WO2011003234A1 - Dispositif de projection stéréo optique, système et procédé - Google Patents

Dispositif de projection stéréo optique, système et procédé Download PDF

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Publication number
WO2011003234A1
WO2011003234A1 PCT/CN2009/072682 CN2009072682W WO2011003234A1 WO 2011003234 A1 WO2011003234 A1 WO 2011003234A1 CN 2009072682 W CN2009072682 W CN 2009072682W WO 2011003234 A1 WO2011003234 A1 WO 2011003234A1
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WO
WIPO (PCT)
Prior art keywords
optical
mirror
lens group
optical lens
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2009/072682
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English (en)
Chinese (zh)
Inventor
夏登海
李炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inlife Handnet Co Ltd
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Inlife Handnet Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inlife Handnet Co Ltd filed Critical Inlife Handnet Co Ltd
Priority to PCT/CN2009/072682 priority Critical patent/WO2011003234A1/fr
Publication of WO2011003234A1 publication Critical patent/WO2011003234A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • 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
    • H04N13/363—Image reproducers using image projection screens

Definitions

  • the present invention relates to the field of stereoscopic image projection, and more particularly to an optical stereoscopic projection device, system and stereoscopic projection method for stereoscopic image projection.
  • a polarizer must be added in front of the lens of each projector, one is a lateral polarizer and the other is a longitudinal polarizer (or a diagonal cross), so that two polarization directions appear on the screen are 90 degrees positive.
  • the audience should also wear polarized glasses when watching movies.
  • the polarization of the left and right lenses must be the same as the polarizer on the projector.
  • the left and right eyes can filter out the different polarization directions, and only the polarized light image of the corresponding polarization direction is seen, that is, the left eye can only see the left projection screen, and the right eye can only see the right projection screen. .
  • These images are combined by the brain to produce stereoscopic vision.
  • the technical solution to which the present invention solves the technical problems is: Constructing an optical stereoscopic projection device, a system, and a stereoscopic projection method, the optical stereoscopic projection device comprising:
  • a dichroic prism for dividing a horizontally compressed side-by-side stereo image from a projector lens into two left and right images
  • the left and right screens are overlapped by adjusting the angle of the mirror.
  • a first optical lens group and a second optical lens group configured to receive two left and right images respectively reflected by the first mirror and the second mirror and perform amplification of an equivalent compression ratio in a horizontal direction;
  • a first polarizing filter and a second polarizing filter respectively, for performing polarization processing on light rays corresponding to the first optical lens group and the second optical lens group to form a 90-degree orthogonal and projecting an image On the screen, form two overlapping images.
  • the lateral distance between the first optical lens group and the second optical lens group is related to the effective aperture of the film projector, and the larger the aperture is, the larger the distance.
  • the angle adjustment of the first mirror and the second mirror includes respectively adjusting and synchronizing adjustment.
  • the first polarizing filter and the second polarizing filter are polarizing filters.
  • the film compression ratio is 2: 1
  • the lens magnification ratio is 1:2.
  • an optical stereoscopic projection system comprising a single projector and a lens, characterized in that it further comprises an optical stereoscopic projection device, the optical stereoscopic projection device being connected to the office via an adapter ring
  • the optical stereoscopic projection device comprises:
  • a beam splitting prism for dividing a horizontally compressed side-by-side stereo image from a projector lens into two left and right images
  • the first mirror and the second mirror are configured to respectively reflect the left and right images separated by the beam splitting prism; and adjust the reflection angle to overlap the left and right screens.
  • a first optical lens group and a second optical lens group configured to receive two left and right images respectively reflected by the first mirror and the second mirror and perform amplification of an equivalent compression ratio in a horizontal direction;
  • a first polarizing filter and a second polarizing filter respectively, for performing polarized light processing on light rays corresponding to the first optical lens group and the second optical lens group to form a 90-degree orthogonal and projecting an image On the screen, form two overlapping images.
  • the angle adjustment of the first mirror and the second mirror includes respectively adjusting and synchronizing adjustment.
  • the first polarizing filter and the second polarizing filter are polarizing filters.
  • the film compression ratio is 2: 1
  • the lens magnification ratio is 1:2.
  • a stereoscopic projection method which comprises the following steps: [22] Sl, dividing a horizontally compressed side-by-side stereo image from a single projector lens into two left and right images through a splitting prism;
  • the two optical lens groups respectively receive the left and right images reflected by the two mirrors and perform an equal compression ratio amplification in the horizontal direction;
  • the invention provides an optical stereoscopic projection device, a system and a stereoscopic projection method, which realizes that a stereoscopic movie can be displayed by using a single projector, thereby reducing the cost and greatly reducing the threshold for the popularization of the stereoscopic movie, as long as With this device plugged in, other conditions can be changed without changing, and stereoscopic playback can be performed. Similarly, because stereoscopic movies and images are played in a single machine, the adjustment and synchronization of the stereoscopic projection device is greatly simplified.
