EP2520136A1 - Verfahren zum betreiben einer halbleiterleuchtvorrichtung und farbregelvorrichtung zum durchführen des verfahrens - Google Patents
Verfahren zum betreiben einer halbleiterleuchtvorrichtung und farbregelvorrichtung zum durchführen des verfahrensInfo
- Publication number
- EP2520136A1 EP2520136A1 EP11725907A EP11725907A EP2520136A1 EP 2520136 A1 EP2520136 A1 EP 2520136A1 EP 11725907 A EP11725907 A EP 11725907A EP 11725907 A EP11725907 A EP 11725907A EP 2520136 A1 EP2520136 A1 EP 2520136A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- color
- temperature
- switching
- reaching
- rules
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000004065 semiconductor Substances 0.000 title claims abstract description 36
- 239000003086 colorant Substances 0.000 claims abstract description 24
- 230000002596 correlated effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241001516739 Platonia insignis Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H05B45/28—Controlling the colour of the light using temperature feedback
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Definitions
- the invention relates to a method for operating a HalbiertieuchtVorraum, wherein the light emitting device Ha ' ibieiterlichtánn having at least two different colors and wherein zürn setting a color location of the semiconductor light device, a holiness of the semiconductor light sources by means of a rule or an -Algorithmus' is set.
- the invention also relates to a color control device for. Perform the procedure.
- a color temperature can be a measure of a color impression of a light source.
- the Desirb may be particularly defined as the temperature of a black body, a Planc 'kschen radiator which belongs to a particular color of light that Strahiungsttle. Specifically, it may be the temperature reading that is most similar at the same brightness and under specified observation conditions to the color to be described (CCT, correlated color temperature, similar color temperature) in a chromaticity diagram (eg, a CIE 1931 Diagram) belongs to each color temperature of a light source a white point of this kind of illumination.
- CCT correlated color temperature, similar color temperature
- the spectral distribution of the light from spotlights with the same color temperature can be very different (so-called “eternally light sources”) - light from dark light sources can have a continuous spectrum or be limited to a few narrow spectral bands.
- a color rendering index gives the quality of color reproduction when illuminated with a light source on.
- the ink color may be defined as the spectral composition of light emitted by a light source. Visible light causes a color appeal.
- the light color can be either discrete single colors a respective bes immten wavelength, a mixture of several Because lengths or "We1.1endorfn Kunststoffe, or from a continuous mixture of light alier Because lengths of a particular spectral wave of ha zen.
- light can be a continuous spectrum having, when, as the sunlight or the light of an incandescent lamp Its spectrum then follows the laws of the Planckian (black) emitter, the lightness of which can then be determined by the wavelength of the maximum of the continuous spectrum and a corresponding dyeing temperature, measured in Kelvin, equal to the temperature
- Planckian (black) emitter the lightness of which can then be determined by the wavelength of the maximum of the continuous spectrum and a corresponding dyeing temperature, measured in Kelvin, equal to the temperature
- the light color already starts immediately above absolute zero with the heat radiation in the far infrared: the higher the temperature, the shorter the wavelengths are emitted and the "bluer" becomes the maximum
- the sum color (color of the mixed light) must be regulated by the relative intensity of the light sources.
- the sum color of two light sources lies on the connecting straight line of the two color loci of the light sources in the CIE color diagram. This differentiates bichrome systems from structures with three or more different (primary) light colors, in which the sum color location of the mixed light can be chosen more freely. but also more difficult to stabilize.
- Fig. 1 shows a section of the CIE Farbdiagrarom, with several connecting lines VI, V2, V3 for two LEDs or groups of LEDs with different colors (mixed dichroic Bichromes).
- the two (groups of) LEDs change their color location in different operating states (eg depending on a temperature, a control and their age).
- the connecting lines VI, V2, V3 shown change in different operating states and differ hi r by the temperature T1, T2 or T3 of the (otherwise identical) LEDs.
- the change of the color locus (eg with changing temperature T) thus takes place not only in the direction of the connecting straight lines VI, V2, V3.
- a constant surrealist rbort is therefore practically unavailable.
- the sum fa bort is thus always dependent on an operating state of the two LEDs or groups of LEDs and is on the currently existing or current connecting lines VI, V2, V3 between the two current LED Fa rbcrten. If the LED sanctities are changed ⁇ eg by a different LED current or a pulse width nraodulation) or also during the warm-up nose, the LED operating state and thus the connection lines Vi, V2, V3 of the LED color locations also change. Thus, another touch control (eg, to reach a color location on the current line) results in a new connection line that may no longer contain the original destination color location.
