DE4038552A1 - Three=dimensional imaging system - uses successive partial images provided in projection layers at differing distances from observer - Google Patents

Three=dimensional imaging system - uses successive partial images provided in projection layers at differing distances from observer

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Publication number
DE4038552A1
DE4038552A1 DE4038552A DE4038552A DE4038552A1 DE 4038552 A1 DE4038552 A1 DE 4038552A1 DE 4038552 A DE4038552 A DE 4038552A DE 4038552 A DE4038552 A DE 4038552A DE 4038552 A1 DE4038552 A1 DE 4038552A1
Authority
DE
Germany
Prior art keywords
partial images
observer
imaging system
dimensional imaging
layers
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.)
Withdrawn
Application number
DE4038552A
Other languages
German (de)
Inventor
Ernst Guenter Montanus
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.)
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 DE4038552A priority Critical patent/DE4038552A1/en
Publication of DE4038552A1 publication Critical patent/DE4038552A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
    • 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
    • G02B30/50—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
    • G02B30/52—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 the 3D volume being constructed from a stack or sequence of 2D planes, e.g. depth sampling systems
    • 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
    • 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
    • H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
    • H04N13/395—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume with depth sampling, i.e. the volume being constructed from a stack or sequence of 2D image planes

Abstract

The three-dimensional imaging system uses a number of differing partial images provided in successive projection layers lying at different distances from the observer. The partial images are directed onto the successive in a rapid sequence, so that they appear simultaneous to the observer, to provide an overall image. Pref. the successive partial images are provided by nematic or ferromagnetic liquid crystal layers, allowing transparency of the layers which are not being utilised. ADVANTAGE - Simple three-dimensional imaging system.

Description

Die Erzeugung räumlicher Abbildungen ist bereits durch verschiedene Vorschläge bekannt gemacht worden. Entweder wird hierbei von der getrennten Abbildung der für räumliches Sehen erforderlichen unterschiedlichen Teilbilder in den Augen des Betrachters ausgegangen oder es sollen unterschiedliche Teilbilder für Vorder- und Hintergrund durch schnelle mechanische Bewegung der Projektionsfläche in Betrachterrichtung nacheinander erzeugt werden, die durch Ausnutzung der Augenträgheit zu einem räumlichen Bildeindruck verschmelzen.The creation of spatial images is already done by various Proposals have been announced. Either from the separate mapping of those required for spatial vision different drawing files in the eyes of the beholder or different drawing files for foreground and background due to rapid mechanical movement of the projection surface are generated one after the other in the viewing direction, by using the inertia to create a spatial image impression merge.

Die Erfindung geht demgegenüber von mehreren fest hintereinander angeordneten Projektionsflächen aus, auf die Schichtbilder einer bestimmten räumlichen Distanz in schnellem Wechsel nacheinander projiziert werden. Hierbei bleiben die nicht zur momentanen Teilabbildung herangezogenen Projektionsflächen lichtdurchlässig, also für die Zeit der dahinter erfolgenden Abbildung durchsichtig. Die hierfür erforderliche technische Ausgestaltung wird durch hinreichend dünne Schichten aus nematischen Kristallen (LCD) erreicht, wobei in Multiplex-Ansteuerung die Bildpunkte in der jeweiligen Projektionsfläche selbst erzeugt werden. Die für den Bewegungseindruck über mehrere hintereinander geschaltete größere Bildflächen erforderliche Schaltgeschwindigkeit wird ferromagnetische statt der bisher üblichen nematischen Flüssigkristalle erfordern. Zur Erzeugung des räumlichen Bildeindrucks selbst reichen 2-3 hintereinander in einer Distanz von ca. 1/50 der Flächenbreite stehende Kristallflächen aus.In contrast, the invention is based on several in a row arranged projection surfaces, on the slices of a certain spatial distance in rapid succession be projected. This does not remain for the current partial image used projection surfaces translucent, so transparent for the time of the image behind it. The the technical design required for this is sufficient achieved thin layers of nematic crystals (LCD), where in multiplex control the pixels in the respective Projection screen itself. The one for the movement impression over several larger picture areas connected in series required switching speed is ferromagnetic instead of the hitherto usual nematic liquid crystals. 2-3 are sufficient to generate the spatial image impression itself in a row at a distance of approx. 1/50 of the area width standing crystal surfaces.

Claims (3)

