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DE3929583A1 - Stereoscopic screen for three=dimensional cinematography or TV - has surface formed by large number of concave or convex optical elements - Google Patents

Stereoscopic screen for three=dimensional cinematography or TV - has surface formed by large number of concave or convex optical elements

Info

Publication number
DE3929583A1
DE3929583A1 DE3929583A DE3929583A DE3929583A1 DE 3929583 A1 DE3929583 A1 DE 3929583A1 DE 3929583 A DE3929583 A DE 3929583A DE 3929583 A DE3929583 A DE 3929583A DE 3929583 A1 DE3929583 A1 DE 3929583A1
Authority
DE
Germany
Prior art keywords
stereo
screen
optical elements
concave
glasses
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
DE3929583A
Other languages
German (de)
Inventor
Jakob Neubauer
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE3929583A priority Critical patent/DE3929583A1/en
Publication of DE3929583A1 publication Critical patent/DE3929583A1/en
Ceased legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20Optical 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
    • G02B30/26Optical 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 autostereoscopic type
    • G02B30/27Optical 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 autostereoscopic type involving lenticular arrays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)

Abstract

The stereo screen for 3-dimensional cinematography has a surface formed by a large number of optical elements, closely packed together, to form parts of convex spheres with a reflective surface. Pref. the screen surface uses a large number of reflective, spherical convex elements for imaging a number of point focal zones, to obtain a stereo image via projected image pairs. Alternatively the screen surface is provided by a number of optical elements forming part of a concave spheres with a transparent surface. ADVANTAGE - Provides stereo image without requiring use of 3-D glasses.

Description

Es ist bekannt, daß alle Raumbildkinoverfahren ohne Ste­ reobrillen, die bis heute beantragt sind, wesentliche Mängel haben. Üblich stützen sie sich an:It is known that all spatial image cinema processes without Ste reobrillen, which have been applied for to date, essential Have defects. They usually support themselves on:

  • a) erhebliche Bewegungsfreiheiteinschränkungen der Zuschauer beim Stereobildbetrachten.a) Significant restrictions on the freedom of movement Watching viewers while viewing stereo images.
  • b) Einschränkung des Rauminhalts.b) Restricting space.
  • c) Zusammengesetztheit der drehbaren Rasterelementen­ systemen die eine weite Einführung verhindert.c) Composition of the rotatable grid elements systems that prevent a wide introduction.

Das beantragte Verfahren hat die Mängel nicht. Sie werden durch eine Projektion auf Stereoschirm der kei­ ne diffuse Reflexion des Lichtes hat, beseitigt. Die Stereoschirmfläche wird als Gesamtheit mehreren op­ tischen Bauelementen, die eng einander anliegen, aus­ geführt. Die Bauelemente sind dargestellt als:The requested procedure does not have the shortcomings. they are projected onto the kei stereo screen ne diffuse reflection of the light. The The stereo screen area is a total of several op table components that are close to each other guided. The components are shown as:

  • 1. Teil von Konvexsphäre, die eine spiegelnde Fläche hat, bei Aufprojektion,1st part of convex sphere, which is a reflective surface has, when projected,
  • 2. Teil von Konkavsphäre auf einer Fläche von Durch­ sichtsbrechungsmaterial bei Durchsichtprojektion.2. Part of concave sphere on an area of through Visual refraction material for see-through projection.

Wirkungsprinzip des Stereoschirmes enthaltet sich in folgendem: (Beispiel bei Aufprojektion).Principle of operation of the stereo umbrella is contained in the following: (example with front projection).

