WO2012116570A1 - 偏光眼镜、偏光滤波器、投影机 - Google Patents

偏光眼镜、偏光滤波器、投影机 Download PDF

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Publication number
WO2012116570A1
WO2012116570A1 PCT/CN2011/084852 CN2011084852W WO2012116570A1 WO 2012116570 A1 WO2012116570 A1 WO 2012116570A1 CN 2011084852 W CN2011084852 W CN 2011084852W WO 2012116570 A1 WO2012116570 A1 WO 2012116570A1
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WIPO (PCT)
Prior art keywords
polarized light
linearly polarized
conductive layer
electric field
transmitted
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PCT/CN2011/084852
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English (en)
French (fr)
Inventor
刘美鸿
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深圳市亿思达显示科技有限公司
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Publication of WO2012116570A1 publication Critical patent/WO2012116570A1/zh

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    • 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
    • G03B35/00—Stereoscopic photography
    • G03B35/18—Stereoscopic photography by simultaneous viewing
    • G03B35/26—Stereoscopic photography by simultaneous viewing using polarised or coloured light separating different viewpoint images
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/008—Aspects relating to glasses for viewing stereoscopic images

Definitions

  • the present invention relates to the field of projection technologies, and in particular, to a polarizing glasses, a polarizing filter, and a projector.
  • the technical problem to be solved by the present invention is to provide a polarizing glasses, a polarizing filter, and a projector.
  • the left lens is disposed on the eyeglass frame, and includes: a left lens quarter wave plate and a left lens polarizing plate;
  • the left lens quarter wave plate is configured to transmit elliptically polarized light into linearly polarized light by transmitting elliptically polarized light;
  • the right lens is disposed on the eyeglass frame, and includes: a right lens quarter wave plate and a right lens polarizing plate;
  • the right lens quarter wave plate is configured to transmit transmitted elliptically polarized light into linearly polarized light by transmitting elliptically polarized light;
  • the right lens polarizing plate is configured to transmit the linearly polarized light
  • Electric field selector electric field provider, polarizer
  • the electric field provider is configured to provide an electric field to the polarizer when the electric field selector selects to supply an electric field to the polarizer;
  • the polarizer includes: a polarizing plate, a first conductive layer, a liquid crystal layer, a second conductive layer, and a quarter wave plate;
  • the polarizing plate is configured to transmit linearly polarized light in a direction parallel to a polarity direction;
  • the first conductive layer is bonded to the polarizing plate for transmitting linearly polarized light transmitted through the polarizing plate;
  • the second conductive layer is adhered to the liquid crystal layer for transmitting linearly polarized light 1 and linearly polarized light transmitted through the liquid crystal layer;
  • the quarter-wave plate is bonded to the second conductive layer for transmitting the linearly polarized light transmitted through the second conductive layer to convert the transmitted linearly polarized light into an elliptically polarized light. Transmitting linearly polarized light into elliptically polarized light through the linearly polarized light transmitted by the second conductive layer.
  • the projection device is configured to project image signal light
  • the polarizing filter is disposed on a transmission path of the image signal light projected by the projection device, and includes: an electric field selector, an electric field provider, and a polarizer;
  • the electric field selector is configured to select a predetermined time to provide an electric field to the polarizer
  • the polarizer includes: a polarizing plate, a first conductive layer, a liquid crystal layer, a second conductive layer, and a quarter wave plate;
  • the first conductive layer is bonded to the polarizing plate for transmitting linearly polarized light transmitted through the polarizing plate;
  • the liquid crystal layer is adhered to the first conductive layer, and is used to rotate the linearly polarized light transmitted by the first conductive layer when the first conductive layer and the second conductive layer do not add an electric field. Angle, obtaining linearly polarized light 2, and transmitting the linearly polarized light 2 obtained by the rotation; and transmitting the electric field to the first conductive layer and the second conductive layer when the electric field provider supplies the first conductive layer a linearly polarized light transmitted by the layer;
  • the second conductive layer is adhered to the liquid crystal layer for transmitting linearly polarized light 1 and linearly polarized light transmitted through the liquid crystal layer;
  • the quarter-wave plate is bonded to the second conductive layer for transmitting the linearly polarized light transmitted through the second conductive layer to convert the transmitted linearly polarized light into an elliptically polarized light. Transmitting linearly polarized light into elliptically polarized light through the linearly polarized light transmitted by the second conductive layer.
  • the projector of the present invention applies a polarizing filter to generate alternating image signal light at a predetermined time, for example, a frequency of 120 frames per second, each image frame is alternated in order, and the generated alternating image signal light is reflected by the projection screen to the polarized glasses.
  • the direction of vibration does not change.
  • the viewer can only see the corresponding image through the left and right lenses of the polarized glasses, that is, the viewer receives a left eye frame through the polarized glasses, the next right eye frame, and then another left eye.
  • the frame, followed by another right-eye frame creates a stereoscopic feeling in the visual nervous system, and achieves the purpose of viewing the stereoscopic image, thereby achieving the purpose of achieving stereoscopic images through a projector.
  • Figure 2 is a schematic view of the left lens
  • Figure 3 is a schematic view of the right lens
  • Figure 6 is a schematic view of a projector of the present invention.
  • the invention provides a polarized glasses, a polarizing filter, a projector and a stereoscopic image system, which are applied to the field of projection technology.
