EP1880554A1 - Dispositif pour la combinaison de lumiere de longueur d'onde differente - Google Patents

Dispositif pour la combinaison de lumiere de longueur d'onde differente

Info

Publication number
EP1880554A1
EP1880554A1 EP06742824A EP06742824A EP1880554A1 EP 1880554 A1 EP1880554 A1 EP 1880554A1 EP 06742824 A EP06742824 A EP 06742824A EP 06742824 A EP06742824 A EP 06742824A EP 1880554 A1 EP1880554 A1 EP 1880554A1
Authority
EP
European Patent Office
Prior art keywords
light
wavelength interval
interference filter
light source
beam path
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
EP06742824A
Other languages
German (de)
English (en)
Inventor
Othmar Zueger
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.)
Oerlikon Surface Solutions AG Pfaeffikon
Original Assignee
OC Oerlikon Balzers AG
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 OC Oerlikon Balzers AG filed Critical OC Oerlikon Balzers AG
Publication of EP1880554A1 publication Critical patent/EP1880554A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • 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
    • 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
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems

Definitions

  • the present invention relates to an apparatus for combining light of different wavelengths.
  • the invention relates in particular to a lighting unit which is able to combine light from red, green and blue narrow-band light sources into white light.
  • the invention also relates to a lighting unit which is able to split white light into red, green and blue partial beams.
  • the red color channel is assigned light with wavelengths within the wavelength interval of 600 nm to 780 nm.
  • the green color channel is associated with light with wavelengths within the wavelength interval of 500nm to 600nm.
  • the blue color channel is associated with light with wavelengths within the wavelength interval of 420nm to 500nm.
  • Imaging element modulates light to pass on image information.
  • a widespread class of imaging elements subjects the incoming light to a locally resolved polarization modulation. This polarization modulation is then transferred into an intensity modulation by means of polarization-selective optical elements.
  • This type of imaging elements must be exposed to polarized light.
  • this description focuses on lighting devices for another class of imaging elements that can be exposed to unpolarized light or only partially polarized light. The required lighting devices should be able to prepare unpolarized light for the application. If broadband, white light sources are used with 3P projectors, the white light must first be split into the three colors red, green and blue. One way to do this is to use dielectric edge filters.
  • An edge filter has the task to reflect light in a first wavelength range to almost 100% while it should transmit nearly 100% of the light in a second adjacent wavelength range.
  • the area in which the wavelength ranges adjoin is called the filter edge. If a first edge filter with a filter edge at 500 nm is placed in the beam path of a white light source, the blue light associated with the blue color channel is first split off from the yellow light. In this case, yellow light is additively composed of green and red light. If an edge filter with an edge at 600 nm is placed in the beam path of the yellow light, green light is split off from red light.
  • an edge filter which transmits the wavelength range having the smaller wavelengths while reflecting larger wavelengths is referred to as a low-pass filter.
  • An edge filter which reflects the wavelength range with the smaller wavelengths while transmitting larger wavelengths is called a high pass.
  • narrow-band light sources such as the light of LEDs used in CS projectors
  • the task to combine the light paths of a red, green and blue narrow-band light source and to direct the light beams on the one imaging element.
  • edge filters can be used: a first, for example, which combines the light path of the red and the green light, and a second, which combines the light path of the blue light with the other two light paths.
  • edge filters are realized by means of dielectric interference layer systems on otherwise transparent glass substrates.
  • interference layer systems have characteristics that are detrimental to the edge filters described herein with respect to polarization dependence.
  • the edge filters are arranged at an angle inclined to the optical axis.
  • the reflection and transmission behavior of the interference filter becomes polarization-dependent.
  • both the position of the edge and the reflection and transmission in the wavelength ranges which adjoin the edge depend on the polarization.
  • this results in a loss of light and, on the other hand, can have an unfavorable effect on the respective color coordinates.
  • the optical path that the blue component of the light has to travel is called the blue channel.
