DE202007004527U1 - Focus lamp e.g. torch light, has LED provided as light source and resolution optics with focus lens adjusted by creating and varying electrical fields, where lens has chamber filled with fluid e.g. water - Google Patents
Focus lamp e.g. torch light, has LED provided as light source and resolution optics with focus lens adjusted by creating and varying electrical fields, where lens has chamber filled with fluid e.g. water Download PDFInfo
- Publication number
- DE202007004527U1 DE202007004527U1 DE202007004527U DE202007004527U DE202007004527U1 DE 202007004527 U1 DE202007004527 U1 DE 202007004527U1 DE 202007004527 U DE202007004527 U DE 202007004527U DE 202007004527 U DE202007004527 U DE 202007004527U DE 202007004527 U1 DE202007004527 U1 DE 202007004527U1
- Authority
- DE
- Germany
- Prior art keywords
- liquid
- led
- lens
- chamber
- focus lens
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/005—Electric lighting devices with self-contained electric batteries or cells the device being a pocket lamp
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
-
- 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
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
-
- 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
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- 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]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
Abstract
Description
Die Erfindung betrifft eine fokussierbare Lampe, insbesondere eine Taschenlampe, mit einer Leuchtdiode (LED) als Lichtquelle und einer Vorsatzoptik.The The invention relates to a focusable lamp, in particular a flashlight, with a light emitting diode (LED) as the light source and a front optic.
Die in früherer Zeit ausschließlich auf dem Markt erhältlichen Taschenlampen besaßen eine Glühbirne als Lichtquelle, die aufgrund des hohen Energieverbrauches entsprechend großvolumige Batterien mit angepasster Kapazität erforderte. Am großen schaftförmigen Lampenkörper war ein zumeist konischer Lampenkopf befestigt, der auch als Halterung für die Vorsatzoptik diente, wobei durch Dreh- oder Schubbetätigung der Abstand einer optischen Linse oder eines Linsensystems im Lampenkopf zu der Glühbirne veränderbar war. Durch diese Veränderung ließ sich der Strahlengang bzw. der Lichtkegel variieren.The in the past Time exclusively available on the market Flashlights possessed a light bulb as a light source, due to the high energy consumption accordingly large volume batteries with adapted capacity required. At the big one shaft-shaped lamp body was a mostly conical lamp head attached, which also serves as a holder for the Front optics served, where by turning or pushing operation of Distance of an optical lens or a lens system in the lamp head to the light bulb variable was. Through this change let himself go the beam path or the light cone vary.
Durch Weiterentwicklung der LED, deren jüngste Typen einen hohen Lichtstrom bei deutlich geringerem Stromverbrauch liefern, konnten die Taschenlampen kleinvolumiger gebaut werden, da entsprechend kleinere Batteriezellen als Stromquelle ausreichen. Hinzu kommt die Gewichtsersparnis. Neben einer geringeren Stromaufnahme sind Leuchtdioden auch konstruktionsbedingt besonders stoßfest und schlagunempfindlich. Leuchtdioden zeichnen sich zudem durch eine extrem lange Lebensdauer aus, so dass ein in früherer Zeit häufig notwendiger Glühbirnenwechsel entfällt.By Further development of the LED, the youngest types of which have a high luminous flux deliver at significantly lower power consumption, the flashlights be built smaller volume, since correspondingly smaller battery cells be sufficient as a power source. Added to this is the weight savings. Next A lower current consumption LEDs are also design-related especially shockproof and impact-resistant. Light-emitting diodes are also characterized by a extremely long life, making a bulb replacement that is often necessary in the old days eliminated.
Inzwischen sind auch Linsen entwickelt worden, die in einem Bauteil zwei nicht mischbare Flüssigkeiten mit unterschiedlicher Lichtbrechung beinhalten. Die Zylinderinnenwand ist mit einer Beschichtung versehen, die ihr hydrophobes Verhalten beim Anlegen einer Spannung verändert. Durch dieses auch als „Elektrowetting" bezeichnete Phänomen werden die beiden Flüssigkeiten unterschiedlich stark von der Zylinderwand angezogen oder abgestoßen, so dass sich eine Änderung der Grenzfläche der beiden Flüssigkeiten einstellen und insgesamt die Linse stufenlos hinsichtlich ihrer Brechkraft verändert werden kann.meanwhile Lenses have also been developed that are not in a component two mixable liquids involve with different refraction of light. The cylinder inner wall is provided with a coating that shows its hydrophobic behavior changed when applying a voltage. This phenomenon, also referred to as "electrowetting", becomes the two liquids attracted or repelled by the cylinder wall to a different extent, so that is a change the interface of two liquids Adjust and overall the lens stepless in terms of their Refractive power changed can be.