  • the projector of the present invention applies a polarizing filter to generate alternating image signal light at a frequency of 120 frames per second for a predetermined time. Each image frame alternates in order, and the generated image signal light is reflected by the projection screen to the polarized glasses, and the direction of vibration of the light does not change. The viewer can only see the corresponding image through the left lens and the right lens of the polarized glasses.
  • the invention provides a polarized glasses.
  • FIG. 2 is a schematic diagram of a left lens, the left lens 101 is disposed on the eyeglass frame 103, including: a left lens quarter wave plate 1011, a left lens polarizing plate 1012;
  • a left lens polarizing plate 1012 for transmitting the linearly polarized light
  • FIG. 3 is a schematic view of the right lens, the right lens 102, disposed on the eyeglass frame 103, comprising: a right lens quarter wave plate 1021, a right lens polarizing plate 1022;
  • the polarity direction of the left lens polarizing plate 1012 is not parallel to the polarity direction of the right lens polarizing plate 1022.
  • the right lens quarter wave plate 1021 transmits elliptically polarized light
  • the process of converting the transmitted elliptically polarized light into linearly polarized light comprises:
  • the polarity direction is at a predetermined angle two with respect to the fast axis of the right lens quarter wave plate 1021 for transmitting the linearly polarized light; or the polarity direction is parallel to the vibration direction of the linearly polarized light for transmitting Linearly polarized light.
  • the left lens quarter wave plate 1011 converts the transmitted circularly polarized light into linearly polarized light by transmitting circularly polarized light whose vibration direction is at an angle of 45 degrees to the fast axis.
  • the right lens quarter-wave plate 1021 transmits circularly polarized light having a 45-degree angle to the fast axis of the right lens, and converts the transmitted circularly polarized light into linearly polarized light.
  • the polar direction of the left lens polarizing plate 1012 is at an angle of 45 degrees with the fast axis of the left lens quarter wave plate 1011 for transmitting the linearly polarized light; or the polarity direction is opposite to the vibration direction of the linearly polarized light. Parallel for transmitting linearly polarized light.
  • the polarity direction of the right lens polarizing plate 1022 is at an angle of 45 degrees with the fast axis of the right lens quarter wave plate 1021 for transmitting the linearly polarized light; or the polarity direction is opposite to the vibration direction of the linearly polarized light. Parallel for transmitting linearly polarized light.
  • the invention also provides a polarizing filter.
  • FIG. 4 is a schematic diagram of a polarizing filter 400 of the present invention.
  • the polarizing filter 400 includes an electric field selector 401 , an electric field provider 402 , and a polarizer 403 .
  • the electric field selector 401 is configured to select a predetermined time to provide an electric field to the polarizer 403.
  • the electric field provider 402 is configured to provide an electric field to the polarizer 403 when the electric field selector 401 selects to supply an electric field to the polarizer 403.
  • the polarizer 403 includes: a polarizing plate 4031, a first conductive layer 4032, a liquid crystal layer 4033, a second conductive layer 4034, a quarter wave plate 4035;
  • a polarizing plate 4031 for transmitting linearly polarized light in a direction parallel to a polarity direction
  • the first conductive layer 4032 is bonded to the polarizing plate 4031 for transmitting the linearly polarized light transmitted by the polarizing plate 4031;
  • the liquid crystal layer 4033 is bonded to the first conductive layer 4032 for rotating the linearly polarized light transmitted by the first conductive layer 4032 by a predetermined angle when the first conductive layer 4032 and the second conductive layer 4034 are not added with an electric field.
  • the linearly polarized light 2 passes through the rotated linearly polarized light 2; when the electric field provider 402 supplies an electric field to the first conductive layer 4032 and the second conductive layer 4034, the line transmitted through the first conductive layer 4032 Polarized light
  • the second conductive layer 4034 is bonded to the liquid crystal layer 4033 for transmitting the linearly polarized light 1 and the linearly polarized light transmitted by the liquid crystal layer 4033;
  • the electric field selector 401 selects a predetermined time
  • the process of providing an electric field to the polarizer 403 includes:
  • the first conductive layer 4032 includes indium tin oxide (ITO) conductive glass, and is bonded to the polarizing plate 4031 for transmitting the linearly polarized light transmitted through the polarizing plate 4031.
  • ITO indium tin oxide
  • the liquid crystal layer 4033 includes a twisted nematic (TN) type liquid crystal layer bonded to the first conductive layer 4032 for rotating the first conductive layer when the first conductive layer 4032 and the second conductive layer 4034 do not add an electric field.
  • the linearly polarized light transmitted by 4032 is 90 degrees, and the linearly polarized light is obtained, and the linearly polarized light 2 obtained by the rotation is obtained.
  • the electric field provider 402 supplies an electric field to the first conductive layer 4032 and the second conductive layer 4034, The linearly polarized light transmitted through the first conductive layer 4032.
  • the liquid crystal layer 4033 includes a super twisted nematic (STN) type liquid crystal layer and is adhered to the first conductive layer 4032 for rotating the first conductive layer when the first conductive layer 4032 and the second conductive layer 4034 do not add an electric field.
  • the linearly polarized light transmitted by the layer 4032 is 270 degrees, and the linearly polarized light is obtained, and the linearly polarized light 2 obtained by the rotation is obtained.
  • the electric field provider 402 supplies an electric field to the first conductive layer 4032 and the second conductive layer 4034.
  • the electric field selector 401 includes a power supply gate for selecting a predetermined time to supply an electric field to the polarizer 403.
