WO2012126267A1 - 投影机及其立体影像系统 - Google Patents

投影机及其立体影像系统 Download PDF

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Publication number
WO2012126267A1
WO2012126267A1 PCT/CN2011/084855 CN2011084855W WO2012126267A1 WO 2012126267 A1 WO2012126267 A1 WO 2012126267A1 CN 2011084855 W CN2011084855 W CN 2011084855W WO 2012126267 A1 WO2012126267 A1 WO 2012126267A1
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WO
WIPO (PCT)
Prior art keywords
image signal
signal light
polarized image
polarized
light
Prior art date
Application number
PCT/CN2011/084855
Other languages
English (en)
French (fr)
Inventor
刘美鸿
Original Assignee
深圳市亿思达显示科技有限公司
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Application filed by 深圳市亿思达显示科技有限公司 filed Critical 深圳市亿思达显示科技有限公司
Publication of WO2012126267A1 publication Critical patent/WO2012126267A1/zh

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    • 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
    • H04N13/363—Image reproducers using image projection screens
    • 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
    • G03B35/16—Stereoscopic photography by sequential viewing
    • 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
    • G02B30/24—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 involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • 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]
    • H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • 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

Definitions

  • the present invention relates to the field of projection technology, and in particular, to a projector and a stereoscopic image system.
  • a projector is a device for projecting image signal light onto a projection screen.
  • the existing projector includes a digital light processing (DLP) projector, a liquid crystal on silicon (LCOS) projector, and a liquid crystal display (LCD). Projector.
  • DLP digital light processing
  • LCOS liquid crystal on silicon
  • LCD liquid crystal display
  • FIG. 1 is a schematic diagram of a conventional projector.
  • the projector 100 includes:
  • An image signal processing device 101 configured to generate image signal light
  • the projection lens 102 is disposed on a transmission path of the image signal light generated by the image signal processing device 101 for projecting the generated image signal light onto the projection screen for imaging.
  • the digital light processing type projector 200 includes: a digital light processing type image signal processing device 201, a projection lens 202;
  • the digital light processing type image signal processing device 201 is configured to generate image signal light, including:
  • the relay lens 2012 is disposed on the transmission path of the light provided by the light source 2011 for projecting the light provided by the light source 2011 onto the digital micromirror device (DMD) 2013;
  • DMD digital micromirror device
  • the digital micromirror device 2013 is disposed on the transmission path of the light provided by the light source 2011, and includes a plurality of micromirrors (not shown), and each of the micromirrors exhibits a state including an ON state, an OFF state, and an OFF state.
  • the lens 202 the light reflected to the projection lens 202 becomes an image, that is, an image signal light is generated;
  • the projection lens 202 is disposed on the transmission path of the light provided by the light source 2011 for projecting the generated image signal light onto the projection screen for imaging.
  • the liquid crystal liquid crystal projector 300 includes: a liquid crystal liquid crystal type image signal processing device 301, a projection lens 302;
  • the liquid crystal display type image signal processing device 301 is configured to generate image signal light, including:
  • the light splitting system 3012 is disposed on the transmission path of the light provided by the light source 3011, and is configured to divide the light provided by the light source 3011 into three colors of red light, green light, and blue light, and project the red light to the refractor mirror 3013 to emit green light. Projected to the liquid crystal on silicon imaging system 3015, the blue light is projected to the refractor 2304;
  • a refractor mirror 3013 disposed on the red light transmission path for refracting the red light to the silicon-based liquid crystal imaging system 3015;
  • a refractor 2304 is disposed on the transmission path of the blue light for refracting the blue light to the silicon-based liquid crystal imaging system 3015;
  • the liquid crystal on silicon imaging system 3015 is disposed on the transmission path of the three colors of red, green, and blue light, and is used for color combining the three colors of red, green, and blue light to perform image modulation to form an image to generate image signal light. ;
  • the projection lens 302 is disposed on a transmission path of the image signal light generated by the liquid crystal on-type image signal processing device 301, and is used for projecting the generated image signal light onto the projection screen for imaging.
  • the liquid crystal projector 400 includes a liquid crystal image signal processing device 401 and a projection lens 402.
  • the projection lens 402 is disposed on a transmission path of the image signal light generated by the liquid crystal image signal processing device 401 for projecting the generated image signal light onto the projection screen for imaging.
  • the design represented by Figure 2 is not the only possible method for constructing a digital light processing projector.
  • the design represented by Figure 3 is not the only possible method for forming a liquid crystal liquid crystal projector.
  • the design represented by Figure 4 is also It is not the only possible method of constituting a liquid crystal projector, and these figures are drawn for the purpose of example only.
  • Stereoscopic projection is realized by the principle of polarization of light.
  • the existing scheme of realizing stereoscopic projection is to use two projectors to simultaneously project the image, and the polarization directions of the polarizers in front of the two projectors are perpendicular to each other, so that the two generated
  • the polarization directions of the beam polarized light are also perpendicular to each other, and the direction of the polarized light does not change when the polarized light is projected onto the dedicated projection screen and then reflected to the viewer position, and the viewer can only see the corresponding polarized light through the left and right eyes of the polarized glasses.
  • the image so as to create a stereoscopic feeling in the visual nervous system, to achieve the purpose of viewing stereoscopic images, the prior art can not achieve the purpose of viewing stereoscopic images through a projector.
  • the technical problem to be solved by the present invention is to provide a projector and a stereoscopic image system.
  • An object of the present invention is to provide a projector including: an image signal processing device, a polarizing filter, and a projection lens;
  • the image signal processing device is configured to generate image signal light
  • the polarizing filter is disposed on a transmission path of the image signal light generated by the image signal processing 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, and when the electric field selector selects N/120 seconds, an electric field is provided to the polarizer, wherein the N includes an odd number and an even number;
  • 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 light of a polarized image signal by transmitting light of an image signal generated by the image signal processing device through light rays in a direction parallel to a polarity direction;
  • the first conductive layer is adhered to the polarizing plate for transmitting the polarized image signal light
  • the liquid crystal layer is adhered to the first conductive layer, and is configured to rotate the 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 a polarized image signal ray 2 and transmitting the polarized image signal ray 2; transmitting the polarized image when the electric field provider supplies an electric field to the first conductive layer and the second conductive layer Signal light
  • the second conductive layer is adhered to the liquid crystal layer for transmitting a polarized image signal light transmitted through the liquid crystal layer, and a polarized image signal light 2;
  • the quarter-wave plate is bonded to the second conductive layer for transmitting a polarized image signal light having a direction of vibration transmitted through the second conductive layer at a predetermined angle to the fast axis thereof. Converting the transmitted polarized image signal light into a polarized image signal light 3; transmitting the polarized light through the second conductive layer and transmitting the polarized image signal light at a predetermined angle to the fast axis The image signal light is converted into a polarized image signal light four;
  • the projection lens is disposed on the transmission path of the polarized image signal light 3 and the polarized image signal light 4 for projecting the polarized image signal light 3 and the polarized image signal light 4 to image on the projection screen.
  • An object of the present invention is to provide a projector, including: an image signal processing device, a polarizing filter, and a projection lens;
  • the image signal processing device is configured to generate image signal light
  • the polarizing filter is disposed on a transmission path of the image signal light generated by the image signal processing 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 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 light of a polarized image signal by transmitting light of an image signal generated by the image signal processing device through light rays in a direction parallel to a polarity direction;
  • the first conductive layer is adhered to the polarizing plate for transmitting the polarized image signal light
  • the liquid crystal layer is adhered to the first conductive layer, and is configured to rotate the 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 a polarized image signal ray 2 and transmitting the polarized image signal ray 2; transmitting the polarized image when the electric field provider supplies an electric field to the first conductive layer and the second conductive layer Signal light
  • the second conductive layer is adhered to the liquid crystal layer for transmitting a polarized image signal light transmitted through the liquid crystal layer, and a polarized image signal light 2;
  • the quarter-wave plate is bonded to the second conductive layer for transmitting a polarized image signal light transmitted through the second conductive layer
  • the polarized image signal light ray 2 is transmitted through the second conductive layer; the transmitted polarized image signal light ray 2 is converted into the polarized image signal light ray 4;
  • the projection lens is disposed on the transmission path of the polarized image signal light 3 and the polarized image signal light 4 for projecting the polarized image signal light 3 and the polarized image signal light 4 to image on the projection screen.
