EP1721102B8 - Lampe - Google Patents
LampeInfo
- Publication number
- EP1721102B8 EP1721102B8 EP05728246A EP05728246A EP1721102B8 EP 1721102 B8 EP1721102 B8 EP 1721102B8 EP 05728246 A EP05728246 A EP 05728246A EP 05728246 A EP05728246 A EP 05728246A EP 1721102 B8 EP1721102 B8 EP 1721102B8
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- led
- lamp according
- lamp
- exit plane
- 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
Links
- 238000001816 cooling Methods 0.000 claims abstract description 56
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 description 6
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
-
- 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
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- 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
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- 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
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
-
- 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 He indiction relates to a lamp according to the preamble of claim 1.
- Such a lamp is available under the HALOSPOT brand from Osram GmbH in Kunststoff.
- the known lamp known for example under the name HALOSPOT 111, has a plug-in base with two connection contact pins, which is connected to a e.g. aluminum-coated reflector is connected.
- a halogen incandescent lamp is arranged as the light source, the incandescent filament being approximately in the region of the focal point of the parabolic reflector.
- the halogen lamp is covered in the main radiation direction of the lamp by a cap which is held on the reflector edge by means of two handle bars. The cover cap prevents direct light emission from the lamp in the main emission direction.
- the known lamp has a defined, e.g. very small beam angle, for example in the range of about 8 °, and thus enables targeted lighting of building surfaces or objects in the manner of accent lighting, even over long distances.
- the known lamp is typically used in the area of "shop lighting”.
- the object of the invention is to provide a lamp with a longer service life.
- the invention solves this problem with the features of claim 1, in particular with those of the identification part, and is accordingly characterized in that the light source is formed by at least one LED and is spaced from the inside of the reflector, and that at least one functional element of the LED, in particular at least one voltage supply line of the LED and / or at least one heat sink for the LED, is at least partially essentially runs along the light exit plane or is at least partially arranged on the side of the light exit plane facing away from the reflector.
- the principle of the invention thus consists essentially in providing an LED as the light source instead of the known halogen incandescent lamp. This enables a lamp life that is extended by orders of magnitude.
- An LED in the sense of claim 1 is understood to mean an LED module, for example an LED chip, which can have one or more LEDs (light emitting diodes).
- the special feature of the spaced arrangement of the LED according to the invention from the inside of the reflector enables a substantially breakthrough-free design of the reflector. While in the lamp of the prior art the incandescent lamp penetrates this approximately in the region of the apex of the reflector and is fastened to the reflector in the region of the apex, it is possible according to the invention to fasten the LED to the edge region of the reflector by means of functional elements which essentially run along extend a light exit plane of the lamp. At the same time, according to the invention there is the possibility of running current supply lines, that is to say voltage supply lines, likewise in the area of the light exit plane of the lamp.
- Cooling elements for example cooling blocks or cooling plates, can also be arranged on the side of the light exit plane facing away from the reflector or on the side of the LED facing away from the reflector.
- Functional elements in the sense of the invention are, for example, heat sinks for the LED, voltage supply lines for the LED, fastening elements for the LED, which enable the LED to be fastened relative to the reflector, and optionally also other components of the LED unit, for example a chip body.
- a problem of shading is avoided with the lamp according to the invention, since the light emanating from the LED hits the inside of the reflector without hindrance and can be reflected there and thus transmitted in the desired manner.
- no components which reduce the reflector area are arranged in the apex region of the reflector.
- the spaced arrangement of the LED from the apex region of the reflector forms a component-free space between the inner surface of the reflector and the actual light source.
- Both the fastening elements for the LED and the cooling elements and power supply lines are arranged in the region of the reflector opening in such a way that they enable the entire luminous flux to pass through the reflector opening practically without interference.
- the invention recognizes that the arrangement of the functional elements for the LED in the region of the reflector opening poses significantly fewer shading problems than if the LED were connected directly to the apex region of the reflector.
- the cooling element (s) also being arranged at a distance from the apex of the reflector.
- a heat sink designed as a solid cooling block can be opened be arranged on the side of the LED unit facing away from the reflector and, due to its compact and central arrangement, influence the passage of light only insignificantly.
- heat sinks designed as cooling plates can extend from the LED unit to the edge of the reflector and have a cross-sectional area projected onto the light exit plane that is negligibly small in relation to the entire cross sectional area of the reflector opening and thus also only insignificantly emits light from the lamp impaired.
