EP2005799A1 - Commande de la temperature de couleur et de la localisation chromatique d'une lampe - Google Patents

Commande de la temperature de couleur et de la localisation chromatique d'une lampe

Info

Publication number
EP2005799A1
EP2005799A1 EP07723821A EP07723821A EP2005799A1 EP 2005799 A1 EP2005799 A1 EP 2005799A1 EP 07723821 A EP07723821 A EP 07723821A EP 07723821 A EP07723821 A EP 07723821A EP 2005799 A1 EP2005799 A1 EP 2005799A1
Authority
EP
European Patent Office
Prior art keywords
color
colors
light
color temperature
control signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07723821A
Other languages
German (de)
English (en)
Other versions
EP2005799B1 (fr
Inventor
Günther SEJKORA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZUMTOBEL LIGHTING GmbH
Original Assignee
Ledon Lighting GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ledon Lighting GmbH filed Critical Ledon Lighting GmbH
Publication of EP2005799A1 publication Critical patent/EP2005799A1/fr
Application granted granted Critical
Publication of EP2005799B1 publication Critical patent/EP2005799B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light

Definitions

  • the present invention relates to a method for providing control signals for a variable in their color or color temperature lamp. Moreover, the invention relates to a corresponding control device and a corresponding illumination system.
  • a light source generally emits light that is not monochromatic, but has a more or less broad wavelength spectrum. Therefore, in general, the color of this light can not or insufficiently described by specifying only one wavelength.
  • One way to at least approximately comparatively simply specify the color of the light is to specify the temperature of a black body that this black body would have to shine in a color that is equal to the color of the light source to be described, or at least that color comes as close as possible.
  • This temperature is commonly referred to as “color temperature” or “most similar color temperature”.
  • CIE CIE standard color chart
  • CIE-LAB color space or the "CIE-LCH color space”.
  • CIE-LCH color space In such a coordinate system can be set with the coordinates of a "color point" that indicates a particular color.
  • Fig. 2 is very schematic and simplified (perforated as black and white representation) the aforementioned standard color chart according to CIE, 1931 is shown.
  • the coordinates are usually denoted by x and y.
  • a point ⁇ x, y) in the diagram thus indicates a color location that has a certain color features.
  • the monochromatic colors lie along an approximately horseshoe-shaped edge region, the spectral line. In some places of this edge region, the corresponding values of the associated wavelengths in the unit nanometer (nm) are entered in the representation of FIG. 2.
  • lamps are known from the prior art, with which - regardless of the color temperature - light can be radiated in different colors.
  • these lights have three different light sources, with each of which light of a particular color can be generated.
  • the brightness of the three light sources are independently adjustable, so that it is possible to produce a corresponding mixture. In this way, light can be produced in different colors with the lamp.
  • the three colors of the three light sources in the standard color chart may be given as three color loci that span a triangle in the underlying coordinate system.
  • the present invention has for its object to provide a control of a lamp, as well as a corresponding control device and a corresponding illumination system, with or with which the setting is facilitated to a certain desired light impression.
  • a method for providing control signals for a luminaire which can emit light of different colors.
  • the method has the following steps a) and b): a) In consideration of a first color locus, which identifies a first color, and a second color locus, which identifies a second color, which differs from the first color, is considered the two following conditions i) and ii) - a color locus to be determined which identifies a further color is determined.
  • the first condition i) is: The color locus to be determined lies in a coordinate system representing the color loci together with the first and the second color loci at least approximately on a predetermined color change curve.
  • the second condition ii) is: The color difference between the first and the second color or an integer multiple of this color difference is at least approximately equal to the color difference between the first and the further color or between the second and the further color. Furthermore, the method comprises the following step: b) On the basis of the determined color locus, a control signal is generated, which causes the luminaire to emit light in the additional color corresponding to the determined color location.
  • color separation refers to a subjectively perceived difference between two colors, in particular between a first color of a first light and a second color of a second light Since color perception, as mentioned, is subject to individual evaluation, it is difficult or ultimately impossible to give an "exact” objective measure of the perception of a difference between two colors. In the present context, therefore, “color difference” denotes the subjectively perceived difference between two colors, which results on the basis of a "standard color vision", as can be determined, for example, with the aid of a normal observer.
  • the "color change curve” is, so to say, a path in the corresponding coordinate system, which in general does not necessarily have to represent a curve in the mathematical sense, but rather is a given curved or rectilinear line in the coordinate system.
  • a method for providing control signals for a luminaire which can emit light of different colors.
