WO2012083525A1 - Image projection apparatus - Google Patents

Image projection apparatus Download PDF

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Publication number
WO2012083525A1
WO2012083525A1 PCT/CN2010/080054 CN2010080054W WO2012083525A1 WO 2012083525 A1 WO2012083525 A1 WO 2012083525A1 CN 2010080054 W CN2010080054 W CN 2010080054W WO 2012083525 A1 WO2012083525 A1 WO 2012083525A1
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WO
WIPO (PCT)
Prior art keywords
image
eye image
projection
right eye
polarizing plate
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Application number
PCT/CN2010/080054
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French (fr)
Chinese (zh)
Inventor
孙会
班春迎
李聃
Original Assignee
海尔集团公司
海尔集团技术研发中心
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Application filed by 海尔集团公司, 海尔集团技术研发中心 filed Critical 海尔集团公司
Priority to PCT/CN2010/080054 priority Critical patent/WO2012083525A1/en
Publication of WO2012083525A1 publication Critical patent/WO2012083525A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques

Definitions

  • the present invention relates to an image projection apparatus, and more particularly to an image projection apparatus that can switch between three-dimensional projection and two-dimensional projection.
  • Fig. 1 is a schematic view of a person's left and right eyes when observing an object.
  • the left eye 11 and the right eye 12 of the human since the angles of the objects observed by the left eye 11 and the right eye 12 of the human are slightly different, the left eye 11 and the right eye 12 form a line of sight angle ⁇ when the object 0 is observed, and the angle of the line of sight may cause left and right eyes.
  • the eyes will see different images.
  • Fig. 2 is a schematic view showing an image obtained by observing the object shown in Fig. 1 by the left eye and the right eye of the person. Referring to FIG. 2, the human left eye 11 observes the image 101, and the human right eye 12 observes the image 102.
  • the image 101 and the image 102 are transmitted to the brain through the left and right eyes of the person, and the brain pairs the images 101, 102. The difference is judged, and the distance of the object 0 can be felt, thereby generating stereoscopic vision.
  • the three-dimensional display technology uses this principle to separate the images seen by the left and right eyes.
  • the three-dimensional display technology can be divided into two types: glasses type and eye type. Among them, the polarized type stereo image projection device is a glasses type stereo display. A kind of technology.
  • the existing polarized stereoscopic image projection device can generally only be used to project three-dimensional images, and the user needs to wear a polarized eye to observe the three-dimensional image. Although the three-dimensional image can achieve a realistic display effect, it is also easy to cause fatigue. If the user wants to change to view the two-dimensional image due to physical discomfort when viewing the three-dimensional image, the projection device needs to be replaced, which is not only troublesome to operate, but also increases the use cost of the projection device, resulting in waste of resources.
  • the present invention provides an image projection apparatus that can switch between three-dimensional projection and two-dimensional projection.
  • the present invention provides an image projecting device comprising a light source, a lens, an image forming unit, a variable deflecting device, a polarizing plate, a projection lens, and a moving reset mechanism.
  • the lens concentrates the light from the source.
  • the image forming unit is adapted to receive light emitted by the light source and concentrated by the lens and form a left Eye image and right eye image.
  • the variable deviation device passes through the left eye image and the right eye image, and causes the polarization directions of the left eye image and the right eye image to be different from each other.
  • the polarization direction of the polarizing plate is the same as the polarization direction of one of the left eye image and the right eye image, and the polarizing plate is located at the first position on the projection path of the left eye image and the right eye image.
  • the projection lens is adapted to magnify the left eye image and the right eye image onto the screen.
  • the light source, the lens, the image forming unit, the deflecting device, and the polarizing plate and the projection lens in the first position are sequentially arranged.
  • the moving reset mechanism is fixedly coupled to the polarizing plate and located on one side of the projection path of the left eye image and the right eye image, and is adapted to send or transport the polarizing plate to the first position.
  • the light source, the lens, the image forming unit, and the variable deflection device are arranged in parallel with each other in parallel with the projection lens.
  • the image projection apparatus further includes a control system, and the control system is coupled to the movement reset mechanism, and is adapted to control movement of the movement reset mechanism to send or drop the polarizer to the first position.
  • the image forming unit includes a first polarizing plate, a liquid crystal display component, and a second polarizing plate, which are sequentially arranged, and the liquid crystal display component has alternately arranged left-eye pixels and right-eye pixels, and the left eye.
  • the pixels are adapted to form a left eye image
  • the right eye pixels are adapted to form a right eye image, the polarization direction of the first polarizer being perpendicular to the polarization direction of the second polarizer.
  • variable deflection device is a liquid crystal module
  • the liquid crystal module has a first variation portion and a second variation portion arranged alternately, and the first variation portion corresponds to the left eye pixel,
  • the second variator corresponds to the right eye pixel, and the polarization directions of the left eye image and the right eye image are different from each other after passing through the polarization device.
  • variable deviation device is a phase retarder
  • the phase retarder adjusts a polarization state of one of the left eye image and the right eye image such that the polarization directions of the left eye image and the right eye image are mutually Not the same.
  • the present invention also provides an image projection apparatus comprising two image projection units, a polarizing plate and a movement reset mechanism.
  • Each image projection unit includes a light source, a lens, an image forming unit, and a projection lens which are sequentially arranged.
  • the lens concentrates the light from the source.
  • the image forming unit is adapted to receive light emitted by the light source and concentrated by the lens and form an image.
  • the projection lens is adapted to magnify the left eye image and the right eye image onto the screen.
  • the image forming units of the two image projecting units respectively form a left eye image and a right eye image, and the polarization directions of the left eye image and the right eye image are different from each other.
  • Polarization direction of the polarizer and left eye image The polarization direction is the same as one of the right eye images, and the polarizing plate is located at the first position on the projection path of the left eye image and the right eye image.
  • the polarizing plate in the first position is disposed between the image forming unit of each image projecting unit and the projection lens.
  • the moving reset mechanism is fixedly coupled to the polarizing plate and located on one side of the projection path of the left eye image and the right eye image, and is adapted to send or transport the polarizing plate to the first position.
  • the light source, the lens, the image forming unit, and the projection lens of each of the image projecting units are sequentially arranged in parallel.
  • the image projection apparatus further includes a control system, the control system being coupled to the movement reset mechanism, adapted to control movement of the movement reset mechanism to send or drop the polarizer to the first position.
  • the image forming unit of each image projection unit includes a first polarizing plate, a liquid crystal display component, and a second polarizing plate, which are sequentially arranged, wherein one liquid crystal display component is adapted to form a left eye image.
  • Another liquid crystal display assembly is adapted to form a right eye image, the polarization direction of the first polarizer being perpendicular to the polarization direction of the second polarizer.
  • the polarization direction of the polarizing plate is the same as the polarization direction of one of the left eye image and the right eye image.
  • the polarizing plate is located at a first position on the projection path of the left eye image and the right eye image, and the moving reset mechanism can send or send the polarizing plate to the first position, so the image projecting device of the invention can realize the projection in the three-dimensional image Switching between 2D image projections.
  • Fig. 1 is a schematic view of a person's left and right eyes when observing an object.
  • FIG. 2 is a schematic view of an image obtained by observing the object shown in FIG. 1 by the left eye and the right eye of a person.
  • FIG. 3 is a schematic structural view of the image projecting device according to the first embodiment of the present invention in a two-dimensional projection state.
  • 4 is a schematic diagram of left-eye pixels and right-eye pixels of a liquid crystal display assembly of the image projecting device shown in FIG. 3.
