EP2250428B1 - Module d éclairage, lampe et procédé d éclairage - Google Patents
Module d éclairage, lampe et procédé d éclairage Download PDFInfo
- Publication number
- EP2250428B1 EP2250428B1 EP09708178.0A EP09708178A EP2250428B1 EP 2250428 B1 EP2250428 B1 EP 2250428B1 EP 09708178 A EP09708178 A EP 09708178A EP 2250428 B1 EP2250428 B1 EP 2250428B1
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- EP
- European Patent Office
- Prior art keywords
- light
- light source
- optical component
- lighting module
- reflector
- Prior art date
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Images
Classifications
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
-
- 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
- F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp
-
- 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
- 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
- F21V7/09—Optical design with a combination of different curvatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- 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
- F21Y2105/00—Planar light sources
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
-
- 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]
-
- 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]
- F21Y2115/15—Organic light-emitting diodes [OLED]
Definitions
- the invention relates to a lighting module with a light source, an optical component and a reflector, a luminaire with such a lighting module as well as a lighting method.
- a light-emitting device which has a light-emitting component and a lens.
- the lens has a bottom surface, a first reflective surface, a second reflective surface, and a refractive surface such that the light that falls into the lens through the bottom surface and that directly strikes the first reflective surface is from the first reflective surface is reflected onto the second reflective surface, then from the second reflective surface to the refractive surface Surface is reflected and then refracted from the refractive surface of the lens to exit.
- Light incident on the lens through the lower surface and directly on the second reflective surface is reflected by the second reflective surface onto the refractive surface and then refracted by the refractive surface of the lens to exit the lens.
- the illumination module has at least one light source, at least one optical component arranged at a distance from the at least one light source, and at least one reflector.
- the optical component is designed and arranged to have a wide-emitting radiation characteristic and to direct a predominant part of the light incident on the optical component from the light source onto the reflector, the proportion being at least 30%.
- the illumination module furthermore has a plurality of sets of in each case at least one light source and one downstream optical component, wherein the multiple sets are followed by a common reflector, and wherein the optical components are lenses with a different orientation.
- Wide beam means that the optical component is designed and arranged so that the maximum light intensity is not on its optical axis or main beam direction; on such an optical component incident light, z.
- This device is capable of producing sharp images, e.g. B. with a sharp light / dark boundary, at the same time to achieve a very compact and bright radiant structure.
- This is achieved, inter alia, that the law between image sharpness and dimensioning of pure lens systems (etendue) can be circumvented by using the reflector.
- This is due to the spacing
- the optics of the light source ensure that the optics are not damaged by too high a luminous flux density or temperature. Damage caused by the incident light can be considerable, in particular for plastic optical components, since they can be clouded by the incidence of light and thus reduce the life of the module.
- the spacing allows easy scalability of the system, e.g. B. to adapt to a different number of light sources.
- sharp light / dark transitions in the target area are z. B. in signaling, street lighting, automotive lighting, business lighting (so-called. 'Shoplighting'), architectural lighting, etc. can be used advantageously.
- At least 90%, more preferably more than 95%, of the amount of light emitted by the at least one light source falls on the optical component.
- the remaining portion can - preferably - fall directly onto the reflector or can be emitted directly to the outside.
- an illumination module in which the optical component is configured and arranged to have light along an optical axis of not more than 30%, in particular not more than 20%, to radiate a maximum light intensity (height of the light intensity maximum).
- the light sources may be formed as separately shaped and controlled light sources or groups of such light sources. It is preferred if at least one light source, preferably a plurality of light sources, is applied to at least one carrier element; As a result, the illuminance is scalable and, when several light sources are combined in a group, a particularly compact design is achieved.
- the carrier element has a plurality of light sources in a, in particular rectangular (matrix-like) group of light sources combined, for. B. in the matrix arrangement 1x2, 1x3, 2x2, 2x3, 3x3, etc.
- a matrix arrangement 1x2, 1x3, 2x2, 2x3, 3x3, etc.
- An illumination module may be preferred in which the multiple light sources emit the same color, in particular white.