  • FIG. 1 is a schematic structural view of an optical stereoscopic projection device according to a preferred embodiment of the present invention, wherein the optical stereoscopic projection device 100 includes a beam splitting prism 109 for receiving images from a single projector.
  • the side-by-side stereoscopic image compressed from the horizontal direction of the projector lens is divided into two left and right images;
  • the projected stereoscopic image is a video or picture in a left-right or right-left juxtaposition format, and is compressed by 2:1 in the horizontal direction;
  • the first mirror 104 and the second mirror 108 are configured to respectively reflect the left and right images separated by the beam splitting prism 109, and superimpose the left and right screens by adjusting the reflection angle.
  • a first polarizing filter 101 and a second polarizing filter 105 for respectively performing light rays from the first optical lens group (102, 103) and the second optical lens group (106, 107)
  • the polarized light processing forms a 90 degree orthogonal and projects the image onto the screen, forming two images that overlap.
  • the first mirror 104, the first optical lens group (102, 103) and the first polarizing filter 101 constitute a left lens; the second mirror 108, the second optical lens group (106, 107) and the second
  • the polarizing filter 105 constitutes a right lens; in order to accommodate the projector operating in different environments, the projection distance is very close, so the angles of the first mirror 104 and the second mirror 108 can be fine-tuned.
  • the first mirror 104 and the second mirror 108 can be respectively adjusted in angle, or the angle adjustment can be performed simultaneously, so that the left and right screens are coincident on the screen.
  • the two optical lens groups are different from the conventional lens lens.
  • the image passes through the lens group, the image is doubled in the horizontal direction with respect to the original image aspect ratio, and the vertical direction is unchanged, that is, the image maintains the original relative height, and the width
  • the magnification is doubled, and the left and right images are zoomed in horizontal direction 1: 2 without distortion, so that the aspect ratio of the left and right images displayed on the screen is restored to the aspect ratio of the original scene, so that the scene or the character is displayed.
  • the first polarizing filter 101 and the second polarizing filter 105 placed in front of the two optical lens groups are orthogonal to each other by 90 degrees. People need to wear the corresponding polarized glasses when watching movies, and let the viewer see the left image only when the viewer is looking at the picture. The right eye only sees the right image, so that a clear stereoscopic image can be seen.
  • FIG. 2 is a schematic structural view of an optical stereoscopic projection system according to a preferred embodiment of the present invention, wherein the optical stereoscopic projection system 200 includes a single projector and a lens 220 and an optical stereoscopic projection device 210.
  • the optical stereoscopic projection device 210 is coupled to the single projector and the lens 220 via an adapter ring.
  • the optical stereoscopic projection device 210 further includes:
  • a beam splitting prism 219 receives images from a single projector for dividing a horizontally compressed stereo image from the projector lens into two left and right images;
  • the projected stereo image is a left or right or left and right side format video Or picture, and compressed 2:1 in the horizontal direction;
  • the first mirror 214 and the second mirror 218 are configured to respectively reflect the left and right images separated by the beam splitting prism 219;
  • the two left and right images reflected by the mirror 214 and the second mirror 218 are respectively enlarged in an equivalent compression ratio in the horizontal direction, that is, 1: 2 scale-up; the first optical lens group (212, 213) and the second
  • the lateral distance between the optical lens groups (216, 217) is linearly proportional to the effective aperture of the film projector, and the larger the aperture, the greater the distance;
  • the first polarizing filter 211 and the second polarizing filter 215 are respectively configured to perform light from the first optical lens group (212, 213) and the second optical lens group (216, 217)
  • the polarized light processing forms a 90 degree orthogonal and projects the image onto the screen, forming two images that overlap.
  • the first mirror 214, the first optical lens group (212, 213) and the first polarizing filter 211 constitute a left lens;
  • the polarizing filter 215 constitutes a right lens;
  • the single projector and lens 220 can be a projector, a digital cinema projector, or a side-by-side (2:1 compressed) film film projector.
  • the usual video aspect ratio is 16:9 or 4:3. According to this ratio, if the side-by-side stereo video is not horizontally compressed, its aspect ratio is bound to reach 32:9. , 8: 3. Regardless of the aspect ratio, it is difficult to adapt to the coding and decoding capabilities of current digital products, and even film is difficult to be compatible. And whether film or image sensor is used to obtain such an image, the effective use area of the film or image sensor is very small. For a given film or image sensor, the image resolution obtained is much smaller than that of the film or the sensor itself. .
  • a stereoscopic video format is assumed here:
  • the left and right images are compressed by 2:1 in the horizontal direction, that is, assuming that the original scene is 16:9, then the left picture is 8:9.
  • the right image is also 8:9, and when combined, it becomes a 16:9 side-by-side picture, which is the best solution for the current coding technology, decoding technology, or the use of the effective photosensitive area of the image sensor.
