DE102011117568A1 - Three-pair addition method for polarization-encoded three-color six-channel stereo image display system, involves using color-addition system for combining three image beam pairs into combined image beam pair along common optical axis - Google Patents
Three-pair addition method for polarization-encoded three-color six-channel stereo image display system, involves using color-addition system for combining three image beam pairs into combined image beam pair along common optical axis Download PDFInfo
- Publication number
- DE102011117568A1 DE102011117568A1 DE102011117568A DE102011117568A DE102011117568A1 DE 102011117568 A1 DE102011117568 A1 DE 102011117568A1 DE 102011117568 A DE102011117568 A DE 102011117568A DE 102011117568 A DE102011117568 A DE 102011117568A DE 102011117568 A1 DE102011117568 A1 DE 102011117568A1
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- Prior art keywords
- polarization
- image
- color
- addition
- beams
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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
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1046—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with transmissive spatial light modulators
-
- 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
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
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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
- G02B30/25—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
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
Gebiet der ErfindungField of the invention
Das Gebiet der Erfindung liegt im Bereich polarisations- und farbselektiver Strahlenteilerschichten. Insbesondere betrifft es parallele polarisationskodierte Stereo-Bildanzeigesysteme, die mit solchen Strahlenteilerschichten sechs Bildstrahlen in eine gemeinsame optische Achse addieren. Während bisherige Systeme ein ”dual-engine”-Anordnung anwenden, verwendet das vorliegende 3-paarige Additions-Verfahren eine ”triple-engine”-Anordnung.The field of the invention lies in the area of polarization- and color-selective beam splitter layers. In particular, it relates to parallel polarization-coded stereo image display systems which add six image beams to a common optical axis with such beam splitter layers. While previous systems use a "dual-engine" arrangement, the present 3-pair addition method uses a "triple-engine" arrangement.
Diskussion des Stands der TechnikDiscussion of the Related Art
Polarisationskodierte 6-Kanal-Stereobildanzeigen, bei denen alle sechs Kanäle in einer optischen Ausgangsachse ausstrahlen, weisen im Stand der Technik zwei Farb-Additions-Systeme und ein Polarisations-Additions-System auf. Da jedes Stereo-Halbbild mit einer eigenen Bilderzeugungs- und Farbadditionsstufe aufgebaut ist, spricht man auch von der Verdopplung der Bildgebereinheit (englisch: ”dual-engine”). Zuerst werden die drei Farben jedes Halbbildes mit je einem der Farb-Additions-Systeme gebündelt und anschließend mit dem Polarisations-Additions-System in eine gemeinsame Achse addiert (
Überblick über die ErfindungOverview of the invention
Das erfindungsgemäße Verfahren verwendet dagegen für jede der drei Farben eine eigene Additions-Einheit (
Der Gewinn dieses neuen 3-paarigen Additionsverfahrens wird bei der Anwendung des Verfahrens in Stereo-Bildanzeigen sichtbar (
Der S-Farbraum besitzt also gegenüber dem P-Farbraum zusätzlich ein längerwelliges Blau. Der P-Farbraum besitzt gegenüber dem S-Farbraum zusätzlich ein kürzerwelliges Grün. Diese verschiedenen Farbräume können durch ein geeignetes Farbkorrekturverfahren angeglichen werden. Ähnliche Korrekturen sind z. B. bei farbkodierten Stereo-Bildanzeigen mit Multipassfiltern beschrieben (dynacolor infitec+;
Die unerwünschten polarisationsabhängigen Farbverschiebungen liegen vor allem in dem großen Einstrahlwinkel von 45 Grad auf die dichroitische Farbteilerschicht begründet. Die unerwünschten Effekte werden mit kleineren Winkeln drastisch reduziert (Kwok et al.,
Durch das 3-paarige Additionsverfahren können polarisationskodierte 3-farbige 6-Kanal-Stereo-Bildanzeigen mit nur einem polarisationsunempfindlichen Farbadditionssystem hergestellt werden, wodurch kompaktere, effizientere und kostengünstigere Lösungen hoher Qualität möglich werden.The 3 -pair addition process allows polarization-coded 3-color 6-channel stereo image displays to be produced with just one polarization insensitive color addition system, resulting in more compact, efficient and cost-effective high-quality solutions.
Kurzbeschreibung der ZeichnungenBrief description of the drawings
BezugszeichenlisteLIST OF REFERENCE NUMBERS
Für die Abbildungen wurde eine gemeinsame Nomenklatur gewählt. Aus Gründen der Anschaulichkeit und leichteren Lesbarkeit wurden einsichtige Buchstabenbezeichner anstelle reiner Bezifferung gewählt.
