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WO1997042539A1 - Systeme d'affichage - Google Patents

Systeme d'affichage Download PDF

Info

Publication number
WO1997042539A1
WO1997042539A1 PCT/GB1997/001234 GB9701234W WO9742539A1 WO 1997042539 A1 WO1997042539 A1 WO 1997042539A1 GB 9701234 W GB9701234 W GB 9701234W WO 9742539 A1 WO9742539 A1 WO 9742539A1
Authority
WO
WIPO (PCT)
Prior art keywords
display system
reflective surface
stereo
images
stereo images
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/GB1997/001234
Other languages
English (en)
Inventor
Peter Denison Parks
Christopher Peter Parks
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.)
IMAGE QUEST Ltd
Original Assignee
IMAGE QUEST 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 IMAGE QUEST Ltd filed Critical IMAGE QUEST Ltd
Priority to EP97920841A priority Critical patent/EP0897548A1/fr
Priority to JP9539656A priority patent/JP2000509837A/ja
Priority to AU27068/97A priority patent/AU2706897A/en
Publication of WO1997042539A1 publication Critical patent/WO1997042539A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G02B30/20—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
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G02B30/35—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using reflective optical elements in the optical path between the images and the observer

Definitions

  • This invention relates to display systems, and in particular to a system for displaying three dimensional information in a surprisingly simple and efficient manner.
  • Printed publications, computer screens, televisions, liquid crystal displays (LCD) and other visual information media usually present images in two dimensions. Such images can give a degree of three dimensional "feel" to a picture, but a truly three dimensional (3D) image is impossible to produce on a two dimensional surface without the use of additional equipment or complicated (and expensive) manufacturing techniques or eye acrobatics.
  • MAGIC EYE Trade Mark pictures and stereoscopic pairs are known, but these require a viewer to control his/her eyes in a particular fashion, often resulting in the viewer going cross-eyed or wall-eyed and feeling uncomfortable.
  • Three-dimensional holograms are also known, but these are once again very expensive to produce and do not lend themselves to the production of accurate colours in the image.
  • books containing truly three dimensional images are very rare, partly due to the fact that it is uneconomical to produce such a book using known techniques.
  • the present invention overcomes this drawback and enables excellent quality three dimensional images to be viewed without the need for complicated equipment and without the viewer having to control his/her eyes in an unnatural way.
  • the invention can, however, also be applied to the production of three dimensional images from any two dimensional information medium or surface.
  • the present invention provides a 3D information image display system comprising a first order reflective surface arranged substantially perpendicular to and between a pair of stereo images, one image of which is reversed left to right, wherein a viewer, directing his line of sight towards the stereo image behind the reflective surface and positioned such that one eye views the stereo image behind the reflective surface directly and the other eye views the other stereo image reflected by the reflective surface, can readily appreciate the 3D information provided by the stereo images.
  • the viewer simply needs to look with both eyes in a particular direction to view the three dimensional image.
  • the quality of such an image is surprisingly good and is not dependent upon the viewer being perfectly positioned relative to the reflective surface - the viewer can move around a significant amount without losing the 3D image.
  • the stereo images lie in a first plane and the reflective surface is positioned midway between the images.
  • the plane in which the stereo images lie is flat.
  • the stereo images could lie on oppositely inclined surfaces or on a curved surface, or one of the images could lie on a curved surface and the reflective surface could be appropriately curved to negate the resulting curvature of the image.
  • Other arrangements can of course be envisaged, without departing from the present invention.
  • the reflective surface is spaced from the plane in which the stereo images lie.
  • the vision of a viewer is not complicated by information produced at the corner between the reflective surface and the plane in which the stereo images lie, especially when the reflective surface is less than perfect quality.
  • the height of the top of the reflective surface is preferably designed to be at a distance above the plane of the images that does not compromise an average person's visual near point (which is about 22cm (9 inches) from image to eye) .
  • an average person's visual near point which is about 22cm (9 inches) from image to eye
  • comfortable viewing of the 3D information can be readily achieved.
  • the stereo images lie in a single flat plane and the reflective surface is perpendicular to that plane, visual information from the stereo image in front of the reflective surface must travel further to the viewer's eye than the visual information from the stereo image behind the reflective surface. As a result, it may be preferable to magnify (perhaps by 5%) the stereo image in front of the reflective surface. Additionally or alternatively, the stereo image in front of the reflective surface may simply be brighter than that behind the reflective surface, so that the visual images reaching the viewer's eyes are as clear from both the front and rear stereo images.
  • the reflective surface is a front surface mirror.
  • a protective coating may be applied to the mirror, to avoid the mirror becoming damaged in any way.
  • the mirror is front surfaced to avoid any possibility of a double reflection occurring due to the surface of a transparent sheet in front of the mirror surface.
  • the reflective surface preferably tapers away from the stereo images. This is because the reflective surface needs only to transfer visual information from the stereo image in front of the reflective surface into the viewer's eye, and this information will clearly need to converge towards the eye. Hence, sharp corners on the mirror can be removed, and the edges of the mirror can be bevelled for safety, without affecting the efficiency of the reflective surface.