- the principle according to the invention thus consists in not arranging components of an already required geometric size in an area of the apex of the reflector where this leads to greater light losses, but in arranging these components in an area of the reflector opening and, on the basis of a suitable geometric design, the proportion of the shading cross-sectional area keep the components low in relation to the entire reflector opening.
- the invention also recognizes that an LED or an LED unit, that is to say »an element which has one or more LEDs, requires only a very small amount of space and can thus be arranged in the focal point or in a focal point region of the reflector, without major shading problems.
- the wording, according to which the functional elements are arranged essentially along the light exit plane or on the side of the light exit plane facing away from the reflector, takes into account that the functional elements are advantageously arranged at a point that is as distant as possible from the apex region of the reflector, that is also advantageously in the region of a free edge of the reflector.
- the wording of claim 1 is also intended to include those exemplary embodiments in which the functional elements are arranged at a slight distance from the reflector opening.
- a free edge section is assigned to the actual, for example parabolic, reflector, which has practically no additional light-directing or light-guiding function and thus only a kind of extension of the reflector, for example for fastening the reflector or for limiting glare represents.
- the light exit plane in the sense of the invention is slightly distanced from the actual reflector opening.
- Directed light distribution in the sense of claim 1 is understood to mean, for example, a narrowly radiating, that is to say predominantly parallel, radiation which requires a parabolic reflector.
- a directed radiation is also understood to mean a focusing radiation which requires, for example, an elliptical reflector, that is to say a reflector whose reflector inner surface has the curve shape of an ellipse section. In this case too, the reflector is rotationally symmetrical.
- directional light distribution in the sense of the invention is also understood to be one which is achieved by almost any surface structuring of the inner surface of the reflector, for example by attaching a prism structure or the like. Structures of this type are known, for example, from the automotive headlight sector and are referred to there as free areas. Likewise, the inner surface of the reflector can also be segmented, so that different reflector contours are provided.
- the lamp according to the invention has a base for connection to a lamp-side lamp holder. It can be z. B. is a base of conventional design, as is known for example from the HALOSPOT 111, which forms an axial end region of the lamp.
- a light-side fastening of the lamp can also take place in that fastening elements are arranged in the region of the reflector edge, which interact with light-side fastening elements.
- a mounting ring or the like can also be used as a fastening element.
- the base of the lamp in the sense of the invention is understood to be the lamp-side fastening region which interacts with the fastening element.
- the base of the lamp according to the invention can also have the electrical connection contacts for connection to the light-side counter-connection contacts, for example in the form of connection contact pins which are arranged inside the base, as is the case with the known HALOSPOT 111.
- the lugs or connection contacts which are electrically connected to the LED unit and which in particular allow a direct screw-side or terminal connection on the lamp side can be assigned to the lamp. In this case, the mechanical fastening only takes place subsequently, e.g. the use of a mounting ring.
- the functional element at least partially protrudes from the reflector opening.
- This design of the functional element takes into account that a The problem of shading is kept low, insofar as the cross section of the functional element projected onto the light exit plane only makes up a small proportion of the area of the entire reflector opening, whereas an extension of the functional element out of the reflector opening, that is to say starting from the light exit plane, essentially directed away from the reflector element in the central longitudinal axis of the reflector, none major shading problems.
- the LED is assigned at least one voltage supply line which runs essentially along the light exit plane.
- the arrangement of at least one voltage supply line takes place in such a way that the electrical connection between the LED and the connection contacts arranged on the base does not take place in the shortest way along the longitudinal central axis of the lamp, but is accomplished via a
- detour which includes, for example, reaching around the edge of the reflector at at least one point and passing along the voltage supply line on the outside of the reflector. This practically enables a breakthrough-free reflector surface. In the apex area of the reflector in particular, no more openings are required to provide power supply lines.
- voltage supply lines are required for the voltage supply, these can preferably run essentially in the area of the light exit plane in the opposite direction to one another, that is to say diametrically. This also offers advantages with regard to the stability of a fastening of a unit, which has functional elements of the LED, to the reflector, which will be described later.
- the LED unit has three voltage supply lines, which are required, for example, to connect two different LEDs or two different types of To be able to separately control LEDs, for example LEDs of different colors, these voltage supply lines are preferably arranged at a respective circumferential angle of 120 ° to one another along the light exit plane.
- these four voltage supply lines are advantageously arranged such that two voltage supply lines each have an angle of essentially 90 ° enclose to each other along the light exit plane.
- At least one voltage supply line is provided which surrounds an edge of the reflector opening.
