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WO2009091366A1 - Systeme d'affichage - Google Patents

Systeme d'affichage Download PDF

Info

Publication number
WO2009091366A1
WO2009091366A1 PCT/US2008/000618 US2008000618W WO2009091366A1 WO 2009091366 A1 WO2009091366 A1 WO 2009091366A1 US 2008000618 W US2008000618 W US 2008000618W WO 2009091366 A1 WO2009091366 A1 WO 2009091366A1
Authority
WO
WIPO (PCT)
Prior art keywords
display
partial mirror
cone
mirror cone
display system
Prior art date
Application number
PCT/US2008/000618
Other languages
English (en)
Inventor
Youngshik Yoon
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Priority to PCT/US2008/000618 priority Critical patent/WO2009091366A1/fr
Publication of WO2009091366A1 publication Critical patent/WO2009091366A1/fr

Links

Classifications

    • 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
    • G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
    • G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images

Definitions

  • the present invention is related to the field of display systems.
  • 3D display systems are known to provide highly attractive and effective 3D images for viewers
  • traditional 3D displays systems require increased image production time and increased equipment cost over traditional 2D display systems.
  • display systems have been developed that provide 2D images in a manner that allows viewers to perceive the 2D images in what approximates the perception of 3D images.
  • One such system implements a plurality of half-mirrors (or one-way mirrors) arranged generally in a pyramid where each half-mirror is configured to reflect light from a projector (located outside the pyramid) away from a center of the pyramid.
  • the projector is generally configured to project different 2D images to each of the half-mirrors so that as a viewer moves around the pyramid, the viewer perceives a change in perspective of the image being viewed as if the image were a 3D image.
  • the overall effect perceived by the viewer includes the perception that the 2D image is floating inside the pyramid. Since the half-mirrors allow viewing of the perceived 3D image along with the natural background of the environment surrounding the pyramid, the 3D perception of the 2D images is greatly enhanced. However, the planar surfaces of the pyramid and the associated support structure for the half-mirrors interrupt the 3D perception of the 2D image as the viewer moves around the pyramid.
  • the system can only provide one point of view of a perceived floating image per half-mirror, further interfering with the 3D perception of the 2D image.
  • Other systems which provide the perception of a 3D image have implemented thick glass plates that produce optical interference patterns resulting in the 3D image effect.
  • the thick glass plates greatly reduce the perceived brightness of
  • the present invention relates to a display system comprising a display for emitting light and a partial mirror cone having an outer surface generally facing the display, the partial mirror cone being configured to reflect a portion of the light.
  • Figure 1 is an oblique view of a display system according to an embodiment of the present invention
  • Figure 2 is a schematic diagram the display system of Figure 1 and showing a true light path
  • Figure 3 is a schematic diagram of the display system of Figure 1 and showing a perceived light path
  • Figure 4 is a schematic diagram of the polar coordinate system as related to the light emitting side of a panel display of the display system of Figure 1 ;
  • Figure 5 is an orthogonal view of another display system according to an alternative embodiment of the present invention.
  • Figure 6 is an orthogonal view of another display system according to another alternative embodiment of the present invention.
  • Display system 100 comprises a panel display 102 (liquid crystal display, plasma panel display, or may be replaced by a projector with a screen) and a partial mirror cone 104, wherein partial mirror is intended to mean that the cone reflects part the light to the viewer and transmits part of the light.
  • the partial mirror cone can be a half- mirror.
  • Display system 100 is configured so that a tip end 106 of the partial mirror cone 104 faces a light emitting side 108 of the panel display 102 thereby orienting an outer surface 1 11 of the partial mirror cone 104 toward the panel display 102.
  • the panel display 102 and partial mirror cone 104 are generally oriented with respect to each other so that an angle 1 10 between the outer surface 11 1 of the partial mirror cone 104 and the substantially planar light emitting side 108 is constant about the circumference of the partial mirror cone 104.
  • the angle 1 10 may have a value of 45°.
  • angle 110 may be an angle other than 45° or may vary about the circumference of the partial mirror cone 104.
  • the partial mirror cone 104 may not be aligned so that the angle between the outer surface 111 of the partial mirror cone 104 and the light emitting side 108 is substantially constant.
  • a reflective layer of the partial mirror cone 104 may be similarly aligned so that a central axis 112 of the partial mirror cone 104 is directionally aligned with a primary direction of a light beam (not shown) emitted from a imaging device such as a projector (not shown) or other light emitting device (not necessarily a panel display) suitable for transmitting an image.
  • the partial mirror cone 104 is shaped so that a cone angle 114 as measured between the central axis 112 and the outer surface 111 of the partial mirror cone 104 is substantially 45° about the entire circumference of the partial mirror cone 104.
  • the cone angle 114 may be an angle other than 45° or may vary about the circumference of the partial mirror cone 104.
  • Partial mirror cone 104 is oriented such that the central axis 112 is substantially centered on a center of the light emitting side 108. While tip end 106 is illustrated as being truncated, in alternative embodiments, the tip end 106 may substantially form a point.
