EP2314912B1 - LED lamp with infinitely adjustable emission angle - Google Patents

LED lamp with infinitely adjustable emission angle Download PDF

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Publication number
EP2314912B1
EP2314912B1 EP10006873.3A EP10006873A EP2314912B1 EP 2314912 B1 EP2314912 B1 EP 2314912B1 EP 10006873 A EP10006873 A EP 10006873A EP 2314912 B1 EP2314912 B1 EP 2314912B1
Authority
EP
European Patent Office
Prior art keywords
led
plate
lens
radiation angle
infinitely adjustable
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.)
Not-in-force
Application number
EP10006873.3A
Other languages
German (de)
French (fr)
Other versions
EP2314912A1 (en
Inventor
Christian Götz
Werner Spieß
Chiu Hua Jung
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.)
GOETZ, CHRISTIAN
Jung Chiu Hua
SPIESS, WERNER
Original Assignee
Individual
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Publication of EP2314912A1 publication Critical patent/EP2314912A1/en
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Publication of EP2314912B1 publication Critical patent/EP2314912B1/en
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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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/233—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • 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
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • 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
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F21V14/065—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors in portable lighting 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/34—Supporting elements displaceable along a guiding element
    • F21V21/35—Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/767—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • 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]

Definitions

  • the invention relates to an LED lamp with continuously adjustable radiation angle according to the preamble of claim 1.
  • Replacement lamps for AR 111 halogen lamps for example, which have 6 individual LEDs as standard, in front of which arranged on a lens array individual lenses are arranged. These replacement lamps are usually supplied with a defined beam angle in different stages (usually 10'Grad, 25 degrees, 30 degrees, 40 degrees), which can not be changed by the customer. An adjustment of the beam angle would be quite reasonable and desired by the customer.
  • the font WO 2004/034748 A1 discloses an LED-based modular lamp which employs superior optics to focus the light.
  • This optics consists of arranged in a plane single lenses, which are arranged corresponding to the individual LED and are arranged in a guide frame which engages with clips in corresponding receptacles on the lamp. It is a sliding one sliding arrangement to model the light beam can.
  • a disadvantage of this solution is that the optics is designed to be plugged only on the lamp, which on the one hand an exact focusing is difficult, since a linear force applied in the direction of the light axis for shifting the optics and thus this is difficult to set exactly. Furthermore, it can easily come to an unintentional adjustment of the desired values when a pressure is applied to this plugged optics, or if they accidentally removed from the lamp. There is thus a lack in the solution on the one hand on the exact adjustability and on the backup of the adjusted focus.
  • a Lampertsystem which also has a number of LED bulbs, which is associated with a lens array.
  • Lens array is in this case set on an adjustable to adjust the distance between the illuminant plane and lens plane, lying in the light axis of the lamp carrier, which acts centrally on the underside of the lens array and is also guided centrally through the illuminant array.
  • the change in the distance between the lens array and the illuminant array is achieved here by a rotation of this carrier and the lens arrays arranged therein.
  • the individual lenses guided out of the lens array are thus not supplied to the lighting means in a linear movement, but are themselves brought in rotation to the lighting means. It is intended in the application to be able to achieve effects similar to those of a disco lamp by changing the lenses in their position to the bulbs.
  • a flashlight in which the guidance of a lens plate away from a particular arrangement of multiple LEDs without the lens plate is changed in position to the individual LEDs.
  • a guide element guided parallel to the beam axis is guided in a corresponding receptacle of the lens plate, so that this lens plate is moved forward and back along this static guide member without rotation being possible.
  • the disadvantage here is that the entire front portion of the torch designed as a flashlight must be rotated to move the arranged in this front region of the lamp lens plate away from the LED board or on this.
  • this In order to prevent the co-rotation of this lens plate, this must firstly be connected to the front portion of the lamp rigidly with respect to the movement within the light axis, but on the other hand be able to perform a rotational movement within this front portion of the lamp yes, the front lamp element is rotated, the lens plate but within the lamp element moves forward or back, but not just rotated.
  • an LED lamp with continuously adjustable beam angle wherein a plurality of LEDs are arranged on a support plate and an adjustable in their distance to this support plate lens plate this is prefixed, with a simple and permanent setting of Radiation angle is structurally possible.
  • the lamp should allow a homogeneous light emission despite the use of multiple LEDs, in which the individual light sources are no longer recognizable.
  • a flashlight is to be created, which also allows a simple and permanent adjustment of the beam angle constructive while realizing a good heat dissipation of the LEDs
  • the first object is achieved with an LED lamp with the features of the main claim 1.
  • the dependent claims 2 to 8 have advantageous embodiments of the LED lamp to the subject.
  • the LED lamp according to the invention in this case has a combination of features whose interaction cause adjustability and a luminous power, which comes very close to the example of an original AR-111 halogen lamp.
  • a lamp with 9 LEDs is proposed, which are arranged on an LED carrier plate in a plane. Associated with these LEDs is provided in a parallel plane, a lens array in the form of a Fresnel lens array, as this one Even light emission is achieved even when using a large number of individual LEDs on a circuit board.
  • the individual LEDs in each case a Fresnel lens of the array is assigned directly independent of each selected. Angle.
  • the Fresnellinsenarray is guided adjustably in its distance from the LED level, this is achieved by a special mechanism consisting of a lens plate supporting retaining ring, which is guided by at least two vertically engaging in this guide pin so that only a vertical displacement of this lens-bearing retaining ring is possible.
  • the retaining ring enclosing a guide ring with internal thread is now arranged closed around this retaining ring, the retaining ring engages with its outer contour in the steeply formed guide thread of the guide ring, and thus upon rotation of the guide ring in an outer fixing ring of the retaining ring with the lens a vertical displacement to the LED Board towards or away from this, depending on the direction of rotation of the guide ring, takes place, wherein the respective LEDs associated Fresnel lenses of the array maintain their position on the LEDs, so the lens array does not rotate.
  • the distance between the Fresnel lens array and LED support plate is selected so that radiation angles between about 10 ° and 60 ° are infinitely adjustable. These are radiation angles, the application of which is frequent, so that the LED lamp according to the invention in a design as a radiator can replace various types of halogen radiators, which have hitherto only been offered with a fixed radiation angle.
  • defined stages of the emission angles between approximately 10 ° and 60 ° are indicated by markings on the guide ring.
  • markings on the guide ring In the made by turning the guide ring change the beam angle of this adjusted by reading the markers and subsequently easily controlled.
  • defined stages of the emission angles between approximately 10 ° and 60 ° can be predetermined by latching positions of the guide ring.
  • the guide ring engages in the rotation, for example, with corresponding projections in recesses of the retaining ring, wherein the Vetiefept each indicate a defined stage of the radiation angle.
  • the adjustability remains stepless, the detent positions serve only for orientation and securing the once set position.
  • One possible design provides for an approximately half-shell-shaped heat sink on which the LED board rests. It is a flat and aesthetic design that allow use of the spotlight in already known form.
  • Another design has an elongated approximately cylindrical heat sink, in which the cooling fins are arranged one above the other in the longitudinal direction of the radiator.
  • This design is characterized by particularly good cooling of the LED board, which can therefore also have a greater number and density of LEDs.
  • a good protection of this wiring is realized.
  • FIG. 1 shows an embodiment of the invention in the form of an LED spot, which has the structure of the invention.
  • a representation form is selected in which the individual structural components are shown one above the other in unassembled form. In the following, the components are described from top to bottom.
  • the upper component is the retaining ring 1, on whose outer surface at least one circumferential projection can be seen, which engages in the internal thread of the guide ring 2.
  • the guide ring 2 is shown below the retaining ring 1 and can be seen in a perspective view of the quite steep internal thread.
  • This guide ring 2 is seated in a fixing ring 3, in which the guide ring 2 engages positively.
  • the Fresnel lens array 4 is shown, which is mounted in mounted form on the underside of the retaining ring 1 in the lens ring 5, which is shown below the Fersnellinsenarrays 4.
  • the lens ring 5 in this case has two oppositely arranged holes 6, in which two below of the lens ring 5 shown vertical guide pin 7 engage to secure the only vertical displacement of the lens ring 5 with attached retaining ring 1. Below this guide pin 7, the LED board 8 is shown, are arranged on the in the illustrated embodiment, nine individual LEDs 16 at a uniform distance from each other.
  • This LED board 8 is in turn placed on an LED board holding plate 10, which in turn is held in a mounting ring 11. Finally, these assembled components are inserted into a heat sink 12 to dissipate the thermal energy released during the Lichabstrahlung.
  • FIGS. 2 and 3 Now, a section through the LED spot according to the invention is shown, which is a design that is composed of the components described above.
  • the uppermost component here is the retaining ring 1, which has on its underside the Fresnel lens array 4, which is held in the lens ring. It is clearly in FIG. 2 recognizable that the retaining ring 1 is applied to the lens body 4 at an upper stop of the guide ring 2, and thus the maximum distance between the LED board 8 and the Fresnel lens array 4 is taken.
  • the steeply extending internal thread of the guide ring 2 can be seen below the Fresnel lens array 4, the steeply extending internal thread of the guide ring 2 can be seen. Left and right of the retaining ring 1 are also the vertically arranged guide pin 7 can be seen, which prevents rotation of the arranged on the Fresnel lens array 4 single lenses with respect to the underlying individual LED's 16.
  • the guide ring 2 is arranged so that it can be easily rotated with your fingers. He is in this case held in the below fixing ring 3, which makes the connection between the heat sink 12 and the guide ring 2. On the underside of the LED spot, the connection contacts 15 to the power source, mounting rivets 14 and a cover plate 13 are also shown.
  • FIGS. 4 shows another design, in which a cylindrically constructed heat sink 12 is used with superposed cooling fins with the advantages already described. Within the heat sink extends vertically through a continuous bore, which serves to connect the LED board 8.
  • FIG. 5 shows a flashlight according to the invention, which has an LED lamp according to the invention as the light source, wherein between the battery compartment of the flashlight and the LED support plate 8, the heat sink 12 is arranged exposed. In this way, it is ensured that the heat generated during operation can be dissipated easily and that the lamp can not overheat.
  • FIG. 5 illustrates here that this embodiment of the lamp as a flashlight with a rod-shaped battery compartment has the basic structural components that allow the adjustment of the radiation angle, namely the retaining ring 1, on which the lens array 4 is fixed and the outer guide ring 2 in its distance to LED support plate 8 is variable.
  • the number of LEDs 16 on the support plate 8 is variable depending on the application and size of the flashlight.
  • FIGS. 6 and 7 show a different design, in which case the actual lamp has the described structure. Again, in this design, the lens array 4 of the Fresnel lenses without rotation relative to the LEDs 16 can be adjusted. This is especially the case FIG. 6 in which the components are shown above each other.
  • FIGS. 8-15 represent further designs of the LED lamp according to the invention, wherein the FIGS. 8-11 a design as a replacement for lamp designs of the PAR30 and the headlights Figures 12-15 represent a LED lamp according to the invention as a replacement of the headlights PAR38.
  • the basic structure also corresponds to the previously described LED lamps in these designs.
  • the displacement is effected by the rotational movement on the frontal guide ring 2.
  • the now present design also has an LED driver 19 which is arranged in an LED driver housing 20 below the heat sink 12.
  • a silicone ring 17 is also arranged as a conclusion at the upper end of the heat sink 12, which is held in corresponding receiving recesses at the upper ends of the cooling fins.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