- the reflector is assigned a transparent cover element which closes the reflector opening.
- This cover element makes cleaning measures unnecessary during a long lamp life. Except for a receptacle for the LED unit which is arranged approximately in the center of the cover element, that is to say in the region of the longitudinal central axis of the reflector, this cover element closes the reflector opening completely and prevents dust or dirt particles from penetrating into the interior of the reflector. The interior of the reflector is completed in this way and enables maintenance-free lamp operation.
- At least one voltage supply line is provided, which is arranged on the side of the cover element facing away from the reflector.
- the cover element thus also possibly has the function of a carrier element for the voltage supply line and enables particularly simple attachment or attachment of the
- the cover element can, for example, be directly connected to the free edge of the reflector, for example it can be glued.
- the voltage supply line which can also be an integral part of a structural unit comprising further functional elements, can be attached to the cover element or directly to the reflector.
- the side of the cover element facing away from the reflector can thus provide a support surface for a structural unit and thus ensure simple positioning during production assembly.
- a handle part is provided on the side of the light exit plane facing away from the reflector or, if present, on the side of the cover element facing away from the reflector.
- This grip part can, for example, be part of a structural unit having functional elements, which includes, for example, heat sinks and voltage supply lines and possibly required insulating layers or insulating bodies.
- the handle part can enable a particularly simple assembly of this structural unit on the reflector.
- the grip part can advantageously also serve to insert the lamp in an intended lamp holder if only very small installation spaces are available for the lamp.
- the LED is assigned at least one heat sink for heat dissipation.
- This embodiment of the invention offers the advantage of a long lamp life.
- the heat sink is arranged at a distance from the apex of the reflector. This arrangement of the heat sink enables an almost unimpaired light transmission of the light emitted by the LED or the LED unit within the interior of the reflector. According to a further advantageous embodiment of the invention, the heat sink is arranged on the side of the light exit plane and / or the LED facing away from the reflector. This embodiment of the invention provides for the heat sink to be positioned as far away as possible from the apex of the reflector and thus further contributes to an essentially trouble-free light conduction within the reflector.
- the cooling body is formed by a compact, in particular solid cooling block.
- the space required to accommodate the heat sink can be kept small. This enables an arrangement of the cooling block essentially in the region of a longitudinal central axis of the reflector, preferably on the side of the light exit plane facing away from the reflector and / or on the side facing away from the reflector the LED. This further reduces the problem of shading and supports advantageous heat convection.
- the cooling body comprises a cooling plate which extends essentially along the light exit plane.
- a larger surface area is achieved compared to a cooling block, which facilitates heat convection.
- the cooling plates can provide the handle parts mentioned above, for example. They can also be part of a structural unit that attaches the LED unit to the reflector.
- the cooling plate can extend from the LED, i.e.
- the center of the reflector opening essentially to an edge of the reflector opening and in this way for a stable connection, for example by reaching around the edge or by possible interaction with a fastening element, for example with a clamping ring or mounting ring, which ensures indirect attachment of the pre-assembled unit to the reflector.
- the reflector is essentially continuous.
- Such a continuous design of the reflector is provided in particular in the region of its apex. This enables light to be conducted unimpeded within the interior of the reflector.
- the reflector of the lamp and thus the entire lamp can now be manufactured more easily and assembled more easily. Further advantages of the invention result from the non-cited subclaims and from the following description of an embodiment shown in the figures. In it show:
- FIG. 1 is a schematic, partially sectioned view of a lamp according to the invention
- FIG. 2 shows a second exemplary embodiment of a lamp according to the invention in a representation according to a partial enlargement approximately according to detail circle II in FIG. 1,
- FIG. 3 shows the lamp according to FIG. 1 in plan view according to arrow III in FIG. 1,
- FIG. 4 shows the lamp according to FIG. 1 in a position rotated by 90 ° about the central longitudinal axis (cf. also the cutting line information I-1 in FIG. 3 and IV-IV in FIG. 3),
- FIG. 5 shows the exemplary embodiment of FIGS. 1 to 4 in a schematic illustration approximately according to FIG. 3,
- FIG. 6 shows a third exemplary embodiment of the lamp according to the invention in a representation according to FIG. 5
- FIG. 7 shows a fourth exemplary embodiment of the lamp according to the invention in a representation according to FIG. 5.
- the lamp designated as a whole by 10 in the figures, will be explained in detail below. It should be noted that the same or comparable parts or elements for the sake of clarity have been designated with the same reference numerals, sometimes with the addition of small letters.
