FI123457B - Reflector and this utilizing lighting device - Google Patents

Description

Reflector and lamp using it

Background of the Invention

The invention relates to a reflector according to the preamble of independent claim 1.

Various types of luminaires are known in the art which produce radiation falling within the wavelength range of the visible spectrum of electromagnetic radiation to the human eye, for use both indoors and outdoors.

In many cases, the low efficiency of the radiation source has been problematic, that is, only a small part of the energy supplied to the radiation source is converted into radiation suitable for illumination 10. An example of a low efficiency radiation source is a conventional incandescent lamp. The efficiency can be increased by using different special lamps and fluorescent lamps in the luminaires, which, thanks to special solutions, have even increased the efficiency compared to the incandescent lamp. Electronic components, on the one hand, and filler gases and wavelength-modifying coatings, on the other hand, have further increased the efficiency of 15 for gas-filled lamps, but quite often with conventional light sources, the on time, the structure of the lamp. The lamp can also become very hot during use, which also contributes to the stress of the lamp itself, as well as of the lamp mount and any shield structures.

Solutions to the above-mentioned prior art problems have been sought, for example, by the development of semiconductor LEDs (Light Emitting Diode) and $ 2 based on them. This results in a significant improvement in the efficiency, lifetime, temperature, and ignition time of the light source. A problem though

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o 25 in some applications, the directional characteristic of the LEDs may be formed, which may cause uneven distribution of light in the large object being illuminated and / or also result in glare in illuminated objects where the person working or otherwise o has to look directly in the direction is lighting

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2) the strongest. There is also the problem with incandescent bulbs and gas-filled lamps.

σ> § 30 It is also problematic that indirect illumination used to avoid glare

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Yes, it reduces glare, but on the other hand, depending on the structure and roughness of the surface to be illuminated, also absorbs some of the radiation, affecting the illumination. At the time of the priority date of the present application, the Applicant is not aware of any publicly known lighting technology which, in a controlled manner, can provide uniform illumination at a high light source efficiency within a short light source ignition time.

US 2009/0141513 defines a plurality of divergent radiation geometries and their respective passages of light rays from surfaces as such which are curved. EP 1300 626A2 describes a headlamp per se, the reflector of which is presented in a different shape but is faceted in itself, with the faceted parts arranged in a radiation-scattering convex curvature geometry. However, each of the aforementioned patent documents is limited to the preamble of the independent claims to the reflector and to the luminaire.

Brief Description of the Invention

It is an object of the invention to solve, or at least alleviate, the above-mentioned prior art problems for providing uniform lighting indoors and / or outdoors.

The object of the invention is achieved by a reflector according to independent claim 1.

Preferred embodiments of the reflector according to the invention are set forth in the dependent claims 2 to 6, 27, 29, and 34.

The invention also relates to a lamp according to claim 7.

Preferred embodiments of the luminaire according to the invention are disclosed in the dependent claims 8 to 26, 28 and 35.

The invention also relates to a lighting system according to claim 30.

Preferred embodiments of the lighting system of the invention are disclosed in dependent claims 31 and 32.

The invention also relates to a control program for a luminaire control unit according to claim 33.

Preferred embodiments of the invention are disclosed in the dependent claims. Other preferred embodiments of the invention are also illustrated in the Examples and in the specification with reference to the figures. Embodiments of the invention are suitably combinable in one embodiment of the invention utilizing a directional correction of a light source such that, in the directions to which the light source emits radiation according to its radiation pattern, the radiation emitted by the light source is weaker. This is achieved by a reflector according to an embodiment of the invention.

Advantageously using, for example, LEDs in the luminaire's radiation source to produce light at high efficiency can then take advantage of the relatively strong directional dependence of the LED, even if the directional pattern is narrow. The structure of the reflector according to an embodiment of the invention is quite simple for LED based lighting solutions and thus the manufacture is relatively simple.

Based on embodiments based on the inventive idea, one skilled in the art could also apply it to radiation sources of complex directional pattern, 10 of which, however, are known per se to have a lower efficiency. The design of the reflector would then be potentially more complex, whereby the mounting accuracy would also be correspondingly higher than that of a luminaire having an LED light source using a reflector according to an embodiment of the invention. LEDs achieve a simple design that is both robust and easy to install and maintain.

Particularly in embodiments of the invention that use LEDs as the light source, the illumination can also be tinted using a plurality of LEDs suitable for the tinting color. Thus, according to an embodiment of the invention, the color rendering index can be corrected. By using a few, for example, red LEDs in the luminaire, the color rendering index of cold white LEDs can be significantly changed.

The color rendering index can thus be co-located with both outdoor and indoor luminaires.

Also, the color of the goggles which at least partially protect the reflector and the radiation source can tint the light of the luminaire, unless the loss of the glazing itself has a detrimental effect on the lighting application. Because LEDs also resist switching on and off in a very different way than traditional lamps and fluorescent lamps, they can also be powered by pulsing o 25 their power supply at sufficiently high frequencies, up to several kilohertz or even cm, so that the LED flicker is not detectable by the human eye. While achieving o CO power savings by influencing the illumination duration of a particular LED segment by pulse length cm x, pulsing can also equalize the cc 'instantaneous load of a large number of LEDs on the power supply. By segmenting the LEDs of the luminaire

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^ 30 sets which illuminate at one particular pulse when others do not illuminate can be adjusted

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g illumination power, when the light energy output of a segment is selected for each segment o c \ i different among segments within a plurality of segments. According to one embodiment of the invention, LEDs can also be used to implement luminaires that ignite and / or extinguish according to the movement of humans (including animals or machines).