  • the object of the present invention is to provide a stereoscopic image system, including: a projector, a projection screen, and polarized glasses;
  • the projector includes: an image signal processing device, a polarizing filter, and a projection lens;
  • the image signal processing device is configured to generate image signal light
  • the polarizing filter is disposed on a transmission path of the image signal light generated by the image signal processing 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 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 light of a polarized image signal by transmitting light of an image signal generated by the image signal processing device through light rays in a direction parallel to a polarity direction;
  • the first conductive layer is adhered to the polarizing plate for transmitting the polarized image signal light
  • the liquid crystal layer is adhered to the first conductive layer, and is configured to rotate the 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 a polarized image signal ray 2 and transmitting the polarized image signal ray 2; transmitting the polarized image when the electric field provider supplies an electric field to the first conductive layer and the second conductive layer Signal light
  • the second conductive layer is adhered to the liquid crystal layer for transmitting a polarized image signal light transmitted through the liquid crystal layer, and a polarized image signal light 2;
  • the quarter-wave plate is bonded to the second conductive layer for transmitting a polarized image signal light transmitted through the second conductive layer
  • the polarized image signal light ray 2 is transmitted through the second conductive layer; the transmitted polarized image signal light ray 2 is converted into the polarized image signal light ray 4;
  • the projection lens is disposed on the transmission path of the polarized image signal light 3 and the polarized image signal light 4, and is configured to transmit the transmitted polarized image signal light into three through the polarized image signal light Polarizing the image signal ray five, and projecting the polarized image signal ray five to image on the projection screen; transmitting the transmitted polarized image signal ray four into a polarized image signal ray through the polarized image signal ray four And projecting the polarized image signal light 6 onto the projection screen; the direction of vibration of the polarized image signal light 5 is parallel to the vibration direction of the polarized image signal light 3, and the vibration of the polarized image signal light 6 The direction is parallel to the vibration direction of the polarized image signal light four;
  • the projection screen is disposed on a transmission path of the polarized image signal light ray 5 and the polarized image signal light ray projected by the projection lens in the projector, and is used for reflecting the polarized image signal light ray to obtain a polarization image.
  • the polarized glasses are disposed on a transmission path of the polarized image signal light 7 and the polarized image signal light 8 obtained by being reflected by the projection screen, and include: a left lens, a right lens, and a glasses frame;
  • 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 convert the transmitted polarized image signal light seven into a polarized image signal light ray through the polarized image signal light VII obtained by being reflected by the projection screen;
  • the left lens polarizing plate is configured to transmit the polarized image signal light IX;
  • 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 the polarized image signal light eight obtained by the reflection through the projection screen into a polarized image signal light ray;
  • the right lens polarizing plate is configured to transmit light of the polarized image signal
  • the polarity direction of the left lens polarizer is not parallel to the polarity direction of the right lens polarizer.
  • the projector of the present invention applies a polarizing filter to generate polarized image signal rays alternated at a predetermined time, for example, 120 frames per second, and each image frame is alternated in order, and then the projection lens converts the polarized image signal light into a vibration direction parallel and polarized.
  • the new polarized image signal light of constant frequency, and the new polarized image signal light is reflected by the projection screen to the polarized glasses, the vibration direction of the light does not change, and the viewer can only see the corresponding lens through the left lens and the right lens of the polarized glasses.
  • the image that is, the viewer receives a left eye frame through the polarized glasses, the next right eye frame, then another left eye frame, and then another right eye frame, thereby generating a stereoscopic feeling in the visual nervous system to achieve viewing.
  • the purpose of the stereoscopic image is to achieve the purpose of achieving stereoscopic images through a projector.
  • the stereoscopic image system of the present invention applies a projector to generate alternating polarized 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 polarized 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.
  • Figure 1 is a schematic view of a conventional projector
  • FIG. 2 is a schematic view of an embodiment of a conventional digital light processing projector
  • FIG. 3 is a schematic view of an embodiment of a conventional liquid crystal liquid crystal projector
  • FIG. 4 is a schematic view of an embodiment of a conventional liquid crystal projector
  • Figure 5 is a schematic view of the projector of the present invention.
  • Figure 6 is a schematic illustration of a stereoscopic image system of the present invention.
  • the invention provides 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 polarized image signal light alternated at a frequency of 120 frames per second for a predetermined time, and each image frame is alternated in order.
  • the projection lens converts the polarized image signal light into a new polarized image signal light whose vibration direction is parallel and the polarization frequency is constant, and the light of the new polarized image signal is reflected by the projection screen to the polarized glasses.
  • 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 frame, then Another right eye frame creates a stereoscopic feeling in the visual nervous system and achieves the purpose of viewing stereoscopic images, thereby achieving the purpose of achieving stereoscopic images through a projector.
  • the invention provides a projector.
  • the projector 500 includes: an image signal processing device 501, a polarizing filter 502, a projection lens 503;
  • An image signal processing device 501 configured to generate image signal light
  • the polarizing filter 502 is disposed on the transmission path of the image signal light generated by the image signal processing device 501, and includes: an electric field selector 5021, an electric field provider 5022, and a polarizer 5023;
  • An electric field selector 5021 for selecting a predetermined time to provide an electric field to the polarizer 5023;
  • the electric field provider 5022 is configured to provide an electric field to the polarizer 5023 when the electric field selector 5021 selects to supply an electric field to the polarizer 5023;
  • the polarizer 5023 includes: a polarizing plate 50231, a first conductive layer 50232, a liquid crystal layer 50233, a second conductive layer 50234, a quarter wave plate 50235;
  • the polarizing plate 50231 is configured to transmit light of the image signal generated by the image signal processing device 501 through the light in a direction parallel to the polarity direction to obtain a linearly polarized light, that is, obtain a polarized image signal light;
  • the first conductive layer 50232 is adhered to the polarizing plate 50231 for transmitting the polarized image signal light 1;
  • the liquid crystal layer 50233 is bonded to the first conductive layer 50232 for rotating the light transmitted by the first conductive layer 50232 by a predetermined angle when the first conductive layer 50232 and the second conductive layer 50234 are not added with an electric field, thereby obtaining linear polarization.
  • Light 2 that is, a polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; when the electric field provider 5022 supplies an electric field to the first conductive layer 50232 and the second conductive layer 50234, the polarization is transmitted.
  • Image signal light that is, a polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; when the electric field provider 5022 supplies an electric field to the first conductive layer 50232 and the second conductive layer 50234, the polarization is transmitted.
  • the second conductive layer 50234 is adhered to the liquid crystal layer 50233 for transmitting the polarized image signal light transmitted by the liquid crystal layer 50233, and the polarized image signal light 2;
  • the quarter wave plate 50235 is bonded to the second conductive layer 50234 for transmitting the polarized image signal light transmitted through the second conductive layer 50234 into an elliptically polarized light.
  • Light one that is, converted into polarized image signal light three;
  • the transmitted polarized image signal light is converted into elliptically polarized light two, that is, converted into polarized image signal light four;
  • the projection lens 503 is disposed on the transmission path of the polarized image signal light 3 and the polarized image signal light 4 for projecting the polarized image signal light 3 and the polarized image signal light 4 to image on the projection screen, including: transmitting the polarized image Signal light three, the transmitted polarized image signal light three is converted into elliptically polarized light three, that is, converted into polarized image signal light five, and the polarized image signal light is projected to the projection screen for imaging; the transmitted polarization The image signal light is converted into elliptically polarized light four, that is, converted into a polarized image signal light six, and the polarized image signal light 6 is projected onto the projection screen for imaging; the polarized image signal ray five is vibrating direction and the polarized image signal is ray three The vibrating directions are parallel, and the vibrating direction of the polarized image signal light ray is parallel to the vibrating direction of the polarized image signal ray four.
  • the electric field selector 5021 selects a predetermined time
  • the process of providing an electric field to the polarizer 5023 includes:
  • the electric field selector 5021 selects an electric field to be applied to the polarizer 5023 at N/120 seconds, where N includes odd and even numbers.
  • the first conductive layer 50232 includes indium tin oxide (ITO) conductive glass, and is bonded to the polarizing plate 50231 for transmitting the polarized image signal light.
  • ITO indium tin oxide
  • the second conductive layer 50234 includes indium tin oxide ITO conductive glass, and is bonded to the liquid crystal layer 50233 for transmitting the polarized image signal light transmitted through the liquid crystal layer 50233 and the polarized image signal light.