  • the method comprises the following steps a) and b): a) Depending on a first color locus, which identifies a first color, and a predetermined color distance is - taking into account the following two conditions i) and ii) - to be determined color location, which identifies a further color determined.
  • the first condition i) is: The color locus to be determined lies in a coordinate system representing the color loci together with the first color locus at least approximately on a given color change curve.
  • the second condition ii) is: The color difference between the first and the further color is at least approximately equal to the predetermined color spacing or an integral multiple thereof.
  • the method further comprises the following step b): On the basis of the determined color locus, a control signal is generated, which causes the luminaire to emit light in the further color corresponding to the determined color locus.
  • the given color change curve may be the Planckian curve.
  • the luminaire preferably comprises three luminous means, preferably LEDs or fluorescent lamps, which can shine in different colors.
  • the three colors can be colors whose corresponding color locations in the coordinate system span a triangle, which encloses the white point, for example, in the case of the standard color chart 1931 or a corresponding coordinate system.
  • the color change curve runs through the white point or through a "white area", whereby "white area” should designate a (small) environment around the white point, in which - again based on a standard color vision - with regard to the color impression the impression "white
  • a color change curve can be provided which, apart from one Change of direction in the "white area” - in a straight line.Thus, the effect can be achieved that a luminaire can be controlled in such a way that it emits light in a first color, this color turns more and more into white in uniform steps and finally into further uniform steps in a basically any other, second color passes.
  • the given color change curve may be a straight line.
  • the lamp advantageously has at least two lamps, preferably LEDs or fluorescent lamps, which can shine in different colors.
  • basically (only) two bulbs are required, provided that the color change curve is chosen such that these two bulbs can shine in two colors whose corresponding color loci are on the color change curve.
  • a series of at least three color loci is defined for whose three corresponding colors there is at least approximately an equal color difference between every two adjacent colors according to the color change curve.
  • a temporal control of the lamp is made such that the at least approximately equal color distances are traversed in each case in at least approximately the same time intervals.
  • the adjustability is further facilitated.
  • a coordinate system is selected as the coordinate system, in which a geometric distance between two color locations represents at least approximately a measure of a specific color distance, for example a so-called
  • a control device for providing control signals for a color changeable luminaire.
  • the control device comprises a) an input unit for input of input quantities, and b) a calculation unit for determining a series of at least three color locations, which identify three different colors, in FIG.
  • the color loci are selected such that they are at least approximately on a predetermined color change curve in a coordinate system representing the latter, and in each case at least approximately equal color separations are present between every two colors adjacent to the color change curve, and for the determination of
  • Control signals for the lamp with the aid of which the light can be made to emit light in the at least three colors (ie, meant for the emission of a first light of the first color, a second light of the second color and a third light of the third color, these three
  • the control device c comprises a transmission unit for transmitting the control signals to the luminaire.
  • the input sizes are either two different color loci or a color locus and a color difference.
  • the calculation unit is advantageously designed to use a method according to the invention as part of the determination of the control signals.
  • a lighting system which has a control device according to the invention, wherein the control device is connected to a lamp which is variable in color.
  • a method for providing control signals for a luminaire which can be changed in its color temperature.
  • the method comprises the following step: Determination of a color temperature setpoint value as a function of two different predetermined color temperature values, wherein the color temperature setpoint is selected such that the color difference between the two colors corresponding to the predetermined color temperature values or an integer multiple of this Color difference, at least approximately equal to the color difference between the color that corresponds to one of the two predetermined color temperature values and the color that corresponds to the color temperature setpoint to be determined, is.
  • a color temperature setpoint is established as a function of two different predetermined color temperature values, in short color temperatures.
  • this method it is possible to set different types of light with one lamp, the types of light each differing in their color temperature, in such a way that the differences between the types of light are perceived as equidistant or at least approximately equidistant with respect to their color.
  • Each step thus corresponds to a specific color difference, each of equal size, and thus an equal difference between the impressions which the two corresponding types of light produce in a viewer.
  • the invention according to this aspect uses the knowledge that a certain difference between two different color temperatures does not represent a measure of the associated difference in the light impression. A suitable measure of this is rather the so-called color difference of the light.
