WO2015117287A1 - 一种互动显示系统 - Google Patents

一种互动显示系统 Download PDF

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Publication number
WO2015117287A1
WO2015117287A1 PCT/CN2014/073880 CN2014073880W WO2015117287A1 WO 2015117287 A1 WO2015117287 A1 WO 2015117287A1 CN 2014073880 W CN2014073880 W CN 2014073880W WO 2015117287 A1 WO2015117287 A1 WO 2015117287A1
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WO
WIPO (PCT)
Prior art keywords
monitoring
infrared light
interactive
infrared
lens
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PCT/CN2014/073880
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English (en)
French (fr)
Inventor
那庆林
黄彦
麦浩晃
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神画科技（深圳）有限公司
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Publication of WO2015117287A1 publication Critical patent/WO2015117287A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0386—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry for light pen
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/48—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus
    • G03B17/54—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with projector
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0308—Detection arrangements using opto-electronic means comprising a plurality of distinctive and separately oriented light emitters or reflectors associated to the pointing device, e.g. remote cursor controller with distinct and separately oriented LEDs at the tip whose radiations are captured by a photo-detector associated to the screen

Definitions

  • the present invention relates to display systems, and more particularly to an interactive display system.
  • the technical problem to be solved by the present invention is to provide an interactive display system for realizing human-computer interaction.
  • the technical solution adopted by the present invention to solve the technical problem is to construct an interactive display system, including a monitoring device, and an infrared light source for forming an infrared spot in the display screen;
  • the monitoring device includes each other Dynamic module and interactive control unit;
  • the interaction module includes a monitoring lens that captures the display screen, a beam splitting element disposed at a rear portion of the monitoring lens for separating visible light and infrared light, and a visible light monitoring component and infrared light that cooperate with the light splitting element Light monitoring component;
  • the visible light picture captured by the monitoring lens is imaged onto the visible light monitoring element through the light splitting element to form a first imaging picture
  • the infrared light spot captured by the monitoring lens is imaged onto the infrared light monitoring component through the light splitting element to form a second imaging image;
  • the interactive control unit is connected to the visible light monitoring component and the infrared light monitoring component, and outputs position information of the infrared spot.
  • the interactive display system of the present invention further includes a display unit for generating the display screen based on the received display information, and the interactive control unit outputs position information of the infrared spot to the display unit.
  • the display unit is a flat panel display unit, and the infrared light source is externally disposed on the flat panel display unit.
  • the display unit may also be a projector, which is an independent device or integrated in the same housing with the infrared light source; the projector includes a projector body and a projection lens;
  • the projection lens includes at least one lens group that is movable, and light emitted by the projector body is emitted through at least one of the projection lenses and forms the display image on a screen.
  • the monitoring device is added to the projector; the monitoring device further includes a focusing device for driving at least one of the projection lenses to move;
  • the focusing device comprises a focusing control unit and a focusing motor connected to the visible light monitoring component;
  • the focus control unit sends a control signal to the focus motor, the focus motor being coupled to at least one of the projection lenses and capable of moving it.
  • the viewing angle of the monitoring lens is greater than or equal to the angle of view of the projection lens.
  • the infrared light monitoring element and the visible light monitoring element are of the same type.
  • the spectroscopic element includes a spectroscopic sheet that reflects infrared light and transmits visible light.
  • the spectroscopic element comprises two mutually orthogonal rectangular prisms, and the bonding surfaces of the two right-angle prisms are provided with a beam splitting film.
  • the spectroscopic film comprises an optical film that reflects infrared light and transmits visible light.
  • the display unit outputs infrared according to the display unit
  • the position information of the spot shows the corresponding visible icon.
  • the infrared light source comprises an infrared laser light source or an LED infrared light source.
  • the technical solution of the present invention has at least the following beneficial effects:
  • the first imaging picture is imaged on the visible light monitoring component
  • the second imaging picture is imaged on the infrared light monitoring component.
  • the area and size of the two imaging images on the two monitoring elements are completely identical, and the interactive control unit will image the two images. By superimposing, you can quickly calculate the position information of the infrared spot.
  • FIG. 1 is a schematic structural view of a first embodiment of an interactive display system of the present invention
  • FIG. 2 is a schematic structural view of a second embodiment of the interactive display system of the present invention.