  • the electric field provider 402 includes a power source for supplying an electric field to the polarizer 403 when the electric field selector 401 selects to supply an electric field to the polarizer 403.
  • the process of converting the transmitted linearly polarized light into the elliptically polarized light by the linearly polarized light transmitted by the quarter wave plate 4035 through the second conductive layer 4034 includes:
  • the quarter-wave plate 4035 converts the transmitted linearly polarized light into an elliptically polarized light by transmitting a linearly polarized light of a predetermined angle to the fast axis.
  • the quarter-wave plate 4035 converts the transmitted linearly polarized light into an elliptically polarized light by transmitting a linearly polarized light of two at a predetermined angle to the fast axis.
  • the quarter wave plate 4035 converts the transmitted linearly polarized light into a circularly polarized light by transmitting linearly polarized light of a 45-degree angle with the fast axis.
  • the quarter-wave plate 4035 converts the transmitted linearly polarized light into a circularly polarized light by transmitting a linearly polarized light of a direction of 45 degrees from the fast axis.
  • the invention further provides a projector.
  • An electric field selector 401 for selecting a predetermined time to provide an electric field to the polarizer 403;
  • the polarizer 403 includes: a polarizing plate 4031, a first conductive layer 4032, a liquid crystal layer 4033, a second conductive layer 4034, a quarter wave plate 4035;
  • the polarizing plate 4031 is configured to transmit the linearly polarized light by transmitting the light of the image signal projected by the projection device 601 through the light in a direction parallel to the polarity direction;
  • the first conductive layer 4032 is bonded to the polarizing plate 4031 for transmitting the linearly polarized light transmitted by the polarizing plate 4031;
  • the liquid crystal layer 4033 is bonded to the first conductive layer 4032 for rotating the linearly polarized light transmitted by the first conductive layer 4032 by a predetermined angle when the first conductive layer 4032 and the second conductive layer 4034 are not added with an electric field.
  • the linearly polarized light 2 passes through the rotated linearly polarized light 2; when the electric field provider 402 supplies an electric field to the first conductive layer 4032 and the second conductive layer 4034, the line transmitted through the first conductive layer 4032 Polarized light
  • the second conductive layer 4034 is bonded to the liquid crystal layer 4033 for transmitting the linearly polarized light 1 and the linearly polarized light transmitted by the liquid crystal layer 4033;
  • the quarter-wave plate 4035 is bonded to the second conductive layer 4034 for transmitting the linearly polarized light transmitted through the second conductive layer 4034 to the elliptically polarized light.
  • the linearly polarized light transmitted by the second conductive layer 4034 converts the transmitted linearly polarized light into two elliptically polarized light.
  • the electric field selector 401 selects a predetermined time
  • the process of providing an electric field to the polarizer 403 includes:
  • the electric field selector 401 selects an electric field to be applied to the polarizer 403 at N/120 seconds, where N includes an odd number and an even number.
  • the second conductive layer 4034 includes indium tin oxide ITO conductive glass and is adhered to the liquid crystal layer 4033 for transmitting the linearly polarized light 1 and the linearly polarized light transmitted by the liquid crystal layer 4033.
  • the liquid crystal layer 4033 includes a super twisted nematic STN type liquid crystal layer and is adhered to the first conductive layer 4032 for rotating the first conductive layer 4032 when the first conductive layer 4032 and the second conductive layer 4034 do not add an electric field.
  • the transmitted linearly polarized light is 270 degrees, the linearly polarized light is obtained, and the linearly polarized light 2 obtained by the rotation is obtained; when the electric field provider 402 supplies an electric field to the first conductive layer 4032 and the second conductive layer 4034, The linearly polarized light transmitted through the first conductive layer 4032.
  • the electric field selector 401 includes a power supply gate for selecting a predetermined time to supply an electric field to the polarizer 403.
  • the electric field provider 402 includes a power source for supplying an electric field to the polarizer 403 when the electric field selector 401 selects to supply an electric field to the polarizer 403.
  • the process of converting the transmitted linearly polarized light into the elliptically polarized light by the linearly polarized light transmitted by the quarter wave plate 4035 through the second conductive layer 4034 includes:
  • the quarter-wave plate 4035 converts the transmitted linearly polarized light into an elliptically polarized light by transmitting a linearly polarized light of a predetermined angle to the fast axis.
  • the process of converting the transmitted linearly polarized light into the elliptically polarized light by the linearly polarized light transmitted by the quarter wave plate 4035 through the second conductive layer 4034 includes:
  • the quarter-wave plate 4035 converts the transmitted linearly polarized light into an elliptically polarized light by transmitting a linearly polarized light of two at a predetermined angle to the fast axis.
  • the quarter wave plate 4035 converts the transmitted linearly polarized light into a circularly polarized light by transmitting linearly polarized light of a 45-degree angle with the fast axis.
  • the quarter-wave plate 4035 converts the transmitted linearly polarized light into a circularly polarized light by transmitting a linearly polarized light of a direction of 45 degrees from the fast axis.
  • the projection device 601 includes: a digital light processing DLP projector for projecting image signal light; or a liquid crystal on silicon LCOS projector for projecting image signal light; or a liquid crystal LCD projector for projecting image signal light.
  • the alternating image signal light generated by the polarizing filter 602 at a frequency of 120 frames per second for a predetermined time may be synchronized with the image signal light projected by the projection device 601.