Die Erfindung betrifft eine LED-Lampe mit stufenlos einstellbarem Abstrahlwinkel gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to an LED lamp with continuously adjustable radiation angle according to the preamble of claim 1.

Aufgrund längerer Standzeiten sowie deutlich reduziertem Energieverbrauch konzentrieren sich Entwicklungen im Bereich der Leuchtmittel darauf, herkömmliche Leuchtmittel durch LED-Austauschlampen zu ersetzen.Due to longer service life and significantly reduced energy consumption, developments in the field of light bulbs focus on replacing conventional bulbs with LED replacement bulbs.

Es sind hierbei beispielsweise Austauschlampen für AR 111 Halogenlampen bekannt, die standardmäßig 6 Einzel-LED's aufweisen, vor denen auf einem Linsenarray angeordnete Einzellinsen angeordnet sind. Es werden diese Austauschlampen in der Regel mit einem definierten Abstrahlwinkel in unterschiedlichen Stufen (üblicherweise 10'Grad, 25 Grad, 30 Grad, 40 Grad) geliefert, der vom Kunden nicht verändert werden kann. Eine Anpassung des Abstrahlwinkels wäre aber durchaus sinnvoll und beim Kunden gewünscht.Replacement lamps for AR 111 halogen lamps, for example, which have 6 individual LEDs as standard, in front of which arranged on a lens array individual lenses are arranged. These replacement lamps are usually supplied with a defined beam angle in different stages (usually 10'Grad, 25 degrees, 30 degrees, 40 degrees), which can not be changed by the customer. An adjustment of the beam angle would be quite reasonable and desired by the customer.