  • the proportion of blue light emitted by the light source arriving at the imaging element is referred to as blue channel transmission. Accordingly, we speak of a red channel transmission and a green channel transmission. Of course, misalignments of light components lead to a reduction in channel transmission.
  • the optical elements and filters used for the illumination must therefore have a certain angular acceptance, which is usually expressed by the F-number.
  • the F number is inversely proportional to the numerical aperture (NA) given by the refractive index product of the
  • the object of the invention to provide a device which overcomes or at least reduces the disadvantages of the prior art.
  • the device according to the invention is intended to represent a cost-effective solution for a lighting system with unpolarized light for projectors compared to the prior art.
  • the solution of the problem is, in contrast to the prior art, to treat the green channel lying between the two adjacent wavelength intervals separately, while the red and blue light channels are still combined (in the case of the white light source) or already (in the case of the narrow-band light sources).
  • a very simplified edge filter can be used whose edge within the green wavelength interval can be almost any polarization dependent and / or angle dependent, without the separation or Combining red-blue significantly affect. It is therefore even questionable whether this should be spoken by an edge filter in the sense of the definition given above. Taking this into account, it is generally referred to in this description of an RB splitter. Especially from an RB splitter low pass, when blue light is transmitted and red light is reflected. Correspondingly, from a RB splitter high pass, when blue light is reflected and red light is transmitted.
  • Such a filter can be realized, for example, by applying a low-pass filter with an edge layer at approximately 600 nm to one side of a substrate, while a high-pass filter with an edge layer is applied at approximately 500 nm on the other side. In this way blue light is reflected on the side with the high-pass filter and red light on the side is reflected with the low-pass filter. Only green light is transmitted through both sides of the substrate. This allows efficient combination and / or splitting off of the green light with light components comprising both red and blue light. It is advantageous, as already described above, that the additional filter can be an RB splitter. In the green wavelength range, which forms the transition between the red wavelength range and the blue wavelength range, this does not have to fulfill specifications and therefore effects such as polarization shift or angle shift can play no or at least a minor role.
  • the bandpass filter is not realized on two sides, but newly applied to one side of the substrate. That On one side of the substrate, the bandpass filter is realized by means of a layer system. On the other hand, if deemed necessary, only a few layers antireflective coating is provided. Such single-sided bandpass filters are commonly considered difficult to manufacture. New, essentially statistical design methods considerably simplify this task. Surprisingly, it has been found that such a one-sided design with only 60% of the total thickness of a comparable two-sided design can be produced with significantly less coating effort and therefore much less costly.
  • a method for splitting substantially unpolarized white light into three substantially unpolarized fractions having at least the following steps:
  • the substantially unpolarized white light into a first portion and a second portion, wherein the first portion is substantially unpolarized light of a first wavelength interval and the second portion comprises substantially unpolarized light of a second and a third wavelength interval and the first wavelength interval between the second and the third wavelength interval - splitting the second portion into a third portion of substantially unpolarized light of the second wavelength interval and a fourth Proportion of substantially unpolarized light of the third wavelength interval.
  • the invention also provides a method for combining the beam paths of a first, substantially unpolarized light beam of a first wavelength interval of a first light source, a second, substantially unpolarized light beam of a second wavelength interval of a second light source and a third, substantially unpolarized light beam of a third wavelength interval of a third A light source, wherein the first wavelength interval is between the second and the third wavelength interval and the method comprises at least the following steps:
  • a lighting unit comprising a first light source for emitting a first, substantially unpolarized light beam of a first wavelength interval, a second light source for emitting a second, substantially unpolarized
  • a third light source for emitting a third, substantially unpolarized
