，不需要 拘泥于本申请实施例的限定。
需要说明的是，所述第一驱动装置23可以是采用机械的方式分别驱动所述分光装置10，也可以是采用软件驱动的方式驱动所述分光装置10，或者，还可以是采用软硬结合的方式驱动所述分光装置10，例如，可以采用伺服/马达/电机驱动，或者，通过所述控制器22与服务器/系统/电子设备等有线/无线连接的方式实现软件驱动，或者，采用开关管/开关电路驱动等，具体地，可根据实际需要进行设置，不需要拘泥于本申请实施例的限定。
本申请实施例中提供了一种分光装置及投影光学系统，该分光装置在俯视方向上为圆盘形，在俯视方向上所述分光装置包括两个镜片区域，其中，所述两个镜片区域包括反射区域和透射区域，所述反射区域用于反射第一光束，所述透射区域用于透射第二光束，所述第一光束和所述第二光束为能够分别形成两幅单独画面的复合光，本申请实施例提供的分光装置能够实现两种不同的复合光的同时或分时出射，以形成两幅单独画面的图像。
需要说明的是，以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；在本申请的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本申请的不同方面的许多其它变化，为了简明，它们没有在细节中提供； 尽管参照前述实施例对本申请进行了详细的说明，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申请各实施例技术方案的范围。

Claims (10)

  1. 一种分光装置，其特征在于，所述分光装置在俯视方向上为圆盘形，在俯视方向上所述分光装置包括两个镜片区域，其中，
    所述两个镜片区域包括反射区域和透射区域，所述反射区域用于反射第一光束，所述透射区域用于透射第二光束，所述第一光束和所述第二光束为能够分别形成两幅单独画面的复合光。
  2. 根据权利要求1所述的分光装置，其特征在于，
    所述两个镜片区域在俯视方向上等面积设置。
  3. 根据权利要求2所述的分光装置，其特征在于，
    所述反射区域镀设有用于反射所述第一光束的高反膜。
  4. 根据权利要求3所述的分光装置，其特征在于，
    所述透射区域设置有用于透射所述第二光束的增透膜。
  5. 根据权利要求3所述的分光装置，其特征在于，
    所述透射区域为挖空设置。
  6. 根据权利要求4或5任一项所述的分光装置，其特征在于，
    所述分光装置由H-K9L无色光学玻璃制成。
  7. 一种投影光学系统，其特征在于，包括：
    图像生成单元，用于输出图像光束，其中，所述成像光束包括所述 第一光束和所述第二光束；以及，
    如上述权利要求1-6任一项所述的分光装置，所述分光装置配置为通过所述反射区域反射所述第一光束，通过所述透射区域透射所述第二光束。
  8. 根据权利要求7所述的投影光学系统，其特征在于，所述投影光学系统还包括：
    控制器，其分别与所述图像生成单元和所述分光装置连接，用于分时序控制所述图像生成单元所出射的图像光束和所述分光装置的出光；其中，
    所述控制器配置为在控制所述图像生成单元出射第一光束时仅控制所述分光装置的反射区域出光，以使所述第一光束反射出射，
    所述控制器配置为在控制所述图像生成单元出射第二光束时仅控制所述分光装置的透射区域出光，以使所述第二光束透射出射。
  9. 根据权利要求8所述的投影光学系统，其特征在于，所述投影光学系统还包括：
    第一驱动装置，其分别与所述控制器和所述分光装置连接，用于根据所述控制器下发的控制指令驱动所述分光装置进行旋转；其中，
    所述分光装置配置为在旋转至第一角度时，实现所述第一光束的反射出射，
    所述分光装置配置为在旋转至第二角度时，实现所述第二光束的透射出射。
  10. 根据权利要求9所述的投影光学系统，其特征在于，
    所述图像生成单元为DLP显示芯片或者LCOS显示芯片。
PCT/CN2021/083352 2020-12-28 2021-03-26 一种分光装置及投影光学系统 WO2022141846A1 (zh)

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