Aus dem Stand der Technik sind bereits Lösungen bekannt, bei denen die Veränderung des Abstrahlwinkels eines mit LED's bestückten Stahlers über eine Veränderung des Abstandes zwischen der LED-Ebene und der Linsenebene verwirklicht wird.Solutions are already known from the prior art, in which the change in the radiation angle of a equipped with LEDs steel is realized via a change in the distance between the LED level and the lens plane.

Die Schrift WO 2004/034748 A1 offenbart eine modulare Lampe auf LED-Basis, bei der eine vorgesetzte Optik zur Fokussierung des Lichts verwendet wird. Diese Optik besteht aus in einer Ebene angeordneten Einzellinsen, die mit den einzelnen LED korrespondierend angeordnet sind und in einem Führungsrahmen angeordnet sind, der mit Klips in entsprechende Aufnahmen an der Lampe eingreift. Es handelt sich hierbei um eine gleitend verschiebbare Anordnung, um den Lichtstrahl modellieren zu können.The font WO 2004/034748 A1 discloses an LED-based modular lamp which employs superior optics to focus the light. This optics consists of arranged in a plane single lenses, which are arranged corresponding to the individual LED and are arranged in a guide frame which engages with clips in corresponding receptacles on the lamp. It is a sliding one sliding arrangement to model the light beam can.

Nachteilig bei dieser Lösung ist allerdings, dass die Optik lediglich auf die Lampe aufsteckbar ausgebildet ist, wodurch zum einen eine exakte Fokussierung schwierig ist, da eine linear wirkende Kraft in Richtung der Lichtachse zur Verschiebung der Optik aufgebracht und somit diese schwer genau einzustellen ist. Desweiteren kann es leicht zu einem unbeabsichtigten Verstellen der gewünschten Werte kommen, wenn ein Druck auf diese aufgesteckte Optik ausgeübt wird, bzw. wenn diese sich unbeabsichtigt von der Lampe entfernt. Es mangelt somit bei der Lösung zum einen an der genauen Justierbarkeit als auch an der Sicherung der eingestellten Fokussierung.A disadvantage of this solution, however, is that the optics is designed to be plugged only on the lamp, which on the one hand an exact focusing is difficult, since a linear force applied in the direction of the light axis for shifting the optics and thus this is difficult to set exactly. Furthermore, it can easily come to an unintentional adjustment of the desired values when a pressure is applied to this plugged optics, or if they accidentally removed from the lamp. There is thus a lack in the solution on the one hand on the exact adjustability and on the backup of the adjusted focus.

Eine weitere relevante Veröffentlichung ist die WO 2007/007271 A2 , in der ein Lampertsystem offenbart ist, welches ebenfalls über eine Reihe von LED-Leuchtmitteln verfügt, dem ein Linsenarray zugeordnet ist. Dieses. Linsenarray wird hierbei auf einer zur Einstellung der Distanz zwischen Leuchtmittelebene und Linsenebene verstellbaren, in der Lichtachse der Lampe liegenden Träger eingestellt, der zentral an der Unterseite des Linsenarray angreift und ebenfalls zentral durch das Leuchtmittelarray geführt ist. Die Veränderung des Abstandes zwischen dem Linsenarray und Leuchtmittelarray wird hierbei durch eine Rotation dieses Trägers und der darin angeordneten Linsenarrays erreicht.Another relevant publication is the WO 2007/007271 A2 in which a Lampertsystem is disclosed, which also has a number of LED bulbs, which is associated with a lens array. This. Lens array is in this case set on an adjustable to adjust the distance between the illuminant plane and lens plane, lying in the light axis of the lamp carrier, which acts centrally on the underside of the lens array and is also guided centrally through the illuminant array. The change in the distance between the lens array and the illuminant array is achieved here by a rotation of this carrier and the lens arrays arranged therein.

Hierbei ist nachteilig, dass somit die einzelnen aus dem Linsenarray geführten Linsen nicht in einer linearen Bewegung auf die Leuchtmittel zugeführt werden, sondern selbst rotierend an die Leuchtmittel herangeführt werden. Es ist dies in der Anmeldung beabsichtigt, um durch die Veränderung der Linsen in ihrer Position zu den Leuchtmitteln Effekte erzielen zu können, die denen einer Discolampe ähneln.In this case, it is disadvantageous that the individual lenses guided out of the lens array are thus not supplied to the lighting means in a linear movement, but are themselves brought in rotation to the lighting means. It is intended in the application to be able to achieve effects similar to those of a disco lamp by changing the lenses in their position to the bulbs.

Aus der Veröffentlichung US 2004/0190264 A1 ist eine Taschenlampe bekannt, bei der die Führung einer Linsenplatte weg von einer bestimmten Anordnung mehrerer LEDs erfolgt, ohne das hierbei die Linsenplatte in ihrer Position zu den einzelnen LEDs verändert wird. Es wird hierfür ein parallel zur Strahlachse geführtes Führungselement in einer entsprechenden Aufnahme der Linsenplatte geführt, so dass diese Linsenplatte an diesem statischen Führungsglied entlang nach vorne und zurück bewegt wird, ohne dass eine Rotation möglich ist.From the publication US 2004/0190264 A1 For example, a flashlight is known in which the guidance of a lens plate away from a particular arrangement of multiple LEDs without the lens plate is changed in position to the individual LEDs. For this purpose, a guide element guided parallel to the beam axis is guided in a corresponding receptacle of the lens plate, so that this lens plate is moved forward and back along this static guide member without rotation being possible.

Nachteilig hierbei ist, daß der gesamte vordere Bereich der als Taschenlampe ausgebildeten Lichtquelle gedreht werden muss, um die in diesem vorderen Bereich der Lampe angeordnete Linsenplatte von der LED-Platine weg oder auf diese zu zu bewegen. Um hierbei das Mitdrehen dieser Linsenplatte zu verhindern, muss diese zum einen was die Bewegung innerhalb der Lichtachse anbetrifft starr mit dem vorderen Bereich der Lampe verbunden sein, allerdings zum anderen in der Lage sein, eine Rotationsbewegung innerhalb dieses vorderen Abschnitts der Lampe zu vollziehen, da ja das vordere Lampenelement gedreht wird, die Linsenplatte aber innerhalb des Lampenelementes nach vorne oder zurück bewegt, aber eben nicht mitgedreht werden soll.The disadvantage here is that the entire front portion of the torch designed as a flashlight must be rotated to move the arranged in this front region of the lamp lens plate away from the LED board or on this. In order to prevent the co-rotation of this lens plate, this must firstly be connected to the front portion of the lamp rigidly with respect to the movement within the light axis, but on the other hand be able to perform a rotational movement within this front portion of the lamp yes, the front lamp element is rotated, the lens plate but within the lamp element moves forward or back, but not just rotated.