  • the projector 600 of the present invention applies the polarizing filter 602 to generate alternating image signal rays at a predetermined time, such as a frequency of 120 frames per second, each image frame is alternated in order, and the generated alternating image signal light is reflected to the polarized glasses through the projection screen.
  • the viewer can only see the corresponding image through the left lens and the right lens of the polarized glasses, that is, the viewer receives a left eye frame through the polarized glasses, and then a right eye frame, and then another The left eye frame, and then another right eye frame, creates a stereoscopic feeling in the visual nervous system, and achieves the purpose of viewing the stereoscopic image, thereby achieving the purpose of achieving stereoscopic images through a projector.
  • FIG. 1 , FIG. 4 and FIG. 7 are schematic diagrams of a stereoscopic image system of the present invention.
  • the stereoscopic image system 700 includes a projector 701 , a projection screen 702 , and polarized glasses 703 .
  • the projector 701 may be the projector 600 described above, and the polarized glasses 703 may be the above-described polarized glasses 100.
  • the direction is the same as the direction of vibration of the elliptically polarized light two.
  • the stereoscopic image system 700 of the present invention applies the projector 701 to generate alternating image signal rays at a predetermined time, such as a frequency of 120 frames per second, and the image frames are alternated in order, and the generated alternating image signal rays are reflected to the polarized light through the projection screen 702.
  • the direction of vibration of the light does not change, and the viewer can only see the corresponding image through the polarized glasses 703, the left lens 101 and the right lens 102, that is, the viewer receives a left eye frame through the polarized glasses 703, and the next right The eye frame, then another left eye frame, and then another right eye frame, thereby generating a stereoscopic feeling in the visual nervous system, and achieving the purpose of viewing the stereoscopic image, thereby achieving the purpose of achieving a stereoscopic image through a projector.
  • polarized glasses, the polarizing filter, the projector, and the stereoscopic image system of the present invention are realized in various forms. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Liquid Crystal (AREA)

Description

偏光眼镜、偏光滤波器、投影机
【技术领域】
本发明涉及投影技术领域，尤其涉及一种偏光眼镜、偏光滤波器、投影机。
【背景技术】
投影机是一种用于投射图像信号光线至投影屏幕上成像的设备，现有的投影机包括液晶（LCD）投影机、硅基液晶（LCOS）投影机、数字光处理（DLP）投影机。
立体投影是通过光的偏振原理来实现的，现有的实现立体投影的方案是采用两台投影机同步投射图像，将两台投影机前的偏光片的偏振方向互相垂直，让产生的两束偏振光的偏振方向也互相垂直，而且偏振光投射至专用的投影屏幕再反射至观看者位置时偏振光方向不会改变，观看者通过偏光眼镜左、右眼只能看到相应的偏振光图像，从而在视觉神经系统中产生立体感觉，达到观赏立体影像的目的，现有技术还无法实现通过一台投影机达到观赏立体影像的目的。