- a first exemplary embodiment of the lamp 10 has a base 11 in which two
- Contact pins 12a, 12b are fixed.
- the number of contact pins is initially to be understood as an example and depends on the type of LED used and its number, in particular on the way in which the LED is to be controlled.
- an electronic control device (not shown) of the type of
- Ballast be arranged. Such is preferably one
- ballast must be arranged on the light side, that is to say on the side of the lamp holder (not shown) which is remote from the lamp in terms of electrical engineering.
- type of contact pins to be used also depends on the type required
- the base 11 is connected to a reflector 13 which, according to the exemplary embodiment, is essentially parabolic and has a continuous shell shape.
- the reflector is designed to be rotationally symmetrical about the longitudinal central axis L of the lamp 10 and has a focal point or focal point region 32 which is arranged in the region of the longitudinal central axis L and is spaced from an apex or apex region 27 of the reflector 13.
- the reflector interior 33 (FIG. 4) is essentially empty.
- the reflector 13 comprises a reflector opening 15 which is delimited by an edge 16 of the reflector.
- the edge 16 is connected to a clamping or mounting ring 31.
- the reflector opening 15 provides a light exit plane E.
- An LED unit 19 with at least one LED 20, 20a, 20b, 20c is arranged in the region of the focal point 32 of the reflector 13.
- the LED 20, 20a, 20b, 20c essentially emits light in the direction x, which strikes the, for example, mirrored, but in any case reflecting inner surface 14 of the reflector 13.
- the light is directed by the reflector in such a way that the light emitted by or from the LEDs 20, 20a, 20b, 20c, 20d, 20e essentially leaves the lamp 10 in the main emission direction A and an essentially parallel beam with only a very small amount Beam expansion of a few degrees.
- a substantially circular disk-shaped cover element 17 is also provided, which has a central recess 18 for receiving the LED unit 19 and with its outer edge region 22 with the free edge region 16 of the reflector element 13 is connected.
- the reflector interior 33 is almost completely closed off by the cover element 17.
- the cover element 17 consists of transparent material, for example of transparent plastic, such as acrylic glass, and has a smooth or structured surface.
- the LED unit 19 is, for example, an LED chip, that is to say a carrier component which has at least one LED and has the required electrical connection contacts for the LED or the LED.
- at least two voltage supply lines 21a, 21b are required. According to the exemplary embodiment, these are guided essentially along the light exit plane E from the LED unit 19 to the edge 16 of the reflector 13.
- the voltage supply lines 21a, 21b rest directly on the cover element 17. In an embodiment not shown, the voltage supply lines can optionally also be an integral part of a cover element 17.
- the voltage supply line 21a (and, in a manner not shown, equally the opposite voltage supply line 21b) encompasses the edge region 22 of the cover element 17 and the edge region 16 of the reflector 13 and thereby merges into a connecting lug 23.
- a rear section is shown in FIG. 1
- Power supply line 24 (or 24a, 24b) provided.
- the rear section 24, 24a, 24b of the voltage supply line runs on the side of the reflector 13 facing away from the LED unit 19 and is only shown schematically in FIG. 1.
- the base 11 of the lamp shown in FIG. 1 can be omitted.
- the rear voltage supply line sections 24a, 24b shown in FIG. 1 are also unnecessary.
- the lamp is fastened by means of a clamping or mounting ring 31 directly on the light side at a fastening point provided for this purpose, not shown.
- the angled connecting lug designated 24 in FIG. 2 can be designed in the manner of a plug contact or in the manner of a screw contact and interact directly with counter-connection lines or counter-connection contacts on the light side.
- clamp or mounting ring 31 of the lamp 10 is referred to as the base in the sense of the invention.
- Light exit plane E run and in this way only a small one
- the beam path of the light emitted by the LED 20 is indicated schematically in FIG. 4 with dashed arrows.
- the LED unit 19 cooling elements in the form of a cooling block 29 or in the form Cooling plates 30a, 30b, 30c, 30d can be assigned, which are arranged on the side of the LED unit 19 facing away from the reflector 13 and / or on the side of the light exit plane E facing away from the reflector.
- a cooling block 29 is provided, which is essentially bulb-shaped and extends from the actual LED chip 19 in the main emission direction A, that is to say essentially along the longitudinal central axis L of the lamp 10.