  • Light beam of a third wavelength interval the first wavelength interval comprising wavelengths lying between the second and the third wavelength interval; and the second light source and the third light source are arranged so that the Cross beam paths of the emitted light; and in the area of the intersection a first interference filter is provided for combining the beam paths to a first combined beam path; and the first light source is arranged such that the beam path of the first light source crosses the combined beam path; and in the region of the intersection of the beam path of the first light source and the combined beam path, a second interference filter is provided for combining the first beam path with the combined beam path.
  • Tab 2 Layer thickness distribution of the single-sided bandpass filter and the antireflection coating of the back of the bandpass filter in nanometers.
  • Fig. 2a Lighting unit according to the invention with white light source and two-sided bandpass filter and RB splitter
  • Fig. 2b Illumination unit according to the invention based on LEDs with two-sided bandpass filter and RB splitter
  • Fig. 3a Transmission spectrum of a green bandpass filter for light, incident at 45 ° both for parallel application and for loading with F number 1.0
  • Fig. 3b Transmission spectrum of a RB splitter High pass for light, incident at 45 ° both for parallel application and for loading with F number 1.0
  • Fig. 3c assumed weighting of the angle of incidence Fig. 4a blue channel transmission as a function of wavelength (solid), and spectral distribution of a blue LED
  • Fig. 4b Green channel transmission as a function of wavelength (solid), and spectral distribution of a green LED
  • Fig. 4c Rotkanalransmission as a function of wavelength (solid), and spectral distribution of a red LED
  • Fig. 7 Schematic structure of a projector with inventive LED lighting unit.
  • FIG. 1a schematically illustrates the situation according to the prior art in the case of a white light source.
  • a white light source In the illumination arrangement 1 of Figure Ia is shown a white
  • Light source that emits white light W. Downstream in the light path is placed below 45 ° is a high pass filter 5 with filter edge at about 500nm for the reflection of blue light B and
  • Transmission of green light G and red light R is further downstream placed in the light path at 45 ° orientation is a low-pass filter 7 with edge position at about 600nm, the green light G transmits and red light R reflected.
  • FIG. 1b schematically shows a lighting arrangement 10 according to the prior art with regard to narrow-band light sources to be combined. Shown is the blue LED 11, the red LED 13 and the green LED 15 whose light is combined by means of low-pass filter 7 and high-pass filter 5.
  • FIG. 2 a shows a lighting arrangement 20 according to the invention for 3P projectors with a white light source 3.
  • a green band-pass filter 21 is placed at 45 °, on one side of the substrate, a high-pass filter 23 with edge layer is applied at 500nm and on the other side a low-pass filter 25 is applied with edge layer at 600nm.
  • the band-pass filter is arranged such that the high-pass filter 23 faces the light source. In this way, the blue light, which is usually most unintentionally absorbed by thin film materials, must transmit minimally through thin film layers. Absorption effects are thereby minimized.
  • This combination of high-pass filter 23 and low-pass filter 25 produces a green band-pass filter 21 which reflects blue and red light and transmits green light. Downstream, following the path of the red and blue lights, an RB splitter high pass is arranged, which reflects substantially blue light and transmits red light.
  • an RB splitter lowpass would be possible, but for the reasons mentioned above in terms of absorption of the blue light, it is again advantageous to reflect the blue light.
  • An antireflection coating may be provided on the back side of the substrate of the RB splitter.
  • All filters include thin film alternating layer systems of a high refractive index and a low refractive layer material.
  • Nb 2 O 5 for the high refractive index layer H and SiO 2 for the low refractive index layer L were used as coating materials.
  • Table 1 gives the layer thickness distribution of the respective filters in nanometers, starting from the substrate. Theylon Anlagendiche the bandpass filter 21 adds up to 4360nm.
  • FIG. 3a shows the transmission characteristic for unpolarized light of the green
  • FIG. 3b shows the transmission characteristic for unpolarized light of the RB splitter high-pass for angle of incidence 45 ° (solid line) and F number 1.0 (dotted line). It becomes clear that despite the very small F number, the losses are very small.
  • the RB splitter is chosen to have a flat "edge" even at a mere 45 ° angle of incidence, in the present case the slope is dT / d ⁇ ⁇ 2% / nm where T is the transmission in percent and ⁇ is the wavelength of the light in nanometers.
  • FIG. 3c shows the angle weighting of the different emission directions of the light source on which the transmission characteristic is based.