4 In this case, for example, the entire street does not need to be lit at full power throughout the dark season. For example, electricity can be saved when a motion detector is used to control a luminaire according to an embodiment of the invention having a reflector according to an embodiment of the invention optimized to utilize a radiation pattern according to an LED array to provide uniform illumination in an area intended for illumination. Here, for sensible control of the lighting, it is useful to use a control program in the luminaire lighting system control unit that can control one or more luminaires with either a single sensor (or a plurality of sensors) to turn them on, extinguish and / or tint a luminaire. Control unit settings can also help maintain low-power general lighting, making it easier for passers-by to perceive their movement during otherwise dark hours. Here, for example, streetlights can maintain a light level of, for example, 20% when there are no passers-by on the street, but if a motion detector is detected by a motion detector, it will raise the light level at the passer if not to full power. Where appropriate, certain luminaires may also be switched off / on at a particular light level.

According to a preferred embodiment of the invention, the radiation source of the luminaire is arranged to be symmetrically positioned at the center of the radiation distribution point E of the reflector. According to one embodiment of the invention, the inserts in the transverse direction 20 can increase the illumination at the edges of the illumination vessel, but on the other hand, by excluding the inserts, a simpler structure can be obtained. However, the use of additional components can also improve the amount of illumination entering the illumination area, even if the power of the radiation source is reduced.

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T- List of patterns o

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In the following, some preferred embodiments of the invention are illustrated in more detail with reference to the accompanying drawings, in which Fig. 1 illustrates a preferred embodiment of a x reflector according to an embodiment of the invention. Fig. 2 illustrates a preferred embodiment of Fig. Fig. 3f illustrates some preferred embodiments of the lighting fixture according to embodiments of the invention, Fig. 4 illustrates a lighting system according to an embodiment of the invention, and Fig. 5 illustrates the lighting / 8, and a segmented light source unit according to an embodiment of the invention.

The dimensions and proportions in the figures are merely illustrative examples, and thus do not limit the embodiments of the invention to the values and / or proportions according to said examples only. Unless otherwise indicated, the same reference numerals are used where applicable. In this case, the references need not necessarily be exactly the same as understood by one skilled in the art from the context of the disclosed embodiment.

Detailed Description of the Invention

Fig. 1 shows a reflector according to an embodiment of the invention, consisting of at least one first part 101 and a second part 102 which are in direct contact with each other through a longitudinal curvature of curvature AB. The example of the figure also shows curved side portions 101a, 101b, 102a and 102b, 15 for even more even distribution of light from the light source, also in the transverse direction CD, FG. The reflector of the example in the figure can be made by a method known per se, for example by extrusion or injection molding, by arranging the reflector material (e.g., plastic) in the shape of the example in Fig. 1, after which the bursts are cut off. The reflector 20 may also be manufactured by forging and / or grinding or otherwise forcing it into shape. In this case, a method known per se for shaping the selected reflector material can be used to produce a reflector co according to an embodiment of the invention. The numbers 680 and 780 are examples of dimensions in millimeters without being limited solely to the dimensions or ratios mentioned.

According to Fig. 1, a reflector according to an embodiment of the invention comprises a burst lip 100, and other lip portions 100a illustrating manufacture by casting / pressing methods. Although the figure 1

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In the example, the casting is rectangular, the invention does not wish to be limited solely to the embodiment of the example shown in Figs. According to an embodiment of the invention

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o The lips 100 and 100a are removed during the manufacture of the reflector. In the figure, one edge leps of the lip 100 is marked. Its directional line and another lip defined by the edge ltks define a plane (leps, ltks) with which a plane perpendicular to AB when intersecting 6 reflector pieces at its first part 101 and second part 102 defines a longitudinal (AB) cross section and a longitudinal double curved profile having a curvature discontinuity at E. Said point E is a scattered formation between said first portion 101 and second portion 102. Point E appears to cut off the curved shape of the first part 101, but the shape of the reflector continues to curve in the area of the second part 102 according to its curvature. According to one embodiment of the invention, portions 101 and 102 are mirror-symmetrical with respect to E, but the invention is not intended to be limited thereto.

Figure 1 also shows a direct CD through which a plane perpendicular to the plane (leps, ltks) defines the transverse curvature of the first portion 101 of the reflector by means of a cross-section of the reflector. Similarly, at the dome, Figure 1 also shows a straight line FG through which a plane perpendicular to the plane (leps, ltks) defines the transverse curvature 15 of the second portion 102 of the reflector by means of a cross-section of the reflector at the dome. Although the curves in the example of Fig. 1 are shown in the transverse direction to be almost identical in numerical accuracy, the embodiments of the invention do not wish to be limited to the same curves but may be different, even outright different, to produce different illumination in the area illuminated by Also, the longitudinal curvature of the parts 101 and 102 need not be the same with each other, although the example in the figure suggests so. Although Figure 1 shows a different longitudinal curvature than a transverse curvature for parts 101 and 102, the invention is not intended to be limited to the example shown, but according to one embodiment of the invention they may be the same or approximately the same.