  • the liquid crystal layer 50233 includes a twisted nematic (TN) type liquid crystal layer and is bonded to the first conductive layer 50232 for rotating the first conductive layer when the first conductive layer 50232 and the second conductive layer 50234 do not add an electric field.
  • the light transmitted by the 50232 is 90 degrees, the polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; the electric field is supplied to the first conductive layer 50232 and the second conductive layer 50234 by the electric field provider 5022.
  • the electric field is supplied to the first conductive layer 50232 and the second conductive layer 50234 by the electric field provider 5022.
  • the liquid crystal layer 50233 includes a super twisted nematic (STN) type liquid crystal layer, and is adhered to the first conductive layer 50232 for rotating the first conductive layer when the first conductive layer 50232 and the second conductive layer 50234 do not add an electric field.
  • the light transmitted by the layer 50232 is 270 degrees, the polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; the electric field is supplied to the first conductive layer 50232 and the second conductive layer by the electric field provider 5022.
  • the light is transmitted through the polarized image signal.
  • the electric field selector 5021 includes a power supply gate for selecting a predetermined time to provide an electric field to the polarizer 5023.
  • the electric field provider 5022 includes a power source for providing an electric field to the polarizer 5023 when the electric field selector 5021 selects to supply an electric field to the polarizer 5023.
  • the process of converting the transmitted polarized image signal light into the polarized image signal light by the quarter wave plate 50235 through the polarized image signal light transmitted by the second conductive layer 50234 includes:
  • the quarter-wave plate 50235 converts the transmitted polarized image signal light into a polarized image signal light 3 by transmitting a polarized image signal light whose vibration direction is at a predetermined angle to the fast axis.
  • the process of converting the transmitted polarized image signal light into the polarized image signal light by the quarter wave plate 50235 through the polarized image signal light 2 transmitted by the second conductive layer 50234 includes:
  • the quarter-wave plate 50235 converts the transmitted polarized image signal light into a polarized image signal light by transmitting a polarized image signal light of a predetermined angle two to the fast axis.
  • the quarter wave plate 50235 transmits the polarized image signal light of the transmitted polarized image signal into a circularly polarized light by transmitting a polarized image signal light having a 45-degree angle with the fast axis, that is, converting into a polarized image signal light. .
  • the quarter-wave plate 50235 transmits the polarized image signal light of the transmitted polarization image signal light to the circularly polarized light 2 through the polarized image signal light having the angle of the vibration direction at a 45-degree angle to the fast axis, that is, the converted into the polarized image signal light.
  • the image signal processing device 501 includes: a digital light processing type image signal processing device for generating image signal light; or a liquid crystal on silicon type image signal processing device for generating image signal light; or a liquid crystal type image signal processing device, For generating image signal light; or display device for generating image signal light, the display device includes a television, a computer, a projector, a navigator, a mobile phone, a camera.
  • the polarization frequency of the polarization filter 502 can be the same as the playback frequency of the program source.
  • the alternating polarized image signal light generated by the polarizing filter 502 at a predetermined time may be synchronized with the image signal light generated by the image signal processing device 501, and the image corresponding to the polarized image signal light.
  • the frames alternate in order.
  • the projector 500 of the present invention applies the polarizing filter 502 to generate polarized image signal rays alternated at a predetermined time, for example, 120 frames per second, and the image frames are alternated in order, and then the projection lens 503 converts the polarized image signal light into a vibration direction phase.
  • a new polarized image signal light that is parallel and has a constant polarization frequency, and the direction of vibration of the light is not changed when the new polarized image signal light is reflected to the polarized glasses through the projection screen, and the viewer can only use the left lens and the right lens of the polarized glasses.
  • Seeing the corresponding image that is, the viewer receives a left eye frame through the polarized glasses, the next right eye frame, then another left eye frame, and then another right eye frame, thereby generating a stereoscopic feeling in the visual nervous system.
  • the viewer receives a left eye frame through the polarized glasses, the next right eye frame, then another left eye frame, and then another right eye frame, thereby generating a stereoscopic feeling in the visual nervous system.
  • the invention also provides a stereoscopic image system.
  • the stereoscopic image system 600 includes: a projector 601, a projection screen 602, and polarized glasses 603;
  • the projector 601 includes: an image signal processing device 6011, a polarization filter 6012, and a projection lens 6013;
  • the image signal processing device 6011 is configured to generate image signal light
  • the polarizing filter 6012 is disposed on the transmission path of the image signal light generated by the image signal processing device 6011, and includes: an electric field selector 60121, an electric field provider 60122, and a polarizer 60123;
  • An electric field selector 60121 for selecting a predetermined time to provide an electric field to the polarizer 60123;
  • the electric field provider 60122 is configured to provide an electric field to the polarizer 60123 when the electric field selector 60121 selects to supply an electric field to the polarizer 60123;
  • the polarizer 60123 includes: a polarizing plate 601231, a first conductive layer 601232, a liquid crystal layer 601233, a second conductive layer 601234, a quarter wave plate 601235;
  • the polarizing plate 601231 is configured to transmit the light of the image signal generated by the image signal processing device 6011 through the light in the direction parallel to the polarity direction to obtain the linearly polarized light, that is, the polarized image signal light is obtained;
  • the first conductive layer 601232 is adhered to the polarizing plate 601231 for transmitting the polarized image signal light 1;
  • the liquid crystal layer 601233 is bonded to the first conductive layer 601232 for rotating the light transmitted by the first conductive layer 601232 by a predetermined angle when the first conductive layer 601232 and the second conductive layer 601234 are not added with an electric field, thereby obtaining linear polarization.
  • Light 2 that is, the polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; when the electric field provider 60122 supplies an electric field to the first conductive layer 601232 and the second conductive layer 601234, the polarization is transmitted.
  • the second conductive layer 601234 is adhered to the liquid crystal layer 601233 for transmitting the polarized image signal light transmitted by the liquid crystal layer 601233, and the polarized image signal light 2;
  • the quarter-wave plate 601235 is bonded to the second conductive layer 601234 for transmitting the polarized image signal light transmitted through the second conductive layer 601234 to convert the transmitted polarized image signal light into an elliptically polarized light.
  • Light one that is, converted into polarized image signal light three; through the polarized image signal light transmitted by the second conductive layer 601234, the transmitted polarized image signal light is converted into elliptically polarized light two, that is, converted into polarized image signal light four;
  • the projection lens 6013 is disposed on the transmission path of the polarized image signal light 3 and the polarized image signal light 4 for projecting the polarized image signal light 3 and the polarized image signal light 4 to image on the projection screen 602, including: transmitting the polarization
  • the image signal light three converts the transmitted polarized image signal light into three elliptically polarized light three, that is, into a polarized image signal light five, and projects the polarized image signal light five onto the projection screen 602 for imaging;
  • the image signal light is four, and the transmitted polarized image signal light is converted into elliptically polarized light four, that is, converted into a polarized image signal light six, and the polarized image signal light 6 is projected onto the projection screen 602 for imaging;
  • the polarized image signal The vibration direction of the light five is parallel to the vibration direction of the polarized image signal light three, and the vibration direction of the polarized image signal light six is parallel to the vibration direction of the polarized image signal light
  • the projection screen 602 is disposed on the transmission path of the polarized image signal light 5 and the polarized image signal light 6 projected by the projection lens 6013 in the projector 601, and is used for reflecting the polarized image signal light 5 to obtain elliptically polarized light five, that is, Obtaining a polarized image signal light VII; for reflecting the polarized image signal light six, obtaining elliptically polarized light six, that is, obtaining a polarized image signal light VIII; the obtained polarized image signal ray seven vibration direction and the polarization image signal ray five vibration The directions are parallel, and the obtained polarization direction of the polarized image signal light is parallel to the vibration direction of the polarized image signal light six;
  • the polarizing glasses 603 are disposed on the transmission path of the polarized image signal light ray 7 and the polarized image signal light ray obtained by the projection screen 602, and include: a left lens 6031, a right lens 6032, and an eyeglass frame 6033;
  • the left lens 6031 is disposed on the eyeglass frame 6033, and includes: a left lens quarter wave plate 60311 and a left lens polarizing plate 60312;
  • the left lens quarter wave plate 60311 is configured to convert the transmitted polarized image signal light into seven linearly polarized light by translating the polarized image signal light 7 obtained through the projection screen 602, that is, into a polarized image signal.