- the area of the LED chip 19 and the cooling block 29 which can be projected onto the light exit plane E can therefore be kept relatively small. While with LED chips of the prior art, as currently ⁇ / on LED chip manufacturers are made available, the LED chips are very wide in one plane, since the cooling surfaces are arranged along the plane along which the chip extends, is according to the invention an accommodation of a cooling block 29 without significantly impairing the light emission possible due to the more compact design of the LED chip.
- the detailed design of the LED chip is arbitrary.
- the connection of cooling surfaces with the LED in conventional LED chip arrangements can be used here.
- the cooling block 29 can dissipate the heat generated during the operation of the LED from the rear of an LED chip 19. Other connections are also conceivable.
- FIG. 1 also shows the arrangement of two cooling plates 30a, 30b, which extend in a web-like manner from the LED chip 19 to the edge 16 of the reflector element 13.
- the exemplary embodiment shown in the figures provides both cooling plates 30a, 30b and a cooling block 29.
- lamps can also be provided which have only one cooling block or only one or more cooling plates.
- the cooling plate 30a contacts the outer side 36 of the cooling block 29 with its central contact surface 35 and forms a thermal bridge for heat conduction.
- the cooling plates 30a, 30b, 30c, 30d enable one
- the cooling plates 30a, 30b are arranged in alignment with the voltage supply lines 21a, 21b, 21c, 21d in relation to the radiation direction A of the lamp 10. This also results from FIGS. 5 to 7, which will be discussed later. It is advantageous that the total cross-section occupied by the cooling plates and the voltage supply lines, that is to say their surface projected onto the light exit plane, takes up only a very small proportion of the total surface provided by the reflector opening 15.
- an insulating layer 28 or an insulating body is arranged between the voltage supply line 21a and the corresponding cooling plate 30a. This ensures an electrical separation of these two components.
- cooling plates 30a, 30b, 30c, 30d it is possible to electrically connect the cooling plates 30a, 30b, 30c, 30d and the corresponding voltage supply line 21a, 21b, 21c, 21d.
- the insulating body 28 can be omitted in such an embodiment. In the embodiment described here and shown in the drawings, however, the electrical separation of cooling plates 30a, 30b, 30c, 30d and voltage supply lines 21, 21b, 21c, 21d is desired Furthermore, as is apparent from FIG.
- a fastening element 31 which in the exemplary embodiment is designed as a clamping or mounting ring, is provided in order to fasten the LED unit 19, the cooling elements 29, 30a, 30b, 30c, 30d, Insulator 28 and the power supply lines 21a, 21b, 21c, 21 d with the reflector 13 on a lamp.
- LED unit 19 can form a common, preassembled structural unit
- the clamping or mounting ring 31 can also be preassembled with this structural unit and can be used as a base instead of the base 11 to connect to the luminaire.
- the cooling plates 30a, 30b, 30c, 30d immediately provide a grip body. In the fully assembled state, the entire lamp 10 can be gripped by gripping the cooling plates and assembled in a simple manner.
- the cooling plates are, as can be seen in particular from FIGS. 5 and 7 and FIG. 1, relatively narrow, but have a relatively large height extending in the radiation direction A. This geometric design makes it easier to grasp the cooling plates, but on the other hand does not impair the light emission.
- Figures 5 to 7 illustrate a top view of the reflector opening 15 different geometrical arrangements and embodiments of lamps depending on the number of required power supply lines. If, as indicated in FIG. 5, only one LED or only one type or group of several LEDs is provided, then only two voltage supply lines 21a, 21b are required, which extend in opposite directions, ie essentially diametrically to one another.
- FIG. 6 shows an arrangement with two differently controllable LEDs or groups of LEDs, according to which, due to circuitry requirements, at least three voltage supply lines are required in order to be able to control these two LEDs individually. This advantageously results in an arrangement in which two voltage supply lines each enclose a circumferential angle of 120 ° along the light exit plane E.
- Fig. 7 shows a third embodiment in which three LEDs (e.g. red, green, blue) or three groups of LEDs, which can be controlled individually, are provided. Accordingly, four voltage supply lines are arranged, which enclose an angle of 90 ° between them.
- three LEDs e.g. red, green, blue
- four voltage supply lines are arranged, which enclose an angle of 90 ° between them.
- the exemplary embodiments in FIGS. 5 to 7 also have heat-dissipating cooling plates 30a, 30b, 30c, 30d which are arranged in alignment with the voltage supply lines 21a, 21b, 21c, 21d.