Aus der US 2003/117797 A1 ist ein LED-Spot mit verstellbarer Linse offenbart, wobei die Verwendung einer Fresnelllinse angesprochen wird. Es sind unterschiedliche Wege der Verstellbarkeit angesprochen, wobei allerdings die Linse bei dieser Verstellung vor den Leds rotiert. Daher ist hier nachteiligerweise eine stufenlose Einstellbarkeit nicht möglich, da der Linsenhalter mit Fresnelllinse immer wieder in die richtige Position über die LEDs gebracht werden muss, um überhaupt eine Lichtabstrahlung aus der Leuchte zu erhalten. Insofern handelt es sich hierbei um eine vergleichsweise unkomfortable Konstruktion ohne stufenlose Verstellmöglichkeit.From the US 2003/117797 A1 discloses an LED spotlight with adjustable lens, wherein the use of a Fresnel lens is addressed. There are different ways of adjustability addressed, although the lens rotates in this adjustment in front of the Leds. Therefore, a stepless adjustability is disadvantageously not possible here, since the lens holder with Fresnel lens must always be brought into the correct position on the LEDs in order to obtain any light emission from the lamp. In this respect, this is a relatively uncomfortable construction without continuous adjustment.

Aufgabe der vorliegenden Erfindung ist es vor diesem Hintergrund, eine LED-Lampe mit stufenlos einstellbarem Abstrahlwinkel zu schaffen, wobei mehrere LEDs auf einer Trägerplatte angeordnet sind und eine in ihrer Distanz zu dieser Trägerplatte verstellbare Linsenplatte dieser vorangestellt ist, wobei eine einfache und dauerhafte Einstellung des Abstrahlwinkels konstruktiv ermöglicht wird. Weiterhin soll die Lampe trotz der Verwendung mehrerer LEDs eine homogene Lichtabstrahlung ermöglichen, bei der die einzelnen Lichtquellen nicht mehr erkennbar sind.Object of the present invention, it is against this background to provide an LED lamp with continuously adjustable beam angle, wherein a plurality of LEDs are arranged on a support plate and an adjustable in their distance to this support plate lens plate this is prefixed, with a simple and permanent setting of Radiation angle is structurally possible. Furthermore, the lamp should allow a homogeneous light emission despite the use of multiple LEDs, in which the individual light sources are no longer recognizable.

Weiterhin soll eine Taschenlampe geschaffen werden, die ebenfalls eine einfache und dauerhafte Einstellung des Abstrahlwinkels konstruktiv ermöglicht und gleichzeitig eine gute Wärmeableitung der LEDs realisiertFurthermore, a flashlight is to be created, which also allows a simple and permanent adjustment of the beam angle constructive while realizing a good heat dissipation of the LEDs

Gelöst wird die erste Aufgabe mit einer LED-Lampe mit den Merkmalen des Hauptanspruchs 1. Die Unteransprüche 2 bis 8 haben hierbei vorteilhafte Ausgestaltungen der LED-Lampe zum Gegenstand.The first object is achieved with an LED lamp with the features of the main claim 1. The dependent claims 2 to 8 have advantageous embodiments of the LED lamp to the subject.

Die Aufgabe einer Taschenlampe wird durch Anspruch 9 sowie die Unteransprüche 10 und 11 gelöst.The object of a flashlight is achieved by claim 9 and the dependent claims 10 and 11.

Die erfindungsgemäße LED-Lampe weist hierbei eine Kombination von Merkmalen auf, deren Zusammenwirken eine Einstellbarkeit und eine Leuchtleistung bewirken, die der beispielsweise einer Original AR-111 Halogenlampe sehr nahe kommt.The LED lamp according to the invention in this case has a combination of features whose interaction cause adjustability and a luminous power, which comes very close to the example of an original AR-111 halogen lamp.

Es wird hierfür in einer zweckmäßigen Ausführungsform eine Lampe mit 9 LED's vorgeschlagen, die auf einer LED-Trägerplatte in einer Ebene angeordnet sind. Diesen LED's zugeordnet ist in einer parallelen Ebene ein Linsenarray in Form von einem Fresnel-Linsenarray vorgesehen, da dieses eine gleichmäßige Lichtabstrahlung realisiert auch bei Verwendung einer Vielzahl einzelner LEDs auf einer Platine. Den einzelnen LEDs ist hierbei jeweils eine Fresnellinse des Arrays direkt zugeordnet unabhängig von jeweils gewählter. Abstrahlwinkel.For this purpose, in a suitable embodiment, a lamp with 9 LEDs is proposed, which are arranged on an LED carrier plate in a plane. Associated with these LEDs is provided in a parallel plane, a lens array in the form of a Fresnel lens array, as this one Even light emission is achieved even when using a large number of individual LEDs on a circuit board. The individual LEDs in each case a Fresnel lens of the array is assigned directly independent of each selected. Angle.

Hierfür ist das Fresnellinsenarray in seiner Distanz zur LED-Ebene verstellbar geführt, Erreicht wird dies über eine spezielle Mechanik, die aus einem die Linsenplatte tragenden Haltering besteht, der durch zumindest zwei vertikal in diesen eingreifende Führungsbolzen derart geführt wird, das lediglich eine vertikale Verschiebung dieses linsentragenden Halterings möglich ist.For this purpose, the Fresnellinsenarray is guided adjustably in its distance from the LED level, this is achieved by a special mechanism consisting of a lens plate supporting retaining ring, which is guided by at least two vertically engaging in this guide pin so that only a vertical displacement of this lens-bearing retaining ring is possible.

Den Haltering umschließend ist nun ein Führungsring mit Innengewinde um diesen Haltering geschlossen angeordnet, wobei der Haltering mit seiner Aussenkontur in das steil ausgebildete Führungsgewinde des Führungsrings eingreift, und somit bei Drehung des Führungsrings in einem äusseren Fixierungsring der Haltering mit der Linse eine vertikale Verschiebung zur LED-Platine hin oder von dieser weg, je nach Drehrichtung des Führungsrings, vollzieht, wobei die den jeweiligen LEDs zugeordneten Fresnellinsen des Arrays ihre Position über den LEDs beibehalten, also das Linsenarray keine Drehbewegung vollzieht.The retaining ring enclosing a guide ring with internal thread is now arranged closed around this retaining ring, the retaining ring engages with its outer contour in the steeply formed guide thread of the guide ring, and thus upon rotation of the guide ring in an outer fixing ring of the retaining ring with the lens a vertical displacement to the LED Board towards or away from this, depending on the direction of rotation of the guide ring, takes place, wherein the respective LEDs associated Fresnel lenses of the array maintain their position on the LEDs, so the lens array does not rotate.