  • a method for providing control signals for a luminaire which can be changed in its color temperature.
  • the method comprises the following step: determination of a color temperature setpoint as a function of a predetermined color temperature value and a predetermined color distance, wherein the color temperature setpoint is selected such that the
  • Color difference between the color that corresponds to the predetermined color temperature value and the color that corresponds to the color temperature setpoint to be determined at least approximately equal to the predetermined color distance or an integer multiple of the predetermined color distance.
  • the lamp comprises three bulbs that can shine in different colors.
  • the three colors can be three colors which result in white in a composition or mixture.
  • it can be red, green, and blue.
  • the three bulbs LEDs or fluorescent lamps.
  • a series of at least three color temperature values is defined, for which three corresponding colors apply that there is at least approximately an equal color difference between each two adjacent colors.
  • corresponding color refers to that color in which a blackbody with the corresponding temperature is illuminated.
  • a colorimetry can be used, which is based on a defined "standard color vision”.
  • the corresponding color locations in the standard color chart can be calculated. Entering these color loci into the jt-y diagram of the standard color chart results in the so-called Planckian curve. This is shown schematically in the illustration of FIG. 2. In some cases, the respective color temperature values are entered here. By “neighboring" colors is meant to be expressed that these colors are adjacent to the Planckian curve.
  • Color temperature values Ti and T 2 with T 2 > Tj is determined, so for example, a set of three color temperature values are set, the two predetermined color temperature values represent the first two values of this series and the determined color temperature setpoint TS the third value T 3 of the series ,
  • the color temperature setpoint TS can be determined either by choosing the color difference between TS and T 2 as the color difference corresponding to the color difference between Ti and T 2 , or by the color difference between TS and Tj being equal to the color difference twice the value of this color difference.
  • Color coordinate system used in which a geometric distance between two color locations at least approximately represents a measure of a particular color distance value or short color distance.
  • a color coordinate system based on a "standard color vision" can be selected for this purpose, and such a color system is referred to here as "equidistant.”
  • the diagram of the CIE 1976 color chart is advantageously used as the color coordinate system.
  • control signals can then be formed in a known manner in a further step, with which the luminaire can be controlled in such a way that it emits light of the respectively corresponding color temperature.
  • a method for stepwise changing the color temperature of white light wherein all white light values in the two-dimensional color diagram (standard color chart) according to CIE 1931, DIN 5033 on the Plank 'see curve or in its immediate vicinity.
  • the coordinate system of the color diagram is transformed into another coordinate system, which is characterized in that the color distances between two color loci of the same geometric distance are subjectively perceived as approximately the same jumps.
  • a control apparatus for providing control signals to a color temperature variable light fixture comprising: an input unit for input of input quantities; a calculation unit for determining a series of at least three color temperature values depending on the input quantities; the
  • Color temperature values are selected such that they correspond to three colors such that in each case at least approximately the same color distance is present between each two adjacent colors, and to determine control signals for the lamp, with the aid of which the lamp for emitting light with the at least three color temperature values can be initiated, and a transmission unit for transmitting the control signals to the lamp.
  • the calculation unit of the control device is designed to use a method according to the invention within the scope of determining the control signals.
  • a lighting system which has the following: A control device according to the invention, wherein the control device is connected to a light which is variable in its color temperature.
  • an arrangement for stepwise changing the color temperature of white light which is produced by mixing color light of the colors red, green and blue.
  • the arrangement comprises at least three light sources, each of which generates light of one of the three said colors, and a control device which is connected to the light sources and generates separate control signals for the change stages corresponding thereto.
  • the control signals generated by the control device are of such nature that the color distance of the generated white light from one stage to the other is at least approximately always the same.
  • Fig. 1 is a schematic representation of an inventive
  • FIG. 3 is a simplified illustration of the CIE 1976 color chart.
  • Fig. 4 is a representation corresponding to FIG. 3 with a "color change curve"
  • Fig. 5 is a representation corresponding to FIG. 3 with a further "color change curve”.
  • the present invention relates in accordance with a first embodiment, the control of a lamp, with the light of different color temperature can be generated.
  • Fig. 1 is very schematically an example of an inventive
  • Outlined illumination system which is suitable for carrying out the method according to the first embodiment.
  • the lighting system comprises a control device 2 with a control device, a control line 4 and at least one lamp operating device 5 with three light sources 6, 7,
  • the bulbs 6, 7, 8 are designed to be in
