DE102004015102A1 - Electrostatically controlled light reflector uses voltage to change form of reflector surface in a fluid - Google Patents

Electrostatically controlled light reflector uses voltage to change form of reflector surface in a fluid Download PDF

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Publication number
DE102004015102A1
DE102004015102A1 DE102004015102A DE102004015102A DE102004015102A1 DE 102004015102 A1 DE102004015102 A1 DE 102004015102A1 DE 102004015102 A DE102004015102 A DE 102004015102A DE 102004015102 A DE102004015102 A DE 102004015102A DE 102004015102 A1 DE102004015102 A1 DE 102004015102A1
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DE
Germany
Prior art keywords
fluid
electrically insulating
light
end cap
reflector
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Withdrawn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
DE102004015102A
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German (de)
Inventor
Ruediger Ufermann
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DE102004015102A priority Critical patent/DE102004015102A1/en
Publication of DE102004015102A1 publication Critical patent/DE102004015102A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/10—Construction
    • F21V7/16—Construction with provision for adjusting the curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/003—Controlling the distribution of the light emitted by adjustment of elements by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/06—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of fluids in transparent cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0825—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a flexible sheet or membrane, e.g. for varying the focus
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The electrostatically controlled reflector [1] has a chamber [10] with a non transparent end cap [2] at one end and a transparent end cap [8] at the other. The chamber is filled with a light reflecting fluid [4] and an optically transparent light conducting fluid [5]. One or more LED [7] are set into the cap and by changing the control voltage [9] the reflecting boundary can be changed [3].

Description

Die Erfindung betrifft einen elektrostatisch steuerbaren Reflektor nach der im Oberbegriff des Anspruchs 1 angegebenen Art.The The invention relates to an electrostatically controllable reflector specified in the preamble of claim 1 Art.

Reflektoren zur Richtungsänderung von Lichtstrahlen bzw. elektromagnetischer Strahlung werden vielfältigen Ausführungsformen hergestellt.reflectors to change direction of light rays or electromagnetic radiation are various embodiments produced.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Anordnung nach der im Oberbegriff des Anspruchs 1 genannten Art vorzuschlagen, mit der die vorgegebenen Aktionen erfindungsgemäß erfüllt werden können, wobei Vorteilhafte Weiterbildungen der Erfindung durch die von diesem Anspruch abhängigen Ansprüchen gekennzeichnet sind.outgoing From this prior art, the invention is based on the object an arrangement according to the mentioned in the preamble of claim 1 To propose way in which the given actions are fulfilled according to the invention can, Advantageous developments of the invention by that of this Claim dependent claims characterized are.

Die Anordnung unterscheidet sich von der Eingangs genannten Art von bisherigen Ausführungsformen insbesondere dadurch, dass die Formgebung der reflektierenden Fläche des Reflektors durch elktrostatische Steuerung in nahezu unbegrenzter Formgebung möglich ist.The Arrangement differs from the input named type of previous embodiments in particular in that the shape of the reflective surface of the Reflectors by electrostatic control in almost unlimited Shaping possible is.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass sich zwei nicht mischbare Fluide in Form eines leitenden transparenten und eines nichtleitenden lichtreflektierenden Fluids bzw. umgekehrt in einer gemeinsamen Kammer befinden, wobei, wie durch die Schutzrechtsanmeldung WO 03/069380 A1 bereits bekannt, aufgrund einer elektrostatisch induzierten Änderung der Oberflächenspannung variable Linsenformen bzw. erfindungsgemäß neuerdings auch elektromagnetische Strahlung refelktierende Reflektoren erzielt werden können.According to the invention this Task solved by that is two immiscible fluids in the form of a conductive transparent and a non-conductive light-reflecting fluid, or vice versa a common chamber, whereby, as by the patent application WO 03/069380 A1 already known, due to an electrostatic induced change the surface tension variable lens shapes or according to the invention recently also electromagnetic Radiation Reflecting reflectors can be achieved.

