DE19643000A1 - Electro=optical viewing spectacles e.g. for three=dimensional images - Google Patents
Electro=optical viewing spectacles e.g. for three=dimensional imagesInfo
- Publication number
- DE19643000A1 DE19643000A1 DE19643000A DE19643000A DE19643000A1 DE 19643000 A1 DE19643000 A1 DE 19643000A1 DE 19643000 A DE19643000 A DE 19643000A DE 19643000 A DE19643000 A DE 19643000A DE 19643000 A1 DE19643000 A1 DE 19643000A1
- Authority
- DE
- Germany
- Prior art keywords
- glasses
- light
- image
- images
- spectacles
- 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- Withdrawn
Links
Classifications
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- 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]
- H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
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- 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
- G02B30/20—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
- G02B30/25—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 using polarisation techniques
-
- 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
- H04N13/398—Synchronisation thereof; Control thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/286—Image signal generators having separate monoscopic and stereoscopic modes
- H04N13/289—Switching between monoscopic and stereoscopic modes
-
- 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
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
-
- 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
-
- 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
- H04N13/366—Image reproducers using viewer tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/008—Aspects relating to glasses for viewing stereoscopic images
Abstract
Description
Die im Folgenden beschriebene Erfindung einer verbesserten 3D-Brille ist dem Forschungsgebiet der Multimedia-Technik zuzuordnen. Hier ergeben sich Beiträge aus dem Gebiet der Elektrooptik, der Elektronik und der Informatik. Anwendungsgebiete sind insbesondere Unterhaltungselektronik, medizinische Diagnose und Therapie und 3D-Visualisierung von wissenschaftlichen Datenbeständen.The invention of improved 3D glasses described below is this Assign research area to multimedia technology. There are contributions here from the field of electro-optics, electronics and computer science. Areas of application are in particular consumer electronics, medical Diagnosis and therapy and 3D visualization of scientific Databases.
Zur Erzeugung eines stereoskopischen Bildeindruckes müssen den beiden Augen unterschiedliche Bilder zugeführt werden, die der perspektivischen Anordnung der zu visualisierenden Gegenstände im Raum Rechnung tragen. Zur Bildtrennung werden meist Spezialbrillen verwendet oder es wird für jedes Auge ein eigener Bildschirm vorgesehen. Der dreidimensionale Eindruck wird verstärkt, wenn eine die Kopfbewegung berücksichtigende Bildnachführung gegeben ist ("Tracking").To create a stereoscopic image impression, both eyes different images are supplied, the perspective arrangement of the take into account objects to be visualized in the room. For image separation special glasses are usually used or there is a separate one for each eye Screen provided. The three-dimensional impression is enhanced when one the image tracking taking into account the head movement is given ("tracking").
Sogenannte Datenhelme verwenden heute einen getrennten Bildschirm für jedes Auge. Die Bewegung des Kopfes wird durch einen Sensor erkannt und durch den Rechner zur Modifikation des Bildes verwendet. Kurze Latenzzeiten sind wichtig für das Nachführungssystem, dann ist jedoch ein sehr intensiver 3D-Eindruck vermittelbar. Polarisatoren werden keine verwendet. Datenhelme sind jedoch im Vergleich zu Brillen schwer, besonders dann wenn eine hohe Pixelauflösung gewünscht wird und Kathodenstrahlröhren zur Bildgebung verwendet werden.So-called data helmets now use a separate screen for everyone Eye. The movement of the head is recognized by a sensor and by the Computer used to modify the image. Short latencies are important for the tracking system, but then there is a very intense 3D impression communicable. Polarizers are not used. Data helmets are however in the Difficult compared to glasses, especially when high pixel resolution is desired and cathode ray tubes are used for imaging.
Für größere Zuschauermengen werden heute 3D-Projektionssysteme mit Bildtrennung über Polarisationsfilter verwendet. Der Zuschauer erhält eine Spezialbrille mit unterschiedlicher Polarisationsrichtung für die beiden Brillengläser. Der Projektor verwendet ebenfalls Polarisationsfilter. Linkes Bild und rechtes Bild werden gleichzeitig, aber mit unterschiedlicher Polarisierung auf die Leinwand geworfen. Eine Bildnachführung erfolgt nicht. Die Brillen kosten rund 5 Dollar.For larger crowds, 3D projection systems are used today Image separation via polarization filters used. The viewer receives one Special glasses with different polarization directions for the two Eyeglass lenses. The projector also uses polarization filters. Left picture and the right picture appear at the same time, but with different polarization thrown the canvas. There is no image tracking. The glasses cost around $ 5.
