EP1812924A2 - Monitor mit glasfaser-projektor zur grossbilddarstellung und verfahren zu seiner herstellung - Google Patents
Monitor mit glasfaser-projektor zur grossbilddarstellung und verfahren zu seiner herstellungInfo
- Publication number
- EP1812924A2 EP1812924A2 EP05798148A EP05798148A EP1812924A2 EP 1812924 A2 EP1812924 A2 EP 1812924A2 EP 05798148 A EP05798148 A EP 05798148A EP 05798148 A EP05798148 A EP 05798148A EP 1812924 A2 EP1812924 A2 EP 1812924A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- screen
- imaging element
- monitor
- pixels
- pixel
- 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- Withdrawn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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
- G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
Definitions
- the invention relates in the first place to a monitor for large image display according to claim 1. Furthermore, the invention relates to a method for producing a monitor according to claim 7.
- EPO 101 112 Bl discloses an image transmission apparatus having at least one image display device and an image intensifier (glass fiber projector) consisting of a stack of single-layer fiber tapes and having a substantially rectangular entrance window and a substantially rectangular exit window the axial distance between the individual fibers in two orthogonal directions at the exit window is greater than that at the entrance window.
- the entrance window is arranged in a plane which is substantially parallel to a plane perpendicular to the exit window and in this vertical plane the first side or a second side of the exit window is arranged perpendicular to the first side.
- the exit window is formed by a window plate having a light-absorbing surface, and this window plate is formed with openings in which the fiber ends are arranged.
- the window panel includes a stack of strips having a light absorbing surface in or on which the fiber ends are disposed, the fiber ends being provided with an anti-reflective coating and waved on the side of the exit window in at least one direction parallel to that of the rectangle sides of the exit window , Alternatively, it can be provided to arrange on the exit window a transparent plate, wherein the spaces between the fiber ends and the Plate are filled with a paste whose refractive index is equal to the refractive index of the plate.
- this plate can be formed wave-shaped on the side facing the exit window, wherein this wave formation extends parallel to one of the orthogonal sides of the exit window and is provided with an antireflecting coating on the side facing away from the exit window.
- the fibers may be compressed such that there is no space left between the fibers, the fibers being provided with a light absorbing coating and an anti-reflective coating.
- the display assembly includes three picture tubes illuminated in red, green and blue, a two-color mirror device and a lens system, and the two-color mirror device and the lens system focus the three images on the exit window.
- the image display tube can be provided with a glass fiber window plate and the image display device is formed by a controllable light modulator.
- each pixel of the monitor screen is connected to the corresponding pixel of a projecting beyond the monitor screen flat and rectangular display surface by means of glass fibers and on all sides of this protruding display area more monitors are accurately connected.
- each pixel of the picture tube surface of the monitor with the corresponding pixel of a projecting beyond the picture tube edges of the monitor, flat and rectangular display area to connect by means of glass fibers.
- This coupling surface corresponds in shape to the surface of the cathode ray tube, while the display surface is flat.
- These areas are z. B. produced by grinding the resulting from the glued glass fibers intent block, which is screwed with an adjustable device to the monitor.
- the image sharpness can be fully retained by the optical fibers or glass fibers, wherein the point resolution is somewhat reduced due to the larger display area compared to the coupling surface.
- the glass fibers are - as already mentioned glued together, preferably to individual bundles and at the four on the picture tube edges protruding strips of the display area now more monitors can be connected with pinpoint accuracy.
- the layer thickness serving to distance the To determine fibers to each other, whereby different light spot sizes are generated on a screen.
- a translucent base plate which is anti-reflective and slightly diffuse to avoid light reflections.
- a rigid plate for. B. a glass plate, or a flexible plate, z. B. plastic, can be used. This then allows the construction of a flexible screen.
- the principle of the screen uses the Lichtleitfahtechnik of the glass fiber, so that at one end per glass fibers, a screen light point can be irradiated and visible at the other end of the light spot on the base plate
- Each individual, merged into rows and lines surfaces, glass fibers is z .