  • the right lens 6032 is disposed on the eyeglass frame 6033, and includes: a right lens quarter wave plate 60321, a right lens polarizing plate 60322;
  • the right lens quarter wave plate 60321 is configured to convert the polarized image signal light eight obtained by the reflection through the projection screen 602 into a linearly polarized light, that is, into a polarized image signal. Ten rays of light;
  • a right lens polarizing plate 60322 for transmitting light of the polarized image signal
  • the polarity direction of the left lens polarizing plate 60312 is not parallel to the polarity direction of the right lens polarizing plate 60322.
  • the electric field selector 60121 selects a predetermined time
  • the process of providing an electric field to the polarizer 60123 includes:
  • the electric field selector 60121 selects an electric field to be applied to the polarizer 60123 at N/120 seconds, where N includes an odd number and an even number.
  • the first conductive layer 601232 includes indium tin oxide ITO conductive glass and is adhered to the polarizing plate 601231 for transmitting the polarized image signal light.
  • the second conductive layer 601234 includes indium tin oxide ITO conductive glass and is adhered to the liquid crystal layer 601233 for transmitting the polarized image signal light transmitted through the liquid crystal layer 601233 and the polarized image signal light.
  • the liquid crystal layer 601233 includes a twisted nematic TN type liquid crystal layer and is adhered to the first conductive layer 601232 for rotating the first conductive layer 601232 when the first conductive layer 601232 and the second conductive layer 601234 do not add an electric field.
  • the transmitted light is 90 degrees, and the linearly polarized light is obtained, that is, the polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; the electric field is supplied to the first conductive layer 601232 by the electric field provider 60122.
  • the second conductive layer 601234 is passed, the polarized image signal light is transmitted through one.
  • the liquid crystal layer 601233 includes a super twisted nematic STN type liquid crystal layer, and is adhered to the first conductive layer 601232 for rotating the first conductive layer 601232 when the first conductive layer 601232 and the second conductive layer 601234 do not add an electric field.
  • the transmitted light is 270 degrees, and the linearly polarized light is obtained, that is, the polarized image signal light 2 is obtained, and the polarized image signal light 2 obtained by the rotation is obtained; the electric field is supplied to the first conductive layer 601232 by the electric field provider 60122, When the second conductive layer 601234 is passed through the polarized image signal light.
  • the electric field selector 60121 includes a power supply gate for selecting a predetermined time to provide an electric field to the polarizer 60123.
  • the electric field provider 60122 includes a power source for providing an electric field to the polarizer 60123 when the electric field selector 60121 selects to supply an electric field to the polarizer 60123.
  • the process of converting the transmitted polarized image signal light into the polarized image signal light by the quarter wave plate 601235 through the polarized image signal light transmitted by the second conductive layer 601234 includes:
  • the quarter-wave plate 601235 converts the transmitted polarized image signal light into a polarized image signal light by transmitting a polarized image signal light having a predetermined angle to the fast axis.
  • the process of converting the transmitted polarized image signal light into the polarized image signal light by the quarter wave plate 601235 through the polarized image signal light transmitted by the second conductive layer 601234 includes:
  • the quarter-wave plate 601235 converts the transmitted polarized image signal light into a polarized image signal light by transmitting a polarized image signal light of a predetermined angle two to the fast axis.
  • the quarter-wave plate 601235 converts the transmitted polarized image signal light into a circularly polarized light by transmitting a polarized image signal light having a 45-degree angle with the fast axis of the vibration direction, that is, converting into a polarized image signal light.
  • the quarter-wave plate 601235 transmits the polarized image signal light 2 at a 45-degree angle of the vibration direction to the fast axis thereof, and converts the transmitted polarized image signal light into two circularly polarized light 2, that is, into a polarized image signal light. .
  • the projection screen 602 includes a metal projection screen, which is disposed on the transmission path of the polarized image signal light 5 and the polarized image signal light 6 projected by the projection lens 6013 in the projector 601, and is used for reflecting the polarized image signal light 5 to obtain
  • the elliptically polarized light is five, that is, the polarized image signal light ray is obtained; the light ray for reflecting the polarized image is six, and the elliptically polarized light is obtained, that is, the polarized image signal light VIII is obtained; and the obtained polarized image signal ray seven vibration direction and polarization
  • the vibration directions of the image signal ray five are parallel, and the obtained polarization direction of the polarization image signal ray eight is parallel to the vibration direction of the polarization image signal ray 6.
  • the process of converting the transmitted polarized image signal light into the polarized image signal light by the left lens quarter wave plate 60311 through the polarized image signal light 7 obtained by being reflected by the projection screen 602 includes:
  • the left lens quarter wave plate 60311 transmits a polarized image signal light ray 7 of a predetermined angle three to the fast axis of the vibration direction, and converts the transmitted polarized image signal light ray into a polarized image signal light ray nine.
  • the process of converting the transmitted polarized image signal light into the polarized image signal light by transmitting the polarized image signal light eight obtained by the right lens quarter wave plate 60321 through the projection screen 602 includes:
  • the right lens quarter-wave plate 60321 transmits a polarized image signal light ray eight at a predetermined angle to the fast axis by the vibration direction, and converts the transmitted polarized image signal light VIII into a polarized image signal ray ten.
  • the process of transmitting the light of the polarized image signal by the left lens polarizing plate 60312 includes:
  • the polar direction is at a predetermined angle three with the fast axis of the left lens quarter wave plate 60311 for transmitting the polarized image signal light nine; or the polarity direction is parallel to the vibration direction of the polarized image signal light nine, The light is transmitted through the polarized image signal nine.
  • the process of transmitting the light of the polarized image signal by the right lens polarizing plate 60322 includes:
  • the polar direction is at a predetermined angle four with the fast axis of the right lens quarter wave plate 60321 for transmitting the polarized image signal light ten; or the polarity direction is parallel to the vibration direction of the polarized image signal light ten, Ten rays are transmitted through the polarized image signal.
  • the left lens quarter-wave plate 60311 transmits the polarized image signal light ray 7 at a 45-degree angle to the fast axis of the vibration direction, and converts the transmitted polarized image signal light ray into a polarized image signal ray nine.
  • the right lens quarter wave plate 60321 transmits the polarized image signal light eight at a 45 degree angle to the fast axis of the vibration direction, and converts the transmitted polarized image signal light into eight into the polarized image signal light.
  • the polar direction of the left lens polarizing plate 60312 is at a 45 degree angle with the fast axis of the left lens quarter wave plate 60311, for transmitting the polarized image signal light nine; or the polar direction and the polarized image signal light nine
  • the vibration directions are parallel and are used to transmit the polarized image signal light nine.
  • the polar direction of the right lens polarizing plate 60322 is at a 45 degree angle with the fast axis of the right lens quarter wave plate 60321, for transmitting the polarized image signal light ray; or the polar direction and the polarized image signal light ray ten
  • the vibration directions are parallel and are used to transmit light through the polarized image signal.
  • the image signal processing device 6011 includes: a digital light processing type image signal processing device for generating image signal light; or a liquid crystal on silicon type image signal processing device for generating image signal light; or a liquid crystal type image signal processing device, For generating image signal light; or display device for generating image signal light, the display device includes a television, a computer, a projector, a navigator, a mobile phone, a camera.
  • the polarization frequency of the polarization filter 6012 may be the same as the playback frequency of the program source.
  • the alternating polarized image signal light generated by the polarizing filter 6012 at a frequency of 120 frames per second for a predetermined time may be synchronized with the image signal light generated by the image signal processing device 6011, and each image corresponding to the polarized image signal light The frames alternate in order.
  • the stereoscopic image system 600 of the present invention applies the projector 601 to generate alternating polarized 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 polarized image signal light is reflected by the projection screen 602.
  • a predetermined time such as a frequency of 120 frames per second
  • each image frame is alternated in order
  • the generated alternating polarized image signal light is reflected by the projection screen 602.
  • the polarized glasses 603 are not changed, the direction of vibration of the light does not change.
  • the viewer can only see the corresponding image through the polarized glasses 603, the left lens 6031 and the right lens 6032, that is, the viewer receives a left eye frame through the polarized glasses 603, and then A right eye frame, then another left eye frame, and then another right eye frame, thereby generating a stereoscopic feeling in the visual nervous system, thereby achieving the purpose of viewing the stereoscopic image, thereby achieving the realization of viewing stereoscopic images through a projector. purpose.