- the Planckian curve P is shown in dashed lines.
- the LEDS can be set to different targets for the color, in particular adjusted.
- the color locus can be regulated, for example, so that it lies on the Planckian curve ("Planck rule")
- Planck rule A possible rule or a possible Regelalgori thmus for the Sumfarbfarbort may thus include that depending on the LED temperature T a Brightness ratio of the differently colored LEDs or LED groups is set so that the Suramenfarbort Fl, F2, F3 on the Planckian curve or close to it. 2 shows the set color loci F1, F2, F3 on the associated connecting straight lines VI, V2, V3 for the temperatures T1, T2, T3.
- a color locus Fl, F2, F3 near the Planckian curve comes closest to natural light from thermal light sources, each color locus El, F2, F3 on the Planckian curve corresponds to a blackbody temperature. cur.
- the color locus F1, F2, F3 thus set migrates very widely over different LED operating conditions (here the temperature T), so that, disadvantageously, a clear color change is visible.
- the color loci Fl, F2, F3 can be set to lie on a Judd line J (ie, for a constant color aperture) ("Judd "), as shown in Fig.3.
- the sanctity ratio can thus be set so that the sum color location Fl, F2, F3 lies on the judd straight line with a constant correlated color temperature (CCT).
- CCT constant correlated color temperature
- the color loci Fl, F2, F3 are set to travel along the major semiaxis of a MacAdam ellipse, as shown in Fig. ("MacAdani Rule").
- a MacAdam ellipse that circumference in a chromaticity diagram, in particular CIExy diagram, may be referred to as a reference hue in which reference colors are perceived as equidistant.
- the brightness ratio can thus be set so that the sum color location Fl, F2, F3 lies on a, in particular large semiaxis, of a MacAdam ellipse.
- the correlated color temperature (CCT) changes slightly, the distance to the Planckian curve changes greatly.
- VI, V2, V3 are generally examples of a continu ous group of connecting lines that are formed by the independent operating states of the individual LEDs.
- Fl, F2, F3 are examples of a continuous set of color dots.
- the setting of the Farbort-s or Summenfarborts can be carried out, for example, at least one characteristic curve or a Hachschlagetabeiie from which for ne ne known temperature T of the LED (s) the electrical currents and / or the Tastes of the LEDs can be determined, which for a Setting the desired color location at the temperature T needed.
- a light sensor may be present, by means of which the current color location of the mixed light can be measured, wherein the measured color location can be used as an actual value for a regulation to a nominal value of the color location. It is also possible to use brightness sensors for the individual LEDs and to calculate the sum color location
- the object is achieved by a method for operating a Halbleite luminescent device, wherein the semiconductor light-emitting device semiconductor sources having at least two different colors and wherein at least one sanctity of the Ha1hleite .1 ichtque11en mitteis a rule is set to set a color location of the semiconductor light device.
- the Rule ⁇ also as a rule Characteristic or may be termed an algorithm
- the rule can be stored, for example, as a characteristic (s) or table.
- the rule may have been determined empirically, for example.
- the brightness of the semiconductor light beams is further adjusted by means of at least two rules, switching between two of the rules upon reaching or exceeding at least one predetermined switching point. It can therefore be switched dynamically between several rules or control characteristics. For different operating status ranges, an optimized rule or an optimized control behavior can be achieved in each case. It also results in the advantage that a setting of the color locus can be made more variable and so an improved Nut erwahrnenmung is possible.
- the switching point can be switched with reaching or exceeding at least one predetermined ümschait Vietnameses.
- the switching point may be a point of a range of values of one or more parameters characterizing an operating point.
- the switching point can basically be reached or exceeded from smaller values to larger values of the fourth range ('from below'), as well as from larger values to small values of the value range ⁇ 'from above'). It can also be switched between the rules with reaching or exceeding a switching point of several possible Umschlt Vietnameseen. In this case, a hysteresis can be used to avoid sudden changes, as described in more detail below.
- the semiconductor light-emitting device has light sources with exactly two different colors (bichrome semiconductor light-emitting device). Since the setting of the color locus is mainly about adjusting a ratio of the heals of the two colors, it may suffice that a brightness of only one of the semiconductor light sources (a color) is performed to set a color location of the semiconductor light source a Heiltechnikseinsteliung the semiconductor light sources only one of the two colors is met.