  • display system 100 utilizes 2D images to create a visual display that is perceived by a viewer to be a free-floating 3D image.
  • the true light path 200 of a light beam 202 emitted from the panel display 102 comprises a first leg 204 where the light beam 202 travels from the light emitting side 108 of the panel display 102 to the reflective partial mirror cone 104.
  • the true light path 200 further comprises a second leg 206 where the light beam 202 is reflected from the reflective partial mirror cone 104 and to a viewer 208.
  • the light beam 202 is perceived by the viewer 208 to travel along a perceived light path 210 from within an internal volume 212 of the partial mirror cone 104 and directly to the viewer 208.
  • the panel display 102 is configured to project a 2D image 306 using a polar coordinate system 300.
  • Figure 4 depicts the layout of the polar coordinate system 300 as it is used with respect to the light emitting side 108 of the panel display 102.
  • the polar coordinate system 300 comprises a pole 302 and a polar axis 304 from which a radial coordinate r and an angular coordinate ⁇ are determined, respectively.
  • the panel display 102 may project a plurality of identical 2D images 306 onto the partial mirror cone 104 at various angular displacements about the pole 302 from the polar axis 304.
  • the 2D images 306 are shown as being projected onto the partial mirror cone 104 at eight different locations. This arrangement provides the illusion of a free-floating 3D image visible from various locations about the pole 302.
  • the continuous structure of the partial mirror cone 104 offers viewing of the free-floating 3D image unobstructed by bulky structural supports as a viewer moves around the partial mirror cone 104.
  • more or fewer than eight separate identical 2D images 306 may be reflected from the partial mirror cone 104, thereby providing more or fewer optimal viewpoints about the partial mirror cone 104, respectively.
  • a left-right viewing angle of a viewer may be increased by increasing the cone angle 114 or decreased by decreasing the cone angle 1 14.
  • the 2D images 306 emitted by the panel display 102 will appear distorted from their originally captured and intended dimensions.
  • the 2D images 306 may be appropriately manipulated using the above-described polar coordinate system 300.
  • a display system 400 comprises an upper panel display 402, a lower panel display 404, an upper partial mirror cone 406, and a lower partial mirror cone 408.
  • the bases of the upper partial mirror cone 406 and lower partial mirror cone 408 are adjacent each other and are generally aligned along a shared central axis 410.
  • Upper panel display 402 and upper partial mirror cone 406 cooperate in a substantially similar manner as panel display 102 and partial mirror cone 104 to provide a viewer the perception of a free-floating 3D image.
  • lower panel display 404 and lower partial mirror cone 408 cooperate in a substantially similar manner as panel display 102 and partial mirror cone 104 to provide a viewer the perception of a free-floating 3D image.
  • display system 400 differs from display system 100 in that an entire free-floating 3D image comprising an upper segment and a lower segment.
  • the display system 400 provides a larger display area than the display area provided by display system 100 without decreasing image resolution (where partial mirror cone 102, upper partial mirror cone 406, and lower partial mirror cone 408 are each substantially the same size). It will be appreciated that the entire display system 400 may be rotated, thereby allowing viewing of the free-floating 3D image from a variety of vantage points with respect to the orientation of the display system 400.
  • display system 400 may be rotated to a horizontal position so that the upper panel display 402 is located leftward from the lower panel display 404, as perceived from the vantage point of a viewer. In this horizontal position, the entire free-floating 3D image would comprise a leftward segment and a rightward segment.
  • the display system 400 may be oriented in any suitable manner with respect to a viewer and is not limited to the vertical orientation shown in Figure 5 or the horizontal orientation described above.
  • a display system 500 comprises an upper panel display 502, a lower panel display 504, a partial mirror prolate spheroid upper half 506, and a partial mirror prolate spheroid lower half 508.
  • the partial mirror prolate spheroid upper half 506 and partial mirror prolate spheroid lower half 508 are shown as being joined at a mid-plane 510.
  • the display system 500 operates substantially similarly to the display system 400. However, there are significant differences in geometry between the cones and the prolate spheroid.
  • the 2D images to be projected from upper panel display 502 and lower panel display 504 are manipulated using a polar coordinate system substantially similar to polar coordinate system 300 to prevent unwanted distortion that would otherwise result due to the non-linear surface of the partial mirror prolate spheroid upper half 506 and partial mirror prolate spheroid lower half 508.
  • the entire display system 500 may be rotated, thereby allowing viewing of the free-floating 3D image from a variety of vantage points with respect to the orientation of the display system 500.
  • display system 500 may be rotated to a horizontal position so that the upper panel display 502 is located leftward from the lower panel display 504, as perceived from the vantage point of a viewer.
  • the display system 500 may be oriented in any suitable manner with respect to a viewer and is not limited to the vertical orientation shown in Figure 6 or the horizontal orientation described above.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