Description

[根据细则37.2由ISA制定的发明名称]　投影机及其立体影像系统
【技术领域】
本发明涉及投影技术领域，尤其涉及一种投影机、立体影像系统。
【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，现有的投影机包括数字光处理型（DLP）投影机、硅基液晶型（LCOS）投影机、液晶型（LCD）投影机。
请参见图1，为现有投影机的示意图，该投影机100包括：
图像信号处理设备101，用于生成图像信号光线；
投影镜头102，设置于图像信号处理设备101所生成的图像信号光线的传递路径上，用于投射该生成的图像信号光线至投影屏幕上成像。
请参见图2，为现有的数字光处理型投影机的实施例的示意图，该数字光处理型投影机200包括：数字光处理型图像信号处理设备201、投影镜头202；
数字光处理型图像信号处理设备201，用于生成图像信号光线，包括：
光源2011，用于提供光线；
中继透镜2012，设置于光源2011所提供的光线的传递路径上，用于将光源2011所提供的光线投射至数字微镜装置（DMD）2013上；
数字微镜装置2013，设置于光源2011所提供的光线的传递路径上，包括多个微镜（图中未示出），每一微镜会呈现的状态包括ON状态、OFF状态，呈现OFF状态的微镜，用于反射中继透镜2012所投射出的光线，并使该反射出的光线偏离投影镜头202，呈现ON状态的微镜，用于反射中继透镜2012所投射出的光线至投影镜头202，该反射至投影镜头202的光线即成为影像，即生成了图像信号光线；
投影镜头202，设置于光源2011所提供的光线的传递路径上，用于投射该生成的图像信号光线至投影屏幕上成像。
请参见图3，为现有的硅基液晶型投影机的实施例的示意图，该硅基液晶型投影机300包括：硅基液晶型图像信号处理设备301、投影镜头302；
硅基液晶型图像信号处理设备301，用于生成图像信号光线，包括：
光源3011，用于提供光线；
分光系统3012，设置于光源3011所提供的光线的传递路径上，用于将光源3011所提供的光线分成红光、绿光、蓝光三色光，将红光投射至折射镜一3013，将绿光投射至硅基液晶成像系统3015，将蓝光投射至折射镜二3014；
折射镜一3013，设置于该红光的传递路径上，用于将该红光折射至硅基液晶成像系统3015；
折射镜二3014，设置于该蓝光的传递路径上，用于将该蓝光折射至硅基液晶成像系统3015；
硅基液晶成像系统3015，设置于该红光、绿光、蓝光三色光的传递路径上，用于将该红光、绿光、蓝光三色光合色，进行图像调制形成影像，生成图像信号光线；
投影镜头302，设置于硅基液晶型图像信号处理设备301所生成的图像信号光线的传递路径上，用于投射该生成的图像信号光线至投影屏幕上成像。
请参见图4，为现有的液晶型投影机的实施例的示意图，该液晶型投影机400包括：液晶型图像信号处理设备401、投影镜头402；
液晶型图像信号处理设备401，用于生成了图像信号光线;
投影镜头402，设置于液晶型图像信号处理设备401所生成的图像信号光线的传递路径上，用于投射该生成的图像信号光线至投影屏幕上成像。
图2所代表的设计并非构成数字光处理型投影机的仅有的可能方法，图3所代表的设计也并非构成硅基液晶型投影机的仅有的可能方法，图4所代表的设计也并非构成液晶型投影机的仅有的可能方法，画出这些图形仅仅是为了示例的目的。
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，将两台投影机前的起偏器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投影机、立体影像系统。
本发明的目的在于提供一种投影机，包括：图像信号处理设备、偏光滤波器、投影镜头；
所述图像信号处理设备，用于生成图像信号光线；
所述偏光滤波器，设置于所述图像信号处理设备所生成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，当所述电场选择器选择在N/120秒时，对所述起偏器提供电场，其中，所述N包括奇数、偶数；
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，透过所述图像信号处理设备所生成的图像信号光线，得到偏振图像信号光线一；
所述第一导电层，与所述偏光板相粘合，用于透过所述偏振图像信号光线一；
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、所述第二导电层不加入电场时，旋转所述第一导电层所透过的光线预定角度，得到偏振图像信号光线二，并透过所述偏振图像信号光线二；在所述电场提供器提供电场给所述第一导电层、所述第二导电层时，透过所述偏振图像信号光线一；
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偏振图像信号光线一、偏振图像信号光线二；
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振动方向与其快轴成预定角度一的偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三；透过所述第二导电层所透过的振动方向与其快轴成预定角度二的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四；
所述投影镜头，设置于所述偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于投射所述偏振图像信号光线三、偏振图像信号光线四至投影屏幕上成像。
本发明的目的在于还提供一种投影机，包括：图像信号处理设备、偏光滤波器、投影镜头；
所述图像信号处理设备，用于生成图像信号光线；
所述偏光滤波器，设置于所述图像信号处理设备所生成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，透过所述图像信号处理设备所生成的图像信号光线，得到偏振图像信号光线一；
所述第一导电层，与所述偏光板相粘合，用于透过所述偏振图像信号光线一；
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、所述第二导电层不加入电场时，旋转所述第一导电层所透过的光线预定角度，得到偏振图像信号光线二，并透过所述偏振图像信号光线二；在所述电场提供器提供电场给所述第一导电层、所述第二导电层时，透过所述偏振图像信号光线一；
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偏振图像信号光线一、偏振图像信号光线二；
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偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三；透过所述第二导电层所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四；
所述投影镜头，设置于所述偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于投射所述偏振图像信号光线三、偏振图像信号光线四至投影屏幕上成像。
本发明的目的在于又提供一种立体影像系统，包括：投影机、投影屏幕、偏光眼镜；
所述投影机包括：图像信号处理设备、偏光滤波器、投影镜头；
所述图像信号处理设备，用于生成图像信号光线；
所述偏光滤波器，设置于所述图像信号处理设备所生成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，透过所述图像信号处理设备所生成的图像信号光线，得到偏振图像信号光线一；
所述第一导电层，与所述偏光板相粘合，用于透过所述偏振图像信号光线一；
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、所述第二导电层不加入电场时，旋转所述第一导电层所透过的光线预定角度，得到偏振图像信号光线二，并透过所述偏振图像信号光线二；在所述电场提供器提供电场给所述第一导电层、所述第二导电层时，透过所述偏振图像信号光线一；
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偏振图像信号光线一、偏振图像信号光线二；
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偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三；透过所述第二导电层所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四；
所述投影镜头，设置于所述偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于透过所述偏振图像信号光线三，将所述透过的偏振图像信号光线三转变为偏振图像信号光线五，并投射所述偏振图像信号光线五至所述投影屏幕上成像；透过所述偏振图像信号光线四，将所述透过的偏振图像信号光线四转变为偏振图像信号光线六，并投射所述偏振图像信号光线六至所述投影屏幕上成像；所述偏振图像信号光线五的振动方向与偏振图像信号光线三的振动方向相平行，所述偏振图像信号光线六的振动方向与偏振图像信号光线四的振动方向相平行；
所述投影屏幕，设置于所述投影机中所述投影镜头所投射出的偏振图像信号光线五、偏振图像信号光线六的传递路径上，用于反射所述偏振图像信号光线五，得到偏振图像信号光线七；用于反射所述偏振图像信号光线六，得到偏振图像信号光线八；所述得到的偏振图像信号光线七的振动方向与偏振图像信号光线五的振动方向相平行，所述得到的偏振图像信号光线八的振动方向与偏振图像信号光线六的振动方向相平行；
所述偏光眼镜，设置于经所述投影屏幕反射后得到的偏振图像信号光线七、偏振图像信号光线八的传递路径上，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，用于透过经所述投影屏幕反射后得到的偏振图像信号光线七，将透过的偏振图像信号光线七转变为偏振图像信号光线九；
所述左镜片偏光板，用于透过所述偏振图像信号光线九；
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，用于透过经所述投影屏幕反射后得到的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十；
所述右镜片偏光板，用于透过所述偏振图像信号光线十；
所述左镜片偏光板的极性方向与右镜片偏光板的极性方向不相平行。