Solche
verstellbaren Fokuslinsen werden beispielsweise in der
Es ist Aufgabe der vorliegenden Erfindung, eine fokussierbare Lampe anzugeben, die kleinvolumig gebaut werden kann und eine stufenlose Fokussierung auf einfache Weise ermöglicht.It Object of the present invention, a focusable lamp which can be built small volume and a stepless Focusing in a simple way allows.
Diese Aufgabe wird durch die Lampe nach Anspruch 1 gelöst, die erfindungsgemäß dadurch gekennzeichnet ist, dass die Vorsatzoptik aus einer durch Anlegen und Variieren eines elektrischen Feldes verstellbaren Fokuslinse besteht, die rückwärtig eine Sacklochbohrung aufweist, in der die LED angeordnet ist. Anders als nach sämtlichen nach dem Stand der Technik bekannten Ausführungsformen bilden erstmals die LED und die fokussierbare Flüssiglinse eine kompakte Baueinheit, in der Relativverschiebungen der Linse gegenüber der Vorsatzoptik zur Änderung des Strahlungskegels nicht mehr erforderlich sind. Durch diese Maßnahme sinkt die Störanfälligkeit deutlich, da auf Führungen für die Relativbewegung sowie etwaige Antriebsmittel verzichtet werden kann. Aufgrund der hohen Lebensdauer der LED sowie der Flüssiglinse ist es auch nicht erforderlich diese Baueinheit zu öffnen, um etwaige Reparaturen oder einen Teileaustausch vorzunehmen. Zudem lässt sich in dieser Baueinheit die gesamte notwendige Steuerung zur Änderung der Spannung als auch zur Stromversorgung der LED innerhalb eines einzigen Bauteils anordnen.These The object is achieved by the lamp according to claim 1, which according to the invention thereby is characterized in that the intent optics from a by applying and varying an electric field adjustable focus lens exists, the back one Has blind hole, in which the LED is arranged. Different as after all Embodiments known from the prior art form for the first time the LED and the focusable liquid lens a compact unit, in the relative displacements of the lens across from the front optics for change of the radiation cone are no longer necessary. By this measure sinks the susceptibility clearly, on guides for the Relative movement and any drive means can be dispensed with. Due to the long life of the LED as well as the liquid lens It is also not necessary to open this unit to make any repairs or parts replacement. moreover let yourself in this unit all the necessary control to change the voltage as well as the power supply of the LED within a single Arrange component.
Vorzugsweise-Ausgestaltungen sind in den Unteransprüchen beschrieben.Preferably embodiments- are in the subclaims described.
So weist nach einer Weiterbildung der Erfindung die Fokuslinse eine erste Kammer auf, die mit einer ersten elektrisch leitenden Flüssigkeit gefüllt ist, wobei eine weitere elektrisch isolierende Flüssigkeit im Bereich einer isolierenden Wand der Kammer angeordnet ist und die beiden Flüssigkeiten nicht mischbar sind und unterschiedliche optische Indices aufweisen und dass eine veränderbare Spannung zwischen zwei getrennten Wänden der Kammer anlegbar ist, die auf die elektrisch leitende Flüssig keit einwirkt, so dass die Grenzfläche zwischen der ersten und der zweiten Flüssigkeit veränderbar ist.So has according to a development of the invention, the focus lens a first chamber, with a first electrically conductive liquid filled is, wherein another electrically insulating liquid in Area of an insulating wall of the chamber is arranged and the two liquids are immiscible and have different optical indices and that a changeable one Tension between two separate walls of the chamber can be applied, acting on the electrically conductive liquid keit, so that the interface changeable between the first and the second liquid is.