  • FIG. 3 is a schematic structural diagram of an interactive module of the interactive display system of the present invention.
  • Figure 1 shows an embodiment 1 of the present invention
  • An interactive display system that can be used in people's learning life, which can include a display unit, an infrared light source 7 And monitoring devices.
  • the display unit is configured to generate a display screen according to the received display information.
  • the display unit is a projector, and the projector can generate a projection screen 8 on the screen, that is, the above display screen.
  • the infrared light source 7 can be externally integrated or integrated into the same housing as the projector. In this embodiment, an external infrared light source is preferably used.
  • the infrared light emitted by the infrared light source 12 forms an infrared spot 10 in the display screen.
  • the infrared light source 7 There are many choices, such as infrared laser light source, LED infrared light source 7 and so on.
  • the monitoring device is disposed at a position facing the projection screen 8 for capturing visible light 11 and infrared light spot 10 .
  • the projector may include a projector body 1 and a projection lens 2 .
  • Projector body 1 emits light through the projection lens 2
  • At least one of the lens groups is ejected and a projection screen is formed on the screen 8 .
  • set on the projection lens 2 The number of groups in the lens group can be differently matched according to different specifications of the actual product. In general, there are two groups of lens groups.
  • the projection lens 2 It can also be an aspherical reflective ultra-short-focus lens.
  • the monitoring device can include an interactive module, an interactive control unit, and a focusing device.
  • the interactive module is used to calculate the position information of the infrared spot 10
  • the interactive control unit is configured to output the position information of the infrared spot 10 to the projector.
  • the focusing device is used to drive at least one lens group in the projection lens 2 to move.
  • the interactive module may include a monitoring lens 3, a beam splitting component 4, a visible light monitoring component 5, and an infrared light monitoring component. 6 .
  • the monitoring lens 3 captures the projection screen 8 of the projector, and the monitoring lens 3 projects a monitoring screen 9 greater than or equal to the projection screen 8 , and accordingly, the monitoring lens 3
  • the angle of view is greater than or equal to the angle of view of the projection lens 2.
  • the splitting element 4 is placed at the rear of the monitor lens 3 to separate the visible light 11 from the infrared light 12 to monitor the lens 3
  • the captured visible light projection image is imaged onto the visible light monitoring element 5 to form a first imaging picture.
  • Surveillance lens 3 Captured infrared spot 10 Imaging to infrared light monitoring element 6
  • a second imaging picture is formed thereon.
  • the infrared light monitoring component 6 and the visible light monitoring component 5 It is possible to use the same type of chip or different types of chips. In this embodiment, preferably, the same type of chip is used, and both the visible light monitoring component 5 and the infrared light monitoring component 6 can be CMOS or CCD.
  • the visible light monitoring component 5 and the infrared light monitoring component 6 are all connected with the interactive control unit, and the interactive control unit superimposes the first imaging image and the second imaging image to analyze and calculate the infrared spot 10
  • the position information is output to the projector, and the position information of the infrared spot 10 is output to the projector, and the projector displays the visible icon at the position of the infrared spot 10 on the projection screen 8 after the information processing.
  • the light splitting element 4 may include two right-angled prisms bonded to each other, and the splitting film 13 is provided on the bonding faces of the two right-angle prisms.
  • Beam splitting film 13 It is used to separate the visible light 11 from the infrared light 12 so that the visible light 11 and the infrared light 12 can be respectively sent to the corresponding monitoring elements. It can be understood that the beam splitting film 13 can be divided into reflected infrared light 12 An optical film that transmits visible light 11 or an optical film that reflects visible light 11 and transmits infrared light.
  • the visible light monitoring element 5 and the infrared light monitoring element 6 are respectively disposed at the rear end and the left side of the light splitting element 4 /
  • the beam splitting film 13 is an optical film that reflects infrared light and 12 transmits visible light 11
  • the visible light monitoring element 5 is disposed at the rear end of the light splitting element 4
  • the infrared light monitoring element 6 is disposed at the light splitting element. 4 left / right end.
  • the beam splitting film 13 is an optical film that reflects visible light 11 and transmits infrared light 12
  • the infrared light monitoring element 6 is disposed at the rear end of the light splitting element 4, and the visible light monitoring element 5 It is arranged at the left/right end of the beam splitting element 4.