- the individual glass fibers can, depending on the intended use, have different cross-sections Round and hexagonal cross-sections have proven to be very versatile, but it is also possible to choose square, diamond-shaped or triangular or polygonal cross-sections.
- hexagonal cross sections are suitable for the construction of screens whose individual points of light have no edge to the adjacent light point.
- the other end has different embodiments depending on the purpose. If, for example, brown tubes (electron irradiation) are used to generate the light spot on the screen, then the glass fiber radiating ends can be concave in or configured in the form of a partially open hollow sphere.
- a light exit body for fiber optic light guides, in particular for signal display devices for displaying traffic signs is known from EP 0580 942 A1.
- a tapered extension portion is provided at the outlet end of the light exit body, whereby not only the desired broadening of the emission angle is achieved, but also over the entire effective angle range uniform, high light intensity with a sharp drop in light intensity towards larger angles.
- truncated cone shape of the central region leads to the effect according to the invention, but also other geometric shapes that are close to the truncated cone shape, such as a truncated pyramid with regular or irregular polygon as a base, a truncated cone with a round cut surface, but with a Base with any shape, for example, to achieve a desired asymmetry in the angular distribution of the radiation, including the latter may be desirable if one wants to achieve an angular distribution of the radiated light, which is not rotationally symmetrical This may for example be the case when in a signal display device of Beam angle in the horizontal direction is relatively wide, but in the vertical direction should be limited to the eye level of an observer, whereby light loss up and down are avoided.
- EP 0 415 026 B1 discloses a signal arrangement with a lamp arranged in a lamp housing, and with a radiator which is distant therefrom, with a windshield and a light transmission device arranged between the lamp housing and the radiator.
- the outer diameter of the lens corresponds to an enveloping circle diameter of the light bundle at a distance corresponding to the focal length from the light exit surface, wherein the lenses are formed approximately hyperbolic or kugelkalotten- or parabolic.
- the lenses are associated with their convex side of the side of the end of the light guide and in the beam cross section, in particular on the side facing the lens of the front screen, at least one Umlenklinse arranged with a light beam bundle and at a deflection angle to an optical axis of the lenses is distracted.
- These deflection lenses have cylinder barrel surfaces or spherical cap surfaces facing the optical fiber ends.
- each coordinate point has n display elements and the display elements are arranged in n nested matrices, wherein the bundles of optical fibers are each assigned to a matrix and the control lines are matrix-individually, so that simultaneously n numeric displays can be displayed.
- the number of matrices determines the number of colors in a display.
- n displays can be displayed independently of each other on the scoreboard, if only certain sections of the scoreboard are assigned to it via the control of the switching elements.
- each matrix of the switching elements can be assigned a partial control circuit, via which each switching element of the matrix can be controlled individually, and the partial control circuits can be controlled by the control unit according to the desired display or partial displays.
- the control commands for the control unit can be contained in a programmable memory, which then predefined the most diverse displays, can be retrieved as needed and displayed.
- the switching elements can also be designed as a rotatably mounted and electrically operable by means of a coil flap. The training as a filter for the light waves is possible.
- the transmission characteristics of the filters can be changed magnetically, electrically or thermally.
- the filters can be changed magnetically, electrically or thermally.
- differently designed display devices for optical reproduction of alphanumeric and / or graphical representations for various applications are known.
- a disadvantage of these known display devices is that the means for image magnification between entrance and exit levels are very expensive, especially for lens and mirror, and that the assignment of the pixels in the X and Y plane must be exact in order to avoid geometric distortions. Therefore, in practice, inexpensive display devices are lacking, which permit both an arbitrary allocation of the pixels and also permit extensive flexibility. This is particularly important because the consumer electronics or display device manufacturing industry is considered to be a highly advanced, development-friendly industry that is quick to pick up on and make improvements and simplifications.
- the invention has the object of providing a monitor in such a way that it allows a large image display and is inexpensive manufacturable.
- a plurality of optical waveguides each pixel of the imaging element being connected to one of the optical waveguides
- each pixel of the screen being connected to one of the optical fibers, • And connected to the imaging element control electronics, wherein in accordance with the screen scanned pixels, the assignment of the pixels of the imaging element takes place.
