DE102009048331A1 - Method for projection of three-dimensional image contents in highly dissolving TV set, involves providing surface with mirrors whose size is smaller than pixels reflected by mirrors, and directing power of source of light to eyes of viewer - Google Patents
Method for projection of three-dimensional image contents in highly dissolving TV set, involves providing surface with mirrors whose size is smaller than pixels reflected by mirrors, and directing power of source of light to eyes of viewer Download PDFInfo
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- DE102009048331A1 DE102009048331A1 DE102009048331A DE102009048331A DE102009048331A1 DE 102009048331 A1 DE102009048331 A1 DE 102009048331A1 DE 102009048331 A DE102009048331 A DE 102009048331A DE 102009048331 A DE102009048331 A DE 102009048331A DE 102009048331 A1 DE102009048331 A1 DE 102009048331A1
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- projection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
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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
- G02B30/26—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 autostereoscopic type
- G02B30/33—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 autostereoscopic type involving directional light or back-light sources
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
ProblembeschreibungProblem Description
Die Qualität der elektronischen Bildwiedergabe hat sich in den letzten Jahren deutlich verbessert. Im Heimbereich sind hoch auflösende Fernsehgeräte inzwischen stand der Technik. Die immer weiter verbesserte Bildauflösung führt dazu, dass der Anwender das schärfere Bild auf einer immer größeren Fläche darstellen möchte.The quality of electronic image reproduction has improved significantly in recent years. At home, high-definition televisions have become state of the art. The ever-improving image resolution means that the user wants to display the sharper image on an ever-larger area.
Diese Fläche muss eine ausreichende Helligkeit erzeugen können, um eine Bilddarstellung mit gutem Kontrastumfang zwischen hellen und dunklen Bildstellen zu bereitzustellen.This area must be able to generate sufficient brightness to provide a good contrast image between bright and dark areas.
Mit der Kantenlänge des Bildschirmes oder der Projektionsfläche nimmt der Energiebedarf im Quadrat zu. Moderne Großfernseher, aber auch gute Projektoren, haben inzwischen selbst im Heimbereich die Kilowattgrenze im Energieverbrauch überschritten.With the edge length of the screen or the projection surface, the energy requirement increases in the square. Modern large televisions, but also good projectors, have now exceeded the kilowatt limit in energy consumption even in the home.
Moderne Entwicklungen in effizientere Lichterzeugung wird das Problem nur lösen, wenn die Technologie nicht in immer größeren Bildflächen angewendet wird. Die massenhafte Verbreitung der höher auflösenden Übertragungstechnologien wird deshalb zu massiven Umweltproblemen führen.Modern developments in more efficient light generation will solve the problem only if the technology is not used in ever larger image areas. The proliferation of higher-resolution transmission technologies will therefore lead to massive environmental problems.
ProblemlösungTroubleshooting
Das Problem kann erfindungsgemäß dadurch gelöst werden, dass nicht ein Bildschirm oder eine Projektionsfläche beleuchtet wird, sondern nur die Augen des Zuschauers.The problem can be solved according to the invention in that not a screen or a projection screen is illuminated, but only the eyes of the viewer.
Dazu lenkt eine Projektionsfläche aus einzeln steuerbaren Mikrospiegeln das gesamte Projektionslicht direkt zum Zuschauer. Das ist in der Zeichnung 1 im Prinzip dargestellt.For this purpose, a projection surface of individually controllable micromirrors directs the entire projection light directly to the viewer. This is shown in the
Die Projektionseinheit (
Der übrige Wiedergaberaum bleibt dabei dunkel, so dass wenige Watt ausreichen um beim Betrachter den Eindruck eines sehr großen Projektionsbildes zu erzeugen.The rest of the playback room remains dark, so that a few watts are sufficient to give the viewer the impression of a very large projection image.
Die Mikrospiegel müssen dabei sehr genau ausgerichtet werden. Dazu wird eine Setup-Prozedur bei der Installation der Anlage notwendig sein. Die dabei abgespeicherten Werte müssen aber nur leicht verändert werden, wenn sich der Zuschauer aus dem Lichtkegel bewegt. Die notwendige Nachführung kann zum Beispiel über Kameras (
Praktische AusführungPractical execution
In der Praxis wird sich das Problem ergeben, dass mehr als ein Zuschauer den Bildinhalt sehen will. Außerhalb des Lichtkegels wird die Bildfläche aber nur als grau schimmernde Fläche zu sehen sein.In practice, the problem will arise that more than one viewer wants to see the image content. Outside the cone of light, however, the picture surface will only be visible as a shimmering gray area.