  • the light source 6, 7, 8 for example, three light-emitting diodes
  • each of the LEDs can emit light of a different color, so that by appropriate Recsatzung white light of a particular
  • Color temperature arises. For example, red, blue and green can be selected as colors for this purpose.
  • control signals can be generated, with which the lamp 9 can be controlled such that it generates light of a specific color temperature.
  • the control device of the control unit 2 comprises an input unit for input of input quantities 1.
  • the input quantities 1 may in particular be color temperature values Ti, Ti and / or a color distance value or short color difference d.
  • the control device comprises a calculation unit with which a series of at least three color temperature values Ti, Ti, T 3 can be calculated. This calculation will be discussed in more detail below.
  • the calculation unit is designed to determine as output variables control signals which are suitable for driving the at least one luminaire 9 in such a way that it generates light with the at least three color temperature values Ti, T 2 , T 3 .
  • the control device comprises a transmission unit for transmitting the control signals to the luminaire 9.
  • two or more such lights 9 may be provided for the lighting system.
  • the control signals are used in a conventional manner to control the at least one lamp 9.
  • the control line 4 can be part of a bus system, for example, the DALI technology can be used (DALI: Digital Addressable Lighting Interface).
  • the corresponding setting value for the luminaire 9 or the three luminous means 6, 7, 8 is generated from the digital signal, which represents a specific color temperature value.
  • the central element of the invention which can be seen in the area of the calculation of the at least three color temperature values Ti, Ti, T 3 , is discussed in more detail.
  • two different color temperature values Ti and Ti are selected as input quantities 1.
  • the two intensity distributions I] (X) and I ⁇ ( ⁇ ) are then determined as a function of the wavelength ⁇ , which correspond to the respectively corresponding black body radiation, with the aid of Plank's radiation law.
  • Ii ( ⁇ ) thus denotes the intensity distribution of the radiation which a black body with the temperature Ti emits and h ( ⁇ ) that of a black body with the temperature T 2 .
  • the intensity distribution I ( ⁇ ) of the radiation of a black body can be stated in general formulated as known by Planck's law of radiation as a function of the temperature T as follows:
  • Ti denotes Planck's constant, c the speed of light, and k the Boltzmann constant.
  • the color impression is determined, which in the case of a person of normal color vision when looking at the visible portion of the radiation with the intensity distribution I] (X).
  • the same procedure is followed for Z 2 (A).
  • the intensity distribution I ( ⁇ ) is generally formulated as follows, with the sensitivities of the human eye for red, green and blue light y, ⁇ weighted:
  • this color chart is a color chart in which color spaces are at least approximately equal to the geometric distances between the corresponding color locations in the color chart.
  • the 1976 color chart more generally, is an "equidistant" chromaticity chart, also called the CIE UCS color chart (UCS: Uniform Chromaticity-Scale Diagram, CIE 1976).
  • the CIE 1976 color chart is not the only possible equidistant color chart or colorimetric. In principle, any other equidistant color representation can be used analogously in the context of the invention. In the exemplary embodiment given here, therefore, the CEE-1976 color chart is selected purely by way of example.
  • a first color locus (u 'u v'i) of the CIE 1976 color chart is calculated using the above equations, which describes the color of the blackbody radiation at the temperature Tj and analogously a second color locus (u' 2 , v ' 2 ) for the temperature Tz
  • the color difference d between the first and the second color location is then calculated. Since this color difference d is at least approximately proportional to the geometric distance between these two color loci in the representation of the CIE 1976 color chart, this can be calculated as follows from u '7, 2 and v' / , 2 :
  • the coordinates u 'and v' can be expressed as functions of the temperature T; also the function v '(u') can be formed, which results when specifying for a series of color temperature values. In this way you get the Plank 's curve, here for the CIE 1976 color chart. For Color temperatures T in the range between 1500 K and 10000 K are obtained in this way for v '(u'):
  • V 50OM '5 -875M' 4 + 61OM '3 -212,5M' 2 + 37,2K ' -2,27 (8)
  • one of the two color loci ie, for example, the second color locus (u ' 2 , v' 2 ) is assumed and a third color locus (u '3, v' 3) is calculated, for which it is valid from the second color locus (u ⁇ , v ' 2 ) has the color difference d and likewise lies on the Planckian curve, but differs in the corresponding color temperature value T 3 from the color temperature value T] corresponding to the first color location (u' / , v ' 1 ) equivalent. Due to the quadratic relationship, such a color locus is generally found on the Plank curve.
  • the associated color temperature which is referred to below as T 3
  • T 3 the associated color temperature
  • the color temperature value T3 can thus be referred to as the "color temperature setpoint" TS to be determined.
  • control signals are then formed in a manner known per se which can serve to activate the luminaire 9 in such a way that it generates light with the color temperature values mentioned.
  • a series of four or even more color temperature values can also be calculated, so that in general any desired range or interval of color temperatures and an arbitrarily accurate graduation can be achieved.
  • T 2 Temperatures Ti, T 2 , T 3 ... T 7 is the color temperature series: 2500 K, 2700 K, 3000 K, 3400 K, 4000 K, 4900 K, 6500 K.