  • FIGS. 4a-c additionally show, with the dotted lines, the spectral distribution of the LED associated with the color channel. To find out how much of the light is actually combined into white light, these spectral distributions must be multiplied by the channel transmission curves. This results in the figure 5a-c.
  • the dotted line indicates the respective emission spectrum of the LED and the solid line indicates the associated color channel transmission. It can be seen from the figures that almost all of the light energy emitted by the LEDs, which is fed into the channels, is transmitted through the respective color channel.
  • the green bandpass filter is realized by means of a one-sided design.
  • Table 2 shows the layer structure of the single-sided bandpass filter.
  • an antireflection coating is provided on the other side of the substrate. Noteworthy in this embodiment is, among other things, that the total layer thickness, including the layers for the antireflection coating summed to only 2568nm, making up only 60% of the layer thickness of the two-sided bandpass system.
  • FIG. 6 compares the transmission curves for the one-sided and the two-sided design for the F number 1.0.
  • the solid line refers to the one-sided design
  • the dotted line refers to the two-sided design. In the areas in which the LEDs considered here have their emission maximum, these filters are equivalent within 2-5%. In the green channel, the one-sided design cuts even better.
  • FIG. 7 outlines a projector 100 based on 3 LEDs and comprising a lighting unit 103 according to the invention.
  • Component of the lighting unit 103 are at least one red LED 105, at least one blue LED 107 and at least one green LED 109.
  • green LED 109 and blue LED 107 are oriented substantially parallel, while the red LED 105 is oriented perpendicular thereto.
  • Another component is a RB splitter high pass 111. Contrary to what is shown in FIG. 7 is shown, it is of course possible, the blue LED 107 and corresponding to the RB splitter high-pass 111 rotated arbitrarily about the axis XX 'to order. This may be advantageous for reasons of space in some cases, for example.
  • the bandpass filter 113 comprises a substrate side facing the green LED, which has an antireflection coating 115 and a substrate side which is remote from the green LED and has a bandpass filter layer system 117. Due to this arrangement, the blue light is reflected directly at the surface without having to propagate through the substrate. Since typically shortwave light is absorbed in the substrate, the absorption by such an arrangement can be minimized. A further source of absorption losses are the layers themselves required for constructing the layer system 117.
  • the optical paths of the radiation of the 3 LED are identical. Downstream, in the now common optical paths, a lens 121 is arranged, which focuses the light into the integrator 123.
  • color sequencing means such as a color wheel would be provided in front of the input of the integrator. However, if the LEDs can be turned on and off quickly enough, no color wheel is needed.
  • a homogeneous light field At the exit end of the integrator 123 is a homogeneous light field, which is projected by the lens 125 onto a DMD chip 127.
  • a prism 129 is arranged in the path between the lens 125 and the imaging element.
  • the DMD chip 127 comprises a matrix of individually controllable, movable mirrors.
  • the light reflected by the mirror passes through the prism 127 to the projection lens 133 or it is reflected away from the projection lens. This way a picture can be created.
  • FIG. 7 starting from the light sources, several emission angles have been drawn for clarity. Downstream, from the integrator, these angles have been omitted and only the central beam along the optical axis drawn.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un procédé pour la combinaison ou la séparation de faisceaux de lumière pratiquement non polarisée d'au moins trois intervalles de longueur d'onde différents. Selon l'invention, la séparation ou la combinaison du faisceau de lumière de l'intervalle de longueur d'onde qui se situe entre les autres intervalles de longueur d'onde a lieu lorsque les faisceaux de la lumière des deux autres intervalles de longueur d'onde sont déjà ou encore combinés. L'invention concerne également une unité d'éclairage qui comprend une source de lumière blanche et qui utilise ce procédé via un filtre d'interférence pour la séparation de la lumière blanche en faisceaux lumineux rouge, bleu et vert. L'invention concerne en outre une unité d'éclairage qui comprend une source de lumière rouge, verte et bleue et qui utilise ce procédé via un filtre d'interférence pour la combinaison des faisceaux des sources lumineuses.
EP06742824A 2005-05-10 2006-05-08 Dispositif pour la combinaison de lumiere de longueur d'onde differente Ceased EP1880554A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005022260A DE102005022260A1 (de) 2005-05-10 2005-05-10 Vorrichtung zur Kombination von Licht unterschiedlicher Wellenlänge
PCT/EP2006/004277 WO2006119943A1 (fr) 2005-05-10 2006-05-08 Dispositif pour la combinaison de lumiere de longueur d'onde differente