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cvi The side portions 101a and 101b may be paired symmetrically, respectively, o on either side of the first portion 101 in transverse direction CD. Side sections 102a and 102b

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Where appropriate, x may be evenly symmetrical on both sides of the second portion 102 in the transverse direction FG. There is a discontinuity between the side portion 101a, 101b and the portion 101 (respectively the portion 102 and O) Γ "- 30 of the side portion 102a, 102b) according to an embodiment of the invention.

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g. According to another embodiment of the invention, said discontinuity is rounded, and according to a variant thereof, faded to blend into the curvature of portions 101 and side portions 101a, 101b (respectively, portion 102 and side portion 102a, 102b) to modify transverse direction of illumination. In the embodiments of the invention, the curvature of the side portions 7 is not limited solely to those shown in Figure 1, but may also be other types as appropriate. According to one embodiment of the invention, radiation sources can be mounted at the points of discontinuity of the side portion to provide illumination.

According to an embodiment of the invention, the longitudinal direction AB

the longitudinal curvature and / or the transverse direction CD, FG has a transverse curvature of one of the following: rock section shape, exponential curve shape, logarithmic curve shape, progressively changing arc shape, where the curvature of the arc increases or decreases as it moves between the ends of the arc. The curvature itself is inversely proportional to the 10 radii of curvature. According to an embodiment of the invention, the longitudinal and / or transverse curvature and thus the corresponding curvature radii are determined by the shape of the area to be illuminated, the directional pattern of the radiation source and the operating height, based on the principles of geometric optics.

According to an alternative embodiment of the invention, the first part and the second part of the reflector 15 integrally integrate into the same semi-tubular shape where the discontinuity point E is a conical vertex as a center of rotation as the longitudinal (AB) profile cross section line rotates through the semiconductor E. In this case, the reflector is better suited as part of the lamps used to illuminate circular areas than the reflector of Fig. 1 20. Preferably, the radiation source is also rotationally symmetric, although not exclusively limited thereto. According to one embodiment of the invention, the reflector or part thereof is made of a material comprising the reflector material by a method known per se to give a certain shape to a thin material body having a material thickness which is remarkably small in relation to other dimensions. In this case, for example, injection molding, injection molding and / or molding and vacuum molding are suitable, as are mechanical pressing against the mold <x, as suitable embodiments, as such or in any of them.

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x as such without limitation. In this case, thin in cc embodiments means a material strength of less than 10% according to one embodiment, but G)

Fj 30, according to another, less than 5% and a third less than 1% of the longest dimension determined by one level of the reflector in g (leps, ltks), measured directly over the reflector.

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According to one embodiment of the invention, a portion of the reflector is coated with a fluorescent material that emits visible light at a wavelength but receives the energy required for it from a shorter wavelength radiation emitted from 8 radiation sources. The coating can then be very thin to minimize losses and maximize the net benefit of the illumination gain achieved.

Figure 2 illustrates the use of a reflector according to an embodiment of the invention in a luminaire, as well as the operation of the reflector. The reflector is illustrated by a longitudinal cross-sectional profile taken in the 5-direction AB, whereby the side portions are not described for simplicity. The first portion 101 and the second portion 102 of the reflector communicate at a curvature discontinuity point E below which, viewed in the normal reading direction of the image, is the radiation source 210 itself to provide illumination. For example, the connecting and mounting piece 213 for connecting the radiation source 10 to the mounting time 214 may also comprise a control unit 400, and / or an energy source 402 with its connections. The mounting piece may also have a radiator of the radiation source, for example a passive cooling radiator or even a fan, which, however, consumes electricity.

Although the dimensions of Figure 2 directly illustrate the dimensions of the short-legged luminaire relative to the reflector (suitable for example the dimensions of a table and / or floor lamp, but also the dimensions of a short-legged outdoor luminaire), it is not desired to limit the embodiments of the invention solely to the dimensions As will be apparent to those skilled in the art, as shown in Figure 2, the mounting foot 214 and the height h2 of the luminaire from the mounting base 215 (ground / floor / other level, including the wall in one embodiment) can be dimensioned to match the dimensions of the street lamp.

20 The mounting foot dimension may be one of the standard dimensions known per se regarding the dimensions of the outdoor light. In order for the luminaire to be used outside the interior, the luminaire may be provided in such an embodiment for outdoor use. According to one embodiment, the module formed by the reflector and the radiation source (in one embodiment with radiators) is provided for installation both for indoor and outdoor use. The equipment may, where applicable, be in accordance with the applicable regional DJ standard. An illuminator according to one embodiment of the invention may also be used as an exterior light, although nothing in itself prevents an embodiment of the invention.

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x lamp, even if equipped

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also suitable for outdoor use. For example, suspended lighting solutions are suitable for indoor and outdoor use as well.