- An illumination module may be preferred in which at least two light sources radiate to one another in different colors, in particular if the light sources produce a white mixed light.
- light sources in a combination of RGB eg, RGB, RGGB, RRGB, RGBB, etc.
- RGB e.g., RGB, RGGB, RRGB, RGBB, etc.
- yellow 'amber'
- the light source (s) as light emitting diode (s), LED (s), is executed or are.
- the type of LED is not limited and may include, for example, inorganic LEDs or organic LEDs (OLEDs). Preferred is a use of surface mounted LEDs ("Surface Mounted LEDs") or chip arrays based on chip-on-board or similar technologies.
- LEDs z As well as laser diodes or other compact light sources used.
- an illumination module is preferred in which a light entry surface of the optical component facing the light source (s) is arranged at a distance of at least 2.5 mm, preferably of at least 5 mm, to a surface of the light source. As the distance increases, the load on the optical component continues to decrease, so a distance of more than 5 mm is preferable to shorter distances.
- an illumination module in which a light entry surface of the optical component facing the light source is arranged at a distance from a surface of the light source having at least the maximum linear dimension, in particular at least twice the maximum linear dimension, the light source and / or the group of Light sources corresponds.
- the maximum linear dimension is the maximum distance between two points located on the outer contour of the LED or the group of LEDs.
- a lighting module in which a light entry surface of the optical component facing the light source is arranged at a distance from a surface of the LED which is at least one quarter of a diameter of the light entry surface of the optical component, in particular at least one third of the diameter of the light entry surface is preferred of the optical component corresponds. This also ensures that the thermal stress of the lens is reliably reduced regardless of their absolute size and no heat build-up between the LED and the lens.
- An illumination module is furthermore preferred in which the light entry surface of the optical component facing the light source is arranged at a distance of at most 30 mm, preferably of at most 20 mm, from the surface of the light source. This ensures that the radiation emitted by the LED reaches the lens with as little loss as possible, and that a compact arrangement is achieved.
- a lighting module in which the facing light entry surface of the optical component is arranged at a distance from the surface of the light source, which is at most eight times the maximum linear dimension, preferably at most five times the maximum linear dimension, the light source and / or Group of light source corresponds. This also ensures that, regardless of the absolute size of the LED or the group of LEDs, the radiation emitted by the LED arrives in sufficient concentration at the lens and a compact design is achieved.
- an illumination module in which a light entry surface of the optical component facing the light source is arranged at a distance from the surface of the LED that corresponds at most to one and a half times the diameter of the light entry surface of the optical component, in particular at most the diameter of the light entry surface of the optical component. This also ensures a compact design with good light output.
- the coordinate axis is then preferably that axis which indicates a mounting position between light sources and optical component.
- the optical component is generally an optical component that has a wide-angle characteristic, in particular, a light-transmitting optical component such as a lens or a diffraction grating, but may also be configured as a non-light-transmissive optical component such as a reflector.
- a light-transmitting optical component such as a lens or a diffraction grating
- a non-light-transmissive optical component such as a reflector.
- a lighting module in which the optical component comprises at least one lens.
- the optical component comprises at least one lens.
- a lens arrangement with minimized total reflection is made possible, which causes a lower sensitivity of the optics to manufacturing tolerances and misalignment due to the low total reflection.
- a lighting module in which at least one surface of the lens has an aspherical shape may be preferred.
- a lighting module in which at least one surface of the lens has an elliptical freeform ('spline') may be preferred.
- a lighting module may be preferred in which a light entry surface of the lens has a concave recess ('dome').
- a diffraction grating may also be preferred.
- the optical component may also have a reflective surface, e.g. As an upside-down, cone-shaped reflector include.
- the optical component is formed of a transparent polymer as the base material.
- Polymer materials enable simple and cost-effective shaping, even with complex shapes, with the advantages of the invention having a particularly pronounced effect on these lenses.
- an optical component made of glass may also be preferred.
- a single optical component can be used, or several cooperating optical components can be used to obtain the wide-angle radiation characteristic.
- the reflector is preferably located in a beam path of a light intensity maximum.