1. Verfahren zur Erzeugung räumlicher Abbildungen durch alternierende Teilbilder auf mehreren Projektionsflächen mit unterschiedlicher Distanz zum Betrachter, dadurch gekennzeichnet, daß die Abbildung auf mehreren Projektionsschichten in unterschiedlicher Distanz vom Betrachter erfolgt.1. A method for generating spatial images by alternating partial images on several projection surfaces at different distances from the viewer, characterized in that the imaging takes place on several projection layers at different distances from the viewer. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Abbildung in einem so schnellen Wechsel auf diesen Projektionsschichten erfolgt, daß für den Betrachter mit Rücksicht auf die bekannte Augenträgheit ein als gleichzeitig angesehenes Gesamtbild entsteht.2. The method according to claim 1, characterized in that the image in such a quick change on these projection layers is done for the viewer with respect to the known sluggishness an overall image viewed as a simultaneous one arises. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Teilbilderzeugung und die erforderliche zeitweilige Durchlässigkeit der nicht zur momentanen Teilabbildung herangezogenen Projektionsschichten durch die Verwendung von nematischen oder ferromagnetischen Flüssigkristallen erfolgt.3. The method according to claim 1 and 2, characterized in that partial image generation and the required temporary permeability the projection layers not used for the current partial image through the use of nematic or ferromagnetic Liquid crystals occur.
DE4038552A 1990-12-04 1990-12-04 Three=dimensional imaging system - uses successive partial images provided in projection layers at differing distances from observer Withdrawn DE4038552A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4038552A DE4038552A1 (en) 1990-12-04 1990-12-04 Three=dimensional imaging system - uses successive partial images provided in projection layers at differing distances from observer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4038552A DE4038552A1 (en) 1990-12-04 1990-12-04 Three=dimensional imaging system - uses successive partial images provided in projection layers at differing distances from observer

Publications (1)

Publication Number Publication Date
DE4038552A1 true DE4038552A1 (en) 1992-06-11

Family

ID=6419510

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4038552A Withdrawn DE4038552A1 (en) 1990-12-04 1990-12-04 Three=dimensional imaging system - uses successive partial images provided in projection layers at differing distances from observer

Country Status (1)

Country Link
DE (1) DE4038552A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501155A1 (en) * 1995-01-08 1996-07-18 Norbert Dipl Ing Seebeck Three=dimensional image display on LCD screen
WO1996027992A2 (en) * 1995-03-08 1996-09-12 Philips Electronics N.V. Three-dimensional image display system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891305A (en) * 1973-05-08 1975-06-24 Lester Fader Apparatus for simulating a three-dimensional image by use of plural image producing surfaces
US4294516A (en) * 1978-09-11 1981-10-13 Brooks Philip A Moving picture apparatus
DE3419098A1 (en) * 1984-05-23 1985-11-28 Hartmut Dr. 8520 Erlangen Bartelt Screen for spatial three-dimensional representation of images, graphics and other data
DE3445973A1 (en) * 1984-12-17 1986-06-19 Philips Patentverwaltung Gmbh, 2000 Hamburg ARRANGEMENT FOR PRODUCING AN IMAGE
US4647966A (en) * 1985-11-22 1987-03-03 The United States Of America As Represented By The Secretary Of The Navy Stereoscopic three dimensional large screen liquid crystal display
DE3636059A1 (en) * 1986-10-23 1988-04-28 Standard Elektrik Lorenz Ag IMAGE DISPLAY ARRANGEMENT WITH A PICTURE TUBE AND METHOD FOR PRODUCING THE SAME

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891305A (en) * 1973-05-08 1975-06-24 Lester Fader Apparatus for simulating a three-dimensional image by use of plural image producing surfaces
US4294516A (en) * 1978-09-11 1981-10-13 Brooks Philip A Moving picture apparatus
DE3419098A1 (en) * 1984-05-23 1985-11-28 Hartmut Dr. 8520 Erlangen Bartelt Screen for spatial three-dimensional representation of images, graphics and other data
DE3445973A1 (en) * 1984-12-17 1986-06-19 Philips Patentverwaltung Gmbh, 2000 Hamburg ARRANGEMENT FOR PRODUCING AN IMAGE
US4647966A (en) * 1985-11-22 1987-03-03 The United States Of America As Represented By The Secretary Of The Navy Stereoscopic three dimensional large screen liquid crystal display
DE3636059A1 (en) * 1986-10-23 1988-04-28 Standard Elektrik Lorenz Ag IMAGE DISPLAY ARRANGEMENT WITH A PICTURE TUBE AND METHOD FOR PRODUCING THE SAME

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
54-4155 E-95, March 6, 1979, Vol. 3/No.26 *
61-107218 A. P-502, Sept.30, 1986, Vol.10/No.288 *
62-191824 A. P-664, Feb. 9, 1988, Vol.12/No.43 *
63-274919 A. P-838, March 6, 1989, Vol.13/No.93 *
DALLAS, William J.: Correlelogram stereo display: computer simulations. In: APPLIED OPTICS, Vol.26, No.22, 15.Nov.1987, S.4893-4896 *
MIYSHITA, Tetsuya: FLAT-PANEL DIRECT-VIEW STEREOSCOPIC DISPLAY USING LIQUID- CRYSTAL CELLS. In: Proceedings of the SID, Vol. 28/4, 1987, S.391-395 *
Patents Abstracts of Japan: 2 -90127 A. P-1066, June 25, 1990, Vol.14/No.293 *
UCHIDA, Tasuo *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501155A1 (en) * 1995-01-08 1996-07-18 Norbert Dipl Ing Seebeck Three=dimensional image display on LCD screen
WO1996027992A2 (en) * 1995-03-08 1996-09-12 Philips Electronics N.V. Three-dimensional image display system
WO1996027992A3 (en) * 1995-03-08 1996-11-21 Philips Electronics Nv Three-dimensional image display system

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