Für einen kleineren Zuschauerkreis (medizinische Bildgebung . . . ) werden vor die Bildschirme große umschaltbare Polarisationsfilter montiert. Im Takt des Wechsels zwischen linkem und rechtem Bild erfolgt eine Drehung der Polarisierung des Filters um 90 Grad. Als Lichtventil wird eine elektrooptische Flüssigkristallschicht zwischen zwei Polarisatoren verwendet, ähnlich der in Computerdisplays und in Uhren verwendeten Technik. Entsprechend erhält der Betrachter auch eine Spezialbrille mit unterschiedlich polarisierenden Gläsern. Auch hier ist die Brille passiv und ohne elektronische Steuerung.For a smaller audience (medical imaging...) Are in front of the Large switchable polarization filters mounted on screens. In time with the Alternating between the left and right image, the Polarization of the filter by 90 degrees. An electro-optical Liquid crystal layer used between two polarizers, similar to that in Computer displays and technology used in watches. Accordingly, the Viewers also see special glasses with different polarizing lenses. Here, too, the glasses are passive and without electronic control.
Als wesentlicher Nachteil ist bei existierenden Brillensystemen der Lichtverlust durch die Polarisatoren zu nennen. Holgraphische Displays für Bewegtbilder sind zur Zeit noch nicht realisierbar.The main disadvantage of existing eyewear systems is the loss of light by calling the polarizers. Holgraphic displays for moving pictures are not yet realizable.
Unsere Erfindung löst einerseits das Problem der höheren Lichtverluste von po larisierenden Lichtventilen und ist überdies kostengünstiger herzustellen. Insbesondere großflächige Lichtventile sind im Vergleich zu einer elektrooptischen Brille sehr teuer. Die Brille beim Betrachter ist ebenfalls kostengünstig herzustellen, da auch dort die Polarisatoren entfallen.On the one hand, our invention solves the problem of higher light losses from po larizing light valves and is also cheaper to manufacture. Large-area light valves in particular are compared to an electro-optical one Glasses very expensive. The glasses for the viewer are also inexpensive to manufacture, since the polarizers are also omitted there.
Wir verwenden die LCD-Schicht nicht für eine elektronisch gesteuerte Drehung der Polarisationsebene, sondern um eine Streuung des einfallenden Lichtes zu bewirken. Hier bietet sich der sogenannte dynamische Streueffekt ("dynamic scattering") in nematischen Flüssigkristallschichten an oder die Streuung in Polymer-Dispergierten Flüssigkristallzellen (PDLC). Eine solche Streuzelle ist le ichter herzustellen als eine handelsübliche mit Polarisatoren.We do not use the LCD layer for electronically controlled rotation the plane of polarization, but to scatter the incident light cause. The so-called dynamic scattering effect ("dynamic scattering ") in nematic liquid crystal layers or the scattering in Polymer-dispersed liquid crystal cells (PDLC). Such a scattering cell is le more difficult to produce than a conventional one with polarizers.
Es wird empfohlen das Betrachtungsgerät nach Anspruch 1 als elektronisch gesteuerte Brille auszuführen. Als Lichtventil kann eine LCD-Zelle mit dynamischer Streuung oder eine PDLC-Zelle verwendet werden. Die Elektronik ist entweder in der Brille eingebaut oder in einem separaten Gehäuse. Dies gilt auch für einen eventuellen Sensor, der die Stereobildsynchronisierung steuert. It is recommended that the viewing device according to claim 1 be electronic to run controlled glasses. An LCD cell can be used as a light valve dynamic scattering or a PDLC cell can be used. The electronics is either built into the glasses or in a separate housing. this is also valid for a possible sensor that controls the stereo image synchronization.
Unter Umständen möchte der Betrachter auf seine Visus-Korrektur nicht verzichten und seine Lesebrille aufbehalten. Dann sollte mit einem Vorsatz gearbeitet werden, der zum Beispiel als PDLC-Folie auf die Brille geklebt werden kann.The viewer may not want to do without his vision correction and keep his reading glasses on. Then you should work with a header which can be stuck on the glasses as a PDLC film, for example.