- the reflector surrounds the light source (s), in particular the light source (s) and optics (s), on all sides perpendicular to the optical axis or main emission direction.
- the light output and the efficiency are increased, since any light emitted to the side can be concentrated in the direction of the lens or the emission direction.
- a lighting module is preferred in which at least one reflection (part) surface or sector, z. B. has a side surface, at least two facets.
- At least one sector of the reflector has at least 6, preferably between 8 and 20, in particular 10, facets.
- the faceting causes a homogenization of the illuminance and color distribution, since the images of different areas of an LED chip or different LED of a group of LEDs can overlap.
- At least one reflection surface or a sector of the reflector is provided with facets, that of individual facets, in particular all facets, reflected light bundles largely overlap the target field or a sub-zone thereof.
- the desired target field or certain sectors thereof are preferably completely covered by a plurality of light beams emitted by the facets.
- the reflector has a rectangular in plan view basic shape in which the two shorter reflector sides have no more facets and the two longer reflector sides each having a plurality of facets.
- a reflection surface of the reflector has a cross-sectionally elliptical or parabolic basic shape, with or without introduced facets.
- the reflector is essentially formed from a thermally highly conductive base material, in particular aluminum. This allows the reflector in addition to the heat dissipation of the light source (s) can be used.
- the illumination module and / or the optical component has a rotationally symmetrical illumination pattern.
- a lighting module which has a carrier element with one or more light sources, an optical component and a reflector.
- the illumination module can alternatively also have a plurality of carrier elements, each having one or more light sources and a plurality of optical components, eg. B. summarized to several - in particular, but not necessarily substantially identical - groups of support element (s) and optics (s).
- the luminaire has at least one illumination module as described above, in particular a plurality of illumination modules.
- This lamp has the advantage that it can be built easily and without complicated setting. It is particularly advantageous that a planar arrangement of the lighting modules is also possible for a cylindrical image, whereby the heat or thermal management is simplified and a higher design freedom in the luminaire housing is made possible.
- a lamp the plurality of lighting modules in a matrix arrangement, for. B. a linear (1xn) or rectangular (nxm with n, m> 1) arrangement has.
- the arrangement of the modules is generally arbitrarily configurable, for. B. also circular, elliptical or irregular.
- the same or differently designed modules can be used together.
- the lamp especially with a sharp light / dark characteristic, is particularly preferably used as a lamp for spot lighting, signal lighting or street lighting.
- a predominant part of a light emitted by at least one light source onto an optic arranged at a distance from it is directed onto a reflector, wherein the light emitted by the optic has a broad-emission radiation characteristic.
- FIG. 1 shows a lighting module 1, which is a combination of at least one light source (not shown) and one of these light source spaced downstream optical Has component in the form of a lens 2. Furthermore, the lighting device 1 has a reflector 3 arranged downstream of the lens 2, and furthermore a bonding board 4 for fastening the light source and a motherboard 5 for fastening the lens 2, the reflector 3 and the bonding board 4. In this case, downstream of at least one part of the from the (at least one) light source emitted light directly or indirectly incident on the lens 2 and incident from the lens 2 on the reflector 3. The lens 2 and the reflector 3 are thus arranged at least partially connected in series in the beam path of the light emitted by the at least one light source.
- the lens 2 is designed and arranged so that it has a wide-angle radiation characteristic and a predominant part (> 50%) of the light incident from the light source to the reflector 3 directs. This means here that the light intensity maximum is not on the optical axis O of the lens 2 or the lens 2 in combination with the light source.
- One possible radiation pattern of a wide-beam LED lens system is in FIG. 3 more detailed. In particular, light lobes with light intensity maxima fall on the reflector 3. Only a minor part ( ⁇ 50%) of the light incident on the lens 2 is emitted directly from the illumination module 1.
- the reflector 3 or its reflection surface is equipped on two opposite, long sides with reflector sections (facets) 3 a extending in the width direction (x direction), which adjoin one another in the height direction (z direction) and each have a concave surface shape ,
- Each of the 10 reflector sections 3a of which only three 3a-1,3a-9,3a-10 are provided with reference numerals for reasons of clarity, is inclined relative to the other reflector sections 3a about the x-axis.