In folgendem wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit einer Zeichnung beschrieben.In The following is the invention with reference to a preferred embodiment described in conjunction with a drawing.

Dabei zeigt:there shows:

1 eine vereinfachte Schnittzeichnung des elektrostatisch steuerbaren Reflektors (1) in Seitenansicht. Die Kammer (10) mit der nichttransparenten elektrisch isolierenden Endkappe (2) und der transparenten elektrisch isoliernden Endkappe (8) beinhaltet das lichtstrahlenreflektierende elektrisch isolierende Fluid (4) und das optisch transparente elektrisch leitende Fluid (5). Wird nun der Leuchtkörper (7) in einer bevorzugten Ausführungsform als Leuchtdiode (LED) oder auch mehreren Leuchtdioden vor oder auch in die transparente elektrisch isolierende Endkappe (8) gesetzt oder integriert, so werden deren Lichtstrahlen im Grenzbereich der beiden Fluide reflektiert, wobei durch Änderung der Steuerspannung (9) auch die Form des reflektierenden Fluidgrenzbereiches (3) bekanntermaßen verändert wird. 1 a simplified sectional view of the electrostatically controllable reflector ( 1 ) in side view. The chamber ( 10 ) with the nontransparent electrically insulating end cap ( 2 ) and the transparent electrically insulating end cap ( 8th ) includes the light beam reflecting electrically insulating fluid ( 4 ) and the optically transparent electrically conductive fluid ( 5 ). Will now the luminous body ( 7 ) in a preferred embodiment as a light-emitting diode (LED) or even a plurality of light emitting diodes before or in the transparent electrically insulating end cap ( 8th ) or integrated, their light beams are reflected in the boundary region of the two fluids, whereby by changing the control voltage ( 9 ) also the shape of the reflective fluid boundary region ( 3 ) is known to be changed.

1 1
elektrostatisch steuerbarer Reflektorelectrostatically controllable reflector
22
elektrisch isolierende Endkappeelectrical insulating end cap
3 3
FluidgrenzbereichFluid boundary
44
elektrisch isolierendes Fluidelectrical insulating fluid
5 5
elektrisch leitendes Fluidelectrical conductive fluid
66
reflektierter Lichtstrahlreflected ray of light
7 7
Leuchtkörperilluminant
88th
transparente elektrisch isolierende Endkappetransparent electrically insulating end cap
9 9
teuerspannung control voltage
1010
Kammerchamber

Claims (5)