Es ist bekannt, daß spiegelndes Segment, das sphä­ risch konvex ist, eine Eigenschaft besitzt ein Licht­ bündel, das auf das Segment parallel fällt, gerichtet zu verstreuen. Wenn man eine Echofläche von mehreren solchen Segmenten zusammensetzt merkt man, daß die Auflichtstrahlen vom jeden Element im Raum gegensei­ tig sich durchkreuzen werden. Damit wird grenzlose Menge von Punktfokalzonen gebaut. Und zur jeden von dieser Zonen kommt ein Lichtteil vom jeden Element. In der Zeichnung ist das als einer der Strahlen vorgewiesen, der dank der gestrichelten Lichtverstreu­ ung vom Element unvermeindlich in diese Fokalzone kommen wird. Wenn die Elementengröße außerhalb des Augenauflösungsvermögen liegt, dann wird das Zuschau­ erauge in solcher Fokalzone die Schirmfläche gleich­ mäßig beleuchtet sehen. Der Stereoschirm formt grenz­ lose Menge solcher Fokuse. Deswegen kann der Zuschau­ er vom jeden Vorschirmraumort den Schirm beleuchtet sehen. Aber nur mit einem Auge, weil jedem Fokalpunkt wird streng bestimmte Achselinie entsprechen, wo der Fokalpunkt sich wiederstellen wird. Die Menschenseh­ vermögensachse sind parallel. Um die Sichtbedingungen für beide Augen zu hervorbringen, braucht man noch eine Lichtquelle. Die Projektionsachse dieser Licht­ quelle muß parallel mit erster Projektionsachse und 65 Millimeter davon entfernt sein. Bei zwei Bildwerfern, statt Lichtquellen, die rechtes und linkes Bildpaar projizieren, im Zuschauersaal, durch den Stereoschirm werden zwei Reihen grenzloser Menge Punktfokalzonen hervorgehoben, die unabhängig voneinander sind. It is known that the reflective segment, the spherical is convex, a property has a light bundle that falls parallel to the segment to scatter. If you have an echo area of several such segments one realizes that the Incident light rays from every element in the room will cross each other. It will be limitless Set of point focus zones built. And for each of in these zones a light part comes from each element. In the drawing this is one of the rays presented thanks to the dashed light scattering of the element inevitable in this focal zone will come. If the item size is outside the Then the spectator see the screen area in such a focal zone see moderately illuminated. The stereo screen shapes borders loose amount of such focus. That's why the audience can he illuminates the screen from each screen room location see. But only with one eye, because every focal point will correspond strictly to the axillary line where the Focal point will be restored. The human sight wealth axis are parallel. To the visibility conditions to produce for both eyes is still needed a light source. The projection axis of this light source must be parallel to the first projection axis and 65 millimeters away from it. With two projectors, instead of light sources, the right and left pair of images project, in the auditorium, through the stereo screen become two rows of limitless set of point focus zones highlighted that are independent of each other.  

Die Fokalzonen werden den ganzen Zuschauersaal füllen, wo­ durch der Zuschauer in jedem beliebigen Zuschauersaalort leicht eine Position findet, wo er mit rechtem Auge das rechte Bild und mit linkem- linkes sehen wird.The focal zones will fill the entire auditorium where by the viewer in any auditorium location easily find a position where he can see it with his right eye right picture and with left- left will see.

Den selben Effekt kann man beobachten bei Durchsichtpro­ jektion mit Stereoschirm, der aus Durchsichtsbrechungsele­ menten besteht. Die Elemente haben in der Schnittfläche eine Form, die als Teil von Konkavsphäre ausgeführt ist. Solcher Stereoschirm kann man beim Raumbildfernsehen ver­ wenden.The same effect can be seen with see-through pro projection with stereo screen, made of transparent refractive element ment exists. The elements have in the cut surface a shape executed as part of the concave sphere. Such a stereo screen can be seen in room television turn.

Bei Erzeugung von spiegelnden(brechungs) sphärischen Ele­ menten muß man beachten: - um den Lichtrückwurf (die Licht­ brechung) vom Element zum Element zu vermeiden, soll der Bogenradius des sphärischen Segments entsprechend groß sein.When generating reflective (refractive) spherical elements You have to pay attention to the following: refraction) from element to element, the Arc radius of the spherical segment correspondingly large be.

Claims (5)