本发明投影机应用偏光滤波器产生按预定时间如每秒120帧的频率交替的偏振图像信号光线，各图像帧按顺序交替，接着投影镜头将该偏振图像信号光线转换成振动方向相平行且偏振频率不变的新的偏振图像信号光线，而且该新的偏振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。
本发明立体影像系统应用投影机按预定时间如每秒120帧的频率产生交替的偏振图像信号光线，各图像帧按顺序交替，而且该产生的交替的偏振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是现有投影机的示意图；
图2是现有的数字光处理型投影机的实施例的示意图；
图3是现有的硅基液晶型投影机的实施例的示意图；
图4是现有的液晶型投影机的实施例的示意图；
图5是本发明投影机的示意图；
图6是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产生按预定时间如每秒120帧的频率交替的偏振图像信号光线，各图像帧按顺序交替，接着投影镜头将该偏振图像信号光线转换成振动方向相平行且偏振频率不变的新的偏振图像信号光线，而且该新的偏振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。
本发明提供一种投影机。
请参见图5，为本发明投影机的示意图，该投影机500包括：图像信号处理设备501、偏光滤波器502、投影镜头503；
图像信号处理设备501，用于生成图像信号光线；
偏光滤波器502，设置于图像信号处理设备501所生成的图像信号光线的传递路径上，包括：电场选择器5021、电场提供器5022、起偏器5023；
电场选择器5021，用于选择预定时间，对起偏器5023提供电场；
电场提供器5022，用于在电场选择器5021选择对起偏器5023提供电场时，提供电场给起偏器5023；
起偏器5023，包括：偏光板50231、第一导电层50232、液晶层50233、第二导电层50234、四分之一波片50235；
偏光板50231，用于透过与极性方向相平行方向的光线，透过图像信号处理设备501所生成的图像信号光线，得到线偏振光一，即得到偏振图像信号光线一；
第一导电层50232，与偏光板50231相粘合，用于透过该偏振图像信号光线一；
液晶层50233，与第一导电层50232相粘合，用于在第一导电层50232、第二导电层50234不加入电场时，旋转第一导电层50232所透过的光线预定角度，得到线偏振光二，即得到偏振图像信号光线二，并透过该经旋转后得到的偏振图像信号光线二；在电场提供器5022提供电场给第一导电层50232、第二导电层50234时，透过该偏振图像信号光线一；
第二导电层50234，与液晶层50233相粘合，用于透过液晶层50233所透过的偏振图像信号光线一、偏振图像信号光线二；
四分之一波片50235，与第二导电层50234相粘合，用于透过第二导电层50234所透过的偏振图像信号光线一，将透过的偏振图像信号光线一转变为椭圆偏振光一，即转变为偏振图像信号光线三；透过第二导电层50234所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为椭圆偏振光二，即转变为偏振图像信号光线四；
投影镜头503，设置于该偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于投射该偏振图像信号光线三、偏振图像信号光线四至投影屏幕上成像，包括：透过该偏振图像信号光线三，将该透过的偏振图像信号光线三转变为椭圆偏振光三，即转变为偏振图像信号光线五，并投射该偏振图像信号光线五至投影屏幕上成像；将该透过的偏振图像信号光线四转变为椭圆偏振光四，即转变为偏振图像信号光线六，并投射该偏振图像信号光线六至投影屏幕上成像；该偏振图像信号光线五的振动方向与偏振图像信号光线三的振动方向相平行，该偏振图像信号光线六的振动方向与偏振图像信号光线四的振动方向相平行。
其中，电场选择器5021选择预定时间，对起偏器5023提供电场的过程包括：
电场选择器5021选择在N/120秒时，对起偏器5023提供电场，其中的N包括奇数、偶数。
其中，第一导电层50232包括氧化铟锡（ITO）导电玻璃，与偏光板50231相粘合，用于透过该偏振图像信号光线一。
其中，第二导电层50234包括氧化铟锡ITO导电玻璃，与液晶层50233相粘合，用于透过液晶层50233所透过的偏振图像信号光线一、偏振图像信号光线二。
其中，液晶层50233包括扭曲向列（TN）型液晶层，与第一导电层50232相粘合，用于在第一导电层50232、第二导电层50234不加入电场时，旋转第一导电层50232所透过的光线90度，得到偏振图像信号光线二，并透过该经旋转后得到的偏振图像信号光线二；在电场提供器5022提供电场给第一导电层50232、第二导电层50234时，透过该偏振图像信号光线一。
其中，液晶层50233包括超级扭曲向列（STN）型液晶层，与第一导电层50232相粘合，用于在第一导电层50232、第二导电层50234不加入电场时，旋转第一导电层50232所透过的光线270度，得到偏振图像信号光线二，并透过该经旋转后得到的偏振图像信号光线二；在电场提供器5022提供电场给第一导电层50232、第二导电层50234时，透过该偏振图像信号光线一。
其中，电场选择器5021包括电源选通器，用于选择预定时间，对起偏器5023提供电场。
其中，电场提供器5022包括电源，用于在电场选择器5021选择对起偏器5023提供电场时，提供电场给起偏器5023。
其中，四分之一波片50235透过第二导电层50234所透过的偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三的过程包括：
四分之一波片50235透过振动方向与其快轴成预定角度一的偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三。
其中，四分之一波片50235透过第二导电层50234所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四的过程包括：
四分之一波片50235透过振动方向与其快轴成预定角度二的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四。
其中，四分之一波片50235透过振动方向与其快轴成45度角的偏振图像信号光线一，将透过的偏振图像信号光线一转变为圆偏振光一，即转变为偏振图像信号光线三。
其中，四分之一波片50235透过振动方向与其快轴成45度角的偏振图像信号光线二，将透过的偏振图像信号光线二转变为圆偏振光二，即转变为偏振图像信号光线四。
其中，图像信号处理设备501包括：数字光处理型图像信号处理设备，用于生成图像信号光线；或硅基液晶型图像信号处理设备，用于生成图像信号光线；或液晶型图像信号处理设备，用于生成图像信号光线；或显示设备，用于生成图像信号光线，该显示设备包括电视、电脑、投影机、导航仪、手机、相机。
其中，偏光滤波器502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502按预定时间如每秒120帧的频率所产生的交替的偏振图像信号光线可以与图像信号处理设备501所生成的图像信号光线同步，该偏振图像信号光线所对应的各图像帧按顺序交替。
本发明投影机500应用偏光滤波器502产生按预定时间如每秒120帧的频率交替的偏振图像信号光线，各图像帧按顺序交替，接着投影镜头503将该偏振图像信号光线转换成振动方向相平行且偏振频率不变的新的偏振图像信号光线，而且该新的偏振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。
本发明还提供一种立体影像系统。
请参见图6，为本发明立体影像系统的示意图，该立体影像系统600包括：投影机601、投影屏幕602、偏光眼镜603；
投影机601包括：图像信号处理设备6011、偏光滤波器6012、投影镜头6013；
图像信号处理设备6011，用于生成图像信号光线；
偏光滤波器6012，设置于图像信号处理设备6011所生成的图像信号光线的传递路径上，包括：电场选择器60121、电场提供器60122、起偏器60123；
电场选择器60121，用于选择预定时间，对起偏器60123提供电场；
电场提供器60122，用于在电场选择器60121选择对起偏器60123提供电场时，提供电场给起偏器60123；
起偏器60123，包括：偏光板601231、第一导电层601232、液晶层601233、第二导电层601234、四分之一波片601235；
偏光板601231，用于透过与极性方向相平行方向的光线，透过图像信号处理设备6011所生成的图像信号光线，得到线偏振光一，即得到偏振图像信号光线一；
第一导电层601232，与偏光板601231相粘合，用于透过该偏振图像信号光线一；
液晶层601233，与第一导电层601232相粘合，用于在第一导电层601232、第二导电层601234不加入电场时，旋转第一导电层601232所透过的光线预定角度，得到线偏振光二，即得到偏振图像信号光线二，并透过该经旋转后得到的偏振图像信号光线二；在电场提供器60122提供电场给第一导电层601232、第二导电层601234时，透过该偏振图像信号光线一；
第二导电层601234，与液晶层601233相粘合，用于透过液晶层601233所透过的偏振图像信号光线一、偏振图像信号光线二；
四分之一波片601235，与第二导电层601234相粘合，用于透过第二导电层601234所透过的偏振图像信号光线一，将透过的偏振图像信号光线一转变为椭圆偏振光一，即转变为偏振图像信号光线三；透过第二导电层601234所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为椭圆偏振光二，即转变为偏振图像信号光线四；
投影镜头6013，设置于该偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于投射该偏振图像信号光线三、偏振图像信号光线四至投影屏幕602上成像，包括：透过该偏振图像信号光线三，将该透过的偏振图像信号光线三转变为椭圆偏振光三，即转变为偏振图像信号光线五，并投射该偏振图像信号光线五至投影屏幕602上成像；透过该偏振图像信号光线四，将该透过的偏振图像信号光线四转变为椭圆偏振光四，即转变为偏振图像信号光线六，并投射该偏振图像信号光线六至投影屏幕602上成像；该偏振图像信号光线五的振动方向与偏振图像信号光线三的振动方向相平行，该偏振图像信号光线六的振动方向与偏振图像信号光线四的振动方向相平行；