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g In Fig. 2, the radiation source 210 is at a distance h1 from the point of discontinuity E of curvature o cm (also point E below).

The figure illustrates a plurality of light beams, one of which goes in the direction of the arrow 212a, and is reflected in the direction of arrow 102 portion 212b to illustrate the direction away from the light source 9. Thus, even illumination is obtained when using a light source having a directional pattern as shown in Fig. 7, although the light source is not ideal as shown in Example 2. The direction 0 ° in Figure 7 is indicated in the figure by a thin arrow. One of the light beams are shown in the direction of arrow 211a to a leaving direction, the reflected portion 101, and continue to 5 illustrate the direction of the arrow 211b close to the light source.

By way of illustration, different light beams are drawn on the parts 101 and 102, but in practice a radiation source with a symmetrical directional pattern (Figure 7) also provides symmetrical reflection and uniform illumination within the luminaire sphere, while also having a curvature symmetry between the reflector parts.

Thus, according to one embodiment of the invention, by selecting the reflector part 101

and the shapes of the portion 102 such that their longitudinal curves are not symmetrical at E

with respect to E, a different distribution of illumination may be produced in the region of section 101 than in the region of section 102. In Fig. 2, point E is an arc as in Fig. 1, at the junction between parts 101 and 102.

Figures 3a-3f illustrate lamps (300, 301, 302) according to an embodiment of the invention having a reflector according to an embodiment of the invention.

The figures also illustrate variations in the installation of the luminaires, according to one embodiment, for placement on a wall, ceiling, floor / street. According to one set of variations, the luminaire (300, 301, 302) is fabricated for surface mounting, while according to another set of variations 20, the luminaire (300, 301, 302) is made to be completely or suitably immersed in the mounting base. Thus, in one of the embodiments of the invention, it may be necessary to mechanically shield the reflector and / or light source of the luminaire itself with a shield or, in some cases, even by casting the light source and reflector into a single piece, the luminaire module. In this case, the luminaire module may be bright or even slightly diffuse and / or scattering for some applications. It will be clear to one skilled in the art that in this case the connections for the energy source should be arranged o (£> to be connected, where applicable. According to one embodiment of the invention, the luminaire module cm x may also be hollow and suitably manufactured by a method known per se.

O) N · 30 Fig. 3a illustrates a lamp O) m g 300 according to an embodiment of the invention having a radiation source 210 at a distance h1 from o cm between the reflector parts 101 and 102, for the sake of simplicity.

In the example of a luminaire, a luminaire is a suspended luminaire, for example, suspended from a ceiling or wall arm by means of a chain, rod or a combination thereof. The illumination direction 10 is for "" Figure 3a "illustrated. Fig. 3b otherwise illustrates, where applicable, a luminaire similar to that of Fig. 3a, but in the opposite direction, for indirect illumination. Fig. 3c illustrates a recessed luminaire 301, which, where applicable, is otherwise similar to the luminaire 300 shown in Fig. 3a 5, but made either recessed or surface mounted. According to one embodiment, the method of mounting the luminaire 301 can be selected when the mounting module is made so that it can be either recessed or surface mounted. According to one embodiment of the invention, the mounting module comprises a reflector according to an embodiment of the invention and a radiation source for mounting a lamp according to an embodiment 10 of the invention. Fig. 3d illustrates otherwise a lamp similar to Fig. 3c, but with the illuminator 302 arranged for indirect illumination, whereby the primary illumination direction from the reflector is illustrated away from the text of Fig. 3d.

Fig. 3e is illustrated at the end of the post T by the nose O1, 02

15 luminaires 300 for installation. The luminaire 300 may be integral with the OI

luminaire for installation or for mounting on a hanging geometry in ore 02 by means of a rod, chain or a combination thereof. Although there are two perches in the example of the figure, in the embodiments of the invention, it is not intended to be limited to the example of only two perches, but the number of perches may be one, three or even more in some other embodiments. Although the rows are drawn in a horizontal direction, or perpendicular to a pillar, in the embodiments of the invention, it is not intended to be limited to the exemplary mutual arrangement of the nose and pillar. By choosing a height h3 suitable for the application, heights which are suitable for different embodiments can be obtained for both indoor and / or outdoor lighting.

Fig. 3f illustrates a type of luminaire for surface, street and / or floor installation, although (Figs. 3a-3f illustrate the luminaire by a dashed line), according to one embodiment of the invention, the dashed line may also illustrate a luminaire cc. but not limited to the exemplary rectangular O) 30 cross-section shown in the example, m σ> Figure 4 illustrates exterior lighting by means of a lamp according to an embodiment of the invention, oo cm. According to an embodiment of the invention, the lighting system comprises at least one lamp 300 according to an embodiment of the invention. A street lamp with a lamp 300, 301, 302 is illustrated with the help of a pillar T and an oblique nose O.