Vorzugsweise wird als erste Flüssigkeit eine dipolare Flüssigkeit, insbesondere Wasser oder eine Salzlösung, und als zweite Flüssigkeit ein Öl, insbesondere Silikonöl verwendet. Weiterhin vorzugsweise ist die fokussierbare Lampe derart ausgestaltet, dass die verstellbare Fokuslinse um eine optische Achse, auf der auch die LED angeordnet ist, rotationssymmetrisch ausgebildet ist. Mit einer solchen Ausbildung lässt sich eine homogene Lichtkegelausleuchtung mit optimierter Fokussierbarkeit erreichen.Preferably is considered the first liquid a dipolar liquid, especially water or a saline solution, and as a second liquid an oil, especially silicone oil used. Further preferably, the focusable lamp is such configured such that the adjustable focus lens about an optical axis, on which the LED is arranged, rotationally symmetrical is. With such a design, a homogeneous light cone illumination can be reach with optimized focusability.
Schließlich sind nach einer weiteren Ausgestaltung der Erfindung die Vorsatzoptik und die LED in einem geschlossenen Gehäuse mit einer durch eine Glasplatte abgedeckten Lichtaustrittsöffnung angeordnet.Finally are according to a further embodiment of the invention, the attachment optics and the LED in a closed housing with one through a glass plate covered light exit opening arranged.
Ein Ausführungsbeispiel der Erfindung ist in der einzigen Zeichnung dargestellt, die einen Querschnitt durch ein Gehäuse mit einer Vorsatzoptik und einer LED in einer Prinzipdarstellung zeigt.One embodiment the invention is shown in the single drawing, the one Cross section through a housing with an attachment optics and an LED in a schematic representation shows.
In
einem vorzugsweise in einer Draufsicht kreisrunden Gehäuse
Die
Spannung zwischen den Kontaktpunkten
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007004527U DE202007004527U1 (en) | 2007-03-28 | 2007-03-28 | Focus lamp e.g. torch light, has LED provided as light source and resolution optics with focus lens adjusted by creating and varying electrical fields, where lens has chamber filled with fluid e.g. water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007004527U DE202007004527U1 (en) | 2007-03-28 | 2007-03-28 | Focus lamp e.g. torch light, has LED provided as light source and resolution optics with focus lens adjusted by creating and varying electrical fields, where lens has chamber filled with fluid e.g. water |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007004527U1 true DE202007004527U1 (en) | 2007-06-14 |
Family
ID=38190470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202007004527U Expired - Lifetime DE202007004527U1 (en) | 2007-03-28 | 2007-03-28 | Focus lamp e.g. torch light, has LED provided as light source and resolution optics with focus lens adjusted by creating and varying electrical fields, where lens has chamber filled with fluid e.g. water |
Country Status (1)
Country | Link |
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DE (1) | DE202007004527U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2302295A1 (en) | 2009-09-24 | 2011-03-30 | Zumtobel Lighting GmbH | Assembly for emitting light with light source and optical element |
EP2594191A1 (en) * | 2011-11-15 | 2013-05-22 | Karl Storz GmbH & Co. KG | Illumination lens, observation device and method for generating an illumination light bundle |
DE202016100526U1 (en) | 2016-02-03 | 2016-04-21 | Zweibrüder Optoelectronics Gmbh & Co. Kg | Lamp with liquid lens |
DE102016101845A1 (en) | 2016-02-03 | 2017-08-03 | Zweibrüder Optoelectronics Gmbh & Co. Kg | Lamp with liquid lens |
-
2007
- 2007-03-28 DE DE202007004527U patent/DE202007004527U1/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2302295A1 (en) | 2009-09-24 | 2011-03-30 | Zumtobel Lighting GmbH | Assembly for emitting light with light source and optical element |
DE102009042906A1 (en) | 2009-09-24 | 2011-04-07 | Zumtobel Lighting Gmbh | Arrangement for emitting light with light source and optical element |
EP2594191A1 (en) * | 2011-11-15 | 2013-05-22 | Karl Storz GmbH & Co. KG | Illumination lens, observation device and method for generating an illumination light bundle |
US9717400B2 (en) | 2011-11-15 | 2017-08-01 | Karl Storz Gmbh & Co. Kg | Illuminating lens, observation device and method for producing an illuminating light bundle |
DE202016100526U1 (en) | 2016-02-03 | 2016-04-21 | Zweibrüder Optoelectronics Gmbh & Co. Kg | Lamp with liquid lens |
DE102016101845A1 (en) | 2016-02-03 | 2017-08-03 | Zweibrüder Optoelectronics Gmbh & Co. Kg | Lamp with liquid lens |
EP3203142A1 (en) | 2016-02-03 | 2017-08-09 | Zweibrüder Optoelectronics GmbH & Co. KG | Lamp with liquid lens |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20070719 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20101001 |