  • the program source in the above stereoscopic video format is projected using a single projector and a lens 220, and is coupled to the optical stereoscopic projection device 21 by an adapter ring. When the stereoscopic image is projected to the dichroic prism, it is divided into left and right. Images, so that the left and right images are separated.
  • the separated image is reflected by two mirrors to the two optical lens groups for horizontal scaling of the corresponding proportions.
  • the projection distance is very close, so the angles of the first mirror 214 and the second mirror 218 will be fine-tuned.
  • the first mirror 214 and the second mirror 218 can respectively adjust the angles, or can perform angle adjustments synchronously, so that the left and right screens are coincident on the screen.
  • the two The optical lens group is different from the conventional lens lens.
  • the left and right two screens are horizontally 1 : 2 without distortion, so that the aspect ratio of the left and right screens displayed on the screen is restored to the aspect ratio of the original scene, so that the scene or the character will not be out of proportion in the display.
  • the first polarizing filter 211 and the second polarizing filter 215 placed in front of the two optical lens groups are orthogonal to each other by 90 degrees. People need to wear the corresponding polarized glasses when watching movies, and let the viewer see the left image only when the viewer is looking at the picture. The right eye only sees the right image, so that a clear stereoscopic image can be seen.
  • FIG. 3 is a flowchart of a stereoscopic projection method according to a preferred embodiment of the present invention.
  • the method S300 includes the following steps:
  • step S302 the stereoscopic image compressed from the horizontal direction of the single projector lens is divided into two left and right images by a dichroic prism; the stereoscopic image displayed is a left or right or left and right side format video or picture, and
  • the horizontal direction is 2:1 compressed
  • the stereoscopic image is projected to the dichroic prism, it is divided into two left and right images, so that the left and right parallel images are separated.
  • the single projector can be a projector, a digital cinema projector, or Parallel (including horizontal 2:1 compressed) film film projector;
  • step S304 the two mirrors that are adjustable by the angle respectively reflect the left and right images separated by the beam splitting prism; for the projector to work in different environments, the projection distance is far and near, so The angles of the two mirrors can be fine-tuned, and the two mirrors can respectively adjust the angles, or the angles can be adjusted simultaneously, so that the left and right images are coincident on the screen;
  • step S306 the two optical lens groups respectively receive the left and right images reflected by the two mirrors and perform the amplification of the equivalent compression ratio in the horizontal direction; the two optical lens groups and the conventional lens Different lenses, when the image passes through the lens group, the image is doubled in the horizontal direction relative to the original image, and the vertical direction is unchanged, that is, the image maintains the original relative height, and the width is relatively doubled.
  • Horizontal direction 1 2 magnification without distortion, so that the aspect ratio of the left and right pictures displayed on the screen is restored to the aspect ratio of the original scene, so that the scene or the person does not have a proportional imbalance in display;
  • the two optics The lateral distance between the lens groups is related to the effective aperture of the film projector, and the larger the aperture is, the larger the distance;
  • the two polarizing filters are respectively used to polarize light from the two optical lens groups to form a 90-degree orthogonal image and project the image onto the screen to form two overlapping images. image. People need to wear the corresponding polarized glasses when watching movies, and let the viewer see the left image only when the viewer is looking at the picture. The right eye only sees the right image, so that a clear stereoscopic image can be seen.
  • the optical stereoscopic projection device, the optical stereoscopic projection device system and the stereoscopic projection method disclosed in the present invention have the following advantages and particularities compared with the conventional stereoscopic projection technology: 1. Firstly, juxtaposition using horizontal compression The three-dimensional film source is the most economical choice in terms of current technical capabilities and resource utilization. 2. Horizontally magnifying the horizontally compressed image, reducing the original proportion of the image, although compared to two The projectors show the full-width left and right images at the same time, which has some loss in definition, but reduces the investment on the projection equipment. The single projector can display stereoscopic movies, which greatly reduces the threshold for the popularity of stereoscopic projection.
  • the device In front of the projector lens, the device can be externally mounted without any changes, and the stereoscopic projection can be performed. 3. Since the single projector is used to play stereoscopic movies and images, the adjustment and synchronization of the stereoscopic projection device is greatly simplified, and The synchronization performance is inherently the most excellent; 4, the device can form a red and blue stereoscopic movie by changing the polarizing filter into a red and blue complementary color filter; 5. The stereoscopic device does not need to be played during the process of playing the stereoscopic movie. Mechanical movement, without any mechanical wear, improves reliability compared to previous rotary stereoscopic playback devices for film stereoscopic movie playback. 6. The video playback device does not require complex devices such as computers, and does not require special software. It can play stereoscopic movies using ordinary high-definition video playback devices.