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The street lamp itself may also be of the type shown in Figure 2. In Fig. 4, a control unit 400 is connected to a street lighting installation time of the lighting system, a pole, a control unit 400. In another street lighting installation time of the lighting system, a pole, 5 is connected to a power source 402. The street lamp 300C is tinted in Fig. 4 using a set of colored LEDs to shade the light, among other LEDs in the radiation source. Corresponding tinting according to an embodiment of the invention may also be used in indoor luminaires. Although Figure 4 illustrates, by way of example 10, a system showing only lamps according to an embodiment of the invention, the embodiments of the invention do not wish to exclude from the scope lighting systems which include conventional street lamps in addition to the street lamp according to embodiments of the invention.

Figure 5 illustrates the control provided by the control unit 400 and the structure of the control unit. According to an embodiment of the invention, the control unit 400 has at least an interface for one of the control means: - a clock 501 arranged for time control, - a light sensor 502 tracked for lighting control, 20 control output 505 to provide external control, - control input 507 to provide external control, - power source control regulator for controlling a lantern energy source o 25,

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c \ j - a service interface 506 for modifying software according to the control criteria of controller 400, and

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x - transceiver means for communicating control settings 508 with some other luminaires, O)

Ej 30 to control the production of light according to the ambient light.

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According to one embodiment of the invention, the control unit has a plurality of control means, the set comprising means for providing time control 511, means for providing light control 512, means for providing motion control, and means for providing oa control according to external control.

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The microprocessor μΡ controls the operation of the control unit by means of a control program, which is stored in the memory available to the processor and can be updated via the service interface 506. According to an embodiment of the invention, the service interface may be controlled by means of transceiver means 508. These may be wired, or wireless, as appropriate. The control unit can then be arranged to be updated by means of RF transmission, utilizing radio frequencies for their utilization according to the state of the art. In this case, several updates can also be made from the control unit, but others can be selectively omitted. According to one embodiment of the invention, in a plurality of control units, each control unit is designated digitally. In this case, it is also possible to upgrade the control unit from control unit to control at least one lamp using a digital signal in a manner known per se. The luminaires can also be named, whereby the control unit can point to a particular luminaire and tell it to turn on / off according to the control program settings.

The control output is the output for the output signal. The control input is for the incoming control signal 15. The control input is distinguished from the slave control in the example because, according to one embodiment, the control input control is, for example, regionally valid (e.g. deviations based on sensors of their own control unit. This can also save electricity. In the example, the slave control again switches the lights on the control unit's control unconditionally to operate according to the slave control signal. The I / O illustrates a controller that controls the inputs and outputs of the control unit according to microprocessor functions to control the lighting and / or update the control unit. The HIC illustrates a controller for switching the high-current range cj to voltages and / or currents as required by the luminaires. The parts of the control unit φ may be integrated, where applicable. At least some of the parts of the controller unit may comprise c / x program parts cc

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σ> ö '30 There is an energy source for a luminaire according to an embodiment of the invention

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g is illustrated in Figure 6. The luminaire is then provided with an energy source 402, S comprising at least one of: - a battery 601, - a solar cell 602, 13 - a fuel cell 603, - a wind generator 604, - a mains electrical connection 605, - a combination.

5 When using LEDs to provide illumination as radiation sources, a high efficiency can be achieved, whereby even a solar cell may in some cases be suitable for use as an energy source for charging batteries when the lamp is off. Specifically, if the reflector surface could be made of a solar cell material, the non-reflective surface of the reflector could then be utilized in single-directional luminaires, but not so much in dual luminaires having two opposite luminaires 300 for opposite directions. In some cases, it may also be possible to use the wind to rotate the generator and thus charge the street lamp batteries during the day. The fuel cell may also be useful in some special circumstances for generating electricity according to one embodiment. For example, as a back-up power source for power outages, a fuel cell and / or a combustion engine assembly may be advantageous for critically illuminating objects suitable for illuminating objects. Also, according to one embodiment, the energy source may be a conventional mains power line or a three-phase power line, but also another power line designed specifically for LEDs.

Figure 7 illustrates a symmetric light distribution curve for a radiation source.

Fig. 8 illustrates a co-25 radiation source 210 suitable for one embodiment of the invention. It exemplifies a radiation source 210 having LEDs 803, cm 805. LED 803 is a colored LED to provide light shading. According to one embodiment of the invention, all the LEDs in the radiation source segment are similar ci x within a given manufacturing tolerance. According to one embodiment of the invention, the cc radiation source has only one segment, but according to another embodiment, O c) at least two or more. The dashed line illustrates a set of colored LEDs 803 mg 804. The set 804 can be controlled by the control unit's control means o cm if necessary independently of the other LEDs and / or the segments formed by them. LED segments 801 and 802 may also be turned on or off according to the control provided by the control means of a control unit. The number of LEDs in the radiation source and / or 14 segments is not intended to be limited solely by the example shown, nor is the placement of the individual LEDs relative to each other and the segment, or the shape of the LED array solely by the example shown. The LED array can also be rotationally symmetric. According to one embodiment 5, the LEDs of a functional segment may be distributed as a segment to other different segments, for example in terms of shading. According to one embodiment, some segments may be slightly spaced apart. According to one embodiment, the LEDs in the segment are randomly or semi-randomly distributed within the LED array. According to one embodiment of the invention, the LED array of the luminaire is divided into segments.