  • the display system can be formed in a multitude of different ways, provided that the basic requirement of the reflective surface being arranged substantially perpendicular to and between a pair of stereo images is satisfied.
  • the reflective surface can be supported in a boot or clip between the stereo images.
  • a stanchion could be used for supporting, in a cantilevered fashion, the reflective surface so that the reflective surface is positioned substantially perpendicular to and between a pair of stereo images.
  • Many other arrangements can, of course, be envisaged.
  • the means for supporting the reflective surface and the reflective surface itself are preferably handed to ensure that the reflective surface faces the correct one of the pair of stereo images. If the reflective surface faces the wrong stereo image, the viewer would need to look the other way and the three dimensional image viewed by a viewer will be reversed left to right.
  • the mirror may be double sided. Although the image would be reversed left to right when approached by a viewer from one direction, this should not be a problem provided that the image does not include letters or numerals but is simply a picture.
  • the stereo images are printed in a book.
  • the images will be printed either on the same page of the book or on adjacent facing pages, so that the reflective surface can be positioned between the two stereo images.
  • the book may be manufactured in the form of a ring binder so that the pages of the book lie as flat as possible.
  • the stereo images may be displayed on video screens, television screens or any other flat or curved display surface, such as video monitors, LCDs, computer processors, etc.
  • the stereo images may be static images or, alternatively, moving images.
  • FIG. 1 is a schematic perspective view of a first embodiment of a display system according to the present invention
  • Figure 2 is a schematic side view showing the optical paths from the stereo images to a viewer's eyes; and Figure 3 is a schematic perspective view of a second display system according to the present invention.
  • a three dimensional (3D) information image display system 1 is shown in Figure 1 of the drawings.
  • the system 1 comprises an inclined viewing surface 3 formed on an inclined platform 5, two supplies 7a, 7b of stereoscopic images 8a, 8b and a reflective surface 9 substantially perpendicular to and midway between the stereo images 8a, 8b.
  • the inclined platform 5 may incorporate means for adjusting the angle of inclination of the viewing surface 3.
  • the stereo images 8b of the right hand supply 7b have been reversed left to right so that, when viewed after reflection by the reflective surface 9, appear consistent with the left hand supply 7a of stereo images 8a.
  • Each supply 7a, 7b of stereo images 8a, 8b is held together by means of a ring binder 11 and attached to the platform 5 by means of clips 13.
  • the stereo images 8a, 8b can therefore be flipped into position in pairs from the supplies 7a, 7b and can lie substantially flat against the viewing surface 3 of the platform 5.
  • a particular supply 7a, 7b of stereo images 8a, 8b is no longer required, it can be replaced by a fresh supply.
  • ring bound text 15a, 15b can be accommodated on the viewing surface 3, so that information relating to a particular stereoscopic image can be readily accessed by a user of the display system 1.
  • the reflective surface 9 is a front surface mirror, supported by a rigid substrate 17.
  • the substrate 17, which may simply be a rigid plastics sheet, is received in a boot or recess 19 formed in the inclined platform 5 with a tight fit. As a result, the position of the reflective surface 9 is accurately defined. As can be seen in Figure 1, the upper corners of the support substrate 17 have been removed to avoid any danger to a user of the display system 1.
  • an inclined line can be marked on the support substrate 17 to indicate to a user of the display system 1 the orientation in which the support substrate 17 should be entered into the boot 19 in the platform 5.
  • the reflective surface 9 should always end up facing towards the correct stereo image 8b.
  • a viewer positions his nose adjacent the edge of the reflective surface 9 as shown in Figure 2.
  • one eye 21 of the viewer views directly the left stereo image 8a
  • the other eye 23 views the right hand stereo image 8b after it has been reflected by the reflective surface 9.
  • the viewer can use normal vision to appreciate easily the three dimensional information contained in the two stereoscopic images 8a, 8b.
  • This is a distinct improvement in both comfort and simplicity of apparatus over the known prior art systems.
  • such a display system 1 is remarkably tolerant as regards the exact positioning of the viewer and any movement of the viewer during viewing.
  • the stereo images 8a, 8b could be back lit or front lit, as required. Further, the angle of inclination of the viewing surface 3 could be adjustable to enable a viewer to use the display system 1 more comfortably.
  • FIG 3 of the drawings a second embodiment of display system 1 according to the present invention is shown.
  • the reflective surface 9 is supported by a stanchion 30 mounted on a support base 32.
  • the support base 32 includes a fence 34 against which a ring bound book 36 abuts to position accurately the stereo images 8a, 8b either side of the reflective surface 9.
  • the support base 32, stanchion 30 and reflective surface 9 can be purchased as one unit with the ring bound books 30 purchased separately, as required.
  • the cover of a book may accommodate a boot or clip for receiving a mirror, with the mirror being supplied with the book and carried in a pocket therein or purchased separately, as required.
  • a high quality mirror is used, when extremely detailed stereoscopic images are being viewed, this is likely to be purchased separately and stored carefully.
  • Cheaper mirrors may be used for less detailed stereoscopic images or when children are using the equipment, for example.