  • Fig. 5 is a view showing the configuration of the image projecting device shown in Fig. 3 when it is switched to the three-dimensional projection state.
  • Fig. 6 is a view showing the configuration of an image projecting device in a two-dimensional projection state according to a second embodiment of the present invention.
  • FIG. 7 is a schematic structural view of the image projecting device shown in FIG. 6 in a three-dimensional projection state. Preferred embodiment of the invention
  • Fig. 3 is a view showing the configuration of the image projecting device of the first embodiment of the present invention in a two-dimensional projection state.
  • the image projecting device 20 of the first embodiment includes a light source 210, a lens 220, an image forming unit 230, a polarization changing device 240, a polarizing plate 250, a projection lens 260, a moving reset mechanism 270, and a control system 280.
  • the light source 210, the lens 220, the image forming unit 230, the polarization changing device 240, the polarizing plate 250 and the projection lens 260 are sequentially arranged, and the centers of the above elements are located on the same straight line, and the polarizing plate 250 is located at the first position.
  • the light source 210, the lens 220, the image forming unit 230, and the polarization changing device 240, the polarizing plate 250 in the first position and the projection lens 260 are sequentially arranged in parallel.
  • the movement reset mechanism 270 is fixedly coupled to the end of the polarizer 250, and the control system 280 is coupled to the movement reset mechanism 270 for controlling the movement of the reset mechanism 270 to transport the polarizer 250 away or to the first position.
  • the light source 210 includes a light emitting portion 212 and a reflecting portion 213, and light emitted from the light emitting portion 212 is reflected by the reflecting portion 213 to be incident on the lens 220.
  • Lens 220 is a focusing lens that collects light from source 210.
  • the image forming unit 230 is adapted to receive the light emitted by the light source 210 and thereby form an image.
  • the image forming unit 230 includes a first polarizing plate 232 and a liquid crystal display component 233 which are sequentially arranged.
  • the second polarizing plate 234, the polarization direction of the first polarizing plate 232 is perpendicular to the polarization direction of the second polarizing plate 234.
  • 4 is a schematic diagram of left-eye pixels and right-eye pixels of a liquid crystal display assembly of the image projecting device shown in FIG. 3. Referring to FIG. 4, the liquid crystal display assembly 233 has left-eye pixels 235 and right-eye pixels 236 that are alternately disposed.
  • a voltage set according to a signal of the left and right eye images is applied to the liquid crystal display assembly 233 such that the left eye pixel 235 can form a left eye image, and the right eye pixel 236 can form a right eye image.
  • the light emitted by the light source 210 is collected by the lens 220 and sequentially passes through the first polarizing plate 232, the liquid crystal display unit 233, and the second polarizing plate 234. In this manner, the image forming unit 230 alternately forms the left eye image and the right eye image polarized in the predetermined same direction.
  • the deflecting means 240 passes through the left eye image and the right eye image, and causes the polarization directions of the left eye image and the right eye image to be different from each other.
  • the variable deflection device 240 can be a liquid crystal module comprising two transparent electrode layers (not shown) and a liquid crystal molecular layer interposed between the two electrode layers (not shown; For example, when no voltage is applied between the two transparent electrode layers, the left eye image generated by the image forming unit 230 passes through the liquid crystal module along the liquid crystal molecule layer. When a voltage is applied between the transparent electrode layers, the liquid crystal molecules are rearranged, and the right eye image passes through the liquid crystal element along the aligned liquid crystal molecules.
  • the pressurization period between the transparent electrode layers is the same as the period of the left and right eye images generated by the image forming unit 230.
  • the deflecting means 240 When the deflecting means 240 is a liquid crystal module, the deflecting means 240 has a first varying portion (not shown) and a second varying portion (not shown) which are alternately arranged.
  • the first varying portion corresponds to the left-eye pixel 235 of the image forming unit 230
  • the second varying portion corresponds to the right-eye pixel 236 of the image forming unit 230.
  • the left-eye image and the right-eye image pass through the polarization changing device 240, and the polarization directions are different from each other.
  • the polarization changing device 240 may also be a phase retarder that adjusts the polarization state of one of the left eye image and the right eye image, thereby making the polarization directions of the left eye image and the right eye image different from each other.
  • the polarization direction of the polarizing plate 250 is the same as the polarization direction of one of the left eye image and the right eye image passing through the polarization changing device 240.
  • the polarizing plate 250 is located at the projection of the left eye image and the right eye image. In the first position on the path, one of the left eye image and the right eye image may pass through the polarizing plate 250.
  • the projection lens 260 is adapted to magnify the left eye image and/or the right eye image It is projected onto the screen SI.
  • the movement reset mechanism 270 and the control system 280 are located on one side of the projection path of the left eye image and the right eye image.
  • Fig. 5 is a view showing the configuration of the image projecting device shown in Fig. 3 when it is switched to the three-dimensional projection state.
  • the control system 280 controls the movement reset mechanism 270 to move to move the polarizer 250 away from the first position, e.g., to deliver the polarizer 250 to the position shown in FIG.
  • the polarization directions are different from each other, and then enlarged by the projection lens 260 to be projected onto the screen S1, and the user can view the three-dimensional shape by wearing the polarized glasses. image.
  • the control system 280 controls the movement reset mechanism 270 to move to send the polarizing plate 250 to the first position, and the left-eye image and the right-eye image generated by the image forming unit 230 are biased.
  • the polarization directions are different from each other.
  • one of the left eye image and the right eye image passes through the polarizing plate 250, and then is enlarged by the projection lens 260 to be projected onto the screen S1, and the user can see the complete image. Two-dimensional image. Therefore, the image projecting device 20 can switch between the 3D image projection and the 2D image projection.
  • Fig. 6 is a view showing the configuration of an image projecting device in a two-dimensional projection state according to a second embodiment of the present invention.
  • the image projecting device 30 of the second embodiment includes two image projecting units 300.
  • the two image projecting units 300 are arranged side by side in parallel, respectively projecting a left eye image and a right eye image, and a left eye image and a right eye image.
  • the polarization directions are different from each other.
  • Each image projection unit 300 includes a light source 310, a lens 320, an image forming unit 330, and a projection lens 340 which are sequentially arranged in parallel, and the structures and functions of the light source 310, the lens 320, and the projection lens 340 are respectively compared with the image of the first embodiment.
  • the light source 210, the lens 220, and the projection lens 260 of the projection device 20 have the same structure and function, and will not be repeatedly described herein.
  • Each of the image forming units 330 includes a first polarizing plate 332, a liquid crystal display unit 333, and a second polarizing plate 334 which are sequentially arranged.
  • One of the liquid crystal display assemblies 333 is adapted to form a left eye image and the other liquid crystal display assembly 333 is adapted to form a right eye image.
  • the polarization direction of the first polarizing plate 332 is perpendicular to the polarization direction of the second polarizing plate 334.
  • the image projecting device 30 of the second embodiment further includes a polarizing plate 350, a movement reset mechanism 360, and a control system 370.
  • the movement reset mechanism 360 is fixedly coupled to the end of the polarizer 350
  • the control system 370 is coupled to the movement reset mechanism 360
  • the reset mechanism 360 and the control system 370 is located on one side of the projection path of the left eye image and the right eye image.
  • the polarization direction of the polarizing plate 350 is the same as the polarization direction of one of the left eye image and the right eye image.
  • Control system 370 is adapted to control movement of reset mechanism 360 to move or dispose polarizer 350 to the first position.