【发明内容】
本发明要解决的技术问题是提供一种偏光眼镜、偏光滤波器、投影机。
本发明的目的在于提供一种偏光眼镜，包括：
左镜片、右镜片、眼镜框架；
所述左镜片，设置于所述眼镜框架上，包括：左镜片四分之一波片、左镜片偏光板；
所述左镜片四分之一波片，用于透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光；
所述左镜片偏光板，用于透过所述线偏振光；
所述右镜片，设置于所述眼镜框架上，包括：右镜片四分之一波片、右镜片偏光板；
所述右镜片四分之一波片，用于透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光；
所述右镜片偏光板，用于透过所述线偏振光；
所述左镜片偏光板的极性方向与所述右镜片偏光板的极性方向不相平行。
本发明的目的在于还提供一种偏光滤波器，包括：
电场选择器、电场提供器、起偏器；
所述电场选择器，用于选择预定时间，对所述起偏器提供电场；
所述电场提供器，用于在所述电场选择器选择对所述起偏器提供电场时，提供电场给所述起偏器；
所述起偏器包括：偏光板、第一导电层、液晶层、第二导电层、四分之一波片；
所述偏光板，用于透过与极性方向相平行方向的线偏振光一；
所述第一导电层，与所述偏光板相粘合，用于透过所述偏光板所透过的线偏振光一；
所述液晶层，与所述第一导电层相粘合，用于在所述第一导电层、第二导电层不加入电场时，旋转所述第一导电层所透过的线偏振光一预定角度，得到线偏振光二，并透过所述经旋转后得到的线偏振光二；在所述电场提供器提供电场给所述第一导电层、第二导电层时，透过所述第一导电层所透过的线偏振光一；
所述第二导电层，与所述液晶层相粘合，用于透过所述液晶层所透过的线偏振光一、线偏振光二；
所述四分之一波片，与所述第二导电层相粘合，用于透过所述第二导电层所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；透过所述第二导电层所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
本发明的目的在于又提供一种投影机，包括：
投射设备、偏光滤波器；
所述投射设备，用于投射图像信号光线；
所述偏光滤波器，设置于所述投射设备所投射出的图像信号光线的传递路径上，包括：电场选择器、电场提供器、起偏器；
所述电场选择器，用于选择预定时间，对所述起偏器提供电场；
所述电场提供器，用于在所述电场选择器选择对所述起偏器提供电场时，提供电场给所述起偏器；
所述起偏器，包括：偏光板、第一导电层、液晶层、第二导电层、四分之一波片；
所述偏光板，用于透过与极性方向相平行方向的光线，透过所述投射设备所投射出的图像信号光线，得到线偏振光一；
所述第一导电层，与所述偏光板相粘合，用于透过所述偏光板所透过的线偏振光一；
所述液晶层，与所述第一导电层相粘合，用于在所述第一导电层、第二导电层不加入电场时，旋转所述第一导电层所透过的线偏振光一预定角度，得到线偏振光二，并透过所述经旋转后得到的线偏振光二；在所述电场提供器提供电场给所述第一导电层、第二导电层时，透过所述第一导电层所透过的线偏振光一；
所述第二导电层，与所述液晶层相粘合，用于透过所述液晶层所透过的线偏振光一、线偏振光二；
所述四分之一波片，与所述第二导电层相粘合，用于透过所述第二导电层所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；透过所述第二导电层所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
本发明投影机应用偏光滤波器按预定时间如每秒120帧的频率产生交替的图像信号光线，各图像帧按顺序交替，而且该产生的交替的图像信号光线经投影屏幕反射至偏光眼镜时光线的振动方向不会改变，观看者通过偏光眼镜左镜片、右镜片只能看到相应的图像，即观看者通过偏光眼镜接收到一个左眼帧，接下来一个右眼帧，然后再一个左眼帧，接下来又一个右眼帧，从而在视觉神经系统中产生立体感觉，达到观赏立体影像的目的，从而达到实现通过一台投影机达到观赏立体影像的目的。
【附图说明】
图1，为本发明偏光眼镜的示意图；
图2，为左镜片的示意图；
图3，为右镜片的示意图；
图4，为本发明偏光滤波器的示意图；
图5，为起偏器的示意图；
图6，为本发明投影机的示意图；
图7，为本发明立体影像系统的示意图。
【具体实施方式】
本发明提供一种偏光眼镜、偏光滤波器、投影机、立体影像系统，应用于投影技术领域，本发明投影机应用偏光滤波器按预定时间如每秒120帧的频率产生交替的图像信号光线，各图像帧按顺序交替，而且该产生的交替的图像信号光线经投影屏幕反射至偏光眼镜时光线的振动方向不会改变，观看者通过偏光眼镜左镜片、右镜片只能看到相应的图像，即观看者通过偏光眼镜接收到一个左眼帧，接下来一个右眼帧，然后再一个左眼帧，接下来又一个右眼帧，从而在视觉神经系统中产生立体感觉，达到观赏立体影像的目的，从而达到实现通过一台投影机达到观赏立体影像的目的。
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明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仅用以解释本发明，并不用于限定本发明。
本发明提供一种偏光眼镜。
请参见图1，为本发明偏光眼镜的示意图，该偏光眼镜100包括：左镜片101、右镜片102、眼镜框架103；
请参见图2，为左镜片的示意图，该左镜片101，设置于眼镜框架103上，包括：左镜片四分之一波片1011、左镜片偏光板1012；
左镜片四分之一波片1011，用于透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光；
左镜片偏光板1012，用于透过该线偏振光；
请参见图3，为右镜片的示意图，该右镜片102，设置于眼镜框架103上，包括：右镜片四分之一波片1021、右镜片偏光板1022；
右镜片四分之一波片1021，用于透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光；
右镜片偏光板1022，用于透过该线偏振光；
左镜片偏光板1012的极性方向与右镜片偏光板1022的极性方向不相平行。
其中，左镜片四分之一波片1011透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光的过程包括：