1. Stereoschirm für Raumbildkino ohne Stereobrillen, dadurch gekennzeichnet, daß die Stereoschirmfläche als Gesamtheit mehreren optischen Elementen, die eng einander anliegen, ausgeführt wird, die als Teil von Konvexsphäre mit spiegeln­ der Fläche dargestellt sind.1. Stereo screen for spatial cinema without stereo glasses, characterized in that the stereo screen surface is executed as a whole several optical elements that are closely adjacent to each other, which are shown as part of a convex sphere with mirrors of the surface. 2. Stereoschirm für Raumbildkino ohne Stereobrillen nach Anspruch 1, dadurch gekennzeichnet, daß die spiegelnde sphä­ rische Konvexelementen zur Bildung grenzloser Menge von Punktfokalzonen versehen sind, wodurch ein Stereobild bei Bildpaaraufprojektion gebaut wird.2. Stereo screen for room cinema without stereo glasses after Claim 1, characterized in that the reflective spher convex elements for the formation of an unlimited amount of Dot focus zones are provided, creating a stereo image Image pair projection is built. 3. Stereoschirm für Raumbildfernsehen ohne Stereobrillen, dadurch gekennzeichnet, daß die Stereeoschirmfläche als Ge­ samheit mehreren optischen Elementen, die einander anlie­ gen, ausgeführt wird, die als Teil von Konkavsphäre auf ei­ ner Fläche von Durchsichtsbrechungsmaterial dargestellt sind.3. stereo screen for room television without stereo glasses, characterized in that the stereo screen area as Ge several optical elements that are adjacent to each other gene, which is executed as part of concave sphere on egg ner area of see through refractive material are. 4. Stereoschirm für Raumbildfernsehen ohne Stereobrillen nach Anspruch 3, dadurch gekennzeichnet, daß die Durchsichts­ brechungskonkavsphärenelementen zur Bildung grenzloser Mengen von Punktfokalzonen versehen sind, wodurch ein Ste­ reobild bei Bildpaardurchsichtsprojektion gebaut wird.4. Stereo screen for room television without stereo glasses according to claim 3, characterized in that the see-through Refractive concave spheres to form limitless Amounts of point focal zones are provided, whereby a Ste reobild is built with image pair projection projection. 5. Stereoschirm für Stereokino ohne Stereobrillen, dadurch gekennzeichnet, daß die Stereoschirmfläche als Gesamtheit mehreren optischen Elementen, die eng einander anliegen ausgeführt wird, die als Teil von Konkavsphäre auf einer Flä­ che von Durchsichtsbrechungsmaterial dargestellt sind.5. Stereo screen for stereo cinema without stereo glasses, thereby characterized that the stereo screen area as a whole several optical elements that are close to each other running as part of concave sphere on a surface surface of transparent refraction material are shown.
DE3929583A 1989-09-06 1989-09-06 Stereoscopic screen for three=dimensional cinematography or TV - has surface formed by large number of concave or convex optical elements Ceased DE3929583A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3929583A DE3929583A1 (en) 1989-09-06 1989-09-06 Stereoscopic screen for three=dimensional cinematography or TV - has surface formed by large number of concave or convex optical elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3929583A DE3929583A1 (en) 1989-09-06 1989-09-06 Stereoscopic screen for three=dimensional cinematography or TV - has surface formed by large number of concave or convex optical elements

Publications (1)

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DE3929583A1 true DE3929583A1 (en) 1990-04-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025899A1 (en) * 1993-05-04 1994-11-10 Xenotech Research Pty. Ltd. Stereoscopic display unit
DE19736158A1 (en) * 1997-08-20 1999-02-25 Helmut Wuerz Spatially reproducible image generation method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740954A (en) * 1953-01-19 1956-04-03 Kleefeld Georges Viewing plate for television screen
JPS5722219A (en) * 1980-07-16 1982-02-05 Seizaburo Kimura Stereoscopic viewing lens plate of plane image
FR2520518A1 (en) * 1982-01-22 1983-07-29 Centre Nat Rech Scient OPTICAL APPARATUS AND METHOD FOR INSTANTLY RECORDING OR VISUALIZING ENLARGED AND STEREOSCOPIC IMAGES OF OBJECTS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740954A (en) * 1953-01-19 1956-04-03 Kleefeld Georges Viewing plate for television screen
JPS5722219A (en) * 1980-07-16 1982-02-05 Seizaburo Kimura Stereoscopic viewing lens plate of plane image
FR2520518A1 (en) * 1982-01-22 1983-07-29 Centre Nat Rech Scient OPTICAL APPARATUS AND METHOD FOR INSTANTLY RECORDING OR VISUALIZING ENLARGED AND STEREOSCOPIC IMAGES OF OBJECTS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Fernseh- und Kino-Technik 1970, Nr. 1, S. 13-18 *
Fernseh- und Kino-Technik 42, Nr. 8, S. 371-376 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671992A (en) * 1993-04-28 1997-09-30 Xenotech Research Pty. Ltd. Stereoscopic display unit
WO1994025899A1 (en) * 1993-05-04 1994-11-10 Xenotech Research Pty. Ltd. Stereoscopic display unit
DE19736158A1 (en) * 1997-08-20 1999-02-25 Helmut Wuerz Spatially reproducible image generation method

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