  • FIG. 7 is a schematic structural view of the image projecting device shown in FIG. 6 in a three-dimensional projection state.
  • the control system 370 controls the movement reset mechanism 360 to move to move the polarizer 350 away from the first position, and sends the polarizer 350 to the position shown in FIG.
  • the left eye image and the right eye image respectively generated by the two image projecting units 300 are enlarged by the projection lens 340 and directly projected onto the screen S2, and the user can view the three-dimensional image by wearing the polarized glasses.
  • the control system 370 controls the movement reset mechanism 360 to move to send the polarizing plate 350 to the first position, and the two image projecting units 300 respectively generate the left eye image and the right eye image. Since the polarization direction of the polarizing plate 350 is the same as the polarization direction of one of the left eye image and the right eye image, one of the left eye image and the right eye image passes through the polarizing plate 350, and then is amplified by the projection lens 340. Projected onto the screen S2, the user can see the complete 2D image. Thus, the image projection device 30 can switch between the 3D image projection and the 2D image projection.
  • the image projecting device of the present invention has at least the following advantages:
  • An image projection apparatus comprising a polarizing plate and a moving reset mechanism fixedly coupled to the polarizing plate, the polarization direction of the polarizing plate being the same as the polarization direction of one of the left eye image and the right eye image.
  • the polarizing plate is located at a first position on a projection path of the left eye image and the right eye image.
  • the mobile reset mechanism can send or leave the polarizer to the first position.
  • the image projection device of the present invention can realize switching between three-dimensional image projection and two-dimensional image projection, and the operation steps of replacing the projection device can be omitted, and the use is convenient.
  • the image projection device of the present invention can project a three-dimensional image and a two-dimensional image.
  • the projection device does not need to be replaced, thereby reducing the investment.
  • the cost of using the video device while avoiding waste of resources.
  • the polarization direction of the polarizing plate is the same as the polarization direction of one of the left eye image and the right eye image.
  • the polarizing plate is located at a first position on the projection path of the left eye image and the right eye image, and the moving reset mechanism can send or send the polarizing plate to the first position, so the image projecting device of the invention can realize the projection in the three-dimensional image Switching between 2D image projections.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

An image projection apparatus includes a light source, a lens, an imaging unit, a polarization conversion apparatus, a polarizer, a projection lens, and a movable resetting structure. The lens collects the light emitted from the light source, and the imaging unit receives the light collected by the lens and generates left-eye image and right-eye image. Then, the left-eye image and right-eye image pass through the polarization conversion apparatus so that the polarization direction of the left-eye image and the right-eye image are different. The polarization direction of the polarizer is the same as the polarization direction of the left-eye image or the right-eye image, and the polarizer is placed on the first position along the projection path of the left-eye image and the right-eye image. The projection lens can be applied for magnifying and projecting the left-eye image and the right-eye image on the screen. The movable resetting structure is in fixed connection to the polarizer, and the polarizer is moved to or away from the first position by the movable resetting structure. The image projection apparatus has the advantage of being switchable between 2D/3D projections.

Description

图像投影装置 技术领域  Image projection device
本发明是有关于一种图像投影装置， 且特别是有关于一种可在三维投影 与二维投影间切换的图像投影装置。  The present invention relates to an image projection apparatus, and more particularly to an image projection apparatus that can switch between three-dimensional projection and two-dimensional projection.
背景技术 Background technique
图 1为人的左右眼观察物体时的示意图。 请参见图 1 , 由于人的左眼 11 和右眼 12观察物体的角度略有差异，因此左眼 11和右眼 12在观察物体 0时 而形成有视线夹角 θ , 视线夹角 Θ会造成左右眼会看到不同的影像。 图 2为 人的左眼与右眼观察图 1 所示物体而获得的影像的示意图。 请参见图 2, 人 的左眼 11观察到的是影像 101 ,而人的右眼 12观察到的是影像 102,影像 101 与影像 102经过人的左右眼传送至大脑， 大脑对影像 101、 102的差别进行判 断， 能够感觉到物体 0的远近， 从而产生立体的视觉。 三维立体显示技术正 是利用这个原理， 把左右眼所看到的影像分离， 三维立体显示技术可分为眼 镜式和棵眼式两大类， 其中， 偏光式立体图像投影装置为眼镜式立体显示技 术的一种。  Fig. 1 is a schematic view of a person's left and right eyes when observing an object. Referring to FIG. 1, since the angles of the objects observed by the left eye 11 and the right eye 12 of the human are slightly different, the left eye 11 and the right eye 12 form a line of sight angle θ when the object 0 is observed, and the angle of the line of sight may cause left and right eyes. The eyes will see different images. Fig. 2 is a schematic view showing an image obtained by observing the object shown in Fig. 1 by the left eye and the right eye of the person. Referring to FIG. 2, the human left eye 11 observes the image 101, and the human right eye 12 observes the image 102. The image 101 and the image 102 are transmitted to the brain through the left and right eyes of the person, and the brain pairs the images 101, 102. The difference is judged, and the distance of the object 0 can be felt, thereby generating stereoscopic vision. The three-dimensional display technology uses this principle to separate the images seen by the left and right eyes. The three-dimensional display technology can be divided into two types: glasses type and eye type. Among them, the polarized type stereo image projection device is a glasses type stereo display. A kind of technology.
现有的偏光式立体图像投影装置一般只能用作投影三维影像， 用户需要 佩戴偏光式眼睛才能观察到三维影像， 三维影像虽然可以实现逼真的显示效 果， 但也容易使人感到疲劳。 若用户观看三维影像时， 由于身体不适而想改 为观看二维影像， 则需要更换投影装置， 不仅操作麻烦， 还增加投影装置的 使用成本， 造成资源的浪费。  The existing polarized stereoscopic image projection device can generally only be used to project three-dimensional images, and the user needs to wear a polarized eye to observe the three-dimensional image. Although the three-dimensional image can achieve a realistic display effect, it is also easy to cause fatigue. If the user wants to change to view the two-dimensional image due to physical discomfort when viewing the three-dimensional image, the projection device needs to be replaced, which is not only troublesome to operate, but also increases the use cost of the projection device, resulting in waste of resources.
发明内容 Summary of the invention
本发明提供一种可在三维投影与二维投影间切换的图像投影装置。  The present invention provides an image projection apparatus that can switch between three-dimensional projection and two-dimensional projection.
为达上述优点， 本发明提出一种图像投影装置， 其包括光源、 透镜、 图 像形成单元、 变偏装置、 偏振片、 投影透镜及移动复位机构。 透镜聚集光源 发出的光线。 图像形成单元适于接收光源发出并由透镜聚集的光线且形成左 眼图像和右眼图像。 变偏装置供左眼图像和右眼图像穿过， 并使左眼图像和 右眼图像的偏振方向互不相同。 偏振片的偏振方向与左眼图像和右眼图像的 其中之一的偏振方向相同， 偏振片位于左眼图像和右眼图像的投影路径上的 第一位置。 投影透镜适于将左眼图像和右眼图像放大至屏幕上。 光源、 透镜、 图像形成单元、 变偏装置、 位于第一位置时的偏振片与投影透镜依次排列。 移动复位机构与偏振片固定连接， 且位于左眼图像和右眼图像的投影路径的 一侧， 适于将偏振片送离或送至第一位置。 In order to achieve the above advantages, the present invention provides an image projecting device comprising a light source, a lens, an image forming unit, a variable deflecting device, a polarizing plate, a projection lens, and a moving reset mechanism. The lens concentrates the light from the source. The image forming unit is adapted to receive light emitted by the light source and concentrated by the lens and form a left Eye image and right eye image. The variable deviation device passes through the left eye image and the right eye image, and causes the polarization directions of the left eye image and the right eye image to be different from each other. The polarization direction of the polarizing plate is the same as the polarization direction of one of the left eye image and the right eye image, and the polarizing plate is located at the first position on the projection path of the left eye image and the right eye image. The projection lens is adapted to magnify the left eye image and the right eye image onto the screen. The light source, the lens, the image forming unit, the deflecting device, and the polarizing plate and the projection lens in the first position are sequentially arranged. The moving reset mechanism is fixedly coupled to the polarizing plate and located on one side of the projection path of the left eye image and the right eye image, and is adapted to send or transport the polarizing plate to the first position.