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

Abstract

La présente invention concerne un dispositif de projection stéréo optique (100) qui comprend un prisme de dédoublement de faisceau (109), deux miroirs (104, 108), un premier groupe de lentilles optiques (102, 103), un second groupe de lentilles optiques (106, 107), un premier filtre polarisant (101) et un second filtre polarisant (105). Le prisme de dédoublement de faisceau (109) divise une image stéréo qui provient d’une lentille de projection (220) et qui est réduite dans une direction horizontale en une image de gauche et une image de droite. Les deux miroirs (104, 108) réfléchissent l’image de gauche et l’image de droite divisée par le prisme de dédoublement de faisceau (109) respectivement. Le premier (102, 103) et le second (106, 107) groupes de lentilles optiques agrandissent l’image de gauche et l’image de droite réfléchies par les deux miroirs (104, 108) dans la direction horizontale, et les temps d’agrandissement sont égaux aux temps de réduction. Le premier (101) et le second (105) filtre polarisant amènent la lumière (qui provient respectivement du premier (102, 103) et du second (106, 107) groupe de lentilles optiques) à se polariser orthogonalement, et projettent les images sur un écran pour former des images chevauchantes. L’invention concerne également un système de projection stéréo optique (200) qui comprend le dispositif de projection stéréo optique (100) et un projecteur simple (220). L’invention concerne également un procédé de projection stéréo correspondant.
PCT/CN2009/072682 2009-07-08 2009-07-08 Dispositif de projection stéréo optique, système et procédé Ceased WO2011003234A1 (fr)