Lichtreflektor, dadurch gekennzeichnet, dass sich in der kreisrunden oder nicht kreisrunden Kammer (10) zwischen der nichttransparenten elektrisch isolierende Endkappe (2) und der transparenten elektrisch isolierenden Endkappe (8) das Licht- bzw. die elektromagnetische Strahlung reflektierende elektrisch isolierende Fluid (4) befindet, so dass im Fluidgrenzbereich (3) der beiden Fluide die von dem Leuchtkörper (7) ausgesandte elektromagnetische Strahlung durch Veränderung der Steuerspannung (9) in ihrer Richtung verändert werden kann.Light reflector, characterized in that in the circular or non-circular chamber ( 10 ) between the nontransparent electrically insulating end cap ( 2 ) and the transparent electrically insulating end cap ( 8th ) the light or the electromagnetic radiation reflecting electrically insulating fluid ( 4 ), so that in the fluid boundary region ( 3 ) of the two fluids from the luminous body ( 7 ) emitted electromagnetic radiation by changing the control voltage ( 9 ) can be changed in their direction. Lichtreflektor nach Anspruch 1 dadurch gekennzeichnet, dass das elektrisch isolierende Fluid (4) direkt Licht reflektiert bzw. gleichmäßig darin verteilt bleibende lichtreflektierende Mikrokörper oder Nanokörper aufweist, wobei durch zusätzliche elektrostatische oder elektromagnetische Steuerungseinrichtung die Reflexionsrichtung der zugesetzten Stoffe beeinflusst werden kann.Light reflector according to claim 1, characterized in that the electrically insulating fluid ( 4 ) directly reflects light or evenly distributed therein having light-reflecting microbodies or nanobodies, wherein the reflection direction of the added substances can be influenced by additional electrostatic or electromagnetic control device. Lichtreflektor nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die in das elektrisch isolierende Fluid (4) oder das elektrisch leitende Fluid (5) zugesetzten leitenden oder nichtleitenden Reflexionsmikrokörper bzw. Nanokörper sich so im Fluidgrenzbereich (3) der beiden Fluide einstellen, dass ebenfalls ein lichtreflektiernder Reflektor gegeben ist.Light reflector according to claim 1 and 2, characterized in that in the electrically insulating fluid ( 4 ) or the electrically conductive fluid ( 5 ) added conductive or non-conductive reflection micro-body or nanobodies so in the fluid boundary area ( 3 ) adjust the two fluids that also a light reflecting reflector is given. Lichtreflektor nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, dass als Leuchtkörper (7) vorzugsweise Leuchtdioden eingesetzt werden, die auch integraler Bestandteil der transparenten elektrisch isolierenden Endkappe (8) bzw. des elektrostatisch steuerbaren Reflektors (1) sein können.Light reflector according to one of claims 1 to 3, characterized in that as a luminous body ( 7 ) are preferably used, which are also an integral part of the transparent electrically insulating end cap ( 8th ) or the electrostatically controllable reflector ( 1 ) could be. Lichtreflektor nach einem der Ansprüche 1 bis 4 , dadurch gekennzeichnet, dass das elektrisch isolierende Fluid (4) und das elektrisch leitende Fluid (5) optisch transparent sind, wobei durch die sich im Fluidgrenzbereich (3) befindenden Reflexionskörper bei ebenfalls transparenter elektrisch isolierender Endkappe (2) darin integral oder auch davon beabstandet ebenfalls Leuchtdioden platziert bzw. integriert werden können.Light reflector according to one of claims 1 to 4, characterized in that the electrically insulating fluid ( 4 ) and the electrically conductive fluid ( 5 ) are optically transparent, whereby in the fluid boundary region ( 3 ) reflection body also transparent electrically insulating end cap ( 2 ) integrally or even beabstan thereof det also light emitting diodes can be placed or integrated.
DE102004015102A 2004-03-27 2004-03-27 Electrostatically controlled light reflector uses voltage to change form of reflector surface in a fluid Withdrawn DE102004015102A1 (en)

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Applications Claiming Priority (1)

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DE102004015102A DE102004015102A1 (en) 2004-03-27 2004-03-27 Electrostatically controlled light reflector uses voltage to change form of reflector surface in a fluid

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011104499A3 (en) * 2010-02-23 2011-10-27 Ecolumens Limited Liquid cooled semi conductor light
DE102012103161A1 (en) * 2012-04-12 2013-10-17 Osram Opto Semiconductors Gmbh Optoelectronic semiconductor device
CN103542278A (en) * 2012-07-10 2014-01-29 元太科技工业股份有限公司 Lamp fitting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011104499A3 (en) * 2010-02-23 2011-10-27 Ecolumens Limited Liquid cooled semi conductor light
GB2491311A (en) * 2010-02-23 2012-11-28 Ecolumens Ltd Liquid cooled semi conductor light
US8779661B2 (en) 2010-02-23 2014-07-15 James Bain Smith Liquid cooled semi conductor
GB2491311B (en) * 2010-02-23 2014-07-23 Ecolumens Ltd Liquid cooled semi conductor light
DE102012103161A1 (en) * 2012-04-12 2013-10-17 Osram Opto Semiconductors Gmbh Optoelectronic semiconductor device
CN103542278A (en) * 2012-07-10 2014-01-29 元太科技工业股份有限公司 Lamp fitting
CN103542278B (en) * 2012-07-10 2015-08-12 元太科技工业股份有限公司 Lamp fitting

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