- the monitor according to the invention has the advantage that in a surprisingly simple and cost-effective manner, a free allocation of the pixels of the imaging element and the pixels of the screen is made possible, so that the screen can be adapted to any technical need.
- all systems such as PAL, SECAM, etc. can be used, but it is not necessary to select a line by line representation of individual pixels.
- the monitor is therefore highly flexible and can be adapted to all existing standards.
- the monitor as a passive optical element on a very long life and is as a flat display surface with a small depth, for example, 12 cm, executable. '
- this object is achieved in a method for producing a monitor with a glass fiber projector, consisting of an imaging element, a plurality of optical waveguides, a screen and connected to the imaging element control electronics for large image display according to claim 7, wherein:
- the inventive method according to claim 7 has the advantage that the monitor is automatically produced in a surprisingly simple and cost-effective manner with a few steps and that during assembly or adjustment no complicated assembly or adjustment is required. This is due to the fact that by means of the control electronics, the individual pixels in the X-Y direction are displaced and that by parallel processing, e.g. line by line, the adjustment process can be done in a short time.
- each optical fiber is connected via a magnifying calender to the screen.
- the enlargement calender is designed as a shape of the optical waveguide or the glass body.
- This development of the invention has the advantage that, on the one hand, a corresponding enlargement is achieved by the enlargement calender and, on the other hand, that the bonding of the optical waveguide does not require exact positioning.
- the projection screen and the glass body are arranged in a receptacle which - according to claim 6 i
- FIG. 1 the monitor according to the invention as a block diagram to illustrate the adjustment process
- FIG. 2b in side view of the screen of the monitor according to the invention in the disassembled and assembled state and FIG. 3 a and
- FIG. 3 b shows an embodiment of the screen in section and in plan view.
- FIG. 1 to FIG. 3b show the monitor according to the invention for large-screen display with an imaging element 2 and a plurality of optical waveguides 3.
- Each optical waveguide 3 is connected on the one hand to a pixel of the imaging element 2 and on the other hand to a pixel 45 of the screen 4.
- a control electronics 1 is connected to the imaging element 2, wherein according to the invention in accordance with the screen 4 scanned pixels 45 (or x b , y b ), the assignment of the pixels (x a , y a ) of the imaging element 2 takes place.
- the control electronics 1 has a memory area 7 for storing correction values which are determined by a comparator 6 connected to the imaging element 2 and a screen scanning device 5.
- the screen 4 preferably consists of a projection screen 41 and a glass body 42, each optical waveguide 3 being connected to the screen 4 via a magnification dome 33.
- the enlargement calotte 33 is preferably designed as a configuration of the optical waveguide 3 or of the glass body 42.
- the projection screen 41 and the glass body 42 are arranged in a receptacle 43 and the receptacle 43 has a suction nozzle 44 for generating negative pressure in the receptacle 43.
- the monitor according to the invention is structurally simple constructed using fewer items, allows a rational, automatic Installation practically in one operation and is therefore inexpensive to produce.
- the monitor As a passive optical element, the monitor has a very long service life, has a high degree of flexibility and can be adapted to all existing standards as a result of the free assignment of the pixels of the imaging element 2 and the pixels 45 of the screen 4.
- the feed is flat and direct (ie without light losses) and by grinding or polishing reflections are reliably avoided.
- webs can be arranged between the enlargement calender 33, in order to enable positioning during bonding of the optical waveguide 3 or to prevent sinking into the intermediate space of the enlargement calotte 33 u; by a modular arrangement of various monitors according to the invention is virtually an arbitrarily large and flexibly configurable display area can be built; the projection screen 41 and / or the base body 42 (with the embedded optical waveguides 3) can be made rigid or flexible; for the color representation, a polychromatic light source and only an optical fiber system 3 or a triple optical fiber system 3 may be used; the permanent suction of the projection screen 41 and the base body 42 can be improved by a concave and / or flexible configuration of contiguous edge regions of the projection screen 41 and / or the base body 42 u.a ..