Vorteilhafterweise ist die Distanz zwischen dem Fresnel-Linsenarray und LED-Trägerplatte so gewählt, dass Abstrahlwinkel zwischen etwa 10° und 60° stufenlos einstellbar sind. Dies sind Abstrahlwinkel, deren Anwendung häufig ist, so dass die erfindungsgemäße LED-Lampe in einer Bauform als Strahler verschiedene Bauformen von Halogenstrahlern ersetzen kann, die bislang nur mit einem festen Abstrahlwinkel, angeboten werden.Advantageously, the distance between the Fresnel lens array and LED support plate is selected so that radiation angles between about 10 ° and 60 ° are infinitely adjustable. These are radiation angles, the application of which is frequent, so that the LED lamp according to the invention in a design as a radiator can replace various types of halogen radiators, which have hitherto only been offered with a fixed radiation angle.

Es ist hierbei zweckmäßig, dass definierte Stufen der Abstrahlwinkel zwischen etwa 10° und 60° durch Markierungen am Führungsring angezeigt werden. So kann bei der durch Drehen des Führungsrings vorgenommenen Änderung des Abstrahlwinkel dieser durch Ablesen der Markierungen genau justiert und nachfolgend leicht kontrolliert werden. Ergänzend oder alternativ können definierte Stufen der Abstrahlwinkel zwischen etwa 10° und 60.° durch Rastpositionen des Führungsrings vorgegeben sein.It is expedient here that defined stages of the emission angles between approximately 10 ° and 60 ° are indicated by markings on the guide ring. Thus, in the made by turning the guide ring change the beam angle of this adjusted by reading the markers and subsequently easily controlled. In addition or as an alternative, defined stages of the emission angles between approximately 10 ° and 60 ° can be predetermined by latching positions of the guide ring.

Der Führungsring greift hierbei bei der Drehung beispielsweise mit entsprechenden Vorsprüngen in Vertiefungen des Halterings ein, wobei die Vetiefungen jeweils eine definierte Stufe des Abstrahlwinkels anzeigen. Die Verstellbarkeit bleibt hierbei stufenlos, die Rastpositionen dienen hierbei lediglich der Orientierung sowie der Sicherung der einmal eingestellten Position.The guide ring engages in the rotation, for example, with corresponding projections in recesses of the retaining ring, wherein the Vetiefungen each indicate a defined stage of the radiation angle. The adjustability remains stepless, the detent positions serve only for orientation and securing the once set position.

Es sind hierbei bei den nöglichen Strahlerbauformen unterschiedliche Ausbildungen des Kühlkörpers möglich.In this case, different designs of the heat sink are possible with the possible lamp designs.

Eine mögliche Bauform sieht einen in etwa halbschalenförmigen Kühlkörper vor, auf dem die LED-Platine aufsitzt. Es handelt sich um eine flache und ästhetische Bauform, die eine Verwendung der Strahler in bereits bekannter Form ermöglichen.One possible design provides for an approximately half-shell-shaped heat sink on which the LED board rests. It is a flat and aesthetic design that allow use of the spotlight in already known form.

Eine andere Bauform weist einen länglichen in etwa zylindrischen Kühlkörper auf, bei dem die Kühlrippen in Längsrichtung des Strahlers übereinander angeordnet sind. Diese Bauform zeichnet sich durch besonders gute Kühlung der LED-Platine aus, die daher auch eine größere Anzahl und Dichte von LEDs aufweisen kann. Vorteilhafterweise erfolgt hierbei die Verbindung zu einer Spannungsquelle sowie möglichen elektronischen Bauteilen mittels einer den Kühlkörper in Längsrichtung durchdringenden Bohrung. Somit wird auch ein guter Schutz dieser Verkabelung verwirklicht.Another design has an elongated approximately cylindrical heat sink, in which the cooling fins are arranged one above the other in the longitudinal direction of the radiator. This design is characterized by particularly good cooling of the LED board, which can therefore also have a greater number and density of LEDs. Advantageously, in this case, the connection to a voltage source and possible electronic components by means of a heat sink in the longitudinal direction penetrating bore. Thus, a good protection of this wiring is realized.

Durch die stabförmige Ausbildung dieser Bauform ist diese insbesondere gut geeignet in mobilen Leuchten Verwendung zu finden, beispielsweise in einer Taschenlampe. Diese kann sich durch eine starke Lichtleistung bei guter Kühlung und guter Kapselbarkeit auszeichnen, da eine sehr kompakte Bauweise erreicht wird, die gut mit einem Lampengehäuse zur Aufnahme von Batterien verbunden werden kann.Due to the rod-shaped design of this design, this is particularly well suited to find use in mobile lights, for example in a flashlight. This can be characterized by a strong light output with good cooling and good encapsulation, since a very compact design is achieved, which can be well connected to a lamp housing for receiving batteries.

Nachfolgend wird die Erfindung anhand von Zeichnungen näher beschrieben.The invention will be described in more detail with reference to drawings.

Figur 1 zeigt hierbei eine Anwendungsform der Erfindung in Form eines LED-Spots, der den erfindungsgemäßen Aufbau aufweist. Es ist hierbei eine Darstellungsform gewählt, bei der die einzelnen baulichen Bestandteile übereinander in nicht montierter Form dargestellt sind. Im Folgenden werden die Bauteile von oben nach unten beschrieben. FIG. 1 shows an embodiment of the invention in the form of an LED spot, which has the structure of the invention. In this case, a representation form is selected in which the individual structural components are shown one above the other in unassembled form. In the following, the components are described from top to bottom.

Das obere Bauteil ist der Haltering 1, an dessen Aussenfläche zumindest ein umlaufender Vorsprung erkennbar ist, der in das Innengewinde des Führungsrings 2 eingreift. Der Führungsring 2 ist unter dem Haltering 1 dargestellt und lässt in perspektivischer Ansicht das recht steil ausgebildete Innengewinde erkennen. Dieser Führungsring 2 sitzt in einem Fixierungsring 3, in den der Führungsring 2 formschlüssig eingreift. Unter dem Fixierungsring 3 ist das Fresnel-Linsenarray 4 dargestellt, die in montierter Form an der Unterseite des Halterings 1 im Linsenring 5 befestigt ist, der unterhalb des Fersnellinsenarrays 4 dargestellt ist.The upper component is the retaining ring 1, on whose outer surface at least one circumferential projection can be seen, which engages in the internal thread of the guide ring 2. The guide ring 2 is shown below the retaining ring 1 and can be seen in a perspective view of the quite steep internal thread. This guide ring 2 is seated in a fixing ring 3, in which the guide ring 2 engages positively. Under the fixing ring 3, the Fresnel lens array 4 is shown, which is mounted in mounted form on the underside of the retaining ring 1 in the lens ring 5, which is shown below the Fersnellinsenarrays 4.