Die Brille könnte durch einen Reflektor (ähnlich Fahrradreflektor) ergänzt werden, der durch eine gesteuerte Flüssigkristallschicht abgedeckt ist. Ein Steuerstrahl trifft dann auf die Brille und wird zurückgeworfen, dies jedoch nur während der einen Halbbildperiode (z. B. links). Auf diese Weise kann die Brille die Bildwechselfrequenz vorgeben. Die Bildwechselfrequenz kann unter Umständen wesentlich unter der Bildwiederholfrequenz liegen. Dadurch wird Rechenzeit gespart.The glasses could be supplemented by a reflector (similar to a bicycle reflector), which is covered by a controlled liquid crystal layer. A steering beam hits then on the glasses and is thrown back, but only during one Field period (e.g. left). In this way, the glasses can Specify frame rate. The frame rate may change are significantly below the refresh rate. This makes computing time saved.
"Programmierbare elektronische Okklusionsbrille"; Schulthess, P.; Lang, G. K.; Offenlegungsschrift P 43 27 051.4, Deutsches Patentamt 1993."Programmable electronic occlusion glasses"; Schulthess, P .; Lang, G. K .; Publication P 43 27 051.4, German Patent Office 1993.
"The Influence of LCD Shutter Glasses on Spatial Perception in Stereoscopic Visualization"; von Pichler, C., Radermacher, K., Boeckmann, W., Rau, G., Jakse, G. and Schumpelick, V. (1996). In Proceedings of S.J. Weghorst, J.B. Sieburg and K.S. Morgan (Eds.), Medicine Meets Virtual Reality: Health Care in the Information Age (pp. 523-531). Washington, DC: IOS Press."The Influence of LCD Shutter Glasses on Spatial Perception in Stereoscopic Visualization "; by Pichler, C., Radermacher, K., Boeckmann, W., Rau, G., Jakse, G. and Schumpelick, V. (1996). In Proceedings of S.J. Weghorst, J.B. Sieburg and K.S. Morgan (Eds.), Medicine Meets Virtual Reality: Health Care in the Information Age (pp. 523-531). Washington, DC: IOS Press.
"Virtual Reality Update(VRU) 3(2) SCHOLARLY LITERATURE";
Adachi, Y., Kumano, T. and Ogino, K. (1995).
http://www.hitl.washington.edu/projects/knowledge_baseKru/scholaly.htm"Virtual Reality Update (VRU) 3 (2) SCHOLARLY LITERATURE"; Adachi, Y., Kumano, T. and Ogino, K. (1995).
http://www.hitl.washington.edu/projects/knowledge_baseKru/scholaly.htm
"Stereoscopic imaging technology": A Review of Patents and the Literature";
Michael Starks, 3DTV Corporation San Rafael, California Editor;
http://ÿvr.uccs.edu/starksa.htm - size 92K - 17 Nov 95"Stereoscopic imaging technology": A Review of Patents and the Literature "; Michael Starks, 3 DTV Corporation San Rafael, California Editor;
http: //ÿvr.uccs.edu/starksa.htm - size 92K - 17 Nov 95
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19643000A DE19643000A1 (en) | 1996-10-18 | 1996-10-18 | Electro=optical viewing spectacles e.g. for three=dimensional images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19643000A DE19643000A1 (en) | 1996-10-18 | 1996-10-18 | Electro=optical viewing spectacles e.g. for three=dimensional images |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19643000A1 true DE19643000A1 (en) | 1997-05-28 |
Family
ID=7809087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19643000A Withdrawn DE19643000A1 (en) | 1996-10-18 | 1996-10-18 | Electro=optical viewing spectacles e.g. for three=dimensional images |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19643000A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012079259A1 (en) * | 2010-12-17 | 2012-06-21 | 海尔集团公司 | Stereoscopic spectacles |
-
1996
- 1996-10-18 DE DE19643000A patent/DE19643000A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012079259A1 (en) * | 2010-12-17 | 2012-06-21 | 海尔集团公司 | Stereoscopic spectacles |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
8122 | Nonbinding interest in granting licences declared | ||
8139 | Disposal/non-payment of the annual fee |