Landscapes
- 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10012150A EP2270384A3 (de) | 2004-03-05 | 2005-03-03 | Lampe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011368 | 2004-03-05 | ||
PCT/DE2005/000369 WO2005085706A1 (de) | 2004-03-05 | 2005-03-03 | Lampe |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10012150.8 Division-Into | 2010-09-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1721102A1 EP1721102A1 (de) | 2006-11-15 |
EP1721102B1 EP1721102B1 (de) | 2011-08-03 |
EP1721102B8 true EP1721102B8 (de) | 2012-02-08 |
Family
ID=34917086
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10012150A Withdrawn EP2270384A3 (de) | 2004-03-05 | 2005-03-03 | Lampe |
EP05728246A Not-in-force EP1721102B8 (de) | 2004-03-05 | 2005-03-03 | Lampe |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10012150A Withdrawn EP2270384A3 (de) | 2004-03-05 | 2005-03-03 | Lampe |
Country Status (5)
Country | Link |
---|---|
US (2) | US7857496B2 (de) |
EP (2) | EP2270384A3 (de) |
JP (1) | JP4778503B2 (de) |
CN (1) | CN1954174B (de) |
WO (1) | WO2005085706A1 (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9335006B2 (en) | 2006-04-18 | 2016-05-10 | Cree, Inc. | Saturated yellow phosphor converted LED and blue converted red LED |
CN101101090A (zh) * | 2006-07-07 | 2008-01-09 | 启萌科技有限公司 | 照明装置 |
WO2008049381A1 (de) * | 2006-10-25 | 2008-05-02 | Osram Gesellschaft mit beschränkter Haftung | Beleuchtungseinrichtung |
ITRM20070047A1 (it) * | 2007-01-31 | 2008-08-01 | Lince Energy S R L | Lampada in particolare di emergenza |
DE102007030186B4 (de) | 2007-06-27 | 2009-04-23 | Harald Hofmann | Lineare LED-Lampe und Leuchtensystem mit derselben |
ES2820846T3 (es) * | 2007-09-21 | 2021-04-22 | Signify Holding Bv | Una lámpara que tiene miembros de contacto en su borde circundante y un portalámparas |
US7736035B2 (en) * | 2008-02-13 | 2010-06-15 | Visteon Global Technologies, Inc. | Seven inch round LED headlamp |
JP3166727U (ja) * | 2008-03-13 | 2011-03-24 | ▲きん▼源盛科技股▲ふん▼有限公司 | 半導体固体化照明器具 |
WO2009140761A1 (en) * | 2008-05-23 | 2009-11-26 | Light Engine Limited | Non-glare reflective led lighting apparatus with heat sink mounting |
US9234646B2 (en) | 2008-05-23 | 2016-01-12 | Huizhou Light Engine Ltd. | Non-glare reflective LED lighting apparatus with heat sink mounting |
US7905639B2 (en) * | 2008-05-28 | 2011-03-15 | Osram Sylvania Inc. | Side-loaded light emitting diode module for automotive rear combination lamps |
US7762700B2 (en) * | 2008-05-28 | 2010-07-27 | Osram Sylvania Inc. | Rear-loaded light emitting diode module for automotive rear combination lamps |
DE102008031987A1 (de) * | 2008-07-07 | 2010-04-15 | Osram Gesellschaft mit beschränkter Haftung | Leuchtvorrichtung |
US7946735B2 (en) * | 2008-08-22 | 2011-05-24 | Joseph Chou | LED lighting apparatus having heat dissipating frame |
US9425172B2 (en) | 2008-10-24 | 2016-08-23 | Cree, Inc. | Light emitter array |
US8858032B2 (en) | 2008-10-24 | 2014-10-14 | Cree, Inc. | Lighting device, heat transfer structure and heat transfer element |
CN201448633U (zh) * | 2009-04-30 | 2010-05-05 | 华南师范大学 | 一种led照明灯 |
US9841162B2 (en) | 2009-05-18 | 2017-12-12 | Cree, Inc. | Lighting device with multiple-region reflector |
DE102009038864B4 (de) * | 2009-08-27 | 2021-11-25 | Pictiva Displays International Limited | Lampe zur Allgemeinbeleuchtung |
WO2011037876A1 (en) | 2009-09-25 | 2011-03-31 | Cree, Inc. | Lighting device having heat dissipation element |
EP2504866A4 (de) * | 2009-11-25 | 2014-04-23 | Juan Carlos Minano | Wärmeverteiler für eine fenstermontierte solarzelle |