Der Linsenring 5 weist hierbei zwei sich gegenüberliegend angeordnete Bohrungen 6 auf, in welche zwei unterhalb des Linsenrings 5 dargestellte vertikale Führungsbolzen 7 eingreifen, um die lediglich vertikale Verschiebung des Linsenrings 5 mit aufgesetztem Haltering 1 zu sichern. Unterhalb dieser Führungsbolzen 7 ist die LED-Platine 8 dargestellt, auf der in der dargestellten Ausführungsform neun Einzel-LEDs 16 in gleichmäßigem Abstand zueinander angeordnet sind.The lens ring 5 in this case has two oppositely arranged holes 6, in which two below of the lens ring 5 shown vertical guide pin 7 engage to secure the only vertical displacement of the lens ring 5 with attached retaining ring 1. Below this guide pin 7, the LED board 8 is shown, are arranged on the in the illustrated embodiment, nine individual LEDs 16 at a uniform distance from each other.

Diese LED-Platine 8 ist wiederum auf einer LED-Platinenhalteplatte 10 aufgesetzt, die wiederum in einem Befestigungsring 11 gehalten wird. Schließlich werden diese zusammengefügten Bauteile in einen Kühlkörper 12 eingesetzt, um die bei der Lichabstrahlung frei werdende Wärmeenergie abzuführen.This LED board 8 is in turn placed on an LED board holding plate 10, which in turn is held in a mounting ring 11. Finally, these assembled components are inserted into a heat sink 12 to dissipate the thermal energy released during the Lichabstrahlung.

In den Figuren 2 und 3 ist nun ein Schnitt durch den erfindungsgemäßen LED-Spot dargestellt, wobei es sich hierbei um eine Bauform handelt, die aus den zuvor beschriebenen Bauelementen zusammengesetzt ist. Das oberste Bauteil ist hierbei der Haltering 1, der auf seiner Unterseite das Fresnel-Linsenarray 4 aufweist, die im Linsenring gehalten ist. Es ist deutlich in Figur 2 erkennbar, dass der Haltering 1 mit dem Linsenkörper 4 an einem oberen Anschlag des Führungsrings 2 anliegt, und somit der größtmögliche Abstand zwischen der LED-Platine 8 und dem Fresnel-Linsenarray 4 eingenommen ist.In the FIGS. 2 and 3 Now, a section through the LED spot according to the invention is shown, which is a design that is composed of the components described above. The uppermost component here is the retaining ring 1, which has on its underside the Fresnel lens array 4, which is held in the lens ring. It is clearly in FIG. 2 recognizable that the retaining ring 1 is applied to the lens body 4 at an upper stop of the guide ring 2, and thus the maximum distance between the LED board 8 and the Fresnel lens array 4 is taken.

Unterhalb des Fresnel-Linsenarrays 4 ist das steil verlaufende Innengewinde des Führungsrings 2 erkennbar. Links und rechts des Halterings 1 sind zudem die vertikal angeordneten Führungsbolzen 7 zu erkennen, die ein Verdrehen der auf dem Fresnel-Linsenarray 4 angeordneten Einzellinsen gegenüber den darunter angeordneten Einzel-LED's 16 verhindert.Below the Fresnel lens array 4, the steeply extending internal thread of the guide ring 2 can be seen. Left and right of the retaining ring 1 are also the vertically arranged guide pin 7 can be seen, which prevents rotation of the arranged on the Fresnel lens array 4 single lenses with respect to the underlying individual LED's 16.

Der Führungsring 2 ist hierbei so angeordnet, dass dieser leicht mit den Fingern gedreht werden kann. Er ist hierbei in dem unterhalb angeordneten Fixierungsring 3 gehalten, der die Verbindung zwischen dem Kühlkörper 12 und dem Führungsring 2 herstellt. An der Unterseite des LED-Spots sind zudem die Anschlusskontakte 15 zur Stromquelle, Befestigungnieten 14 sowie eine Abschlussplatte 13 dargestellt.The guide ring 2 is arranged so that it can be easily rotated with your fingers. He is in this case held in the below fixing ring 3, which makes the connection between the heat sink 12 and the guide ring 2. On the underside of the LED spot, the connection contacts 15 to the power source, mounting rivets 14 and a cover plate 13 are also shown.

In Figur 3 wiederum ist derselbe LED-Spot dargestellt, allerdings nun mit der Fresnellinse 4 in ihrer den LED's 16 nächsten Position. Durch Drehen des Führungsrings 2 wurde hierbei der Haltering 5 des Fresnel-Linsenarrays 4 vertikal nach unten auf die LED-Platine 8 hin zubewegt, wodurch nun eine Veränderung des Abstrahlwinkels bewirkt wurde. Ansonsten trifft für diese Zeichnung das zuvor gesagte im Bezug auf die Anordnung der baulichen Komponenten zueinander zu.In FIG. 3 again, the same LED spot is shown, but now with the Fresnel lens 4 in their LED's 16 next position. By turning the guide ring 2 in this case the retaining ring 5 of the Fresnel lens array 4 was moved vertically downwards on the LED board 8, whereby now a change in the emission angle has been effected. Otherwise applies to this drawing to the previously said with respect to the arrangement of the structural components to each other.

Die Figuren 4 zeigt eine andere Bauform, bei der ein zylindrisch aufgebauter Kühlkörper 12 mit übereinander angeordneten Kühlrippen verwendet wird mit den bereits beschriebenen Vorteilen. Innerhalb des Kühlkörpers verläuft vertikal eine durchgängige Bohrung, die dem Anschluß der LED-Platine 8 dient.The FIGS. 4 shows another design, in which a cylindrically constructed heat sink 12 is used with superposed cooling fins with the advantages already described. Within the heat sink extends vertically through a continuous bore, which serves to connect the LED board 8.

Figur 5 zeigt eine erfindungsgemäße Taschenlampe, die als Leuchtmittel eine LED-Lampe nach der Erfindung aufweist, wobei zwischen dem Batteriefach der Taschenlampe und der LED-Trägerplatte 8 der Kühlkörper 12 freiliegend angeordnet ist. Auf diese weise ist sichergestellt, dass die im Betrieb entstehende Wärme leicht abgeführt werden und es nicht zu einer Überhitzung der Lampe kommen kann. FIG. 5 shows a flashlight according to the invention, which has an LED lamp according to the invention as the light source, wherein between the battery compartment of the flashlight and the LED support plate 8, the heat sink 12 is arranged exposed. In this way, it is ensured that the heat generated during operation can be dissipated easily and that the lamp can not overheat.