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PCT/CN2009/072682 WO2011003234A1 (fr) 2009-07-08 2009-07-08 Dispositif de projection stéréo optique, système et procédé

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PCT/CN2009/072682 WO2011003234A1 (fr) 2009-07-08 2009-07-08 Dispositif de projection stéréo optique, système et procédé

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485902A (en) * 2010-11-29 2012-05-30 Hae-Yong Choi Stereoscopic projection adapter
CN103064239A (zh) * 2011-10-19 2013-04-24 扬明光学股份有限公司 车用投影系统
CN104243945A (zh) * 2014-09-19 2014-12-24 西安中科晶像光电科技有限公司 一种单机双镜头3d投影机
US12016903B2 (en) 2014-11-21 2024-06-25 Ascendis Pharma Endocrinology Division A/S Long-acting growth hormone treatment
US12133883B2 (en) 2014-11-18 2024-11-05 Ascendis Pharma Endocrinology Division A/S Polymeric hGH prodrugs
US12226457B2 (en) 2009-12-15 2025-02-18 Ascendis Pharma Endocrinology Division A/S Dry growth hormone composition transiently linked to a polymer carrier
US12274737B2 (en) 2008-04-29 2025-04-15 Ascendis Pharma Endocrinology Division A/S PEGylated recombinant human growth hormone compounds
EP4579336A1 (fr) * 2023-12-28 2025-07-02 Plastic Omnium Lighting Systems GmbH Dispositif de projection de lumière

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033173U (zh) * 1988-04-01 1989-02-22 雷民 用于获得立体感的电视附加装置
JP2007328067A (ja) * 2006-06-07 2007-12-20 Dainippon Printing Co Ltd ステレオアダプタ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033173U (zh) * 1988-04-01 1989-02-22 雷民 用于获得立体感的电视附加装置
JP2007328067A (ja) * 2006-06-07 2007-12-20 Dainippon Printing Co Ltd ステレオアダプタ

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12274737B2 (en) 2008-04-29 2025-04-15 Ascendis Pharma Endocrinology Division A/S PEGylated recombinant human growth hormone compounds
US12226457B2 (en) 2009-12-15 2025-02-18 Ascendis Pharma Endocrinology Division A/S Dry growth hormone composition transiently linked to a polymer carrier
GB2485902A (en) * 2010-11-29 2012-05-30 Hae-Yong Choi Stereoscopic projection adapter
GB2485902B (en) * 2010-11-29 2015-01-21 Hae-Yong Choi 3D image convertible projection optical system
CN103064239A (zh) * 2011-10-19 2013-04-24 扬明光学股份有限公司 车用投影系统
CN103064239B (zh) * 2011-10-19 2016-04-13 扬明光学股份有限公司 车用投影系统
CN104243945A (zh) * 2014-09-19 2014-12-24 西安中科晶像光电科技有限公司 一种单机双镜头3d投影机
US12133883B2 (en) 2014-11-18 2024-11-05 Ascendis Pharma Endocrinology Division A/S Polymeric hGH prodrugs
US12016903B2 (en) 2014-11-21 2024-06-25 Ascendis Pharma Endocrinology Division A/S Long-acting growth hormone treatment
EP4579336A1 (fr) * 2023-12-28 2025-07-02 Plastic Omnium Lighting Systems GmbH Dispositif de projection de lumière

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