US8511851B2 (en) | 2009-12-21 | 2013-08-20 | Cree, Inc. | High CRI adjustable color temperature lighting devices |
DE102010030296B4 (de) | 2010-06-21 | 2012-11-22 | Osram Ag | Lampe mit konkavem Reflektor und einem Vorsprung für mindestens eine Lichtquelle |
IT1402883B1 (it) * | 2010-11-22 | 2013-09-27 | Reggiani Illuminazione | Dispositivo di illuminazione a led con mezzi di ancoraggio. |
IT1402884B1 (it) * | 2010-11-22 | 2013-09-27 | Reggiani Illuminazione | Dispositivo di illuminazione a led. |
US9786811B2 (en) | 2011-02-04 | 2017-10-10 | Cree, Inc. | Tilted emission LED array |
JP2012226874A (ja) * | 2011-04-15 | 2012-11-15 | Ccs Inc | 反射型照明装置 |
CN102767704A (zh) * | 2011-05-04 | 2012-11-07 | 鼎元光电科技股份有限公司 | 反打式灯具 |
US10842016B2 (en) | 2011-07-06 | 2020-11-17 | Cree, Inc. | Compact optically efficient solid state light source with integrated thermal management |
US20130118725A1 (en) * | 2011-11-10 | 2013-05-16 | Shyh-Ming Chen | Heat Sink and Fins Thereof |
US9989213B2 (en) * | 2012-06-04 | 2018-06-05 | Philips Lighting Holding B.V. | Lighting device with optical reflector, luminaire having such lighting device and method of manufacturing a compact optical reflector |
JP2014082000A (ja) * | 2012-10-12 | 2014-05-08 | Minebea Co Ltd | フレネルレンズ用反射板及び照明装置 |
CN105051454B (zh) | 2013-03-15 | 2019-06-18 | 摩根阳光公司 | 光板、具有改善界面的光学组件及具有改善的制造容差的光板 |
US9714756B2 (en) | 2013-03-15 | 2017-07-25 | Morgan Solar Inc. | Illumination device |
US9960303B2 (en) | 2013-03-15 | 2018-05-01 | Morgan Solar Inc. | Sunlight concentrating and harvesting device |
CN103453358A (zh) * | 2013-07-15 | 2013-12-18 | 深圳市巧精灵照明有限公司 | 一种发光二极管筒灯 |
US20150138752A1 (en) | 2013-10-28 | 2015-05-21 | Next Lighting Corp. | Linear lamp replacement |
JP2016111268A (ja) * | 2014-12-09 | 2016-06-20 | キヤノン株式会社 | 冷却装置、照明光学系、露光装置、並びに物品の製造方法 |
CN110985947B (zh) * | 2019-12-30 | 2020-09-08 | 广州兰天电子科技有限公司 | 一种led聚光灯组装方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2025819A (en) * | 1935-07-10 | 1935-12-31 | Milton C Levy | Lamp shade holder |
US5782553A (en) * | 1993-10-28 | 1998-07-21 | Mcdermott; Kevin | Multiple lamp lighting device |
US5924785A (en) * | 1997-05-21 | 1999-07-20 | Zhang; Lu Xin | Light source arrangement |
JPH11251637A (ja) | 1998-03-03 | 1999-09-17 | Asahi Denki Kk | 発光ダイオードユニットおよび信号灯 |
JPH11273423A (ja) * | 1998-03-19 | 1999-10-08 | Elna Co Ltd | 発光ダイオード集合体ランプ |
DE29910417U1 (de) * | 1999-06-15 | 1999-08-12 | Sidler GmbH & Co, 72072 Tübingen | Reflektorleuchte |
DE19927142C1 (de) * | 1999-06-15 | 2000-12-07 | Sidler Gmbh & Co | Reflektorleuchte |
EP1158354A1 (de) * | 1999-12-02 | 2001-11-28 | Matsushita Electric Industrial Co., Ltd. | Entladungslampe |
DE20002565U1 (de) * | 2000-02-14 | 2001-06-28 | Zumtobel Staff Ges.M.B.H., Dornbirn | Leuchtdiodenanordnung mit Reflektor |
JP2001243809A (ja) * | 2000-02-28 | 2001-09-07 | Mitsubishi Electric Lighting Corp | Led電球 |
US6578998B2 (en) * | 2001-03-21 | 2003-06-17 | A L Lightech, Inc. | Light source arrangement |
DE10149273A1 (de) * | 2001-10-05 | 2003-04-17 | Reitter & Schefenacker Gmbh | Reflektor für eine Leuchte, wie eine Heckleuchte, ein Scheinwerfer oder eine Innenbeleuchtung eines Kraftfahrzeuges |
FR2831647B1 (fr) | 2001-10-26 | 2004-04-16 | Peugeot Citroen Automobiles Sa | Feu de signalisation de vehicule automobile pour diffusion de faisceaux lumineux indirects |
JP2003141910A (ja) * | 2001-11-02 | 2003-05-16 | Stanley Electric Co Ltd | 車両用灯具 |
US7011431B2 (en) * | 2002-04-23 | 2006-03-14 | Nichia Corporation | Lighting apparatus |
-
2005
- 2005-03-03 CN CN2005800136918A patent/CN1954174B/zh not_active Expired - Fee Related
- 2005-03-03 US US10/591,929 patent/US7857496B2/en not_active Expired - Fee Related