Figur 5 verdeutlicht hierbei, daß auch diese Ausführungsform der Lampe als Taschenlampe mit einem stabförmigen Batteriefach die grundlegenden baulichen Komponenten aufweist, die die Verstellung des Abstrahlwinkels ermöglichen, nämlich den Haltering 1, an dem das Linsenarray 4 befestigt ist und der durch den äußeren Führungsring 2 in seiner Distanz zur LED-Trägerplatte 8 variabel ist. Die Anzahl der LEDs 16 auf der Trägerplatte 8 ist hierbei variabel je nach Anwendungsbereich und Baugröße der Taschenlampe. FIG. 5 illustrates here that this embodiment of the lamp as a flashlight with a rod-shaped battery compartment has the basic structural components that allow the adjustment of the radiation angle, namely the retaining ring 1, on which the lens array 4 is fixed and the outer guide ring 2 in its distance to LED support plate 8 is variable. The number of LEDs 16 on the support plate 8 is variable depending on the application and size of the flashlight.

Die Figuren 6 und 7 zeigen eine andere Bauform, wobei auch hier die eigentliche Lampe den beschriebenen Aufbau aufweist. Auch hier kann bei dieser Bauform das Linsenarray 4 der Fresnellinsen ohne eine Verdrehung gegenüber den LEDs 16 verstellt werden. Dies geht insbesondere aus Figur 6 hervor, in der die Bauteile übereinander dargestellt sind.The FIGS. 6 and 7 show a different design, in which case the actual lamp has the described structure. Again, in this design, the lens array 4 of the Fresnel lenses without rotation relative to the LEDs 16 can be adjusted. This is especially the case FIG. 6 in which the components are shown above each other.

Die Figuren 8 - 15 stellen weitere Bauformen der erfindungsgemäßen LED-Lampe dar, wobei die Figuren 8 - 11 eine Bauform als Ersatz für Lampenbauformen der Scheinwerfer PAR30 und die Figuren 12-15 eine erfindungsgemäße LED-Lampe als Ersatz der Scheinwerfer PAR38 darstellen. Der grundsätzliche Aufbau entspricht auch bei diesen Bauformen den zuvor beschriebenen LED-Lampen.The FIGS. 8-15 represent further designs of the LED lamp according to the invention, wherein the FIGS. 8-11 a design as a replacement for lamp designs of the PAR30 and the headlights Figures 12-15 represent a LED lamp according to the invention as a replacement of the headlights PAR38. The basic structure also corresponds to the previously described LED lamps in these designs.

Auch hier haben wir eine Verstellbarkeit der Linsenplatte 4, die im Haltering 1 geführt ist. Hierbei wird Distanz der Linseplatte 4 zu der LED-Trägerplatte 8 mittels zweier seitlicher vertikaler Führungen 7 derart gestaltet, dass die Zuordnung der einzelnen Linsen auf der Linsenplatte 4 zu den LEDs auch bei der Verschiebung der Linsenplatte 4 erhalten bleibt.Again, we have an adjustability of the lens plate 4, which is guided in the retaining ring 1. In this case, distance of the lens plate 4 to the LED support plate 8 by means of two lateral vertical guides 7 designed such that the assignment of the individual lenses on the lens plate 4 is maintained to the LEDs even during the displacement of the lens plate 4.

Die Verschiebung erfolgt durch die Drehbewegung an dem frontalen Führungsring 2. Die nun vorliegende Bauform weist zudem einen LED-Treiber 19 auf, der in einem LED-Treibergehäuse 20 unterhalb des Kühlkörpers 12 angeordnet ist.The displacement is effected by the rotational movement on the frontal guide ring 2. The now present design also has an LED driver 19 which is arranged in an LED driver housing 20 below the heat sink 12.

Unterhalb des Führungsrings 2 ist zudem als Abschluss an dem oberen Ende des Kühlkörpers 12 ein Silikonring 17 angeordnet, der in entsprechenden Aufnahmeaussparungen an den oberen Enden der Kühllamellen gehalten ist.Below the guide ring 2, a silicone ring 17 is also arranged as a conclusion at the upper end of the heat sink 12, which is held in corresponding receiving recesses at the upper ends of the cooling fins.

Diese Beschreibung trifft sowohl auf die Bauform in Figur 8 für einen PAR30-Scheinwerfer zu, wie auch für die in Figur 12 dargestellte Bauform für einen PAR38-Scheinwerfer.This description applies both to the design in FIG. 8 for a PAR30 headlight too, as well as for the in FIG. 12 illustrated design for a PAR38 headlight.

Die Figuren 11 und 14 zeigen ebenfalls diese zwei PAR-Scheinwerfer Bauformen in senkrecht geschnittener Form. Es ist hierbei das Führungsgewinde im Führungsring 2 innenseitig erkennbar, in welchem der Haltering 1 in vertikaler Bewegungsrichtung geführt ist. In beiden dargestellten Abbildungen 11 und 14 befindet sich hierbei die Linsenplatte 4 in ihrer obersten Position.The Figures 11 and 14 These two PAR headlamps also show designs in vertically cut form. It is in this case the guide thread in the guide ring 2 inside recognizable, in which the retaining ring 1 is guided in the vertical direction of movement. In both illustrated Figures 11 and 14, the lens plate 4 is in its uppermost position.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

Halteringretaining ring
(1)(1)
Führungsringsguide ring
(2)(2)
Fixierungsringfixing ring
(3)(3)
Linsenplattelens plate
(4)(4)
Linsenringlens ring
(5)(5)
Bohrungendrilling
(6)(6)
vertikaler Führungenvertical guides
(7)(7)
Trägerplattesupport plate
(8)(8th)
HalteplatteRetaining plate
(10)(10)
Befestigungsringfixing ring
(11)(11)
Kühlkörperheatsink
(12)(12)
AbschlussplatteEnd plate
(13)(13)
Befestigungsnietenfixing rivets
(14)(14)
Anschlusskontakteterminals
(15)(15)
LED'sLED's
(16)(16)
Silikonringsilicone ring
(17)(17)
Schraubenscrew
(18)(18)
LED-TeiberLED Teiber
(19)(19)
Treibergehäusedrivers housing
(20)(20)

Claims (9)