  • the beam splitting film 13 preferably reflects infrared light 12 and transmits visible light 11
  • the optical film is arranged such that the visible light monitoring element 5 is disposed at the rear end of the light splitting element 4, and the infrared light monitoring element 6 is disposed at the left/right end of the light splitting element 4.
  • the light splitting element 4 In some embodiments, it can be a beam splitter, and the principle of operation is the same as using two mutually bonded right-angle prisms. In some embodiments, the advantage of using a beam splitter is that the structure is simple and easy to replace.
  • the focusing device may include a focusing control unit and a focusing motor, and the focusing control unit is electrically connected to the focusing motor.
  • the focus control unit may employ a CPU processor in some embodiments.
  • the focusing control unit analyzes the visible light monitoring component The first imaging picture on the 5 and a control signal is sent to the focus motor, and the focus motor is connected to at least one lens group of the projection lens 2 and can be moved forward and backward.
  • the first imaging picture is the visible light projection picture in the visible light monitoring element 5
  • the image is formed by the focus control unit. If the projection screen 8 is not clear, the image of the visible light projection screen is not clear. At this time, the focus control unit issues a focus command to drive the focus motor to make the projection.
  • Lens 2 At least one of the lens groups moves back and forth until the visible image on the visible light monitoring element 5 is clear.
  • the optical axis of the visible light 11 entering the monitoring lens 3 and refracted by the beam splitting element 4 and the projection lens 2 The optical axis of the emitted light is coaxial, and the optical characteristics of the projection lens 2 and the monitoring lens 3 ensure that the focusing device moves back and forth at least one of the lens groups driving the projection lens 2 so that the visible light monitoring element 5
  • the projection lens 2 also synchronizes the focus of the projection picture 8 to be clear.
  • Embodiment 2 shows an interactive display system in Embodiment 2 of the present invention, which can also include a display unit and an infrared light source. And monitoring devices.