- 2005-03-03 EP EP10012150A patent/EP2270384A3/de not_active Withdrawn
- 2005-03-03 WO PCT/DE2005/000369 patent/WO2005085706A1/de active Application Filing
- 2005-03-03 EP EP05728246A patent/EP1721102B8/de not_active Not-in-force
- 2005-03-03 JP JP2007501109A patent/JP4778503B2/ja not_active Expired - Fee Related
-
2010
- 2010-11-12 US US12/945,367 patent/US8162522B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1954174B (zh) | 2012-07-04 |
EP1721102B1 (de) | 2011-08-03 |
US8162522B2 (en) | 2012-04-24 |
JP2007526605A (ja) | 2007-09-13 |
US7857496B2 (en) | 2010-12-28 |
US20110116270A1 (en) | 2011-05-19 |
JP4778503B2 (ja) | 2011-09-21 |
EP2270384A2 (de) | 2011-01-05 |
EP1721102A1 (de) | 2006-11-15 |
CN1954174A (zh) | 2007-04-25 |
WO2005085706A1 (de) | 2005-09-15 |
US20070189017A1 (en) | 2007-08-16 |
EP2270384A3 (de) | 2011-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1721102B8 (de) | Lampe | |
DE102016117450A1 (de) | Leuchtvorrichtung mit verbesserter Verbindung zur Stromzuführung | |
EP2534416B1 (de) | Befestigungselement, leuchtmodul und leuchtvorrichtung | |
EP3021041B1 (de) | Lichtquellenmodul für einen fahrzeugscheinwerfer | |
EP2491295B1 (de) | Linienlampe | |
EP1923626B1 (de) | LED-Modul mit integrierter Ansteuerung | |
DE102004062989A1 (de) | Beleuchtungseinrichtung mit mindestens einer Leuchtdiode und Fahrzeugscheinwerfer | |
DE202010006197U1 (de) | LED-Lampe | |
DE112015004420B4 (de) | Led-glühlampe | |
DE102010029227A1 (de) | Leuchtvorrichtung | |
DE112009005216T5 (de) | Scheinwerfer-LED-Ansteuerungseinrichtung und Scheinwerfer | |
EP2171352B1 (de) | Leuchtmittel | |
WO2016096608A1 (de) | Led-träger mit einer led und leuchte mit einem derartigen led-träger | |
DE10116957A1 (de) | Fahrzeugleuchte | |
DE102016202621A1 (de) | Lampe | |
DE102012205179A1 (de) | LED-Lampe mit einer LED als Leuchtmittel und mit einem Lampenschirm aus Glas oder Kunststoff | |
DE102015226636A1 (de) | Leuchtvorrichtung mit laserdiode und wandlereinrichtung | |
DE102017222631A1 (de) | Lampenanordnung und scheinwerfer | |
EP2757309A2 (de) | Leuchtdiodenmodul und Leuchte mit mindestens einem Leuchtdiodenmodul | |
DE102017130100A1 (de) | Leuchte, Befestigungselement für eine Leuchte und Verfahren zur Herstellung einer Leuchte | |
DE202009005777U1 (de) | Einbaustrahler | |
WO2012028170A1 (de) | Scheinwerfer für ein fahrzeug | |
DE102014213377A1 (de) | Halbleiterlampe | |
DE102016200696A1 (de) | Lampe | |
DE102013104150B4 (de) | Leuchtmittelhalterung und Verfahren zu deren Montage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20060825 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
17Q | First examination report despatched |
Effective date: 20070913 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: OSRAM AG |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502005011719 Country of ref document: DE Effective date: 20110929 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20120504 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502005011719 Country of ref document: DE Effective date: 20120504 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20140319 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20140319 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20140319 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502005011719 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150303 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20151130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151001 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150303 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150331 |