Publications (1)

Publication Number Publication Date
EP1880554A1 true EP1880554A1 (fr) 2008-01-23

Family

ID=36764235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742824A Ceased EP1880554A1 (fr) 2005-05-10 2006-05-08 Dispositif pour la combinaison de lumiere de longueur d'onde differente

Country Status (6)

Country Link
EP (1) EP1880554A1 (fr)
KR (1) KR101264950B1 (fr)
CN (1) CN101171847A (fr)
DE (1) DE102005022260A1 (fr)
TW (1) TW200702869A (fr)
WO (1) WO2006119943A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012223925B4 (de) * 2012-12-20 2024-03-21 Coretronic Corporation Beleuchtungsvorrichtung mit Pumplichtquelle, Leuchtstoffanordnung und Filteranordnung
CN104459998B (zh) * 2015-01-06 2016-09-28 四川大学 一种基于液体棱镜的rgb三色光转换器
DE102015111860A1 (de) 2015-07-22 2017-01-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ölkreislauf und Verfahren zur Schmierung und/oder Kühlung eines Kolbenverbrennungsmotors eines Kraftfahrzeugs
CN111624841B (zh) * 2020-06-24 2022-02-01 成都极米科技股份有限公司 一种混合光源系统以及投影显示设备
CN112295953B (zh) * 2020-10-14 2022-11-22 合肥泰禾智能科技集团股份有限公司 一种三分光路的红外分选机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113764A1 (en) * 1998-05-15 2002-08-22 Fumiaki Yamada Matrix driven liquid crystal display module system apparatus and method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68923186T2 (de) * 1988-01-19 1995-11-02 Hewlett Packard Co Farbprojektionssystem.
JPH07234501A (ja) * 1994-02-22 1995-09-05 Matsushita Electric Ind Co Ltd 色分解装置およびカラー画像読取装置
US5654775A (en) 1995-12-27 1997-08-05 Philips Electronics North America Corporation Three lamp, three light valve projection system
CA2233754A1 (fr) * 1997-04-04 1998-10-04 Sony Corporation Boite a lumiere a modulation numerique permettant l'ajout d'une source lumineuse unique
KR100300959B1 (ko) * 1997-07-05 2001-10-26 윤종용 플랫플레이트를이용한광분리장치와광분리방법및광분리장치의제조방법
JPH11282378A (ja) * 1998-03-26 1999-10-15 Sony Corp カラープロジェクタ
JP3012841B1 (ja) * 1998-11-04 2000-02-28 日本アイ・ビー・エム株式会社 単板式カラープロジェクタ
EP1014693A3 (fr) * 1998-12-23 2000-09-06 Hewlett-Packard Company Séparation des couleurs pour l'analyse d'images en plus de trois couleurs
US6457828B1 (en) * 1999-04-21 2002-10-01 Minolta Co., Ltd. Display optical apparatus
KR100817786B1 (ko) * 1999-12-09 2008-03-31 코닌클리케 필립스 일렉트로닉스 엔.브이. 발광 다이오드 광 소스를 병합하는 디스플레이 시스템
US6525785B2 (en) * 2001-01-22 2003-02-25 K Laser Technology, Inc. Projection apparatus using L-shaped dichroic prism set having a cubically glass block juxtaposed to a dichroic prism for passing light beams without changing direction of the light beams
US7460179B2 (en) * 2002-01-31 2008-12-02 Hewlett-Packard Development Company, L.P. Adaptive image display
EP1471746A3 (fr) * 2003-03-31 2006-07-12 Barco N.V. Appareil de projection et système de source lumineuse à lampe pour un tel appareil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113764A1 (en) * 1998-05-15 2002-08-22 Fumiaki Yamada Matrix driven liquid crystal display module system apparatus and method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"PROJECTION DISPLAYS.", 1 January 1999, CHICHESTER : JOHN WILEY & SONS., GB, ISBN: 978-0-471-98253-1, article EDWARD H. STUPP ET AL: "Projection Displays", XP055278444, 030124 *
See also references of WO2006119943A1 *