在本发明的一实施例中， 上述的光源、 透镜、 图像形成单元、 变偏装置、 位于第一位置时的偏振片与投影透镜依次平行间隔排列。  In an embodiment of the invention, the light source, the lens, the image forming unit, and the variable deflection device are arranged in parallel with each other in parallel with the projection lens.
在本发明的一实施例中， 上述的图像投影装置更包括控制***， 控制系 统与移动复位机构连接， 适于控制移动复位机构移动而将偏振片送离或送至 第一位置。  In an embodiment of the invention, the image projection apparatus further includes a control system, and the control system is coupled to the movement reset mechanism, and is adapted to control movement of the movement reset mechanism to send or drop the polarizer to the first position.
在本发明的一实施例中， 上述的图像形成单元包括依次排列的第一偏振 片、 液晶显示组件及第二偏振片， 液晶显示组件具有交替排布的左眼像素与 右眼像素， 左眼像素适于形成左眼图像， 右眼像素适于形成右眼图像， 第一 偏振片的偏振方向垂直于第二偏振片的偏振方向。  In an embodiment of the invention, the image forming unit includes a first polarizing plate, a liquid crystal display component, and a second polarizing plate, which are sequentially arranged, and the liquid crystal display component has alternately arranged left-eye pixels and right-eye pixels, and the left eye. The pixels are adapted to form a left eye image, and the right eye pixels are adapted to form a right eye image, the polarization direction of the first polarizer being perpendicular to the polarization direction of the second polarizer.
在本发明的一实施例中， 上述的变偏装置为液晶组件， 液晶组件具有交 替排布的第一变偏部与第二变偏部， 第一变偏部与左眼像素相对应， 第二变 偏部与右眼像素相对应， 左眼图像与右眼图像穿过变偏装置后偏振方向互不 相同。  In an embodiment of the invention, the variable deflection device is a liquid crystal module, and the liquid crystal module has a first variation portion and a second variation portion arranged alternately, and the first variation portion corresponds to the left eye pixel, The second variator corresponds to the right eye pixel, and the polarization directions of the left eye image and the right eye image are different from each other after passing through the polarization device.
在本发明的一实施例中， 上述的变偏装置为相位延迟片， 相位延迟片调 整左眼图像与右眼图像的其中之一的偏振状态， 使得左眼图像和右眼图像的 偏振方向互不相同。  In an embodiment of the invention, the variable deviation device is a phase retarder, and the phase retarder adjusts a polarization state of one of the left eye image and the right eye image such that the polarization directions of the left eye image and the right eye image are mutually Not the same.
本发明还提出一种图像投影装置， 其包括两个图像投影单元、 偏振片及 移动复位机构。 每一图像投影单元包括依次排列的光源、 透镜、 图像形成单 元及投影透镜。 透镜聚集光源发出的光线。 图像形成单元适于接收光源发出 并由透镜聚集的光线且形成图像。 投影透镜适于将左眼图像和右眼图像放大 至屏幕上。两个图像投影单元的图像形成单元分别形成左眼图像和右眼图像， 且左眼图像和右眼图像的偏振方向互不相同。 偏振片的偏振方向与左眼图像 和右眼图像的其中之一的偏振方向相同， 偏振片位于左眼图像和右眼图像的 投影路径上的第一位置。 位于第一位置时的该偏振片配置于每一图像投影单 元的图像形成单元与投影透镜之间。 移动复位机构与偏振片固定连接， 且位 于左眼图像和右眼图像的投影路径的一侧， 适于将偏振片送离或送至第一位 置。 The present invention also provides an image projection apparatus comprising two image projection units, a polarizing plate and a movement reset mechanism. Each image projection unit includes a light source, a lens, an image forming unit, and a projection lens which are sequentially arranged. The lens concentrates the light from the source. The image forming unit is adapted to receive light emitted by the light source and concentrated by the lens and form an image. The projection lens is adapted to magnify the left eye image and the right eye image onto the screen. The image forming units of the two image projecting units respectively form a left eye image and a right eye image, and the polarization directions of the left eye image and the right eye image are different from each other. Polarization direction of the polarizer and left eye image The polarization direction is the same as one of the right eye images, and the polarizing plate is located at the first position on the projection path of the left eye image and the right eye image. The polarizing plate in the first position is disposed between the image forming unit of each image projecting unit and the projection lens. The moving reset mechanism is fixedly coupled to the polarizing plate and located on one side of the projection path of the left eye image and the right eye image, and is adapted to send or transport the polarizing plate to the first position.
在本发明的一实施例中， 上述的每一图像投影单元的光源、 透镜、 图像 形成单元、 投影透镜依次平行间隔排列。  In an embodiment of the invention, the light source, the lens, the image forming unit, and the projection lens of each of the image projecting units are sequentially arranged in parallel.
在本发明的一实施例中， 上述的图像投影装置更包括控制***， 控制系 统与移动复位机构连接， 适于控制移动复位机构的移动而将偏振片送离或送 至第一位置。  In an embodiment of the invention, the image projection apparatus further includes a control system, the control system being coupled to the movement reset mechanism, adapted to control movement of the movement reset mechanism to send or drop the polarizer to the first position.
在本发明的一实施例中， 上述的每一图像投影单元的图像形成单元包括 依次排列的第一偏振片、 液晶显示组件及第二偏振片， 其中一个液晶显示组 件适于形成左眼图像， 另一个液晶显示组件适于形成右眼图像， 第一偏振片 的偏振方向垂直于第二偏振片的偏振方向。  In an embodiment of the present invention, the image forming unit of each image projection unit includes a first polarizing plate, a liquid crystal display component, and a second polarizing plate, which are sequentially arranged, wherein one liquid crystal display component is adapted to form a left eye image. Another liquid crystal display assembly is adapted to form a right eye image, the polarization direction of the first polarizer being perpendicular to the polarization direction of the second polarizer.
在本发明的图像投影装置中， 偏振片的偏振方向与左眼图像和右眼图像 的其中之一的偏振方向相同。 偏振片位于左眼图像和右眼图像的投影路径上 的第一位置， 且移动复位机构可将偏振片送离或送至第一位置， 因此本发明 的图像投影装置可实现在三维影像投影与二维影像投影间的切换。  In the image projecting device of the present invention, the polarization direction of the polarizing plate is the same as the polarization direction of one of the left eye image and the right eye image. The polarizing plate is located at a first position on the projection path of the left eye image and the right eye image, and the moving reset mechanism can send or send the polarizing plate to the first position, so the image projecting device of the invention can realize the projection in the three-dimensional image Switching between 2D image projections.