  • the display unit in Embodiment 2 is a flat panel display unit 14 That is, a large-sized flat panel display that is common in our daily life, and the like, can produce a flat panel display image by itself.
  • the infrared light source 7 is externally placed on the flat panel display unit 14, and the monitoring device is facing the flat panel display unit 14 Flat panel display settings.
  • the structure of the infrared light source 7 is consistent with the structure in the embodiment 1, the monitoring device includes an interactive module, and the structure and embodiment of the interactive module 1
  • the structure is consistent, wherein the interactive control unit is connected to the visible light monitoring component 5 and the infrared light monitoring component 6.
  • the interactive control unit superimposes the first imaging image and the second imaging image to analyze and calculate the infrared spot. 10 position information, and output the position information of the infrared spot 10 to the flat panel display unit 14, and the infrared light spot on the flat panel display screen after the flat panel display unit 14 performs information processing.
  • a visible icon is displayed at the location.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
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Abstract

一种互动显示系统，其包括红外光源和监控装置；监控装置包括互动模组和互动控制单元；互动模组包括监控镜头、分光元件、可见光监控元件和红外光监控元件；监控镜头捕捉到的可见光投影画面成像到可见光监控元件上形成第一成像画面；监控镜头捕捉到的红外光斑成像到红外光监控元件上形成第二成像画面；互动控制单元与可见光监控元件、红外光监控元件连接，并向显示单元输出红外光斑的位置信息，显示单元根据红外光斑的位置信息显示相应的可见图标，则可见图标可实现点击、拖动、放大缩小等操作，以实现人机交互的功能。

Description

一种互动显示系统 技术领域
本发明涉及显示系统，特别是涉及一种互动显示系统。
背景技术
在人们的学习、工作和生活中经常会运用到投影机或大尺寸的平板显示器，但随着科技的发展，在使用的过程人机交互的需求变得越来越强烈。传统的人机交互的方式是使用激光笔对显示画面进行指示，但所指向的显示系统无法得知该指示图标的位置坐标，也无法实现指示图标的点击、拖动、放大缩小等操作。
发明内容
本发明要解决的技术问题
本发明要解决的技术问题在于提供一种 实现人机交互的互动显示系统 。
本发明解决其技术问题所采用的技术方案是：构造一种互动显示系统，包括监控装置，以及用于在显示画面内形成红外光斑的红外光源；所述监控装置包括互 动模组和互动控制单元；
所述互动模组包括对所述显示画面进行捕捉的监控镜头、设置在该监控镜头后部的用于将可见光和红外光分开的分光元件、以及与所述分光元件配合的可见光监控元件和红外光监控元件；
所述监控镜头捕捉到的可见光画面经所述分光元件后成像到所述可见光监控元件上形成第一成像画面；
所述监控镜头捕捉到的红外光斑经所述分光元件后成像到所述红外光监控元件上形成第二成像画面；
所述互动控制单元与可见光监控元件、红外光监控元件连接，并输出红外光斑的位置信息。
本发明的互动显示系统中，还包括用于根据接收到的显示信息产生所述显示画面的显示单元，所述互动控制单元向所述显示单元输出红外光斑的位置信息。
本发明 的互动显示系统 中 ， 所述显示单元是平板显示单元，所述红外光源外置于所述平板显示单元。
本发明 的互动显示系统 中 ， 所述显示单元还可以是投影机，所述投影机为独立装置或与所述红外光源集成于同一壳体内；所述投影机包括投影机主体和投影镜头；
所述投影镜头包括可移动的至少一个镜片组，所述投影机主体发出的光经所述投影镜头中的至少一个镜片组后射出并在屏幕上形成所述的显示画面。