Also Published As

Publication number Publication date
CN101171847A (zh) 2008-04-30
DE102005022260A1 (de) 2006-11-16
TW200702869A (en) 2007-01-16
KR101264950B1 (ko) 2013-05-15
KR20080005498A (ko) 2008-01-14
WO2006119943A1 (fr) 2006-11-16

Similar Documents

Publication Publication Date Title
DE10341626B4 (de) Beleuchtungsmodul zur Farbbildanzeige
DE60226028T2 (de) Projektionssystem mit geringem astigmatismus
DE10359753B3 (de) Anordnung zum Beleuchten eines Displays
EP0456652B1 (fr) Separateur optique de couleurs
DE102011012297B4 (de) Beleuchtungsvorrichtung
DE102012220570B4 (de) Projektionsanordnung
DE102012100446A1 (de) Beleuchtungssystem
DE102013222430A1 (de) Beleuchtungsvorrichtung und Verfahren zum Erzeugen von Licht mittels einer Wellenlängenkonversionsanordnung und eines Bandstoppfilters sowie Verfahren zum Bereitstellen eines Bandstoppfilters
EP1166166A1 (fr) Dispositif de division et de recombinaison spectrales de la lumiere, et procede de modulation spectrale selective de la lumiere
WO2006131012A1 (fr) Filtre a bande passante multiple pour dispositif de projection
EP1880554A1 (fr) Dispositif pour la combinaison de lumiere de longueur d'onde differente
DE10327551B4 (de) Bildanzeigevorrichtung des Projektionstyps
WO2014005578A1 (fr) Dispositif de projection stéréoscopique, système de projection stéréoscopique et procédé de projection d'images stéréoscopiques
DE60130407T2 (de) Optisches Beleuchtungssystem zur Verwendung in einem Projektor
DE19607510A1 (de) LCD-Projektor und Verfahren zur Projektion
DE102015213552A1 (de) Lichtmodul für einen Kraftfahrzeugscheinwerfer mit einer Laserlichtquelle
DE68911816T2 (de) Bildprojektionsvorrichtung.
DE60036339T2 (de) Farbprojektor
WO2016030121A1 (fr) Dispositif d'éclairage équipé d'un ensemble de conversion de longueur d'onde
DE102015116187A1 (de) Beleuchtungsanordnung, Strahlkombinationsvorrichtung und Verfahren zur Einkopplung von mindestens drei Eingangslichtstrahlen in einen Lichtleiter
DE10345431B4 (de) Vorrichtung zur homogenen mehrfarbigen Beleuchtung einer Fläche
WO2002100114A1 (fr) Systeme pour projeter une image polychrome sur une surface de projection
DE102017209787A1 (de) Head-Up-Display
DE9116743U1 (de) Projektionsgerät für die Großbildprojektion
DE10304199B4 (de) Vorrichtung zum Erzeugen von Strahlung einer gewünschten Farbe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070913

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OERLIKON TRADING AG, TRUEBBACH

17Q First examination report despatched

Effective date: 20090603

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OERLIKON SURFACE SOLUTIONS AG, TRUEBBACH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20161121