- the shorter reflector sides are provided with a smooth surface without facets.
- the shape of the reflector 3 is not symmetrical with respect to the (x, z) plane, but the reflector 3 is inclined to one side, so that a main radiation direction of the illumination module 1 is inclined with respect to the optical axis O.
- the reflector 3 is made of an aluminum alloy, whereby it can be used for heat dissipation from the light source. On the inside (reflection surface) it is provided with a suitable reflective coating.
- this lighting module 1 By using this lighting module 1, a highly homogeneous illuminated target field can be achieved in a compact and easy to manufacture manner, which also allows a high marginal sharpness between different lighting areas or the non-illuminated area (light / dark boundary).
- the law between image sharpness and dimensioning of pure lens systems (etendue) can be circumvented by using the reflector 3.
- Sharp light / dark transitions in the target area are particularly desired in the areas of signaling technology, street lighting, automotive lighting, commercial lighting and architectural lighting.
- bores 6 are on the motherboard for the implementation of fasteners, z. As screws provided.
- FIG. 2 shows the lighting device 1 from FIG. 1 as a sectional view through the center of the lens 2 in a sectional plane parallel to the (y, z) plane.
- the two longitudinal walls of the reflector 3, which expand in the x-direction, are not symmetrically shaped or arranged with respect to the optical axis O by the lens 2. Rather, one of the walls (in this illustration, the left wall) of the reflector 3 is more angled from the optical axis O, thus has in this respect a further opening, while the other side (here: the right side) of the reflector 3 closer to the optical Axis O is arranged and thus a generally lower Opening angle with this includes. As a result, light emitted by the lens 2 is radiated primarily to the left.
- the lens 2 radiates a large part of the light incident on it from the light source 7
- a large part of the light emitted by the light source 6 also falls on the reflector 3, as with reference to FIG. 4 will be described in more detail.
- the partial light bundles of the individual facets 3a (which are provided here with reference symbols only for the left reflector side, and only partially there) are largely superimposed, whereby the illuminance and color on the target surface are homogenized.
- the LED light sources used as such typically have a substantially Lambertian radiation characteristic. Only through the downstream lens, the wide-angle radiation characteristic is achieved.
- the light intensity in the direction of the optical axis is only about 25% of the light intensity maximum.
- the opening angle can also be made larger or smaller.
- the opening angle need not be symmetrical to the optical axis of the light source (s).
- the opening angle may vary in the circumferential direction, z. B. the type 120 ° x 80 °.
- FIG. 4 shows a magnifying section FIG. 2 in the region of the lens 2, which is made of a transparent polymer material according to the prior art.
- the lens 2 is inserted by means of integrally molded legs 8 for connection to the motherboard 5 in corresponding recesses or holes 9 of the motherboard 5.
- the six light sources 7, of which two are drawn here, are surface-mounted, white-emitting LEDs on a carrier element 10.
- the carrier element 10 is designed in particular as a printed circuit board on which the six LEDs 7 are arranged in two rows of three rectangular individual LED chips 7 (2x3 matrix arrangement), so that a rectangular overall arrangement with an edge length of about 3 mm in the longitudinal direction and about 2 mm in the transverse direction.
- the carrier element 10 is mounted on the bonding board 4, which in turn is connected by means of a screw 11 to the motherboard.
- the LEDs 7 emit their light predominantly on the underside of the lens 2 (light entrance surface). Only a small proportion ⁇ 5% is radiated directly onto the reflector 3 under the lens 2.
- the light entrance surface of the lens 2 has a concave, z. B. parabolic or elliptical, molded cavity or recess ('dome') 12 on.
- the light entry surface essentially corresponds to the surface of the dome 12. From the light entry surface or the dome 12, the light beams are guided by the lens 2 to its upper surface, from which they are radiated wide.
- This lens 2 ensures that approximately 70% of the power radiated by the light sources 7 are applied to the reflector 3.
- the electrical lines and possibly electronics required for the operation of the lighting device are not shown here.