本发明 的互动显示系统 中 ， 所述监控装置加设在所述投影机上；所述监控装置还包括 用于驱动所述投影镜头中的至少一个镜片组 进行 移动的调焦装置；
所述调焦装置包括 与所述 可见光监控元件 连接的 调焦控制单元 、 调焦马达 ； 所述调焦控制单元向所述调焦马达发出控制信号，所述调焦马达与所述投影镜头中的至少一个镜片组连接并可带动其 进行 移动 。
本发明 的互动显示系统 中 ，所述监控镜头的视场角大于或等于所述投影镜头的视场角 。
本发明 的互动显示系统 中 ，所述红外光监控元件与所述可见光监控元件为同一型号。
本发明 的互动显示系统 中 ，所述分光元件 包括反射 红外光 、 透可见光的分光片。
本发明 的互动显示系统 中 ，所述分光元件包括两块相互粘接的直角棱镜，所述两个直角棱镜的粘接面上设有分光膜 ， 所述分光膜 包括 反 射 红外光 、 透可见光的光学薄膜。
本发明 的互动显示系统 中 ， 所述显示单元根据所述显示单元输出红外 光斑的位置信息显示相应的可见图标。
本发明 的互动显示系统 中 ，所述红外光源包括红外激光光源或 LED 红外光源。
实施本发明的技术方案，至少具有以下有益效果： 可见光监控元件上成像有第一成像画面，红外光监控元件上成像有第二成像画面，两成像画面在两监控元件上的区域与大小完全一致，互动控制单元 将 两成像画面 进行叠加，就能很快算出红外光斑的位置 信息 ，
并向所述显示单元输出该红外光斑的位置信息，所述显示单元进行信息处理后在显示画面上的红外光斑的位置处显示可见图标，这样就能实现可见图标的点击、拖动、放大缩小等操作，即用户进行人机交互的操作非常的方便。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图 1 是 本发明的互动显示系统的第一实施例的结构示意图；
图 2 是 本发明的互动显示系统的第二实施例的结构示意图；
图 3 是 本发明的互动显示系统的互动模组的结构示意图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
图 1 示出了本发明的实施例 1 中的互动显示系统，该互动显示系统可用于人们的学习生活中，其可包括显示单元、红外光源 7 以及监控装置。显示单元用于根据接收到的显示信息产生显示画面，本实施例中，显示单元为投影机，投影机能 在屏幕上 产生投影画面 8 ，即上述的显示画面。
红外光源 7 可采用外置的方式也可以与投影机集成于同一壳体内，本实施例中优选地采用外置的 红外光源 7 ，该红外光源 7 发出的红外光 12 在显示画面内形成一个红外光斑 10 ，另外，为了得到一个清晰的红外光斑 10 ，红外光源 7 的选择有很多种，例如，红外激光光源、 LED 红外光源 7 等。监控装置设置在正对投影画面 8 的位置，用于捕捉可见光11 和红外光斑 10 。
投影机可包括投影机主体 1 和投影镜头 2 。投影机主体 1 发出的光经投影镜头 2 中的至少一个镜片组后射出并 在屏幕上 形成投影画面 8 。可以理解地，设置在投影镜头 2 中的镜头组的组数可以根据实际产品的不同规格来进行不同的搭配，一般情况下，镜头组设置有两组。另外，除了常用的投影镜头 2 外，投影镜头 2 还可为非球面反射式超短焦镜头。
监控装置可包括互动模组 、互动控制单元 和调焦装置。互动模组用于计算出红外光斑 10 的位置信息， 互动控制单元用于 向投影机输出该红外光斑 10 的位置信息。调焦装置用于驱动投影镜头 2 中的至少一个镜片组进行移动。
如图 3 所示，互动模组可包括监控镜头 3 、分光元件 4 、可见光监控元件 5 以及 红外光监控元件 6 。监控镜头 3 对投影机的投影画面 8 进行 捕捉 ， 且 该监控镜头 3 投射出一个大于或等于投影画面 8 的监控画面 9 ， 相应地 ，该监控镜头 3 的视场角大于或等于投影镜头 2 的视场角。
分光元件 4 设置在监控镜头 3 后部 用于将可见光 11 和红外光 12 分开 ，监控镜头 3 捕捉到的可见光投影画面成像到可见光监控元件 5 上形成第一成像画面。监控镜头 3 捕捉到的红外光斑 10 成像到红外光监控元件 6 上形成第二成像画面。
在一些实施例中，该红外光监控元件 6 与该可见光监控元件 5 可以采用同一型号的芯片，也可以采用不同型号的芯片。本实施例中优选地两者采用同一型号的芯片，可见光监控元件 5 和红外光监控元件 6 均可为 CMOS 或 CCD 。可见光监控元件 5 、红外光监控元件 6 均与 互动控制单元连接，互动控制单元将第一成像画面和第二成像画面进行叠加后分析计算出红外光斑 10 的位置信息，并向投影机输出红外光斑 10 的位置信息，投影机进行信息处理后在投影画面 8 上的红外光斑 10 的位置处显示可见图标。
分光元件 4 可包括两块相互粘接的直角棱镜，两个直角棱镜的粘接面上设有分光膜 13 。分光膜 13 用于将可见光 11 和红外光 12 分开，这样可见光 11 和红外光 12 才能分别送到相对应的监控元件上。可以理解地，分光膜 13 可分为反射红外光 12 、透可见光 11 的光学薄膜或反射可见光 11 、透红外光 12 的光学薄膜。
一般地，都是将可见光监控元件 5 和红外光监控元件 6 分别布置在分光元件 4 的后端和左 / 右端，则当分光膜 13 为反射红外光、 12 透可见光 11 的光学薄膜时，可见光监控元件 5 布置在分光元件 4 的后端，红外光监控元件 6 布置在分光元件 4 的左 / 右端。当分光膜 13 为反射可见光 11 、透红外光 12 的光学薄膜时，红外光监控元件 6 布置在分光元件 4 的后端，可见光监控元件 5 布置在分光元件 4 的左 / 右端。