上述说明仅是本发明技术方案的概述， 为了能够更清楚了解本发明的技 术手段， 而可依照说明书的内容予以实施， 并且为了让本发明的上述和其它 目的、 特征和优点能够更明显易懂， 以下特举实施例， 并配合附图， 详细说 明如下。 附图概述  The above description is only an overview of the technical solutions of the present invention, and the technical means of the present invention can be more clearly understood, and can be implemented in accordance with the contents of the specification, and the above and other objects, features and advantages of the present invention can be more clearly understood. The following specific embodiments are described in detail below with reference to the accompanying drawings. BRIEF abstract
图 1为人的左右眼观察物体时的示意图。  Fig. 1 is a schematic view of a person's left and right eyes when observing an object.
图 2为人的左眼与右眼观察图 1所示物体而获得的影像的示意图。 图 3为本发明第一实施例的图像投影装置处于二维投影状态时的结 构示意图。 图 4为图 3所示的图像投影装置的液晶显示组件的左眼像素和右眼 像素的示意图。 2 is a schematic view of an image obtained by observing the object shown in FIG. 1 by the left eye and the right eye of a person. FIG. 3 is a schematic structural view of the image projecting device according to the first embodiment of the present invention in a two-dimensional projection state. 4 is a schematic diagram of left-eye pixels and right-eye pixels of a liquid crystal display assembly of the image projecting device shown in FIG. 3.
图 5为图 3所示的图像投影装置切换至三维投影状态时的结构示意 图。  Fig. 5 is a view showing the configuration of the image projecting device shown in Fig. 3 when it is switched to the three-dimensional projection state.
图 6为本发明第二实施例的图像投影装置处于二维投影状态时的结 构示意图。  Fig. 6 is a view showing the configuration of an image projecting device in a two-dimensional projection state according to a second embodiment of the present invention.
图 7为图 6所示的图像投影装置处于三维投影状态时的结构示意图。 本发明的较佳实施方式  FIG. 7 is a schematic structural view of the image projecting device shown in FIG. 6 in a three-dimensional projection state. Preferred embodiment of the invention
为更进一步阐述本发明为达成预定发明目的所釆取的技术手段及功 效， 以下结合附图及较佳实施例， 对依据本发明提出的图像投影装置的 具体实施方式、 结构、 特征及功效， 详细说明如后。  To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the present invention, the specific embodiments, structures, features and functions of the image projecting device according to the present invention will be described below with reference to the accompanying drawings and preferred embodiments. The detailed description is as follows.
图 3为本发明第一实施例的图像投影装置处于二维投影状态时的结 构示意图。 请参见图 3 , 第一实施例的图像投影装置 20包括光源 210、 透镜 220、 图像形成单元 230、变偏装置 240、偏振片 250、投影透镜 260、 移动复位机构 270及控制*** 280。 光源 210、 透镜 220、 图像形成单元 230、 变偏装置 240、 偏振片 250与投影透镜 260依次排列， 且上述元件 的中心位于同一条直线上， 此时偏振片 250位于第一位置。 在本实施例 中， 光源 210、 透镜 220、 图像形成单元 230、 变偏装置 240、 位于第一 位置时的偏振片 250与投影透镜 260依次平行间隔排列。 移动复位机构 270与偏振片 250的端部固定连接， 控制*** 280与移动复位机构 270 连接， 适于控制移动复位机构 270移动而将偏振片 250送离或送至第一 位置。  Fig. 3 is a view showing the configuration of the image projecting device of the first embodiment of the present invention in a two-dimensional projection state. Referring to Fig. 3, the image projecting device 20 of the first embodiment includes a light source 210, a lens 220, an image forming unit 230, a polarization changing device 240, a polarizing plate 250, a projection lens 260, a moving reset mechanism 270, and a control system 280. The light source 210, the lens 220, the image forming unit 230, the polarization changing device 240, the polarizing plate 250 and the projection lens 260 are sequentially arranged, and the centers of the above elements are located on the same straight line, and the polarizing plate 250 is located at the first position. In the present embodiment, the light source 210, the lens 220, the image forming unit 230, and the polarization changing device 240, the polarizing plate 250 in the first position and the projection lens 260 are sequentially arranged in parallel. The movement reset mechanism 270 is fixedly coupled to the end of the polarizer 250, and the control system 280 is coupled to the movement reset mechanism 270 for controlling the movement of the reset mechanism 270 to transport the polarizer 250 away or to the first position.
光源 210包括发光部 212与反射部 213 , 发光部 212发出的光线经 过反射部 213反射而射向透镜 220。 透镜 220为聚焦透镜， 其聚集来自 光源 210的光线。  The light source 210 includes a light emitting portion 212 and a reflecting portion 213, and light emitted from the light emitting portion 212 is reflected by the reflecting portion 213 to be incident on the lens 220. Lens 220 is a focusing lens that collects light from source 210.
图像形成单元 230适于接收光源 210发出的光线并由此形成图像。 图像形成单元 230 包括依次排列的第一偏振片 232、 液晶显示组件 233 及第二偏振片 234 , 第一偏振片 232 的偏振方向垂直于第二偏振片 234 的偏振方向。 图 4为图 3所示的图像投影装置的液晶显示组件的左眼像 素和右眼像素的示意图。 请参见图 4 , 液晶显示组件 233具有交替设置 的左眼像素 235与右眼像素 236。 液晶显示组件 233上施加有根据左右 眼图像的信号而设置的电压， 而使得左眼像素 235可形成左眼图像， 右 眼像素 236可形成右眼图像。 光源 210发出的光线由透镜 220聚集后依 次穿过第一偏振片 232、 液晶显示组件 233及第二偏振片 234。 如此， 图 像形成单元 230便可交替形成按预定的相同方向偏振的左眼图像和右眼 图像。 The image forming unit 230 is adapted to receive the light emitted by the light source 210 and thereby form an image. The image forming unit 230 includes a first polarizing plate 232 and a liquid crystal display component 233 which are sequentially arranged. And the second polarizing plate 234, the polarization direction of the first polarizing plate 232 is perpendicular to the polarization direction of the second polarizing plate 234. 4 is a schematic diagram of left-eye pixels and right-eye pixels of a liquid crystal display assembly of the image projecting device shown in FIG. 3. Referring to FIG. 4, the liquid crystal display assembly 233 has left-eye pixels 235 and right-eye pixels 236 that are alternately disposed. A voltage set according to a signal of the left and right eye images is applied to the liquid crystal display assembly 233 such that the left eye pixel 235 can form a left eye image, and the right eye pixel 236 can form a right eye image. The light emitted by the light source 210 is collected by the lens 220 and sequentially passes through the first polarizing plate 232, the liquid crystal display unit 233, and the second polarizing plate 234. In this manner, the image forming unit 230 alternately forms the left eye image and the right eye image polarized in the predetermined same direction.
变偏装置 240供左眼图像和右眼图像穿过， 并使左眼图像和右眼图 像的偏振方向互不相同。 变偏装置 240可为液晶组件， 液晶组件包括两 层透明电极层（图未示）与介于两层电极层之间的液晶分子层（图未示；)。 例如， 当两层透明电极层间没有施加电压时， 图像形成单元 230产生的 左眼图像沿着液晶分子层穿过液晶组件。当在透明电极层间施加电压时， 液晶分子重新排列， 右眼图像沿着排列后的液晶分子穿过液晶组件。 其 中， 透明电极层间的加压周期与图像形成单元 230生成的左右眼图像的 周期相同。  The deflecting means 240 passes through the left eye image and the right eye image, and causes the polarization directions of the left eye image and the right eye image to be different from each other. The variable deflection device 240 can be a liquid crystal module comprising two transparent electrode layers (not shown) and a liquid crystal molecular layer interposed between the two electrode layers (not shown; For example, when no voltage is applied between the two transparent electrode layers, the left eye image generated by the image forming unit 230 passes through the liquid crystal module along the liquid crystal molecule layer. When a voltage is applied between the transparent electrode layers, the liquid crystal molecules are rearranged, and the right eye image passes through the liquid crystal element along the aligned liquid crystal molecules. Here, the pressurization period between the transparent electrode layers is the same as the period of the left and right eye images generated by the image forming unit 230.