左镜片四分之一波片1011透过振动方向与其快轴成预定角度一的椭圆偏振光，将透过的椭圆偏振光转变为线偏振光。
其中，右镜片四分之一波片1021透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光的过程包括：
右镜片四分之一波片1021透过振动方向与其快轴成预定角度二的椭圆偏振光，将透过的椭圆偏振光转变为线偏振光。
其中，左镜片偏光板1012透过该线偏振光的过程包括：
极性方向与左镜片四分之一波片1011的快轴成预定角度一，用于透过该线偏振光；或者极性方向与该线偏振光的振动方向相平行，用于透过该线偏振光。
其中，右镜片偏光板1022透过该线偏振光的过程包括：
极性方向与右镜片四分之一波片1021的快轴成预定角度二，用于透过该线偏振光；或者极性方向与该线偏振光的振动方向相平行，用于透过该线偏振光。
其中，左镜片四分之一波片1011透过振动方向与其快轴成45度角的圆偏振光，将透过的圆偏振光转变为线偏振光。
其中，右镜片四分之一波片1021透过振动方向与其快轴成45度角的圆偏振光，将透过的圆偏振光转变为线偏振光。
其中，左镜片偏光板1012极性方向与左镜片四分之一波片1011的快轴成45度角，用于透过该线偏振光；或者极性方向与该线偏振光的振动方向相平行，用于透过该线偏振光。
其中，右镜片偏光板1022极性方向与右镜片四分之一波片1021的快轴成45度角，用于透过该线偏振光；或者极性方向与该线偏振光的振动方向相平行，用于透过该线偏振光。
本发明还提供一种偏光滤波器。
请参见图4，为本发明偏光滤波器的示意图，该偏光滤波器400包括：电场选择器401、电场提供器402、起偏器403。
其中，电场选择器401，用于选择预定时间，对起偏器403提供电场。
其中，电场提供器402，用于在电场选择器401选择对起偏器403提供电场时，提供电场给起偏器403。
请参见图5，为起偏器的示意图，该起偏器403包括：偏光板4031、第一导电层4032、液晶层4033、第二导电层4034、四分之一波片4035；
偏光板4031，用于透过与极性方向相平行方向的线偏振光一；
第一导电层4032，与偏光板4031相粘合，用于透过偏光板4031所透过的线偏振光一；
液晶层4033，与第一导电层4032相粘合，用于在第一导电层4032、第二导电层4034不加入电场时，旋转第一导电层4032所透过的线偏振光一预定角度，得到线偏振光二，并透过该经旋转后得到的线偏振光二；在电场提供器402提供电场给第一导电层4032、第二导电层4034时，透过第一导电层4032所透过的线偏振光一；
第二导电层4034，与液晶层4033相粘合，用于透过液晶层4033所透过的线偏振光一、线偏振光二；
四分之一波片4035，与第二导电层4034相粘合，用于透过第二导电层4034所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；透过第二导电层4034所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
其中，电场选择器401选择预定时间，对起偏器403提供电场的过程包括：
电场选择器401选择在N/120秒时，对起偏器403提供电场，其中的N包括奇数、偶数。
其中，第一导电层4032包括氧化铟锡（ITO）导电玻璃，与偏光板4031相粘合，用于透过偏光板4031所透过的线偏振光一。
其中，第二导电层4034包括氧化铟锡ITO导电玻璃，与液晶层4033相粘合，用于透过液晶层4033所透过的线偏振光一、线偏振光二。
其中，液晶层4033包括扭曲向列（TN）型液晶层，与第一导电层4032相粘合，用于在第一导电层4032、第二导电层4034不加入电场时，旋转第一导电层4032所透过的线偏振光一90度，得到线偏振光二，并透过该经旋转后得到的线偏振光二；在电场提供器402提供电场给第一导电层4032、第二导电层4034时，透过第一导电层4032所透过的线偏振光一。
其中，液晶层4033包括超级扭曲向列（STN）型液晶层，与第一导电层4032相粘合，用于在第一导电层4032、第二导电层4034不加入电场时，旋转第一导电层4032所透过的线偏振光一270度，得到线偏振光二，并透过该经旋转后得到的线偏振光二；在电场提供器402提供电场给第一导电层4032、第二导电层4034时，透过第一导电层4032所透过的线偏振光一。
其中，电场选择器401包括电源选通器，用于选择预定时间，对起偏器403提供电场。
其中，电场提供器402包括电源，用于在电场选择器401选择对起偏器403提供电场时，提供电场给起偏器403。
其中，四分之一波片4035透过第二导电层4034所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一的过程包括：
四分之一波片4035透过振动方向与其快轴成预定角度一的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一。
其中，四分之一波片4035透过第二导电层4034所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二的过程包括：
四分之一波片4035透过振动方向与其快轴成预定角度二的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
其中，四分之一波片4035透过振动方向与其快轴成45度角的线偏振光一，将透过的线偏振光一转变为圆偏振光一。
其中，四分之一波片4035透过振动方向与其快轴成45度角的线偏振光二，将透过的线偏振光二转变为圆偏振光二。
本发明又提供一种投影机。
请参见图4-6，为本发明投影机的示意图，该投影机600包括：投射设备601、偏光滤波器602；偏光滤波器602可以是上述的偏光滤波器400。
投射设备601，用于投射图像信号光线；
偏光滤波器602，设置于投射设备601所投射出的图像信号光线的传递路径上，包括：电场选择器401、电场提供器402、起偏器403；
电场选择器401，用于选择预定时间，对起偏器403提供电场；
电场提供器402，用于在电场选择器401选择对起偏器403提供电场时，提供电场给起偏器403；
起偏器403，包括：偏光板4031、第一导电层4032、液晶层4033、第二导电层4034、四分之一波片4035；
偏光板4031，用于透过与极性方向相平行方向的光线，透过投射设备601所投射出的图像信号光线，得到线偏振光一；