- the lens 2 is arranged in particular at a distance of approximately 8 mm from the group of light-emitting diodes 7.
- the distance the lens 2 of the group of LEDs 7 is thus more than twice the maximum linear dimension of the group of LEDs 7, in this case the diagonal of the rectangular array of approximately 3.6 mm. Too large a distance of the lens 2 from the LEDs 7 should be avoided, since so that the thermal load of the lens 2 continues to decrease, but then the arrangement is very large.
- a maximum distance of 20 mm or approximately 5 times the maximum linear extent of the group of LEDs 7 has proven to be useful in the components commonly used.
- the lens 2 has a diameter of approximately 17 mm.
- the radiation entrance surface 12 of the lens 2 is thus arranged at a distance from the surface of the LEDs 7, which corresponds to more than one third of the diameter of the radiation entrance surface of the lens 2, in the present example, even approximately half. Too large a distance of lens 2 and LEDs 7 would require a very large lens diameter to capture an equal proportion of the emitted light with the lens 2 as in a nearer to the LED 7 lens 2. However, this increases the manufacturing effort and Module 1 gets very big and unwieldy. It has proved to be advantageous to choose the distance from the radiation entrance surface of the lens 2 and LED 2 smaller than the lens diameter.
- the outer annular beveled side surface 13 of the lens 2 is designed so that a minimized total reflection of the lens 2 results, which in turn leads to a lower sensitivity of the lens 2 to manufacturing tolerances and a misalignment.
- FIG. 4 corresponds to the mentioned distance the shortest distance of an LED 7 to the lens. 2
- FIG. 5 shows in plan a simplified representation of a further embodiment of a lighting device 14, in which now three sets of light source (s) and associated wide-angle lens 15 are arranged on a motherboard 5 and surrounded by a common reflector 3.
- Each set with a combination of one or more light sources and common wide-beam optical system 15 has the same basic components, for example the now elliptical lens 15, but here the orientation of the lenses 15 in the (x, y) plane is different.
- two adjacent lenses 15 are offset in the x, y plane by 45 ° to each other. Also it is possible if in this FIG.
- the optical axes of the lenses 15 are angularly offset from each other, in this embodiment, for example, with respect to the z-axis, so that, for example, the top set with its combination of light source (s) and lens 15 at a certain angle with respect to the x -Axis is inclined, the optical axis of the middle set coincides with the z-axis and the optical axis of the lower set is inclined by the same angle as that of the upper set against the z-axis, but in another direction, here for example in the opposite direction.
- any other suitable light source can be used, for. B. a laser diode.
- inorganic light-emitting diodes based on InGaAlP or AlInGaP or InGaN, but also AlGaAs, GaAlAs, GaAsP, GaP, SiC, ZnSe, InGaN / GaN, CuPb, etc., or, for example, also OLEDs. Particularly advantageous is the use of ThinGaN technology. Also, various types of construction can be used, such as surface-mounted LEDs.
- Such same-colored light sources may be multi-chrome or monochrome radiating light sources.
- white light sources are used, for example, blue and phosphor provided with LEDs, in which the phosphorus wavelengths a portion of the light emitted by the LED blue light in yellow light, resulting in a total white mixed light.
- UV LEDs in conjunction with wavelength conversion material is conceivable, which converts the UV light of the LEDs as completely as possible into visible light, in particular white light.
- other color combinations are possible, especially for producing a white light.
- "hard” or "soft” white can be produced as white light.
- a single light source or a combination of multiple light sources is conceivable, for example, a cluster of multiple light sources, eg. B. LED chips.
- the associated light sources of the cluster in particular LED clusters, can be different colors to one another and result in a white light in color mixing.
- an LED cluster of red, green and blue radiating individual light sources (RGB) is conceivable.
- RGB red, green and blue radiating individual light sources
- One or more LEDs can be used per color, eg. B. depending on the desired color intensity.
- light sources, especially LEDs, other color can be added, for. B. yellow or amber LEDs.
- the light intensity of the light sources is preferably adjustable, z. B. dimmable, z. B. via a regulation of the light sources supplied current.