投影屏幕602，设置于投影机601中投影镜头6013所投射出的偏振图像信号光线五、偏振图像信号光线六的传递路径上，用于反射该偏振图像信号光线五，得到椭圆偏振光五，即得到偏振图像信号光线七；用于反射该偏振图像信号光线六，得到椭圆偏振光六，即得到偏振图像信号光线八；该得到的偏振图像信号光线七的振动方向与偏振图像信号光线五的振动方向相平行，该得到的偏振图像信号光线八的振动方向与偏振图像信号光线六的振动方向相平行；
偏光眼镜603，设置于经投影屏幕602反射后得到的偏振图像信号光线七、偏振图像信号光线八的传递路径上，包括：左镜片6031、右镜片6032、眼镜框架6033；
左镜片6031，设置于眼镜框架6033上，包括：左镜片四分之一波片60311、左镜片偏光板60312；
左镜片四分之一波片60311，用于透过经投影屏幕602反射后得到的偏振图像信号光线七，将透过的偏振图像信号光线七转变为线偏振光三，即转变为偏振图像信号光线九；
左镜片偏光板60312，用于透过该偏振图像信号光线九；
右镜片6032，设置于眼镜框架6033上，包括：右镜片四分之一波片60321、右镜片偏光板60322；
右镜片四分之一波片60321，用于透过经投影屏幕602反射后得到的偏振图像信号光线八，将透过的偏振图像信号光线八转变为线偏振光四，即转变为偏振图像信号光线十；
右镜片偏光板60322，用于透过该偏振图像信号光线十；
左镜片偏光板60312的极性方向与右镜片偏光板60322的极性方向不相平行。
其中，电场选择器60121选择预定时间，对起偏器60123提供电场的过程包括：
电场选择器60121选择在N/120秒时，对起偏器60123提供电场，其中的N包括奇数、偶数。
其中，第一导电层601232包括氧化铟锡ITO导电玻璃，与偏光板601231相粘合，用于透过该偏振图像信号光线一。
其中，第二导电层601234包括氧化铟锡ITO导电玻璃，与液晶层601233相粘合，用于透过液晶层601233所透过的偏振图像信号光线一、偏振图像信号光线二。
其中，液晶层601233包括扭曲向列TN型液晶层，与第一导电层601232相粘合，用于在第一导电层601232、第二导电层601234不加入电场时，旋转第一导电层601232所透过的光线90度，得到线偏振光二，即得到偏振图像信号光线二，并透过该经旋转后得到的偏振图像信号光线二；在电场提供器60122提供电场给第一导电层601232、第二导电层601234时，透过该偏振图像信号光线一。
其中，液晶层601233包括超级扭曲向列STN型液晶层，与第一导电层601232相粘合，用于在第一导电层601232、第二导电层601234不加入电场时，旋转第一导电层601232所透过的光线270度，得到线偏振光二，即得到偏振图像信号光线二，并透过该经旋转后得到的偏振图像信号光线二；在电场提供器60122提供电场给第一导电层601232、第二导电层601234时，透过该偏振图像信号光线一。
其中，电场选择器60121包括电源选通器，用于选择预定时间，对起偏器60123提供电场。
其中，电场提供器60122包括电源，用于在电场选择器60121选择对起偏器60123提供电场时，提供电场给起偏器60123。
其中，四分之一波片601235透过第二导电层601234所透过的偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三的过程包括：
四分之一波片601235透过振动方向与其快轴成预定角度一的偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三。
其中，四分之一波片601235透过第二导电层601234所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四的过程包括：
四分之一波片601235透过振动方向与其快轴成预定角度二的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四。
其中，四分之一波片601235透过振动方向与其快轴成45度角的偏振图像信号光线一，将透过的偏振图像信号光线一转变为圆偏振光一，即转变为偏振图像信号光线三。
其中，四分之一波片601235透过振动方向与其快轴成45度角的偏振图像信号光线二，将透过的偏振图像信号光线二转变为圆偏振光二，即转变为偏振图像信号光线四。
其中，投影屏幕602包括金属投影屏幕，设置于投影机601中投影镜头6013所投射出的偏振图像信号光线五、偏振图像信号光线六的传递路径上，用于反射该偏振图像信号光线五，得到椭圆偏振光五，即得到偏振图像信号光线七；用于反射该偏振图像信号光线六，得到椭圆偏振光六，即得到偏振图像信号光线八；该得到的偏振图像信号光线七的振动方向与偏振图像信号光线五的振动方向相平行，该得到的偏振图像信号光线八的振动方向与偏振图像信号光线六的振动方向相平行。
其中，左镜片四分之一波片60311透过经投影屏幕602反射后得到的偏振图像信号光线七，将透过的偏振图像信号光线七转变为偏振图像信号光线九的过程包括：
左镜片四分之一波片60311透过振动方向与其快轴成预定角度三的偏振图像信号光线七，将透过的偏振图像信号光线七转变为偏振图像信号光线九。
其中，右镜片四分之一波片60321透过经投影屏幕602反射后得到的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十的过程包括：
右镜片四分之一波片60321透过振动方向与其快轴成预定角度四的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十。
其中，左镜片偏光板60312透过该偏振图像信号光线九的过程包括：
极性方向与左镜片四分之一波片60311的快轴成预定角度三，用于透过该偏振图像信号光线九；或者极性方向与该偏振图像信号光线九的振动方向相平行，用于透过该偏振图像信号光线九。
其中，右镜片偏光板60322透过该偏振图像信号光线十的过程包括：
极性方向与右镜片四分之一波片60321的快轴成预定角度四，用于透过该偏振图像信号光线十；或者极性方向与该偏振图像信号光线十的振动方向相平行，用于透过该偏振图像信号光线十。
其中，左镜片四分之一波片60311透过振动方向与其快轴成45度角的偏振图像信号光线七，将透过的偏振图像信号光线七转变为偏振图像信号光线九。
其中，右镜片四分之一波片60321透过振动方向与其快轴成45度角的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十。
其中，左镜片偏光板60312极性方向与左镜片四分之一波片60311的快轴成45度角，用于透过该偏振图像信号光线九；或者极性方向与该偏振图像信号光线九的振动方向相平行，用于透过该偏振图像信号光线九。
其中，右镜片偏光板60322极性方向与右镜片四分之一波片60321的快轴成45度角，用于透过该偏振图像信号光线十；或者极性方向与该偏振图像信号光线十的振动方向相平行，用于透过该偏振图像信号光线十。
其中，图像信号处理设备6011包括：数字光处理型图像信号处理设备，用于生成图像信号光线；或硅基液晶型图像信号处理设备，用于生成图像信号光线；或液晶型图像信号处理设备，用于生成图像信号光线；或显示设备，用于生成图像信号光线，该显示设备包括电视、电脑、投影机、导航仪、手机、相机。
其中，偏光滤波器6012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6012按预定时间如每秒120帧的频率所产生的交替的偏振图像信号光线可以与图像信号处理设备6011所生成的图像信号光线同步，该偏振图像信号光线所对应的各图像帧按顺序交替。
本发明立体影像系统600应用投影机601按预定时间如每秒120帧的频率产生交替的偏振图像信号光线，各图像帧按顺序交替，而且该产生的交替的偏振图像信号光线经投影屏幕602反射至偏光眼镜603时光线的振动方向不会改变，观看者通过偏光眼镜603左镜片6031、右镜片6032只能看到相应的图像，即观看者通过偏光眼镜603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 (15)

  1. 一种投影机，其特征在于，包括：图像信号处理设备、偏光滤波器、投影镜头；
    所述图像信号处理设备，用于生成图像信号光线；
    所述偏光滤波器，设置于所述图像信号处理设备所生成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，当所述电场选择器选择在N/120秒时，对所述起偏器提供电场，其中，所述N包括奇数、偶数；
    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，透过所述图像信号处理设备所生成的图像信号光线，得到偏振图像信号光线一；
    所述第一导电层，与所述偏光板相粘合，用于透过所述偏振图像信号光线一；
    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、所述第二导电层不加入电场时，旋转所述第一导电层所透过的光线预定角度，得到偏振图像信号光线二，并透过所述偏振图像信号光线二；在所述电场提供器提供电场给所述第一导电层、所述第二导电层时，透过所述偏振图像信号光线一；
    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偏振图像信号光线一、偏振图像信号光线二；
    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振动方向与其快轴成预定角度一的偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三；透过所述第二导电层所透过的振动方向与其快轴成预定角度二的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四；
    所述投影镜头，设置于所述偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于投射所述偏振图像信号光线三、偏振图像信号光线四至投影屏幕上成像。
  2. 如权利要求1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度角的偏振图像信号光线一，将透过的偏振图像信号光线一转变为圆偏振光一，转变为偏振图像信号光线三。
    所述四分之一波片透过振动方向与其快轴成45度角的偏振图像信号光线二，将透过的偏振图像信号光线二转变为圆偏振光二，转变为偏振图像信号光线四。