L'invention concerne un système d'affichage comprenant un écran destiné à émettre de la lumière et un cône à miroir partiel pourvu d'une surface externe faisant généralement face à l'écran, ledit cône étant configuré pour réfléchir une partie de la lumière.
PCT/US2008/000618 2008-01-17 2008-01-17 Systeme d'affichage WO2009091366A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2008/000618 WO2009091366A1 (fr) 2008-01-17 2008-01-17 Systeme d'affichage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/000618 WO2009091366A1 (fr) 2008-01-17 2008-01-17 Systeme d'affichage

Publications (1)

Publication Number Publication Date
WO2009091366A1 true WO2009091366A1 (fr) 2009-07-23

Family

ID=40885552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/000618 WO2009091366A1 (fr) 2008-01-17 2008-01-17 Systeme d'affichage

Country Status (1)

Country Link
WO (1) WO2009091366A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018185201A3 (fr) * 2017-04-07 2018-12-27 Carl Zeiss Microscopy Gmbh Ensemble microscope pour l'obtention et l'affichage d'images tridimensionnelles d'un échantillon

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839713A (en) * 1971-12-31 1974-10-01 Fujitsu Ltd Display system for plasma display panels
US5754260A (en) * 1992-10-09 1998-05-19 Ag Technology Co., Ltd. Projection type color liquid crystal optical apparatus
US5798805A (en) * 1995-01-30 1998-08-25 Ag Technology Co., Ltd. Projection type display apparatus
US5844638A (en) * 1992-10-09 1998-12-01 Ag Technology Co., Ltd. Light source apparatus using a cone-shaped element and an applied apparatus thereof
US20020114601A1 (en) * 2000-11-30 2002-08-22 Manabu Kagami Method for manufacturing optical transmission device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839713A (en) * 1971-12-31 1974-10-01 Fujitsu Ltd Display system for plasma display panels
US5754260A (en) * 1992-10-09 1998-05-19 Ag Technology Co., Ltd. Projection type color liquid crystal optical apparatus
US5844638A (en) * 1992-10-09 1998-12-01 Ag Technology Co., Ltd. Light source apparatus using a cone-shaped element and an applied apparatus thereof
US5798805A (en) * 1995-01-30 1998-08-25 Ag Technology Co., Ltd. Projection type display apparatus
US20020114601A1 (en) * 2000-11-30 2002-08-22 Manabu Kagami Method for manufacturing optical transmission device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018185201A3 (fr) * 2017-04-07 2018-12-27 Carl Zeiss Microscopy Gmbh Ensemble microscope pour l'obtention et l'affichage d'images tridimensionnelles d'un échantillon
CN110431465A (zh) * 2017-04-07 2019-11-08 卡尔蔡司显微镜有限责任公司 用于拍摄和呈现样品的三维图像的显微镜装置
CN110431465B (zh) * 2017-04-07 2021-12-21 卡尔蔡司显微镜有限责任公司 用于拍摄和呈现样品的三维图像的显微镜装置

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