第一导电层4032，与偏光板4031相粘合，用于透过偏光板4031所透过的线偏振光一；
液晶层4033，与第一导电层4032相粘合，用于在第一导电层4032、第二导电层4034不加入电场时，旋转第一导电层4032所透过的线偏振光一预定角度，得到线偏振光二，并透过该经旋转后得到的线偏振光二；在电场提供器402提供电场给第一导电层4032、第二导电层4034时，透过第一导电层4032所透过的线偏振光一；
第二导电层4034，与液晶层4033相粘合，用于透过液晶层4033所透过的线偏振光一、线偏振光二；
四分之一波片4035，与第二导电层4034相粘合，用于透过第二导电层4034所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；透过第二导电层4034所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
其中，电场选择器401选择预定时间，对起偏器403提供电场的过程包括：
电场选择器401选择在N/120秒时，对起偏器403提供电场，其中的N包括奇数、偶数。
其中，第一导电层4032包括氧化铟锡ITO导电玻璃，与偏光板4031相粘合，用于透过偏光板4031所透过的线偏振光一。
其中，第二导电层4034包括氧化铟锡ITO导电玻璃，与液晶层4033相粘合，用于透过液晶层4033所透过的线偏振光一、线偏振光二。
其中，液晶层4033包括扭曲向列TN型液晶层，与第一导电层4032相粘合，用于在第一导电层4032、第二导电层4034不加入电场时，旋转第一导电层4032所透过的线偏振光一90度，得到线偏振光二，并透过该经旋转后得到的线偏振光二；在电场提供器402提供电场给第一导电层4032、第二导电层4034时，透过第一导电层4032所透过的线偏振光一。
其中，液晶层4033包括超级扭曲向列STN型液晶层，与第一导电层4032相粘合，用于在第一导电层4032、第二导电层4034不加入电场时，旋转第一导电层4032所透过的线偏振光一270度，得到线偏振光二，并透过该经旋转后得到的线偏振光二；在电场提供器402提供电场给第一导电层4032、第二导电层4034时，透过第一导电层4032所透过的线偏振光一。
其中，电场选择器401包括电源选通器，用于选择预定时间，对起偏器403提供电场。
其中，电场提供器402包括电源，用于在电场选择器401选择对起偏器403提供电场时，提供电场给起偏器403。
其中，四分之一波片4035透过第二导电层4034所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一的过程包括：
四分之一波片4035透过振动方向与其快轴成预定角度一的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一。
其中，四分之一波片4035透过第二导电层4034所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二的过程包括：
四分之一波片4035透过振动方向与其快轴成预定角度二的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
其中，四分之一波片4035透过振动方向与其快轴成45度角的线偏振光一，将透过的线偏振光一转变为圆偏振光一。
其中，四分之一波片4035透过振动方向与其快轴成45度角的线偏振光二，将透过的线偏振光二转变为圆偏振光二。
其中，投射设备601包括：数字光处理DLP投影机，用于投射图像信号光线；或硅基液晶LCOS投影机，用于投射图像信号光线；或液晶LCD投影机，用于投射图像信号光线。
其中，偏光滤波器602的偏振频率可以与节目源的播放频率相同。
其中，偏光滤波器602按预定时间如每秒120帧的频率所产生的交替的图像信号光线可以与投射设备601所投射出的图像信号光线同步。
本发明投影机600应用偏光滤波器602按预定时间如每秒120帧的频率产生交替的图像信号光线，各图像帧按顺序交替，而且该产生的交替的图像信号光线经投影屏幕反射至偏光眼镜时光线的振动方向不会改变，观看者通过偏光眼镜左镜片、右镜片只能看到相应的图像，即观看者通过偏光眼镜接收到一个左眼帧，接下来一个右眼帧，然后再一个左眼帧，接下来又一个右眼帧，从而在视觉神经系统中产生立体感觉，达到观赏立体影像的目的，从而达到实现通过一台投影机达到观赏立体影像的目的。
本发明再提供一种立体影像系统。
请参见图1、图4和图7，为本发明立体影像系统的示意图，该立体影像系统700包括：投影机701、投影屏幕702、偏光眼镜703。投影机701可以是上述的投影机600，偏光眼镜703可以是上述的偏光眼镜100。
投影屏幕702，设置于投影机701中偏光滤波器400所透过的光线即椭圆偏振光一、椭圆偏振光二的传递路径上，用于反射偏光滤波器400所透过的椭圆偏振光一，得到椭圆偏振光三；反射偏光滤波器400所透过的椭圆偏振光二，得到椭圆偏振光四；该得到的椭圆偏振光三的振动方向与椭圆偏振光一的振动方向相同，该得到的椭圆偏振光四的振动方向与椭圆偏振光二的振动方向相同。本发明立体影像系统700应用投影机701按预定时间如每秒120帧的频率产生交替的图像信号光线，各图像帧按顺序交替，而且该产生的交替的图像信号光线经投影屏幕702反射至偏光眼镜703时光线的振动方向不会改变，观看者通过偏光眼镜703左镜片101、右镜片102只能看到相应的图像，即观看者通过偏光眼镜703接收到一个左眼帧，接下来一个右眼帧，然后再一个左眼帧，接下来又一个右眼帧，从而在视觉神经系统中产生立体感觉，达到观赏立体影像的目的，从而达到实现通过一台投影机达到观赏立体影像的目的。
对于本发明偏光眼镜、偏光滤波器、投影机、立体影像系统，实现的形式是多种多样的。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保护范围之内。

Claims (16)

  1. 一种偏光眼镜，其特征在于，包括：左镜片、右镜片、眼镜框架；
    所述左镜片，设置于所述眼镜框架上，包括：左镜片四分之一波片、左镜片偏光板；
    所述左镜片四分之一波片，用于透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光；
    所述左镜片偏光板，用于透过所述线偏振光；
    所述右镜片，设置于所述眼镜框架上，包括：右镜片四分之一波片、右镜片偏光板；
    所述右镜片四分之一波片，用于透过椭圆偏振光，将透过的椭圆偏振光转变为线偏振光；