当变偏装置 240为液晶组件时， 变偏装置 240具有交替排布的第一 变偏部（图未示）与第二变偏部（图未示）。 第一变偏部与图像形成单元 230的左眼像素 235相对应， 第二变偏部与图像形成单元 230的右眼像 素 236相对应。 左眼图像与右眼图像穿过变偏装置 240后偏振方向互不 相同。  When the deflecting means 240 is a liquid crystal module, the deflecting means 240 has a first varying portion (not shown) and a second varying portion (not shown) which are alternately arranged. The first varying portion corresponds to the left-eye pixel 235 of the image forming unit 230, and the second varying portion corresponds to the right-eye pixel 236 of the image forming unit 230. The left-eye image and the right-eye image pass through the polarization changing device 240, and the polarization directions are different from each other.
变偏装置 240也可为相位延迟片， 相位延迟片可调整左眼图像与右 眼图像的其中之一的偏振状态， 由此使左眼图像与右眼图像的偏振方向 互不相同。  The polarization changing device 240 may also be a phase retarder that adjusts the polarization state of one of the left eye image and the right eye image, thereby making the polarization directions of the left eye image and the right eye image different from each other.
偏振片 250的偏振方向与穿过变偏装置 240的左眼图像和右眼图像 其中之一的偏振方向相同， 这样， 如图 3所示， 偏振片 250位于左眼图 像和右眼图像的投影路径上的第一位置， 左眼图像和右眼图像其中之一 可以穿过偏振片 250。 投影透镜 260适于将左眼图像与 /或右眼图像放大 而投影至屏幕 SI上。移动复位机构 270与控制*** 280位于左眼图像和 右眼图像的投影路径的一侧。 The polarization direction of the polarizing plate 250 is the same as the polarization direction of one of the left eye image and the right eye image passing through the polarization changing device 240. Thus, as shown in FIG. 3, the polarizing plate 250 is located at the projection of the left eye image and the right eye image. In the first position on the path, one of the left eye image and the right eye image may pass through the polarizing plate 250. The projection lens 260 is adapted to magnify the left eye image and/or the right eye image It is projected onto the screen SI. The movement reset mechanism 270 and the control system 280 are located on one side of the projection path of the left eye image and the right eye image.
图 5为图 3所示的图像投影装置切换至三维投影状态时的结构示意 图。 请参见图 5 , 当用户需要观看三维影像时， 控制*** 280控制移动 复位机构 270移动而将偏振片 250送离第一位置， 例如将偏振片 250送 至图 5所示的位置。 图像形成单元 230产生的左眼图像和右眼图像穿过 变偏装置 240后， 偏振方向互不相同， 再由投影透镜 260放大而投影至 屏幕 S1上， 用户佩戴偏光式眼镜便可观看到三维影像。 请参见图 3 , 当 用户需要观看二维影像时， 控制*** 280控制移动复位机构 270移动而 将偏振片 250送至第一位置， 图像形成单元 230产生的左眼图像和右眼 图像经过变偏装置 240后， 偏振方向互不相同， 接着， 左眼图像和右眼 图像的其中之一穿过偏振片 250 , 再由投影透镜 260放大而投影至屏幕 S1上， 用户棵眼便可看到完整的二维图像。 因此， 图像投影装置 20可 实现在三维影像投影与二维影像投影之间的切换。  Fig. 5 is a view showing the configuration of the image projecting device shown in Fig. 3 when it is switched to the three-dimensional projection state. Referring to Figure 5, when the user needs to view the 3D image, the control system 280 controls the movement reset mechanism 270 to move to move the polarizer 250 away from the first position, e.g., to deliver the polarizer 250 to the position shown in FIG. After the left-eye image and the right-eye image generated by the image forming unit 230 pass through the polarization changing device 240, the polarization directions are different from each other, and then enlarged by the projection lens 260 to be projected onto the screen S1, and the user can view the three-dimensional shape by wearing the polarized glasses. image. Referring to FIG. 3, when the user needs to view the two-dimensional image, the control system 280 controls the movement reset mechanism 270 to move to send the polarizing plate 250 to the first position, and the left-eye image and the right-eye image generated by the image forming unit 230 are biased. After the device 240, the polarization directions are different from each other. Then, one of the left eye image and the right eye image passes through the polarizing plate 250, and then is enlarged by the projection lens 260 to be projected onto the screen S1, and the user can see the complete image. Two-dimensional image. Therefore, the image projecting device 20 can switch between the 3D image projection and the 2D image projection.
图 6为本发明第二实施例的图像投影装置处于二维投影状态时的结 构示意图。 请参见图 6 , 第二实施例的图像投影装置 30包括两个图像投 影单元 300 , 两个图像投影单元 300平行并排设置， 分别投影左眼图像 和右眼图像， 且左眼图像和右眼图像的偏振方向互不相同。 其中， 每一 图像投影单元 300包括依次平行间隔排列的光源 310、透镜 320、 图像形 成单元 330及投影透镜 340 , 光源 310、 透镜 320及投影透镜 340的结构 与作用分别与第一实施例的图像投影装置 20的光源 210、 透镜 220及投 影透镜 260的结构与作用相同， 在此不再作重复说明。  Fig. 6 is a view showing the configuration of an image projecting device in a two-dimensional projection state according to a second embodiment of the present invention. Referring to FIG. 6, the image projecting device 30 of the second embodiment includes two image projecting units 300. The two image projecting units 300 are arranged side by side in parallel, respectively projecting a left eye image and a right eye image, and a left eye image and a right eye image. The polarization directions are different from each other. Each image projection unit 300 includes a light source 310, a lens 320, an image forming unit 330, and a projection lens 340 which are sequentially arranged in parallel, and the structures and functions of the light source 310, the lens 320, and the projection lens 340 are respectively compared with the image of the first embodiment. The light source 210, the lens 220, and the projection lens 260 of the projection device 20 have the same structure and function, and will not be repeatedly described herein.
每一图像形成单元 330 包括依次排列的第一偏振片 332、 液晶显示 组件 333及第二偏振片 334。 其中一个液晶显示组件 333适于形成左眼 图像， 另一个液晶显示组件 333适于形成右眼图像。 第一偏振片 332的 偏振方向垂直于第二偏振片 334的偏振方向。  Each of the image forming units 330 includes a first polarizing plate 332, a liquid crystal display unit 333, and a second polarizing plate 334 which are sequentially arranged. One of the liquid crystal display assemblies 333 is adapted to form a left eye image and the other liquid crystal display assembly 333 is adapted to form a right eye image. The polarization direction of the first polarizing plate 332 is perpendicular to the polarization direction of the second polarizing plate 334.