  1. LED lamp with infinitely adjustable radiation angle whereby several LED's (16) are located on a carrier plate (8) and a lens plate (4) is located in front of the carrier plate (8) at an adjustable distance,
    characterized in that
    - the lens plate (4) is designed as a lens array with a number of Fresnel lenses whereby each LED is located opposite a Fresnel lens on the lens plate (4),
    - whereby the lens plate (4) is adjusted in its distance to the LED carrier plate (8) by means of at least two almost vertical guide features (7),
    - whereby the lens plate (4) is located in a retaining ring (1) which with its outer contour fits into the guide thread of a guide ring (2) which in itself is turnable guided,
    - whereby by turning the guide ring (2) the retaining ring (1) with the lens plate (4) is secured by means of the side guides (7) in the turning movement of the retaining ring (2) to the LED plate (8) depending upon the turning direction either towards or away from this,
    - whereby the defined stages of the radiation angle of between 10° and 60° are set by lockin positions of the retaining ring (2) or are indicated by marks on the retaining ring (2).
  2. LED lamp with infinitely adjustable radiation angle as specified in Claim 1,
    characterized in that:
    six to nine LED's (16) are located on the carrier plate (8) which in turn is located opposite a lens plate (4) with six to nine Fresnel lenses which are directly above the LED's (16).
  3. LED lamp with infinitely adjustable radiation angle as specified in Claim 1 or 2
    characterized in that
    the distance between the lens plate (4) and the LED carrier plate (8) is chosen in such a manner that the radiation angle is infinitely adjustable in a range from ca. 10° to 60°.
  4. LED lamp with infinitely adjustable radiation angle as specified in one of the foregoing claims
    characterized in that
    the LED carrier plate (8) is located on a retention plate (10) which is set in the supporting ring (11) with which the retention plate (10) is fitted to a cooling unit (12).
  5. LED lamp with infinitely adjustable radiation angle as specified in one of the foregoing claims
    characterized in that
    the cooling unit (12) is shaped in the form of a half shell.
  6. LED lamp with infinitely adjustable radiation angle as specified in one of the foregoing claims 1 to 4
    characterized in that:
    the cooling unit (12) is somewhat cylindrically formed with super-imposed parallel cooling ribs whereby in the cooling unit (12) there is a through going drilled opening as channel for connecting the lamp unit to a power source
  7. Torch with infinitely adjustable radiation angle
    characterized in that
    the torch has a LED lamp as lighting designed in accordance with one of the foregoing claims whereby the cooling unit (12) is located freely between the battery compartment of the torch and the LED carrier plate (8).
  8. Torch with infinitely adjustable radiation angle as specified in Claim 9
    characterized in that
    3 to 5 LED's (16) are located on the LED carrier plate (8) and correspondingly the lens array (4) contains 3 to 5 Fresnel lenses
  9. Torch with infinitely adjustable radiation angle as specified in Claim 9 or 10
    characterized in that
    the cooling unit (12) has a through going drilled opening as channel for connecting the lamp unit to the power source.
EP10006873.3A 2009-10-22 2010-07-02 LED lamp with infinitely adjustable emission angle Not-in-force EP2314912B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009050395A DE102009050395A1 (en) 2009-10-22 2009-10-22 LED lamp with infinitely adjustable beam angle

Publications (2)

Publication Number Publication Date
EP2314912A1 EP2314912A1 (en) 2011-04-27
EP2314912B1 true EP2314912B1 (en) 2013-04-10

Family

ID=43530667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10006873.3A Not-in-force EP2314912B1 (en) 2009-10-22 2010-07-02 LED lamp with infinitely adjustable emission angle

Country Status (2)

Country Link
EP (1) EP2314912B1 (en)
DE (1) DE102009050395A1 (en)

Cited By (1)

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EP2876364A1 (en) 2013-11-22 2015-05-27 Koninklijke Philips N.V. Lighting device and luminaire

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PL224044B1 (en) * 2011-07-13 2016-11-30 Doros Teodora D A Glass Method for obtaining a homogeneous beam of electromagnetic radiation of any geometrical shape and the mechanical-optical device to apply this method
DE102011055679B4 (en) * 2011-11-24 2017-05-18 Vossloh-Schwabe Deutschland Gmbh Assembly for a luminaire with a light source carrier and a circuit carrier
CN103162242B (en) * 2011-12-08 2017-05-10 欧司朗股份有限公司 Illumination angle adjusting device and illuminating device
TWI500878B (en) * 2012-07-24 2015-09-21 Lextar Electronics Corp Illumination device and light source module with adjustable illumination distribution
JP2014150009A (en) * 2013-02-04 2014-08-21 Hitachi Appliances Inc Bulb type illumination device
US9303846B2 (en) * 2013-05-31 2016-04-05 GE Lighting Solutions, LLC Directional lamp with adjustable beam spread
CN104235631B (en) * 2013-06-07 2017-03-22 欧普照明股份有限公司 LED lamp
CN103527951B (en) * 2013-10-16 2015-04-15 桂林海威科技有限公司 LED illuminating device and lamp using LED illuminating device
WO2016019162A1 (en) 2014-08-01 2016-02-04 Coast Cutlery Co. Dual focus flashlight
USD957722S1 (en) 2019-03-29 2022-07-12 Technomate Manufactory Limited Lens for flashlights
US10914434B2 (en) 2019-03-29 2021-02-09 Technomate Manufactory Limited Flashlight apparatus and battery cartridge for the flashlight apparatus
USD959729S1 (en) 2019-03-29 2022-08-02 Technomate Manufactory Limited Lens for flashlights
USD955033S1 (en) 2019-03-29 2022-06-14 Technomate Manufactory Limited Lens apparatus for use with flashlights
USD970073S1 (en) 2020-09-15 2022-11-15 Technomate Manufactory Limited Flashlight
USD972755S1 (en) 2020-09-15 2022-12-13 Technomate Manufactory Limited Flashlight

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US6866401B2 (en) * 2001-12-21 2005-03-15 General Electric Company Zoomable spot module
US6787999B2 (en) 2002-10-03 2004-09-07 Gelcore, Llc LED-based modular lamp
US20040190286A1 (en) * 2003-03-25 2004-09-30 Chapman Leonard T. Flashlight
US8262252B2 (en) 2005-07-13 2012-09-11 Koninklijke Philips Electronics N.V. Illumination system
DE202005019594U1 (en) * 2005-12-15 2006-02-16 Zweibrüder Optoelectronics GmbH Lamp with socket

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP2876364A1 (en) 2013-11-22 2015-05-27 Koninklijke Philips N.V. Lighting device and luminaire

Also Published As

Publication number Publication date
EP2314912A1 (en) 2011-04-27
DE102009050395A1 (en) 2011-04-28

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