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DE3632892A1 - Process and its application to continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics - Google Patents

Process and its application to continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics

Info

Publication number
DE3632892A1
DE3632892A1 DE19863632892 DE3632892A DE3632892A1 DE 3632892 A1 DE3632892 A1 DE 3632892A1 DE 19863632892 DE19863632892 DE 19863632892 DE 3632892 A DE3632892 A DE 3632892A DE 3632892 A1 DE3632892 A1 DE 3632892A1
Authority
DE
Germany
Prior art keywords
foils
lenses
transparent
glass
transparency
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Withdrawn
Application number
DE19863632892
Other languages
German (de)
Inventor
Guenter Nowak
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19863632892 priority Critical patent/DE3632892A1/en
Publication of DE3632892A1 publication Critical patent/DE3632892A1/en
Withdrawn legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

A process for continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics is made available. The process is carried out by means of discs, lenses or foils which are covered completely or in part either two-dimensionally or with a narrow grating of electrically controllable liquid crystals, which are controlled with variable electric pulses. This process is used preferably for adjusting the transparency of vehicles, especially motor vehicles as well as windows in buildings.

Description

Die vorliegende Erfindung betrifft ein Verfahren und des­ sen Anwendung zur stufenlosen Einstellung der Lichtdurch­ lässigkeit von transparenten bzw. durchsichtigen Scheiben, Linsen oder Folien aus Glas oder Kunststoffen.The present invention relates to a method and Application for stepless adjustment of the light through casualness of transparent or transparent panes, Lenses or foils made of glass or plastics.

Es gibt seit einiger Zeit Flüssigkristallanzeigen, die ins­ besondere in Uhren und Displays aller Art verwendet wer­ den. Diese Anzeigen funktionieren regelmäßig so, daß die­ jenigen Ziffern oder Buchstabensegmente, die sichtbar sein sollen, durch elektrische Impulse (ganz) dunkel gemacht werden, während die anderen Segmente nicht sichtbar sind.Liquid crystal displays have been in use for some time especially used in watches and displays of all kinds the. These ads work regularly so that the those digits or segments of letters that are visible should be (completely) darkened by electrical impulses while the other segments are not visible.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zur Verfügung zu stellen, das die stufenlose Einstellung der Lichtdurchlässigkeit von transparenten bzw. durch­ sichtigen Scheiben, Linsen oder Folien aus Glas oder Kunst­ stoffen gestattet. Außerdem ist es Aufgabe der Erfindung, für dieses Verfahren verschiedene Anwendungszwecke zu fin­ den.The object of the present invention is a method to provide that the stepless setting the translucency of transparent or through visible panes, lenses or foils made of glass or art fabrics allowed. It is also an object of the invention for this process to use various purposes the.

Gelöst wird diese Aufgabe dadurch, daß man Scheiben, Lin­ sen oder Folien einsetzt, die ganz oder teilweise ent­ weder flächig oder mit einem engen Raster elektrisch steuer­ barer Flüssigkeitskristalle bedeckt sind, mit variablen elektrischen Impulsen ansteuert, wodurch man die Licht­ durchlässigkeit der Scheiben, Linsen oder Folien in einem sehr weiten Bereich stufenlos einstellen kann.This problem is solved in that discs, Lin sen or uses foils that completely or partially ent do not control either flat or with a narrow grid Liquid crystals are covered with variable drives electrical impulses, which turns the light permeability of the panes, lenses or foils in one can adjust the very wide range continuously.

Diese Flüssigkeitskristalle dienen damit nicht (nur) für Anzeigezwecke und nicht nur der Einstellung der beiden Endzustände hell (transparent) bzw. dunkel. These liquid crystals are not (only) used for Display purposes and not just the setting of the two Final states light (transparent) or dark.  

Gemäß der Erfindung werden die LC-Raster auf Scheiben, Lin­ sen oder Folien vielmehr mit variablen Impulszeiten ange­ steuert, wodurch die Lichtdurchlässigkeit des Glases oder der Folie in einem sehr weiten Bereich stufenlos gesteuert werden kann.According to the invention, the LC grid on panes, lines or foils are rather controlled with variable pulse times, as a result of which the light transmission of the glass or the foil can be steplessly controlled over a very wide range.

Eine erfindungsgemäß bevorzugte Anwendung des erfindungs­ gemäßen Verfahrens oder der Durchführung dieses Verfahrens dienenden Scheiben oder Folien ergibt sich insbesondere für den Kfz-Bereich. Hier werden beispielsweise getönte Scheiben angeboten, die ein Fahrzeug optisch aufwerten und im Sommer die Sonneneinstrahlung und damit die Erwärmung des Fahrzeuginneren verringern.A preferred application of the invention according to the invention according to the procedure or the implementation of this procedure serving disks or foils results in particular for the automotive sector. Here, for example, are tinted Offered windows that visually enhance a vehicle and in summer the sun exposure and thus the warming reduce the interior of the vehicle.