第二实施例的图像投影装置 30还包括偏振片 350、移动复位机构 360 及控制*** 370。 移动复位机构 360与偏振片 350的端部固定连接， 控 制*** 370与移动复位机构 360连接， 且移动复位机构 360与控制*** 370位于左眼图像和右眼图像的投影路径的一侧。 偏振片 350的偏振方 向与左眼图像和右眼图像的其中之一的偏振方向相同。图 6中偏振片 350 位于两个图像投影单元 300的第二偏振片 334的一侧， 且自两个第二偏 振片 334 出射的左眼图像与右眼图像均可穿过偏振片 350 , 偏振片 350 位于左眼图像和右眼图像的投影路径上的第一位置， 位于第一位置时的 偏振片 350间隔配置于每一图像投影单元 300的图像形成单元 330与投 影透镜 340之间。 控制*** 370适于控制移动复位机构 360移动而将偏 振片 350送离或送至第一位置。 The image projecting device 30 of the second embodiment further includes a polarizing plate 350, a movement reset mechanism 360, and a control system 370. The movement reset mechanism 360 is fixedly coupled to the end of the polarizer 350, the control system 370 is coupled to the movement reset mechanism 360, and the reset mechanism 360 and the control system 370 is located on one side of the projection path of the left eye image and the right eye image. The polarization direction of the polarizing plate 350 is the same as the polarization direction of one of the left eye image and the right eye image. The polarizing plate 350 in FIG. 6 is located on one side of the second polarizing plate 334 of the two image projecting units 300, and the left-eye image and the right-eye image emitted from the two second polarizing plates 334 can pass through the polarizing plate 350, and the polarization The sheet 350 is located at a first position on the projection path of the left eye image and the right eye image, and the polarizing plate 350 at the first position is disposed between the image forming unit 330 of each image projecting unit 300 and the projection lens 340. Control system 370 is adapted to control movement of reset mechanism 360 to move or dispose polarizer 350 to the first position.
图 7为图 6所示的图像投影装置处于三维投影状态时的结构示意图。 请参见图 7 , 当用户需要观看三维影像时， 控制*** 370控制移动复位 机构 360移动而将偏振片 350送离第一位置， 并将偏振片 350送至图 7 所示的位置。 两个图像投影单元 300分别产生的左眼图像和右眼图像穿 过投影透镜 340放大而直接投影至屏幕 S2上，用户佩戴偏光式眼镜便可 观看到三维影像。 请参见图 6 , 当用户需要观看二维影像时， 控制*** 370控制移动复位机构 360移动而将偏振片 350送至第一位置， 两个图 像投影单元 300分别产生左眼图像和右眼图像， 由于偏振片 350的偏振 方向与左眼图像和右眼图像的其中之一的偏振方向相同， 左眼图像和右 眼图像的其中之一穿过偏振片 350 , 再经过投影透镜 340的放大作用而 投影至屏幕 S2上， 用户棵眼便可观看到完整的二维影像。 如此， 图像投 影装置 30可实现在三维影像投影与二维影像投影之间的切换。  FIG. 7 is a schematic structural view of the image projecting device shown in FIG. 6 in a three-dimensional projection state. Referring to FIG. 7, when the user needs to view the 3D image, the control system 370 controls the movement reset mechanism 360 to move to move the polarizer 350 away from the first position, and sends the polarizer 350 to the position shown in FIG. The left eye image and the right eye image respectively generated by the two image projecting units 300 are enlarged by the projection lens 340 and directly projected onto the screen S2, and the user can view the three-dimensional image by wearing the polarized glasses. Referring to FIG. 6, when the user needs to view the two-dimensional image, the control system 370 controls the movement reset mechanism 360 to move to send the polarizing plate 350 to the first position, and the two image projecting units 300 respectively generate the left eye image and the right eye image. Since the polarization direction of the polarizing plate 350 is the same as the polarization direction of one of the left eye image and the right eye image, one of the left eye image and the right eye image passes through the polarizing plate 350, and then is amplified by the projection lens 340. Projected onto the screen S2, the user can see the complete 2D image. Thus, the image projection device 30 can switch between the 3D image projection and the 2D image projection.
综上所述， 在本发明的图像投影装置至少具有以下的优点：  In summary, the image projecting device of the present invention has at least the following advantages:
1.图像投影装置包括偏振片和与偏振片固定连接的移动复位机构， 偏振片的偏振方向与左眼图像和右眼图像的其中之一的偏振方向相同。 偏振片位于左眼图像和右眼图像的投影路径上的第一位置。 移动复位机 构可将偏振片送离或送至第一位置。 本发明的图像投影装置可实现在三 维影像投影与二维影像投影间的切换，可省略更换投影装置的操作步骤， 使用方便。  1. An image projection apparatus comprising a polarizing plate and a moving reset mechanism fixedly coupled to the polarizing plate, the polarization direction of the polarizing plate being the same as the polarization direction of one of the left eye image and the right eye image. The polarizing plate is located at a first position on a projection path of the left eye image and the right eye image. The mobile reset mechanism can send or leave the polarizer to the first position. The image projection device of the present invention can realize switching between three-dimensional image projection and two-dimensional image projection, and the operation steps of replacing the projection device can be omitted, and the use is convenient.
2.本发明的图像投影装置可投影三维影像与二维影像， 当用户观看 三维影像想改为观看二维影像时， 不需要更换投影装置， 从而降低了投 影装置的使用成本， 同时避免了资源的浪费。 2. The image projection device of the present invention can project a three-dimensional image and a two-dimensional image. When the user views the three-dimensional image and wants to change to view the two-dimensional image, the projection device does not need to be replaced, thereby reducing the investment. The cost of using the video device while avoiding waste of resources.
以上所述， 仅是本发明的实施例而已， 并非对本发明作任何形式上 的限制， 虽然本发明已以实施例揭露如上， 然而并非用以限定本发明， 任何熟悉本专业的技术人员， 在不脱离本发明技术方案范围内， 当可利 用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例， 但凡是未脱离本发明技术方案内容， 依据本发明的技术实质对以上实施 例所作的任何简单修改、 等同变化与修饰， 均仍属于本发明技术方案的 范围内。  The above is only the embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. The equivalents of the technical solutions disclosed above may be modified or modified to equivalent variations without departing from the technical scope of the present invention, without departing from the technical scope of the present invention. Any simple modifications, equivalent changes and modifications made by the embodiments are still within the scope of the technical solutions of the present invention.
工业实用性 Industrial applicability
在本发明的图像投影装置中， 偏振片的偏振方向与左眼图像和右眼图像 的其中之一的偏振方向相同。 偏振片位于左眼图像和右眼图像的投影路径上 的第一位置， 且移动复位机构可将偏振片送离或送至第一位置， 因此本发明 的图像投影装置可实现在三维影像投影与二维影像投影间的切换。  In the image projecting device of the present invention, the polarization direction of the polarizing plate is the same as the polarization direction of one of the left eye image and the right eye image. The polarizing plate is located at a first position on the projection path of the left eye image and the right eye image, and the moving reset mechanism can send or send the polarizing plate to the first position, so the image projecting device of the invention can realize the projection in the three-dimensional image Switching between 2D image projections.