According to one embodiment of the invention, the segments may be of the same size, categorized by the number or power of the LEDs, but also arranged to provide different luminous efficacy with the luminaire when power is applied to certain segments to achieve luminous efficacy according to controller settings.

Example 1

One lamp according to an embodiment of the invention is arranged as a street lamp. In this case, the control unit can be used to turn the radiation source 210 on and off arbitrarily, even at a frequency of kilohertz, whereby the human eye does not notice flicker of light. The pulse length and / or distance to the next pulse, the pulse ratio, can be adjusted to suit. The pulses 20 may also be targeted to specific segments of the radiation source by control provided by the control unit. In pulsed power supply, different LED segments of the radiation source can be used alternately to provide illumination, whereby the wear of the individual LEDs, even if negligible in itself, would be more even. At the same time, the differences between the LEDs can be evened out. This will also allow the power consumption and instantaneous load of the power supply to be equalized closer to the average.

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cm Not all LEDs need to be lit in the summer, even in the winter. In this case, the signal from the light sensor can be used to measure the illumination and adjust the illumination.

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x under control. The clock of a luminaire control unit can be used to adjust the cc so that the lighting is on at a specific time, for example in Helsinki CT)

Ej 30 in winter afternoon from 15: 00-9: 00 but in summer the light is on from 23:30 m g to 3: 30. Similarly, in the northern part of the Rovaniemi Arctic Circle, during the summer, no night lighting is required for a certain period of o cm, while in winter the lighting can be set to work even at daylight. This can be achieved when a suitable calendar function 15 is also performed by means of the control unit clock, but also by using a certain illumination threshold for the light sensor, below which it is illuminated but not above. According to one embodiment, there may even be several thresholds to achieve multi-stage illumination. The criteria for implementing the illumination can be arranged in logical conditions into successive gates, whereby the combination fulfilling all 5 conditions only provides a signal to the illuminator in the control unit.

According to one embodiment, the motion detector of the control unit is arranged to detect motion of at least a small pedestrian object in its detection area and to provide a control signal to the control unit which turns on the street light source segment 10 if i) the time of day, ii) the right ambient light; ) There is sufficient current in the lamp's power supply. This allows the timer to be left on for a certain amount of time. In this case, the control unit can also control other street lights on the near-bypass, which light up when the pedestrian passes. Motion detectors can detect the direction of a pedestrian's movement, and thus turn off 15 unnecessary upstream streetlights after a predetermined period of time unless the motion detector detects other movement in the area. This allows you to save electricity, especially in times when there are few people moving, that is, until evening. Because the street lamp according to an embodiment of the invention has a lamp according to an embodiment of the invention and has a reflector according to an embodiment of the invention, uniform street lighting 20 is obtained because the luminaire's radiation source has a number of LEDs which operate immediately and achieve full luminous intensity in fractions of seconds. The individual LEDs on / off can be controlled by segment in the control unit that controls the street lamp. The lighting can be tinted and even changed with a single lamp. Particularly indoors, tinting can be beneficial, for example to provide mood lighting.

cm According to one embodiment of the invention, the passage of a pedestrian on the street is predicted by <£> controlling by means of the lighting system control unit those in the estimated direction of travel.

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x luminaires for a higher light level, cc ° · Although the street lighting of the embodiments of the invention has been described by way of example above, the example may also be applied, where applicable, to indoor luminaires. Especially g in livestock buildings and / or warehouses. But also for alarm devices and systems that turn the lighting on and / or off.

In certain situations, a conventional street lamp with a gas-filled light bulb would not even light up properly when it should have already turned off / adjusted to a certain 16 light levels after a pedestrian had passed. A conventional street lamp would also suffer from continuous ignition and extinction functions, and its lamp would last considerably shorter in operation than continuous operation, while an LED-based radiation source would by far outperform continuous ignition and extinction without the need for a separate lighter. In addition, the illumination uniformity of the illuminator according to an embodiment of the invention is improved in its illumination area than with a conventional street lamp in its illuminated area.

Example 2.

The radiation source of the luminaire according to an embodiment of the invention is ideally near-dot, whereby at E, light can be distributed through a symmetrical reflector according to an embodiment of the invention to each point of the luminaire area directly accessible as such. The illuminator according to an embodiment of the invention then illuminates the area where all points 15 of the region receive light from the illuminant source, whereby the effect of the individual LEDs is evened out in the illumination of the region. In this case, tinting by colored light sources also applies to the entire area, which is thus illuminated by tinted light, without the illuminated area having harmful or otherwise different spots in the illuminated area caused by direct light sources. In practice, the ideal case according to Embodiment 20 of the invention can be approximated by a suitable radiation source having symmetry with respect to the radiation distribution point E. The symmetry may be mirror symmetry, but also, particularly in an alternative embodiment, rotation symmetry, but not limited to said embodiments per se. Thus, according to an embodiment of the invention, the segments and / or portions thereof in the geometry of the radiation source can be positioned there so that the conditions of the ideal case c1j can be achieved with sufficient accuracy in the illumination area. Hereby, tinting can also be accomplished with a sufficient accuracy so that the human eye does not perceive the tinting to cause the area illuminated by the light source to differ from the illuminated area in a color other than the other portions cc in the same area.