- a lens can be used, for.
- An AR-GUS lens It is possible to enable a broad emission characteristic but also combinations of multiple lenses, even if this is for reasons of cost and simple assembly is not preferred. Overall, it is possible to make a smaller part of the broadly emitted light not reflect from the reflector.
- the wide-beam combination of light source (s), optics and optionally reflector can enable rotationally symmetrical, mirror-symmetrical and / or asymmetrical light distribution patterns.
- the reflection surface of the reflector may be structured or not structured.
- structuring in particular different facet regions can be provided on the reflection surface, which, in addition to being elongated, also have, for example, a shape which is limited in both dimensions, for example.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Claims (14)
- Module d'éclairage (1 ; 14), comprenant au moins:- une source de lumière (7), et plus particulièrement une diode électroluminescente,- une lentille (2 ; 15) disposée à une certaine distance de la source de lumière (7) et- un réflecteur (3),- dans lequel la lentille (2 ; 15) est conçue et agencée de manière à présenter une caractéristique de rayonnement à faisceau large et à diriger sur le réflecteur (3) une certaine proportion de la lumière incidente en provenance de la source de lumière (7), dans lequel ladite proportion est d'au moins 30%, caractérisé en ce que- le module d'éclairage (14) comprend une pluralité d'ensembles chacun constitués d'au moins une source de lumière (7) et d'un composant optique (15) placé en aval,- dans lequel un réflecteur commun (3) est placé en aval de la pluralité d'ensembles (7, 15) et- dans lequel les composants optiques sont des lentilles (15) ayant des orientations différentes.
- Module d'éclairage (1 ; 14) selon la revendication 1, dans lequel le composant optique (2 ; 15) est conçu et agencé pour diriger sur le réflecteur (3) une proportion majeure de la lumière incidente en provenance de la source de lumière (7).
- Module d'éclairage (1 ; 14) selon la revendication 1 ou 2, dans lequel le composant optique (2 ; 15) est conçu et agencé de manière à diriger sur le réflecteur (3) au moins 60 %, et plus particulièrement au moins 70% de la lumière incidente en provenance de la source de lumière (7).
- Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel le composant optique (2 ; 15) est conçu et agencé de manière à rayonner de la lumière le long d'un axe optique (0), ne présentant pas plus de 30 %, et plus particulièrement, pas plus de 20 % d'une intensité lumineuse maximale.
- Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel une surface d'entrée de lumière tournée vers la source de lumière (7) du composant optique (2 ; 15) est disposée à une distance d'au moins 2,5 mm et de préférence, d'au moins 5 mm de la surface de la source de lumière (7).
- Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel une surface d'entrée de lumière tournée vers la source de lumière (7) du composant optique (2 ; 15) est disposée à une distance de la surface de la source de lumière (7)
qui correspond à au moins la dimension linéaire maximale, et plus particulièrement à au moins le double de la dimension linéaire maximale de la source de lumière (7) et/ou du groupe de sources de lumière et/ou
qui correspond à au moins un quart d'un diamètre de la surface d'entrée de lumière du composant optique (2 ; 15), et plus particulièrement, à au moins un tiers du diamètre de la surface d'entrée de lumière du composant optique (2 ; 15). - Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel la surface d'entrée de lumière tournée vers la source de lumière (7) du composant optique (2 ; 15) est disposée à une distance la plus faible d'au plus 30 mm, et de préférence, d'au plus 20 mm de la surface de la source de lumière (7).
- Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel la surface d'entrée de lumière tournée vers la source de lumière (7) du composant optique (2 ; 15) est disposée à une distance la plus faible de la surface de la source de lumière (7) qui
correspond au plus à huit fois la dimension linéaire maximale, et plus particulièrement à au plus cinq fois la dimension linéaire maximale de la source de lumière (7) et/ou du groupe de sources de lumière (7) et/ou
correspond au plus à une fois et demie le diamètre de la surface d'entrée de lumière du composant optique (2 ; 15), et plus particulièrement, au plus au diamètre de la surface d'entrée de lumière du composant optique (2 ; 15). - Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel le composant optique comprend un réseau de diffraction.
- Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel au moins une surface de réflexion du réflecteur (3) est structurée, et plus particulièrement, est munie de facettes ; dans lequel
l'au moins une surface de réflexion du réflecteur (3) est munie de facettes (3a) de telle manière que des faisceaux lumineux réfléchis par une pluralité, et plus particulièrement, par la totalité des facettes (3a) se superposent entièrement
et/ou
dans lequel le réflecteur (3) présente une forme de base rectangulaire dont les deux côtés courts ne présentent pas de facettes et dont les côtés longs présentent respectivement une pluralité de facettes (3a). - Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, comprenant un motif de distribution lumineuse symétrique de rotation, symétrique dans un miroir ou asymétrique.
- Module d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes, dans lequel les composants optiques sont des lentilles (15) dont les axes optiques sont décalés angulairement les uns par rapport aux autres.
- Lampe comportant au moins un module d'éclairage (1 ; 14), et plus particulièrement une pluralité de modules d'éclairage (1 ; 14) selon l'une quelconque des revendications précédentes.
- Lampe selon la revendication 13, générant une limite clair/obscur nette dans une zone cible.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007723A DE102008007723A1 (de) | 2008-02-06 | 2008-02-06 | Beleuchtungsmodul, Leuchte und Verfahren zur Beleuchtung |
PCT/EP2009/000849 WO2009098081A1 (fr) | 2008-02-06 | 2009-02-06 | Module d’éclairage, lampe et procédé d’éclairage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2250428A1 EP2250428A1 (fr) | 2010-11-17 |
EP2250428B1 true EP2250428B1 (fr) | 2014-11-26 |
Family
ID=40521520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09708178.0A Active EP2250428B1 (fr) | 2008-02-06 | 2009-02-06 | Module d éclairage, lampe et procédé d éclairage |
Country Status (6)
Country | Link |
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US (1) | US8556471B2 (fr) |
EP (1) | EP2250428B1 (fr) |
KR (1) | KR101212911B1 (fr) |
CN (1) | CN101939583B (fr) |
DE (1) | DE102008007723A1 (fr) |
WO (1) | WO2009098081A1 (fr) |
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JP5708983B2 (ja) | 2010-03-29 | 2015-04-30 | 東芝ライテック株式会社 | 照明装置 |
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WO2011132159A1 (fr) * | 2010-04-23 | 2011-10-27 | Koninklijke Philips Electronics N.V. | Unité d'éclairage à base de diodes |
DE102010050933A1 (de) * | 2010-11-11 | 2012-05-16 | Karl Storz Gmbh & Co. Kg | Endoskop mit schwenkbarer Blickrichtung |
DE102011003300B4 (de) * | 2011-01-28 | 2015-01-29 | Osram Gmbh | Leuchtvorrichtung |
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TWI266079B (en) | 2005-01-10 | 2006-11-11 | Shiu-Hua Huang | Steering lens and light emitting system using the same |
-
2008
- 2008-02-06 DE DE102008007723A patent/DE102008007723A1/de not_active Ceased
-
2009
- 2009-02-06 KR KR1020107018511A patent/KR101212911B1/ko active IP Right Grant
- 2009-02-06 WO PCT/EP2009/000849 patent/WO2009098081A1/fr active Application Filing
- 2009-02-06 US US12/866,465 patent/US8556471B2/en active Active
- 2009-02-06 EP EP09708178.0A patent/EP2250428B1/fr active Active
- 2009-02-06 CN CN200980104521.9A patent/CN101939583B/zh active Active
Also Published As
Publication number | Publication date |
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US8556471B2 (en) | 2013-10-15 |
CN101939583B (zh) | 2015-04-08 |
CN101939583A (zh) | 2011-01-05 |
KR101212911B1 (ko) | 2012-12-14 |
KR20100116628A (ko) | 2010-11-01 |
WO2009098081A1 (fr) | 2009-08-13 |
DE102008007723A1 (de) | 2009-08-20 |
EP2250428A1 (fr) | 2010-11-17 |
US20110110083A1 (en) | 2011-05-12 |
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