Claims

权 利 要 求 书 Claim
1.一种图像投影装置， 其包括：  An image projection apparatus comprising:
一光源；  a light source
一透镜， 聚集该光源发出的光线；  a lens that collects light from the light source;
一图像形成单元， 适于接收该光源发出并由该透镜聚集的光线且形 成左眼图像和右眼图像；  An image forming unit adapted to receive light emitted by the light source and concentrated by the lens and form a left eye image and a right eye image;
一变偏装置， 供该左眼图像和该右眼图像穿过， 并使该左眼图像和 该右眼图像的偏振方向互不相同；  a variable-biasing device for the left-eye image and the right-eye image to pass through, and the polarization directions of the left-eye image and the right-eye image are different from each other;
一偏振片， 其偏振方向与该左眼图像和该右眼图像的其中之一的偏 振方向相同， 该偏振片位于该左眼图像和该右眼图像的投影路径上的第 一位置；  a polarizing plate having a polarization direction which is the same as a polarization direction of one of the left eye image and the right eye image, the polarizing plate being located at a first position on a projection path of the left eye image and the right eye image;
一投影透镜， 适于将该左眼图像和该右眼图像放大至屏幕上； 一移动复位机构， 与该偏振片固定连接， 且位于该左眼图像和该右 眼图像的投影路径的一侧， 适于将该偏振片送离或送至该第一位置； 其中该光源、 该透镜、 该图像形成单元、 该变偏装置、 位于第一位 置时的该偏振片与该投影透镜依次排列。  a projection lens adapted to magnify the left eye image and the right eye image onto the screen; a movement reset mechanism fixedly coupled to the polarizer and located on a side of the projection path of the left eye image and the right eye image The polarizing plate is adapted to be sent or sent to the first position; wherein the light source, the lens, the image forming unit, the variable deflecting device, and the polarizing plate in the first position are sequentially arranged with the projection lens.
2.如权利要求 1 所述的图像投影装置， 其特征在于， 该光源、 该透 镜、 该图像形成单元、 该变偏装置、 位于第一位置时的该偏振片与该投 影透镜依次平行间隔排列。  The image projection device according to claim 1, wherein the light source, the lens, the image forming unit, and the variable deflecting device are arranged in parallel with the projection lens in a first position. .
3.如权利要求 1 所述的图像投影装置， 其特征在于， 更包括一控制 ***， 该控制***与该移动复位机构连接， 适于控制该移动复位机构移 动而将该偏振片送离或送至该第一位置。  The image projection apparatus according to claim 1, further comprising a control system, wherein the control system is coupled to the movement resetting mechanism, and is adapted to control movement of the movement reset mechanism to send or send the polarizer To the first position.
4.如权利要求 1 所述的图像投影装置， 其特征在于， 该图像形成单 元包括依次排列的第一偏振片、 液晶显示组件及第二偏振片， 该液晶显 示组件具有交替排布的左眼像素与右眼像素， 该左眼像素适于形成左眼 图像， 该右眼像素适于形成右眼图像， 该第一偏振片的偏振方向垂直于 该第二偏振片的偏振方向。 The image projecting device according to claim 1, wherein the image forming unit comprises a first polarizing plate, a liquid crystal display component, and a second polarizing plate, which are sequentially arranged, the liquid crystal display component having alternately arranged left eyes a pixel and a right eye pixel, the left eye pixel being adapted to form a left eye image, the right eye pixel being adapted to form a right eye image, the polarization direction of the first polarizer being perpendicular to a polarization direction of the second polarizer.
5.如权利要求 4所述的图像投影装置， 其特征在于， 该变偏装置为 液晶组件， 该液晶组件具有交替排布的第一变偏部与第二变偏部， 该第 一变偏部与该左眼像素相对应， 该第二变偏部与该右眼像素相对应， 该 左眼图像与该右眼图像穿过该变偏装置后偏振方向互不相同。 The image projection apparatus according to claim 4, wherein the variable deviation device is a liquid crystal module having a first variator and a second variator arranged alternately, the first variator Corresponding to the left eye pixel, the second variator portion corresponds to the right eye pixel, and the left eye image and the right eye image pass through the polarization device and the polarization directions are different from each other.
6.如权利要求 4所述的图像投影装置， 其特征在于， 该变偏装置为 相位延迟片， 该相位延迟片调整左眼图像与右眼图像的其中之一的偏振 状态， 使得左眼图像和右眼图像的偏振方向互不相同。  The image projecting device according to claim 4, wherein the variable deviation device is a phase retarder that adjusts a polarization state of one of a left eye image and a right eye image, such that a left eye image The polarization directions of the images with the right eye are different from each other.
7.—种图像投影装置， 其包括：  7. An image projection apparatus comprising:
两个图像投影单元， 每一图像投影单元包括依次排列的：  Two image projection units, each image projection unit comprising:
一光源；  a light source
一透镜， 聚集该光源发出的光线；  a lens that collects light from the light source;
一图像形成单元， 适于接收该光源发出并由该透镜聚集的光线 且形成图像；  An image forming unit adapted to receive light emitted by the light source and concentrated by the lens and form an image;
一投影透镜， 适于将该左眼图像和该右眼图像放大至屏幕上； 其中，两个图像投影单元的图像形成单元分别形成左眼图像和右眼图像， 且该左眼图像和该右眼图像的偏振方向互不相同；  a projection lens adapted to enlarge the left eye image and the right eye image onto the screen; wherein the image forming units of the two image projecting units respectively form a left eye image and a right eye image, and the left eye image and the right image The polarization directions of the eye images are different from each other;
一偏振片， 其偏振方向与该左眼图像和该右眼图像的其中之一的偏 振方向相同， 该偏振片位于该左眼图像和该右眼图像的投影路径上的第 一位置， 位于第一位置时的该偏振片配置于每一图像投影单元的该图像 形成单元与该投影透镜之间； 以及  a polarizing plate having a polarization direction that is the same as a polarization direction of one of the left eye image and the right eye image, the polarizing plate being located at a first position on a projection path of the left eye image and the right eye image, located at a first position The polarizing plate at a position is disposed between the image forming unit of each image projecting unit and the projection lens;
一移动复位机构， 与该偏振片固定连接， 且位于该左眼图像和该右 眼图像的投影路径的一侧， 适于将该偏振片送离或送至该第一位置。  A movement reset mechanism is fixedly coupled to the polarizer and located on one side of the projection path of the left eye image and the right eye image, adapted to send or drop the polarizer to the first position.
8.如权利要求 7 所述的图像投影装置， 其特征在于， 每一图像投影 单元的该光源、 该透镜、 该图像形成单元、 该投影透镜依次平行间隔排 列。  The image projecting device according to claim 7, wherein the light source, the lens, the image forming unit, and the projection lens of each image projecting unit are sequentially arranged in parallel.
9.如权利要求 7 所述的图像投影装置， 其特征在于， 更包括一控制 ***， 该控制***与该移动复位机构连接， 适于控制该移动复位机构的 移动而将该偏振片送离或送至该第一位置。 9. The image projection apparatus according to claim 7, further comprising a control system coupled to the movement reset mechanism, adapted to control movement of the movement reset mechanism to send the polarizer away or Send to the first location.
10.如权利要求 7所述的图像投影装置， 其特征在于， 每一图像投影 单元的该图像形成单元包括依次排列的第一偏振片、 液晶显示组件及第 二偏振片， 其中一个液晶显示组件适于形成该左眼图像， 另一个液晶显 示组件适于形成该右眼图像， 该第一偏振片的偏振方向垂直于该第二偏 振片的偏振方向。 The image projecting device according to claim 7, wherein the image forming unit of each image projecting unit comprises a first polarizing plate, a liquid crystal display component and a second polarizing plate, which are sequentially arranged, wherein one liquid crystal display component Suitable for forming the left eye image, another liquid crystal display assembly is adapted to form the right eye image, the polarization direction of the first polarizer being perpendicular to the polarization direction of the second polarizer.
PCT/CN2010/080054 2010-12-21 2010-12-21 Image projection apparatus WO2012083525A1 (en)

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