本实施例中，分光膜 13 优选地为反射红外光 12 、透可见光 11 的光学薄膜，则监控元件的布置方式为可见光监控元件 5 布置在分光元件 4 的后端，红外光监控元件 6 布置在分光元件 4 的左 / 右端。另外，分光元件 4 在一些实施例中可为分光片，工作原理与采用两块相互粘接的直角棱镜是一样的。在一些实施例中，采用分光片的优点在于结构简单，便于更换。
调焦装置可包括调焦控制单元及调焦马达，该调焦控制单元与该调焦马达电性连接。调焦控制单元在一些实施例中可以采用 CPU 处理器。该调焦控制单元分析可见光监控元件 5 上的第一成像画面，并向调焦马达发出控制信号，调焦马达与投影镜头 2 中的至少一个镜片组连接并可带动其前后移动。
第一成像画面即可见光 投影画面 在可见光监控元件 5 上成的像，调焦控制单元对成的像进行分析，如果投影画面 8 不清晰，可见光 投影画面 成的像也不清晰，这时调焦控制单元发出调焦指令，驱动调焦马达使投影镜头 2 中的至少一个镜片组前后移动，直至可见光 投影画面 在可见光监控元件 5 上成的像清晰为止。
另外，进入监控镜头 3 内并经分光元件 4 折射后的可见光 11 的光轴与经投影镜头 2 发出的光的光轴同轴，且投影镜头 2 和监控镜头 3 的光学特性可确保该调焦装置在驱动投影镜头 2 中的至少一个镜片组前后移动使得可见光监控元件 5 上 的第一成像画面聚焦清晰时，投影镜头 2 也同步实现 投影画面 8 的 聚焦清晰。
图 2 示出了本发明的实施例 2 中的互动显示系统，该互动显示系统同样可包括显示单元、红外光源 7 以及监控装置。但与实施例 1 的区别在于，实施例 2 中的显示单元为平板显示单元 14 ，即我们日常生活中常见的大尺寸的平板显示器等，其自身就能够产生一平板显示画面。红外光源 7 外置于平板显示单元 14 ， 且 监控装置正对平板显示单元 14 的平板显示画面设置。
红外光源 7 的结构与实施例 1 中的结构保持一致，监控装置包括互动模组，互动模组的结构与实施例 1 中的结构保持一致，其中，互动控制单元与可见光监控元件 5 、红外光监控元件 6 连接，互动控制单元将第一成像画面和第二成像画面进行叠加后分析计算出红外光斑 10 的位置信息，并向平板显示单元 14 输出红外光斑 10 的位置信息，平板显示单元 14 进行信息处理后在平板显示画面上的红外光斑 10 的位置处显示可见图标。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改、组合和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (11)

1 、一种互动显示系统 ，其特征在于，包括监控装置，以及用于在显示画面内形成红外光斑的红外光源；
所述监控装置包括互动模组和互动控制单元；
所述互动模组包括对显示画面进行捕捉的监控镜头、设置在该监控镜头后部的用于将可见光和红外光分开的分光元件、以及与所述分光元件配合的可见光监控元件和红外光监控元件；所述监控镜头捕捉到的可见光画面经所述分光元件后成像到所述可见光监控元件上形成第一成像画面；所述监控镜头捕捉到的红外光斑经所述分光元件后成像到所述红外光监控元件上形成第二成像画面；
所述互动控制单元与可见光监控元件、红外光监控元件连接，并输出红外光斑的位置信息。
2 、根据权利要求 1 所述的互动显示系统，其特征在于，还包括用于根据接收到的显示信息产生所述显示画面的显示单元，所述互动控制单元向所述显示单元输出红外光斑的位置信息。
3 、 根据权利要求 2 所述的互动显示系统，其特征在于， 所述显示单元是平板显示单元，所述红外光源外置于所述平板显示单元。
4 、根据权利要求 2 所述的互动显示系统，其特征在于，所述显示单元是投影机，所述投影机为独立装置或与所述红外光源集成于同一壳体内；所述投影机包括投影机主体和投影镜头；所述投影镜头与所述监控镜头并列设置；所述投影镜头包括可移动的至少一个镜片组，所述投影机主体发出的光经所述投影镜头中的至少一个镜片组后射出并在屏幕上形成所述的显示画面。
5 、根据权利要求 4 所述的互动显示系统，其特征在于，所述监控装置加设在所述投影机上；所述监控装置还包括用于驱动所述投影镜头中的至少一个镜片组进行移动的调焦装置；所述调焦装置包括与所述可见光监控元件连接的调焦控制单元、调焦马达；所述调焦控制单元向所述调焦马达发出控制信号，所述调焦马达与所述投影镜头中的至少一个镜片组连接并可带动其进行移动。
6 、根据权利要求 5 所述的互动显示系统，其特征在于，所述监控镜头的视场角大于或等于所述投影镜头的视场角。
7 、根据权利要求 5 所述的互动显示系统，其特征在于，所述红外光监控元件与所述可见光监控元件为同一型号。
8 、根据权利要求 1 所述的互动显示系统，其特征在于，所述分光元件包括反射红外光、透可见光的分光片。
9 、根据权利要求 1 所述的互动显示系统，其特征在于，所述分光元件包括两块相互粘接的直角棱镜，所述两个直角棱镜的粘接面上设有分光膜，所述分光膜包括反射红外光、透可见光的光学薄膜。
10 、根据权利要求 2 所述的互动显示系统，其特征在于，所述显示单元根据所述显示单元输出红外光斑的位置信息显示相应的可见图标。
11 、根据权利要求 1 所述的互动显示系统，其特征在于，所述红外光源包括红外激光光源或 LED 红外光源。
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