On the other hand, in some embodiments an asymmetric radiation source may be provided

LO

The use of g also affects the tone enhancement of certain portions of the illuminated area when the oj segmentation and placement of colored light sources are similarly performed.

The location of the segments can thus be utilized within certain limits to provide variable illumination.

17

According to an alternative embodiment of the invention, the curvature of the first part differs from the curvature of the second part in the reflector. In this case, illumination with a different light level per se can be achieved in those areas of the illumination area that receive their light mainly through either the first or the second part. Furthermore, the coating of the reflecting surface of the reflector 5 may have some effect on the local uniformity of the illumination in the illumination area and / or a portion thereof. Hereby, by leaving some parts of the reflector portion of the reflector uncoated or otherwise being treated as reflective, variations in the illumination area of the luminaire using such a reflector can be obtained. According to one embodiment of the invention, the shape of the inserts can also influence the shape of the illuminator, whereby the insertion of symmetrical transverse directions also results in a symmetrical illuminator, but by changing the symmetry and / or omitting some inserts,

It will be obvious to a person skilled in the art that as technology advances, the basic idea 15 of the invention can be implemented in many different ways. Thus, the embodiments of the invention are not limited to the examples described above, but may vary within the scope of the claims.

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Claims (35)

17 A reflector (101, 101a, 101b, 102, 102a, 102b) having a double curved structure such that, in one of the longitudinal directions (AB), the first portion (101) of the reflector has a first longitudinal curvature and the second portion (102) of the reflector a second longitudinal curve, wherein a curvature discontinuity (E) is provided between said reflector portions (101, 102) to serve as a radiation dividing point for distributing radiation emanating from a radiation source 10 located at a first distance to the first (101) and second portion (102); AB) in a manner according to the radiation pattern of the radiation source, such that the radiation emitted in the direction of the strong radiation of the radiation pattern is arranged by the reflector to reflect away from the radiation source than the radiation emitted in the direction of the weak radiation of the radiation source; the first portion (101) has a first transverse curvature perpendicular (CD) to said longitudinal direction (AB), and wherein said second portion (102) has another transverse curvature (FG) to said longitudinal direction (AB), to direct radiation propagating in the transverse direction (CD, FG) farther from the radiation source than the radiation emitting in the direction of weak radiation. A reflector according to claim 1, characterized in that the double curved structure C 1 J q 25 further comprises at least one additional part (101a, 101b, 102a, 102b) having a curvature CvJ ≤ at least one of said longitudinal direction (AB) and transverse direction α (CD). , FG). CC A reflector according to claim 1 or 2, characterized in that said first longitudinal curvature of the first portion (101) is different from said second longitudinal curvature of the second portion (102) to produce a different distribution of the first portion ( 101) as with the second part (102) in the longitudinal direction (AB). 18 A reflector according to any one of claims 1 to 3, characterized in that said first transverse curvature of the first part (101) is different from said second transverse curvature of the second part (102) to produce 5 different distributions by the first part of the reflector. transverse direction (CD, FG). A reflector according to any one of claims 1 to 4, characterized in that at least one of said longitudinal and transverse curves has a constant curvature. A reflector according to any one of claims 1 to 5, characterized in that the transverse curvature of the reflector (CD) or the longitudinal curvature of the reflector in the at least first portion (101) is equal to the transverse curvature (FG) of the reflector. 102). Luminaire, characterized in that the luminaire (300, 301, 302) has at least one LED radiation source (210) positioned at the radiation distribution point (E) of any of the reflectors (101, 102) according to any one of claims 1 to 6. Luminaire according to Claim 7, characterized in that in the luminaire (300, 301, 302) the radiation source (210) comprises a plurality of (801, 802, 804) LEDs, the set of which comprises at least one LED (805). cm 25 cm Luminaire according to claim 8, characterized in that the plurality of (801, 802, 804) LEDs (803, 805) in the luminaire (300, Y 301, 302) further comprises a subset of colored LEDs (803) of the luminaire (803). 300, 301, 302) the color of the lighting £. σ> 30 n- <J) g) Luminaire according to any one of claims 7 to 9, characterized in that the luminaire (300, 301, 302) has a control unit (400) for switching on and off the lighting according to the criteria set for the control unit (400). 19 Luminaire according to Claim 10, characterized in that the control unit (400) of the luminaire (300, 301, 302) comprises at least one control means of: - a clock (501) tracked for time control, - a light sensor (502) and lined for light control, 5. a motion detector (503) arranged for motion-based control, - slave control means (504) for operating according to external control, and - control output (505) for external control, - control input (507) for external control, for controlling, - a service interface (506) for modifying software according to the control criteria of the controller (400), for transmitting / receiving means (508) for communicating the control settings with some other luminaire control units, for controlling 15 light production according to ambient light. a. Luminaire according to any one of claims 7 to 11, characterized in that the luminaire (300, 301, 302) is provided with an energy source (402) comprising at least one of the following: 20 battery (601), - a solar cell (602), - a fuel cell (603), - a wind generator (604), - a mains electrical connection (605), c / j 25 - for a combination of the two for producing lighting. δ c \ j O Luminaire according to any of the preceding claims 7 to 12, characterized in that the longitudinal direction (AB) of the luminaire (300, 301, 302) is tracked perpendicular to a cross section of the street (403) for street lighting, of Luminaire according to any one of claims 7 to 13, characterized in that the height (h1, h2, h3) of the radiation source (210) is arranged to provide a certain intensity of illumination at a horizontal distance 20 from the mounting location of the luminaire (300, 301, 302). to the substrate, to reflect light from at least one of the first (101) and / or second portion (102). Luminaire according to any one of the preceding claims 7 to 14, characterized in that said luminaire (300, 301, 302) has said radiation source (210) and / or a reflector (101, 102, 101a, 101b, 102a, 102b) mounted on the wall. for installation. Luminaire according to any one of the preceding claims 7 to 15, characterized in that said luminaire (300, 301, 302) has said radiation source (210) and / or a reflector (101, 10 102, 101a, 101b, 102a, 102b), for installation. Luminaire according to any one of the preceding claims 7 to 16, characterized in that in the luminaire (300, 301, 302) the installation of the radiation source and / or reflector is followed by a post (T) having another height (h3) and / or with the handle (01, 15 02). Luminaire according to any one of claims 7 to 17, characterized in that it is arranged to function as an interior luminaire. Luminaire according to any one of claims 7 to 18, characterized in that it is arranged to function as an outdoor luminaire. Luminaire according to any one of claims 7 to 19, characterized in that the radiation source (210) comprises a plurality of light sources (805). c \ j 25 Luminaire according to claim 20, characterized in that at least one subset (802) of the radiation source (210) of the luminaire (300) i Y is mapped to a plurality of radiation sources having at least one radiation source, such that g) said subset of radiation sources is arranged to be controlled by the control unit (400) o) 30 independently of other (801) lamp sources and / or other subsets (801, 803) formed by them. o o CVJ 21 Luminaire according to claim 21, characterized in that one of the subsets of the radiation source of the luminaire (300) is tracked to be controlled by a plurality of control means including at least one control means according to claim 12. Luminaire according to claim 21 or 22, characterized in that a first subset (801) of the luminaire (300) is sequentially illuminated during a time interval when another subset of the radiation sources is unlit (802). Luminaire according to Claim 23, characterized in that said time interval is dimensioned to a pulse supplied to said subset by one of the first subset (801) to illuminate the radiation sources. The luminaire of claim 24, characterized in that said time interval is different from the size of said pulse supplied to said subset 15 to illuminate the radiation sources of another subset (802). Luminaire according to any one of claims 7 to 25, characterized in that at least one curvature of the first part of the reflector is different from a curvature of the second part, wherein the curvature of the first part is a longitudinal (AB) curvature, transverse (CD) curvature and the curvature of the second portion is one of a longitudinal (AB) curvature, a transverse (FG) curvature. A reflector according to claim 2 or 3, characterized in that, in its double curved structure, one of its longitudinal direction (AB) has a first longitudinal curve (101) and a second reflector? the portion (102) has another longitudinal curvature, wherein a curvature discontinuity (E) is provided between said reflector portions (101, ^ 102) to operate | as a point of radiation, for distributing radiation from an o) 30 radiation source mounted at a first distance between the first (101) and O) g second portions (102) of the reflector, illuminated in the longitudinal direction (AB) by the radiation pattern the reflector is imaged by reflector to reflect further away from the radiation source than the radiation emitted in the direction of the weak radiation of the radiation pattern of the radiation source, said 22 reflector being one-piece such that said first portion and second portion is arranged to be used to provide a circular symmetrical illumination area by means of a radiation source mounted on the spot. Luminaire according to any one of claims 7 to 25, characterized in that it has a reflector according to claim 27. A reflector according to any one of claims 1 to 4, characterized in that at least one of the curvature of the first portion and / or the second portion is imaged in the region of said portion by a continuously variable function to produce illumination of a portion of the illuminated portion. Luminaire system, characterized in that it comprises at least one (300, 300C) luminaire according to any one of claims 7 to 26 or a luminaire according to claim 28. A lighting system according to claim 30, characterized in that one of the luminaires according to one of the preceding claims 7 to 26 or the luminaire according to claim 28 is arranged to receive control from another luminaire in the system. Luminaire system according to claim 30 or 31, characterized in that one of the luminaires according to one of the preceding claims 7 to 26 or the luminaire according to claim 28 is arranged to provide a control signal to one of the other luminaires of the system. CD Criteria for controlling a luminaire according to any one of claims 7 to 26 or a luminaire according to claim 28 having at least one LED, a control unit S, a computer-readable / readable medium, an oo luminaire and / or luminaire control means. to determine the amount of lighting, its timing and / or control. 23 A reflector according to any one of claims 1 to 6 or a reflector according to claim 27, characterized in that the curvature of the reflector is adapted to modify the radiation distribution of an LED radiation source for uniform illumination 5. Luminaire according to any one of claims 7 to 26 or a luminaire according to claim 28, characterized in that the curvature of the reflector is adapted to modify the radiation distribution of an LED radiation source for uniform illumination 10. CM δ CM o σ> X cc CL σ> N- σ> m σ> o o CM 25