- FAD1
- erstes Farb-Additions-System
- FAD2
- zweites Farb-Additions-System
- PAD1
- erstes Polarisations-Additions-System
- PAD2
- zweites Polarisations-Additions-System
- PAD3
- drittes Polarisations-Additions-System
- PBX
- Kreuzpolarisator
- TPA
- Drei-Prismen-Anordnung (trichroic prism assembly)
- D1, D2
- dichroitische Schichten in Langpass- und Kurzpass-Ausführung
- T1, T2
- erste und zweite Fläche mit totaler interner Reflexion im TPA
- L1–L6
- sechs Lichtstrahlen
- M1–6
- sechs räumliche Lichtmodulatoren
- R, G, B
- Lichtstrahlen mit spektralen Anteilen in rot, grün und blau
- s, p
- Indizes für S- und P-polarisiertes Licht
- 1/4
- Viertelwellenlängen-Verzögerungs-Plättchen
- FAD1
- first color addition system
- FAD2
- second color addition system
- PAD1
- first polarization addition system
- PAD2
- second polarization addition system
- PAD3
- third polarization addition system
- PBX
- cross-polarizer
- TPA
- Three-prism arrangement (trichroic prism assembly)
- D1, D2
- Dichroic layers in long-pass and short-pass versions
- T1, T2
- first and second surface with total internal reflection in the TPA
- L1-L6
- six beams of light
- M1-6
- six spatial light modulators
- R, G, B
- Light rays with spectral components in red, green and blue
- s, p
- Indices for S- and P-polarized light
- 1.4
- Quarter-wave retardation plate
Detaillierte Beschreibung der ZeichnungenDetailed description of the drawings
Während die Erfindung im vorliegenden Text anhand detaillierter Verkörperungen dargestellt und beschrieben wurde, sollen diese Verkörperungen als Illustration und nicht als Limitierung der Erfindung verstanden werden; Veränderung in Form und Detail können durch den Fachmann abgeleitet werden ohne dabei das Gebiet der Erfindung zu verlassen, das durch die folgenden Ansprüche definiert ist:While the invention has been illustrated and described herein with reference to detailed embodiments, these embodiments are to be taken as illustrative and not as limiting the invention; Changes in form and detail may be derived by those skilled in the art without departing from the scope of the invention, which is defined by the following claims:
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 5028121 [0002] US 5028121 [0002]
- US 20030020809 [0002] US 20030020809 [0002]
- US 20050141076 [0002] US 20050141076 [0002]
- KR 1020100021106 [0002] KR 1020100021106 [0002]
- US 6561652 [0004, 0006] US 6561652 [0004, 0006]
- US 7929208 [0006] US 7929208 [0006]
Zitierte Nicht-PatentliteraturCited non-patent literature
- www.barco.com [0005] www.barco.com [0005]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011117568A DE102011117568A1 (en) | 2011-07-08 | 2011-10-17 | Three-pair addition method for polarization-encoded three-color six-channel stereo image display system, involves using color-addition system for combining three image beam pairs into combined image beam pair along common optical axis |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011106992.9 | 2011-07-08 | ||
DE102011106992 | 2011-07-08 | ||
DE102011117568A DE102011117568A1 (en) | 2011-07-08 | 2011-10-17 | Three-pair addition method for polarization-encoded three-color six-channel stereo image display system, involves using color-addition system for combining three image beam pairs into combined image beam pair along common optical axis |
Publications (1)
Publication Number | Publication Date |
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DE102011117568A1 true DE102011117568A1 (en) | 2013-01-10 |
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DE102011117568A Withdrawn DE102011117568A1 (en) | 2011-07-08 | 2011-10-17 | Three-pair addition method for polarization-encoded three-color six-channel stereo image display system, involves using color-addition system for combining three image beam pairs into combined image beam pair along common optical axis |
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DE (1) | DE102011117568A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5028121A (en) | 1987-06-19 | 1991-07-02 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Projection device |
US20030020809A1 (en) | 2000-03-15 | 2003-01-30 | Gibbon Michael A | Methods and apparatuses for superimposition of images |
US6561652B1 (en) | 1998-12-22 | 2003-05-13 | Vanntelligent (Bvi) Limited | Optical assembly for reflective light valves |
US20050141076A1 (en) | 2003-12-29 | 2005-06-30 | Bausenwein Bernhard R. | 2-Channel display system comprising micro electro mechanical systems |
KR20100021106A (en) | 2008-08-14 | 2010-02-24 | 진 호 정 | The 3d projection optical system which has a compact structure |
US7929208B2 (en) | 2004-02-04 | 2011-04-19 | Max Mayer | Complex polarizer system for reciprocal polarization (cross-polarizer) |
-
2011
- 2011-10-17 DE DE102011117568A patent/DE102011117568A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5028121A (en) | 1987-06-19 | 1991-07-02 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Projection device |
US6561652B1 (en) | 1998-12-22 | 2003-05-13 | Vanntelligent (Bvi) Limited | Optical assembly for reflective light valves |
US20030020809A1 (en) | 2000-03-15 | 2003-01-30 | Gibbon Michael A | Methods and apparatuses for superimposition of images |
US20050141076A1 (en) | 2003-12-29 | 2005-06-30 | Bausenwein Bernhard R. | 2-Channel display system comprising micro electro mechanical systems |
US7929208B2 (en) | 2004-02-04 | 2011-04-19 | Max Mayer | Complex polarizer system for reciprocal polarization (cross-polarizer) |
KR20100021106A (en) | 2008-08-14 | 2010-02-24 | 진 호 정 | The 3d projection optical system which has a compact structure |
Non-Patent Citations (1)
Title |
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www.barco.com |
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