  • a further color temperature value Tj can now be determined whose distance from Ti in turn corresponds to the color distance d, etc.
  • a sequence of n color loci (u ' ⁇ , v' ⁇ ), (u ' 2 , v ' 2 ), ... (u' n , v ' n ) are determined, for which applies that the perceived color difference, ie the color difference d between two successive or adjacent color locations is equal to the value d equivalent.
  • this sequence can be assigned a series of color temperature values Tj, T 2 ,... T n , for which therefore their corresponding colors each have an equal color spacing d have
  • the invention according to the above-described first embodiment is made possible for a luminaire, with which light of different color temperatures can be generated to provide a step-like adjustability, in such a way that with an adjustment between the individual stages of the impression that the light Observer conveys, each at least approximately uniform, ie proportional to the levels changed.
  • the adjustability significantly easier and faster, so be made more comfortable.
  • the second embodiment of the present invention relates to the driving of a lamp 9, which can emit light in different colors.
  • the illumination system corresponds - unless otherwise stated below - the system shown in Fig. 1, wherein the three bulbs 6, 7, 8 can generate light in three different colors.
  • light with a color can be generated in this case with the light 9, which is marked or represented within a triangle by a color locus in a corresponding coordinate system, in particular color diagram, whereby the triangle is spanned by those three color loci that correspond to the colors of the three light sources 6, 7, 8.
  • control unit 2 so control signals can be generated with which the lamp 9 can be controlled such that it generates light of a particular color, which can be characterized by a specific color location in a color chart.
  • the input quantities 1 can now be, in particular, color loci Fi, F 2 and / or a color difference d.
  • the control device comprises a calculation unit with which a series of at least three color loci F / , F 2 , Fj can be calculated.
  • the calculation unit is designed to determine as output variables control signals which are suitable for controlling at least one luminaire 9 such that it generates light in three different colors that correspond to the three different color loci Fi, F 2 , F 3 .
  • the starting point for this second exemplary embodiment is a basically freely selectable color change curve K1 between two color locations F A and F E.
  • FIG. 4 in which, as in FIG. 3, a simplified representation of the CIE 1976 color chart is sketched is.
  • the two color loci F A and F E are located within a color triangle D, which has three color loci as corner points, which correspond to the three colors of the three luminous means 6, 7, 8.
  • corner points are only sketched in principle and do not necessarily correspond to color locations for whose corresponding colors a respective luminous means actually exists in each case.
  • the color change curve K1 is selected as a straight line according to this embodiment. Therefore, depending on the location of the color loci F A and F E, the color change curve K1 can in each case be indicated either as v 'as a function of u' and / or as u 'as a function of v' in the mathematical sense. The corresponding mathematical function then allows an unambiguous description of all color loci that lie on Kl.
  • FIG. 4 shows a case in which five color loci F / to Fs, each having the same color spacing d, are formed as a series of color loci.
  • a series (F 1 ) of i color loci with ie X can be formed.
  • this series of color loci can again be determined on the basis of (only) a predefined color locus (for example Ff) and a predetermined color spacing d.
  • the color change curve can basically take any shape.
  • the color change curve will in each case also have sufficient accuracy, depending on the position of the color loci F A and F E in the mathematical sense can be described by a function v '(u') or u ⁇ v '), or, if necessary, by a function composed in sections of the last two functions.
  • the color change curve comprises two respective rectilinear portions which enclose a non-zero angle and which are connected to each other at one end.
  • the connection point lies in the white point or in the "white area" (as defined above) .
  • it is possible to control a corresponding lamp such that - starting from light of a certain color, the color is changed in uniform steps so far that a "white” light is produced and subsequently this white light in turn evenly spaced in light of a second Color is changed.
  • a straight line is again selected as the color change curve, but that connects two color locations whose corresponding colors can be formed by light in each case of a luminous means.
  • these two color loci are designated FLi and FL 2 and the corresponding color change curve K2.
  • the calculation method corresponds again to the last-mentioned embodiment.
  • a lamp 9 can be provided which has only two bulbs that can shine in colors that correspond to the color loci FLi and FZ 2 .
  • Color change curve K2 may be, for example, the first light emitting means to an LED that emits light of wavelength 480 nm, and the second light source to an LED that emits light of wavelength 600 nm.
  • a preferred option with regard to the timing of the luminaire 9 is that the color loci Fj, F 2 , F 3 ... of the row (Fi) are traversed in at least approximately equal time intervals. This makes it possible to generate or pass through the corresponding light row with only one operating movement for operating the control unit. In this case, it is unnecessary to initiate each individual color step individually. This makes the control even more comfortable. It is also advantageous in this case when the control unit is designed such that also the time interval between the individual color levels can be specified.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