Dieses Problem lässt sich lösen, wenn die Spiegelfläche für einen Bildpunkt in mehrere unabhängig steuerbare Flächen unterteilt wird. Die Lichtstrahlen lassen sich dann auf mehrere Zuschauer ausrichten.This problem can be solved by dividing the mirror surface for a pixel into several independently controllable surfaces. The light beams can then be aligned to several viewers.
Dabei ergeben sich weitere Möglichkeiten. In einem synchronisierten Multiplexbetrieb zwischen Projektor und Spiegeln könnten verschiedene Zuschauer mit unterschiedlichem Bildinhalt versorgt werden.There are further possibilities. In a synchronized multiplexing between the projector and mirrors different viewers could be supplied with different image content.
Wenn es gelingt die Spiegel ausreichend genau auf ein einzelnes Auge auszurichten, wäre so auch eine 3D-Wiedergabe von Bildinhalten möglich.If it is possible to align the mirrors sufficiently accurately to a single eye, a 3D rendering of image content would also be possible.
Für die Umsetzung des Prinzips bieten sich mehrere Möglichkeiten an. Statt der Zeilenweisen Laserprojektion könnten an der Position des Projektors auch drei räumlich getrennte, kontinuierlich in den Grundfarben leuchtende Lichtquellen montiert sein. Dann würde ihr Licht von drei Spiegeln auf den Betrachter gelenkt. Die Helligkeit des Bildpunktes kann dann in den drei Farben durch eine variable Expositionszeit, nach der der jeweilige Spiegel aus der korrekten Richtung geklappt wird, gesteuert werden. Alternativ lassen sich die einzelnen Farben des Bildpunktes auch durch eine Vorgeschaltete Abschattung durch Flüssigkristalle steuern.For the implementation of the principle, there are several possibilities. Instead of the line-wise laser projection could be mounted at the position of the projector and three spatially separated, continuously shining in the primary colors light sources. Then her light would be directed by three mirrors at the viewer. The brightness of the pixel can then be controlled in the three colors by a variable exposure time, after which the respective mirror is folded from the correct direction. Alternatively, the individual colors of the pixel can also be controlled by an upstream shading by liquid crystals.
Weitere Ausführungen des Prinzips sind möglich, die vorliegende Anmeldung dient bisher nur zur Sicherung der Priorität.Further embodiments of the principle are possible, the present application serves only to secure the priority.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009048331A DE102009048331A1 (en) | 2009-10-06 | 2009-10-06 | Method for projection of three-dimensional image contents in highly dissolving TV set, involves providing surface with mirrors whose size is smaller than pixels reflected by mirrors, and directing power of source of light to eyes of viewer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009048331A DE102009048331A1 (en) | 2009-10-06 | 2009-10-06 | Method for projection of three-dimensional image contents in highly dissolving TV set, involves providing surface with mirrors whose size is smaller than pixels reflected by mirrors, and directing power of source of light to eyes of viewer |
Publications (1)
Publication Number | Publication Date |
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DE102009048331A1 true DE102009048331A1 (en) | 2011-04-07 |
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DE102009048331A Withdrawn DE102009048331A1 (en) | 2009-10-06 | 2009-10-06 | Method for projection of three-dimensional image contents in highly dissolving TV set, involves providing surface with mirrors whose size is smaller than pixels reflected by mirrors, and directing power of source of light to eyes of viewer |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106896512A (en) * | 2015-12-21 | 2017-06-27 | 苏州工业园区洛加大先进技术研究院 | A kind of bore hole 3D display device |
CN113568267A (en) * | 2020-04-28 | 2021-10-29 | 怡利电子工业股份有限公司 | Projection device for projecting stereo image |
-
2009
- 2009-10-06 DE DE102009048331A patent/DE102009048331A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106896512A (en) * | 2015-12-21 | 2017-06-27 | 苏州工业园区洛加大先进技术研究院 | A kind of bore hole 3D display device |
CN113568267A (en) * | 2020-04-28 | 2021-10-29 | 怡利电子工业股份有限公司 | Projection device for projecting stereo image |
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Legal Events
Date | Code | Title | Description |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120501 |