Landscapes

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

Abstract

Dans ce système d'affichage (1) d'images d'informations en trois dimensions comprenant une surface réfléchissante du premier ordre (9) disposée sensiblement perpendiculairement à une paire d'images stéréoscopiques (8a, 8b) et entre celles-ci, l'image (8b) étant inversée de droite à gauche, un utilisateur (21, 23) dirigeant sa ligne de vision vers l'image stéréoscopique (8a), derrière la surface réfléchissante (9), en étant placé de façon que l'un de ses yeux (21) regarde directement l'image stéréoscopique (8a) derrière la surface réfléchissante (9), et que son autre oeil (23) regarde l'autre image stéréoscopique (8b), réfléchie par la surface (9), peut apprécier facilement les informations tridimensionnelles constituées par les images stéréoscopiques (8a, 8b).
PCT/GB1997/001234 1996-05-08 1997-05-07 Systeme d'affichage Ceased WO1997042539A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97920841A EP0897548A1 (fr) 1996-05-08 1997-05-07 Systeme d'affichage
JP9539656A JP2000509837A (ja) 1996-05-08 1997-05-07 ディスプレー装置
AU27068/97A AU2706897A (en) 1996-05-08 1997-05-07 A display system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9609626A GB2312966B (en) 1996-05-08 1996-05-08 Stereo image display system with mirror
GB9609626.8 1996-05-08

Publications (1)

Publication Number Publication Date
WO1997042539A1 true WO1997042539A1 (fr) 1997-11-13

Family

ID=10793378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/001234 Ceased WO1997042539A1 (fr) 1996-05-08 1997-05-07 Systeme d'affichage

Country Status (5)

Country Link
EP (1) EP0897548A1 (fr)
JP (1) JP2000509837A (fr)
AU (1) AU2706897A (fr)
GB (1) GB2312966B (fr)
WO (1) WO1997042539A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003100501A1 (fr) * 2002-05-23 2003-12-04 Enrique De Font-Reaulx Rojas Systeme de vision stereoscopique d'images en temps reel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2342463B (en) * 1998-10-09 2002-09-04 Brs Vision Ltd Stereoscopic viewing apparatus with mirror
WO2001018588A1 (fr) * 1999-09-07 2001-03-15 Peter Denison Parks Systeme d'affichage d'image stereo
WO2001046742A2 (fr) * 1999-12-13 2001-06-28 The Trustees Of Columbia University In The City Of New York Capteurs stereo catadioptriques rectifies

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557169A (fr) *
FR1030143A (fr) * 1950-12-27 1953-06-10 Stéréoscope à miroirs à vision directe
GB2131969A (en) * 1982-11-25 1984-06-27 Charles Douglas Wehner Stereoscopic viewers
GB2221054A (en) * 1988-07-22 1990-01-24 Peter Mcduffie White Viewer for stereoscopic images
DE29505516U1 (de) * 1995-04-05 1995-06-14 Kabus, Astrid, 68165 Mannheim Vorrichtung zur Generierung von Raumbildern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB645296A (en) * 1948-03-23 1950-10-25 Stanley Charles Evans Improvements in stereoscopes
GB784919A (en) * 1955-08-20 1957-10-16 Adriano Betti Improvements in stereoscopic viewing devices
GB919127A (en) * 1958-05-14 1963-02-20 Artia A book for spatial observation of sterioscopic images
US3476458A (en) * 1966-12-22 1969-11-04 Lars Olof Richard Landgren Stereopicture reproduction
CA1151453A (fr) * 1979-06-18 1983-08-09 George N. Stock Dispositif de visionnement stereoscopique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557169A (fr) *
FR1030143A (fr) * 1950-12-27 1953-06-10 Stéréoscope à miroirs à vision directe
GB2131969A (en) * 1982-11-25 1984-06-27 Charles Douglas Wehner Stereoscopic viewers
GB2221054A (en) * 1988-07-22 1990-01-24 Peter Mcduffie White Viewer for stereoscopic images
DE29505516U1 (de) * 1995-04-05 1995-06-14 Kabus, Astrid, 68165 Mannheim Vorrichtung zur Generierung von Raumbildern

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JAC. G. FERWERDA: "the world of 3-D: a practical guide to stereo photography", 1990, 3-D BOOK PUBLICATIONS, BORGER, NL, XP002011678 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003100501A1 (fr) * 2002-05-23 2003-12-04 Enrique De Font-Reaulx Rojas Systeme de vision stereoscopique d'images en temps reel

Also Published As

Publication number Publication date
EP0897548A1 (fr) 1999-02-24
JP2000509837A (ja) 2000-08-02
GB2312966B (en) 1998-08-26
GB2312966A (en) 1997-11-12
AU2706897A (en) 1997-11-26
GB9609626D0 (en) 1996-07-10

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