Der Nachteil dieser getönten Scheiben besteht darin, daß die Lichtdurchlässigkeit auch bei Nachtfahrten gemindert ist. Mit dem erfindungsgemäßen System kann die Lichtdurch­ lässigkeit der Scheiben den gewünschten Verhältnissen stufenlos angepaßt werden. Diese Anpassung kann sowohl manuell wie auch, insbesondere für die Frontscheibe - und dort fast trägheitslos - automatisch erfolgen. Insbeson­ dere bei abgestellten Fahrzeugen kann man gemäß der Er­ findung eine totale Verdunklung einstellen und so die Er­ wärmung des Innenraums der Kraftfahrzeuge auf ein Minimum reduzieren. Selbstverständlich lassen sich auf entsprechen­ de Weise die Scheiben von Zügen, Flugzeugen sowie von Ge­ bäudefenstern hinsichtlich der Lichtdurchlässigkeit ein­ stellen.The disadvantage of these tinted windows is that the light transmission is also reduced when driving at night is. With the system according to the invention, the light can be transmitted through the slices of the desired proportions can be adjusted continuously. This adjustment can be both manually as well, especially for the windscreen - and there almost inertia - automatically. In particular with parked vehicles one can according to the Er total darkening and so the Er heating the interior of the motor vehicles to a minimum to reduce. Of course, can be matched on de manner the panes of trains, airplanes and Ge building windows in terms of light transmission put.

Außerdem können in bewährter Manier auch Fahrzeugdaten mit einstellbarem Kontrast, aber immer noch durchsichtig, auf den Fahrzeugscheiben angezeigt werden.In addition, vehicle data can also be used in a proven manner adjustable contrast, but still see-through displayed on the vehicle windows.

Eine weitere Einsatzmöglichkeit, insbesondere für eine mit einem in LC-Raster versehene Selbstklebefolie, ist die Nach­ rüstung von Fahrzeugscheiben für die oben dargestellten Zwecke. Bei Heckscheiben kann man außerdem, durch eine ent­ sprechende Ansteuerung des LC-Rasters, die von manchen Auto­ fahrern gewünschten durchsichtigen Bilder auf der Heck­ scheibe abbilden und, falls gewünscht, beispielsweise mittels Datenspeicher beliebig wechselbarer Motive.Another possible application, in particular for a self-adhesive film provided with an LC grid, is the retrofitting of vehicle windows for the purposes described above. In the case of rear windows, one can also, by appropriately controlling the LC grid, map the transparent images desired by some drivers on the rear window and, if desired, for example, by means of data storage, freely changeable motifs.

Vorbehaltlich einer Genehmigung könnten auf Fahrzeugschei­ ben auch Werbegraphiken oder -texte abgebildet werden. Ent­ sprechende Werbeträger könnten auch innen oder auf Schau­ fensterscheiben von Geschäften aufgebracht werden.Subject to approval, vehicle registration could You can also display advertising graphics or texts. Ent speaking advertising media could also be inside or on display shop window panes.

Noch eine weitere Einsatzmöglichkeit gibt es gemäß der Er­ findung im Bereich der Optik, wo man beispielsweise elektro­ nische Verschlüsse oder Blenden für Fotoapparate und Kameras aller Art realisieren kann. There is still another possible application according to the Er finding in the field of optics, where you can, for example, electro African closures or covers for cameras and cameras of all kinds.

Claims (2)

1. Verfahren zur stufenlosen Einstellung der Licht­ durchlässigkeit von transparenten bzw. durchsich­ tigen Scheiben, Linsen oder Folien aus Glas oder Kunststoffen, dadurch gekennzeichnet, daß man Schei­ ben, Linsen oder Folien einsetzt, die ganz oder teilweise entweder flächig oder mit einem engen Ra­ ster elektrisch steuerbarer Flüssigkeitskristalle bedeckt sind, mit variablen elektrischen Impul­ sen ansteuert, wodurch man die Lichtdurchlässig­ keit der Scheiben, Linsen oder Folien in einem sehr weiten Bereich stufenlos einstellen kann.1. A method for continuously adjusting the light transmission of transparent or see-through panes, lenses or foils made of glass or plastics, characterized in that one uses ben, lenses or foils, the whole or in part either flat or with a narrow Ra ster electrically controllable liquid crystals are covered, driven with variable electrical impulses, whereby the light transmission speed of the panes, lenses or foils can be continuously adjusted in a very wide range. 2. Anwendung des Verfahrens gemäß Anspruch 1 zur Ein­ stellung der Lichtdurchlässigkeit der Scheiben von Kraftfahrzeugen.2. Application of the method according to claim 1 for one position of the light transmission of the panes of Motor vehicles.
DE19863632892 1986-09-27 1986-09-27 Process and its application to continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics Withdrawn DE3632892A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863632892 DE3632892A1 (en) 1986-09-27 1986-09-27 Process and its application to continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863632892 DE3632892A1 (en) 1986-09-27 1986-09-27 Process and its application to continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics

Publications (1)

Publication Number Publication Date
DE3632892A1 true DE3632892A1 (en) 1988-04-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038498A1 (en) * 1990-12-03 1992-06-04 Trebe Elektronik Inh Joannis T Plastics foil with controllable transparency - comprises liq. crystal layer between polyvinyl chloride foil layers, for blind slat, window coating and composite glass interlayer
DE19644913A1 (en) * 1996-10-29 1998-04-30 Ekkehard Finkeissen Flexible, size adjustable foil with electrically controlled transparency
US5878809A (en) * 1995-07-20 1999-03-09 Mercedes-Benz Ag Process and system for controlling an air-conditioning system for a vehicle interior
DE102006018380A1 (en) * 2006-04-20 2007-10-31 Siemens Ag Window pane for a vehicle for passenger transport purposes with a display device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102243A1 (en) * 1970-01-19 1971-07-29 Ppg Industries Inc
DE2442998A1 (en) * 1974-09-07 1976-03-18 Josef Gail Lens for welder's goggles or mask or sunglasses - for automatic inertia-free control of fluctuations in light intensity
DE2541900A1 (en) * 1974-09-20 1976-04-01 Hitachi Ltd LIQUID CRYSTAL DISPLAY DEVICE
DE2639556A1 (en) * 1975-09-03 1977-03-17 Thomson Brandt OPTICAL PROJECTION EQUIPMENT AND OPTICAL READER EQUIPPED WITH IT
DE3302195A1 (en) * 1983-01-24 1983-08-11 Miroslav 8000 München Kupsa Mirror with adjustable mirror image
GB2116242A (en) * 1982-02-23 1983-09-21 Nigel Dennis Hall Glazing
DE3223407A1 (en) * 1982-06-23 1983-12-29 Jan Dipl.-Ing. 2071 Todendorf Christlieb Window with an integrated automatically acting or manually actuatable darkening device
DE3230017A1 (en) * 1982-08-12 1984-02-16 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Darkening arrangement for transparent multi-layer panes
DE3237217A1 (en) * 1982-10-07 1984-04-12 Siemens AG, 1000 Berlin und 8000 München Diaphragm for optical systems or devices
DE3446474A1 (en) * 1984-12-20 1986-07-03 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn LIQUID CRYSTAL MODULATOR FOR VOICE AND INFORMATION TRANSFER IN THE VISIBLE AND INFRATER AREA

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102243A1 (en) * 1970-01-19 1971-07-29 Ppg Industries Inc
DE2442998A1 (en) * 1974-09-07 1976-03-18 Josef Gail Lens for welder's goggles or mask or sunglasses - for automatic inertia-free control of fluctuations in light intensity
DE2541900A1 (en) * 1974-09-20 1976-04-01 Hitachi Ltd LIQUID CRYSTAL DISPLAY DEVICE
DE2639556A1 (en) * 1975-09-03 1977-03-17 Thomson Brandt OPTICAL PROJECTION EQUIPMENT AND OPTICAL READER EQUIPPED WITH IT
GB2116242A (en) * 1982-02-23 1983-09-21 Nigel Dennis Hall Glazing
DE3223407A1 (en) * 1982-06-23 1983-12-29 Jan Dipl.-Ing. 2071 Todendorf Christlieb Window with an integrated automatically acting or manually actuatable darkening device
DE3230017A1 (en) * 1982-08-12 1984-02-16 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Darkening arrangement for transparent multi-layer panes
DE3237217A1 (en) * 1982-10-07 1984-04-12 Siemens AG, 1000 Berlin und 8000 München Diaphragm for optical systems or devices
DE3302195A1 (en) * 1983-01-24 1983-08-11 Miroslav 8000 München Kupsa Mirror with adjustable mirror image
DE3446474A1 (en) * 1984-12-20 1986-07-03 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn LIQUID CRYSTAL MODULATOR FOR VOICE AND INFORMATION TRANSFER IN THE VISIBLE AND INFRATER AREA

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038498A1 (en) * 1990-12-03 1992-06-04 Trebe Elektronik Inh Joannis T Plastics foil with controllable transparency - comprises liq. crystal layer between polyvinyl chloride foil layers, for blind slat, window coating and composite glass interlayer
US5878809A (en) * 1995-07-20 1999-03-09 Mercedes-Benz Ag Process and system for controlling an air-conditioning system for a vehicle interior
DE19644913A1 (en) * 1996-10-29 1998-04-30 Ekkehard Finkeissen Flexible, size adjustable foil with electrically controlled transparency
DE102006018380A1 (en) * 2006-04-20 2007-10-31 Siemens Ag Window pane for a vehicle for passenger transport purposes with a display device

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