La présente invention concerne un procédé pour fournir des signaux de commande pour une lampe dont la couleur ou la température de couleur est modifiable. L'invention concerne en outre un dispositif de commande correspondant et un système d'éclairage correspondant. Une série d'au moins trois localisations (F1, F2, F3) chromatiques est déterminée lors du procédé, localisations qui se trouvent dans un système de coordonnées correspondant sur une courbe (K1) de variation chromatique prédéfinie. La courbe de variation chromatique peut être le tracé de Planck, par exemple, ou une ligne droite. Les localisations (F1, F2, F3) chromatiques sont choisies de telle sorte que les couleurs correspondantes respectives présentent un écart (d) chromatique qui est perçu au moins subjectivement à chaque fois de même importance. La possibilité de réglage de la lampe en fonction d'une impression lumineuse souhaitée donnée est ainsi facilitée.
EP07723821.0A 2006-04-07 2007-03-30 Commande de la temperature de couleur et de la localisation chromatique d'une lampe Not-in-force EP2005799B1 (fr)

Applications Claiming Priority (3)

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DE102006016513 2006-04-07
DE102006055615A DE102006055615A1 (de) 2006-04-07 2006-11-24 Farbtemperatur- und Farbortsteuerung für eine Leuchte
PCT/EP2007/002879 WO2007115706A1 (fr) 2006-04-07 2007-03-30 Commande de la température de couleur et de la localisation chromatique D'une lampe

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EP2005799A1 true EP2005799A1 (fr) 2008-12-24
EP2005799B1 EP2005799B1 (fr) 2014-07-23

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US (1) US8058816B2 (fr)
EP (1) EP2005799B1 (fr)
CN (1) CN101422080B (fr)
DE (1) DE102006055615A1 (fr)
WO (1) WO2007115706A1 (fr)

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EP2005799B1 (fr) 2014-07-23
CN101422080B (zh) 2013-05-08
US20090174332A1 (en) 2009-07-09
WO2007115706A1 (fr) 2007-10-18
US8058816B2 (en) 2011-11-15
CN101422080A (zh) 2009-04-29
DE102006055615A1 (de) 2007-10-11

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