    所述右镜片偏光板，用于透过所述线偏振光；
    所述左镜片偏光板的极性方向与所述右镜片偏光板的极性方向不相平行。
  2. 如权利要求1所述的偏光眼镜，其特征在于，所述左镜片四分之一波片透过振动方向与其快轴成45度角的圆偏振光，将透过的圆偏振光转变为线偏振光；
    所述右镜片四分之一波片透过振动方向与其快轴成45度角的圆偏振光，将透过的圆偏振光转变为线偏振光；
    所述左镜片偏光板，极性方向与所述左镜片四分之一波片的快轴成45度角，用于透过所述线偏振光；或者极性方向与所述线偏振光的振动方向相平行，用于透过所述 线偏振光；
    所述右镜片偏光板，极性方向与所述右镜片四分之一波片的快轴成45度角，用于透过所述线偏振光；或者极性方向与所述线偏振光的振动方向相平行，用于透过所述线偏振光。
  3. 一种偏光滤波器，其特征在于，包括：电场选择器、电场提供器、起偏器；
    所述电场选择器，用于选择预定时间，对所述起偏器提供电场；
    所述电场提供器，用于在所述电场选择器选择对所述起偏器提供电场时，提供电场给所述起偏器；
    所述起偏器包括：偏光板、第一导电层、液晶层、第二导电层、四分之一波片；
    所述偏光板，用于透过与极性方向相平行方向的线偏振光一；
    所述第一导电层，与所述偏光板相粘合，用于透过所述偏光板所透过的线偏振光一；
    所述液晶层，与所述第一导电层相粘合，用于在所述第一导电层、第二导电层不加入电场时，旋转所述第一导电层所透过的线偏振光一预定角度，得到线偏振光二，并透过所述经旋转后得到的线偏振光二；在所述电场提供器提供电场给所述第一导电层、第二导电层时，透过所述第一导电层所透过的线偏振光一；
    所述第二导电层，与所述液晶层相粘合，用于透过所述液晶层所透过的线偏振光一、线偏振光二；
    所述四分之一波片，与所述第二导电层相粘合，用于透过所述第二导电层所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；透过所述第二导电层所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
  4. 如权利要求3所述的偏光滤波器，其特征在于，所述四分之一波片透过振动方向与其快轴成预定角度一的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；
    所述四分之一波片透过振动方向与其快轴成预定角度二的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
  5. 如权利要求3所述的偏光滤波器，其特征在于，所述四分之一波片透过振动方向与其快轴成45度角的线偏振光一，将透过的线偏振光一转变为圆偏振光一；
    所述四分之一波片透过振动方向与其快轴成45度角的线偏振光二，将透过的线偏振光二转变为圆偏振光二。
  6. 如权利要求3所述的偏光滤波器，其特征在于，所述电场选择器选择在N/120秒时，对所述起偏器提供电场，所述N包括奇数、偶数。
  7. 如权利要求3所述的偏光滤波器，其特征在于，所述第一导电层和所述第二导电层包括氧化铟锡ITO导电玻璃。
  8. 如权利要求3所述的偏光滤波器，其特征在于，所述液晶层为扭曲向列TN型或超级扭曲向列STN型。
  9. 一种投影机，其特征在于，包括：投射设备、偏光滤波器；
    所述投射设备，用于投射图像信号光线；
    所述偏光滤波器，设置于所述投射设备所投射出的图像信号光线的传递路径上，包括：电场选择器、电场提供器、起偏器；
    所述电场选择器，用于选择预定时间，对所述起偏器提供电场；
    所述电场提供器，用于在所述电场选择器选择对所述起偏器提供电场时，提供电场给所述起偏器；
    所述起偏器，包括：偏光板、第一导电层、液晶层、第二导电层、四分之一波片；
    所述偏光板，用于透过与极性方向相平行方向的光线，透过所述投射设备所投射出的图像信号光线，得到线偏振光一；
    所述第一导电层，与所述偏光板相粘合，用于透过所述偏光板所透过的线偏振光一；
    所述液晶层，与所述第一导电层相粘合，用于在所述第一导电层、第二导电层不加入电场时，旋转所述第一导电层所透过的线偏振光一预定角度，得到线偏振光二， 并透过所述经旋转后得到的线偏振光二；在所述电场提供器提供电场给所述第一导电层、第二导电层时，透过所述第一导电层所透过的线偏振光一；
    所述第二导电层，与所述液晶层相粘合，用于透过所述液晶层所透过的线偏振光一、线偏振光二；
    所述四分之一波片，与所述第二导电层相粘合，用于透过所述第二导电层所透过的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；透过所述第二导电层所透过的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
  10. 如权利要求9所述的投影机，其特征在于，所述四分之一波片透过振动方向与其快轴成预定角度一的线偏振光一，将透过的线偏振光一转变为椭圆偏振光一；
    所述四分之一波片透过振动方向与其快轴成预定角度二的线偏振光二，将透过的线偏振光二转变为椭圆偏振光二。
  11. 如权利要求9所述的投影机，其特征在于，所述四分之一波片透过振动方向与其快轴成45度角的线偏振光一，将透过的线偏振光一转变为圆偏振光一；
    所述四分之一波片透过振动方向与其快轴成45度角的线偏振光二，将透过的线偏振光二转变为圆偏振光二。
  12. 如权利要求9所述的投影机，其特征在于，所述电场选择器选择在N/120秒时，对所述起偏器提供电场，所述N包括奇数、偶数。
  13. 如权利要求9所述的投影机，其特征在于，所述第一导电层和所述第二导电层包括氧化铟锡ITO导电玻璃。
  14. 如权利要求9所述的投影机，其特征在于，所述液晶层为扭曲向列TN型或超级扭曲向列STN型。
  15. 如权利要求9所述的投影机，其特征在于，所述偏光滤波器的偏振频率与节目源的播放频率相同。
  16. 如权利要求9所述的投影机，其特征在于，所述投射设备包括：数字光处理DLP投影机，用于投射图像信号光线；或硅基液晶LCOS投影机，用于投射图像信号光线；或液晶LCD投影机，用于投射图像信号光线。
PCT/CN2011/084852 2011-02-28 2011-12-28 偏光眼镜、偏光滤波器、投影机 WO2012116570A1 (zh)

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