  3. 如权利要求1所述的投影机，其特征在于，所述图像信号处理设备，包括：数字光处理型图像信号处理设备，用于生成图像信号光线；或硅基液晶型图像信号处理设备，用于生成图像信号光线；或液晶型图像信号处理设备，用于生成图像信号光线；或显示设备，用于生成图像信号光线，所述显示设备包括电视、电脑、投影机、导航仪、手机、相机。
  4. 一种投影机，其特征在于，包括：图像信号处理设备、偏光滤波器、投影镜头；
    所述图像信号处理设备，用于生成图像信号光线；
    所述偏光滤波器，设置于所述图像信号处理设备所生成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、所述液晶层、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，透过所述图像信号处理设备所生成的图像信号光线，得到偏振图像信号光线一；
    所述第一导电层，与所述偏光板相粘合，用于透过所述偏振图像信号光线一；
    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、所述第二导电层不加入电场时，旋转所述第一导电层所透过的光线预定角度，得到偏振图像信号光线二，并透过所述偏振图像信号光线二；在所述电场提供器提供电场给所述第一导电层、所述第二导电层时，透过所述偏振图像信号光线一；
    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偏振图像信号光线一、偏振图像信号光线二；
    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偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三；透过所述第二导电层所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四；
    所述投影镜头，设置于所述偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于投射所述偏振图像信号光线三、偏振图像信号光线四至投影屏幕上成像。
  5. 如权利要求4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偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图 像信号光线三；
    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偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四。
  6. 如权利要求4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度角的偏振图像信号光线一，将透过的偏振图像信号光线一转变为圆偏振光一，转变为偏振图像信号光线三。
    所述四分之一波片透过振动方向与其快轴成45度角的偏振图像信号光线二，将透过的偏振图像信号光线二转变为圆偏振光二，转变为偏振图像信号光线四。
  7. 如权利要求4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。
  8. 如权利要求4所述的投影机，其特征在于，所述图像信号处理设备，包括：数字光处理型图像信号处理设备，用于生成图像信号光线；或硅基液晶型图像信号处理设备，用于生成图像信号光线；或液晶型图像信号处理设备，用于生成图像信号光线；或显示设备，用于生成图像信号光线，所述显示设备包括电视、电脑、投影机、导航仪、手机、相机。
  9. 一种立体影像系统，其特征在于，包括：投影机、投影屏幕、偏光眼镜；
    所述投影机包括：图像信号处理设备、偏光滤波器、投影镜头；
    所述图像信号处理设备，用于生成图像信号光线；
    所述偏光滤波器，设置于所述图像信号处理设备所生成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，透过所述图像信号处理设备所生成的图像信号光线，得到偏振图像信号光线一；
    所述第一导电层，与所述偏光板相粘合，用于透过所述偏振图像信号光线一；
    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、所述第二导电层不加入电场时，旋转所述第一导电层所透过的光线预定角度，得到偏振图像信号光线二，并透过所述偏振图像信号光线二；在所述电场提供器提供电场给所述第一导电层、所述第二导电层时，透过所述偏振图像信号光线一；
    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偏振图像信号光线一、偏振图像信号光线二；
    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偏振图像信号光线一，将透过的偏振图像信号光线一转变为偏振图像信号光线三；透过所述第二导电层所透过的偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四；
    所述投影镜头，设置于所述偏振图像信号光线三、偏振图像信号光线四的传递路径上，用于透过所述偏振图像信号光线三，将所述透过的偏振图像信号光线三转变为偏振图像信号光线五，并投射所述偏振图像信号光线五至所述投影屏幕上成像；透过所述偏振图像信号光线四，将所述透过的偏振图像信号光线四转变为偏振图像信号光线六，并投射所述偏振图像信号光线六至所述投影屏幕上成像；所述偏振图像信号光线五的振动方向与偏振图像信号光线三的振动方向相平行，所述偏振图像信号光线六的振动方向与偏振图像信号光线四的振动方向相平行；
    所述投影屏幕，设置于所述投影机中所述投影镜头所投射出的偏振图像信号光线五、偏振图像信号光线六的传递路径上，用于反射所述偏振图像信号光线五，得到偏振图像信号光线七；用于反射所述偏振图像信号光线六，得到偏振图像信号光线八；所述得到的偏振图像信号光线七的振动方向与偏振图像信号光线五的振动方向相平行，所述得到的偏振图像信号光线八的振动方向与偏振图像信号光线六的振动方向相平行；
    所述偏光眼镜，设置于经所述投影屏幕反射后得到的偏振图像信号光线七、偏振图像信号光线八的传递路径上，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，用于透过经所述投影屏幕反射后得到的偏振图像信号光线七，将透过的偏振图像信号光线七转变为偏振图像信号光线九；
    所述左镜片偏光板，用于透过所述偏振图像信号光线九；
    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，用于透过经所述投影屏幕反射后得到的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十；
    所述右镜片偏光板，用于透过所述偏振图像信号光线十；
    所述左镜片偏光板的极性方向与右镜片偏光板的极性方向不相平行。
  10. 如权利要求9所述的立体影像系统，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偏振图像信号光线一，将透过的偏振图像信号光线一转变为 偏振图像信号光线三；
    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偏振图像信号光线二，将透过的偏振图像信号光线二转变为偏振图像信号光线四。
  11. 如权利要求9所述的立体影像系统，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度角的偏振图像信号光线一，将透过的偏振图像信号光线一转变为圆偏振光一，转变为偏振图像信号光线三。
    所述四分之一波片透过振动方向与其快轴成45度角的偏振图像信号光线二，将透过的偏振图像信号光线二转变为圆偏振光二，转变为偏振图像信号光线四。
  12. 如权利要求9所述的立体影像系统，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预定角度三的偏振图像信号光线七，将透过的偏振图像信号光线七 转变为偏振图像信号光线九；
    所述右镜片四分之一波片透过振动方向与其快轴成预定角度四的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十;
    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预定角度三，用于透过所述偏振图像信号光线九；或者极性方向与所述偏振图像信号光线九的振动方向相平行，用于透过所述偏振图像信号光线九；
    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预定角度四，用于透过所述偏振图像信号光线十；或者极性方向与所述偏振图像信号光线十的振动方向相平行，用于透过所述偏振图像信号光线十。
  13. 如权利要求12所述的立体影像系统，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度角的偏振图像信号光线七，将透过的偏振图像信号光线七转 变为偏振图像信号光线九；
    所述右镜片四分之一波片透过振动方向与其快轴成45度角的偏振图像信号光线八，将透过的偏振图像信号光线八转变为偏振图像信号光线十；
    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，用于透过所述偏振图像信号光线九；或者极性方向与所述偏振图像信号光线九的振动方向相平行，用于透过所述偏振图像信号光线九；
    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，用于透过所述偏振图像信号光线十；或者极性方向与所述偏振图像信号光线十的振动方向相平行，用于透过所述偏振图像信号光线十。
  14. 如权利要求9所述的立体影像系统，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。
  15. 如权利要求9所述的立体影像系统，其特征在于，所述图像信号处理设备，包括：数字光处理型图像信号处理设备，用于生成图像信号光线；或硅基液晶型图像信号处理设备，用于生成图像信号光线；或液晶型图像信号处理设备，用于生成图像信号光线；或显示设备，用于生成图像信号光线，所述显示设备包括电视、电脑、投影机、导航仪、手机、相机。
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