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004051062.8A DE102004051062B4 (de) | 2004-10-19 | 2004-10-19 | Monitor mit Glasfaser-Projektor zur Großbilddarstellung und Verfahren zu seiner Herstellung |
PCT/EP2005/011158 WO2006042735A2 (de) | 2004-10-19 | 2005-10-17 | Monitor mit glasfaser-projektor zur grossbilddarstellung und verfahren zu seiner herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1812924A2 true EP1812924A2 (de) | 2007-08-01 |
Family
ID=36129263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05798148A Withdrawn EP1812924A2 (de) | 2004-10-19 | 2005-10-17 | Monitor mit glasfaser-projektor zur grossbilddarstellung und verfahren zu seiner herstellung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1812924A2 (de) |
DE (1) | DE102004051062B4 (de) |
WO (1) | WO2006042735A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2229598B1 (de) * | 2007-12-06 | 2020-11-11 | Telefonaktiebolaget LM Ericsson (publ) | Anordnung für optische darstellung und drahtlose kommunikation |
DE102008036616A1 (de) | 2008-08-06 | 2010-02-18 | Airbus Deutschland Gmbh | Flächenprojektionssystem zur Abbildung eines visuellen Signals auf einer Oberfläche |
DE102019132252A1 (de) * | 2019-11-28 | 2021-06-02 | HELLA GmbH & Co. KGaA | Anzeigevorrichtung für ein Kraftfahrzeug |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1534565A (en) * | 1976-02-21 | 1978-12-06 | Galileo Electro Optics Corp | Fibre optical imaging systems |
CA1314742C (en) * | 1986-12-12 | 1993-03-23 | Hiromu Terada | Optical fiber array |
FR2688088B1 (fr) * | 1992-02-27 | 1994-06-03 | Securite Signalisation | Dispositif d'affichage. |
EP0618476A1 (de) * | 1993-03-31 | 1994-10-05 | Hughes Aircraft Company | Durchlicht-Projektionsschirm mit Unterdrückung von ausser-axialem Sonnenlicht |
DE4318140C2 (de) * | 1993-06-01 | 1996-07-18 | Fraunhofer Ges Forschung | Verfahren zur Zuordnung der einkoppelseitigen Enden der einzelnen Lichtleitfasern eines Lichtleiterbündels zu den auskoppelseitigen Enden dieser Lichtleitfasern |
DE19610101C2 (de) * | 1996-03-15 | 2002-01-31 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zur Kalibrierung eines Lichtleitfaserbündels für die Informationsübertragung |
US6320174B1 (en) * | 1999-11-16 | 2001-11-20 | Ikonisys Inc. | Composing microscope |
AU2001270374A1 (en) * | 2000-06-15 | 2001-12-24 | Light Management Group Inc. | Fiber optic display screen |
US20020097230A1 (en) * | 2001-01-19 | 2002-07-25 | Transvision, Inc. | Large-screen display with remote optical graphic interface |
KR20030078895A (ko) * | 2001-01-25 | 2003-10-08 | 일진다이아몬드 주식회사 서울지사 | 보정 구역을 사용한 이미지 보상 방법 및 장치 |
-
2004
- 2004-10-19 DE DE102004051062.8A patent/DE102004051062B4/de not_active Expired - Fee Related
-
2005
- 2005-10-17 WO PCT/EP2005/011158 patent/WO2006042735A2/de not_active Application Discontinuation
- 2005-10-17 EP EP05798148A patent/EP1812924A2/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2006042735A3 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004051062A1 (de) | 2006-05-04 |
WO2006042735A3 (de) | 2006-06-15 |
WO2006042735A2 (de) | 2006-04-27 |
DE102004051062B4 (de) | 2016-08-11 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20070521 |
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AK | Designated contracting states |
Kind code of ref document: A2 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 |
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17Q | First examination report despatched |
Effective date: 20070925 |
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DAX | Request for extension of the european patent (deleted) | ||
18D | Application deemed to be withdrawn |
Effective date: 20080206 |
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R17C | First examination report despatched (corrected) |
Effective date: 20080721 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOVA INFORMATIONSTECHNIK GMBH |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20140306 |