- the semiconductor illumination device has light sources with more than two different colors.
- the color location in the then at least three-dimensional Farbraura can also be adjusted by the method described, for example, applied multiple or multi-stage.
- light sources with three different colors can first be moved to their desired, common sum location by means of the method and, following this, the sum color location and the third color can be set to the final color location by the method. This can be done analogously for four or more colors.
- the method is applied directly to two colors, but can be applied in a linked or interlaced manner for more colors. The procedure can be carried out iteratively.
- the rules are selected from a group which includes: a) A setting of the color locus of the halftake source to a position on a judd line.
- the illumination device can be operated at a constant, correlated color temperature.
- the lighting device can be operated with the same color impressions.
- the ümschait Vietnamese with a temperature at least one of the halftone light sources correlates or corresponds to such a temperature.
- the operating temperature of the Halbleiteriic tario correlates or corresponds to such a temperature.
- a temperature-dependent color drift of the semiconductor light source (s) can be compensated more effectively.
- a distinction can be made between a rule for a warm-up phase of the lighting device and a rule for a thermally stabilized operating phase, which allows a particularly flexible and viewer-friendly color location control.
- the control point may in particular correspond to an operating temperature which represents a lower limit of a nominal operating temperature. This allows, in a particularly simple manner different rules for the Aufhemph se and the thermally stabilized phase of operation can be applied.
- the nominal operating temperature may range, for example, from 80 ° C to 90 ° C.
- a preferred Umschait Vietnamese then corresponds to an operating temperature of about 80 ° C. It may therefore be an advantageous embodiment that when the Kaibleiterlichtqaelie over a certain operating temperature (eg in a range of below 40 ° C to .90 rl C) is switched from a first control behavior to a second control behavior (preferably with reaching the nominal Operating temperature ⁇ , and the second control behavior is then maintained for the activated lighting device for all temperature ranges.
- the color location may be, for example, by means of a set up. Be sensed light sensor.
- the switching is performed only when reaching from one or exceeding in one direction. As a result, frequent switching between two rules can be avoided, since the light-emitting device after the. Reaching or exceeding the switching point can be operated with the same rule, and zwa also when the Umschalt Vietnamese is reached or exceeded from the other direction.
- the switching between two rules is performed once for a duty cycle of the lighting device.
- an application of only one rule for the thermally stabilized loading phase after a previous warm-up phase or other initial phase can be ensured. After switching off the lighting device can be switched again between the two rules.
- the switching is carried out when reaching from both or exceeding in both directions ⁇ ie ' when reaching or exceeding the Ums.chalthuis from below as well as above).
- the setting of the color location can be adapted particularly well to changes in at least one operating state.
- the two Umschaitpunk- te form a hysteresis of about 5 ° C to 10 ° C.
- the color locus is first set to a position on the Planckian curve day and is switched to a position on a Judd straight with a reaching or exceeding a predetermined color temperature and / or the temperature at least one of the semiconductor light sources.
- This switching can provide the advantage that, during a warm-up phase of the wet device, it displays a paint-like color behavior and only after reaching a predetermined operating temperature, in particular shortly before or reaching a nominal operating temperature (which, for example, is between 80 ° C and 90 ° C) maintains a constant color temperature.
- a nominal operating temperature which, for example, is between 80 ° C and 90 ° C
- the color locus is first set to a position on a semi-axis of a MacAdam Eliipse and with reaching or exceeding an intersection point with the Planckian curve switched to a position on a judd straight line.
- a color location of the lighting device can advantageously be set by means of different control for a thermally steady operating phase and another operating phase, in particular a warm-up phase f .
- the color locus is first set to a position on a semi-axis of an acAdam Eliipse and is switched to a (namely the currently possible) position on the Pianck curve with reaching or exceeding an intersection point with the Pianck curve.
- the loading device can be set or adjusted, for example, at low LED operating temperatures, so that the color deviations of the current (sum) color location are minimal.
- the Pianck curve is adjusted.
- at higher temperatures for example, more yellow and / or green LEDs are used, which show a lower light-current reduction than orange and / or red LEDs.
- a higher luminous flux can be achieved even at elevated temperatures (eg at an LED Se riebstemperatur of 100 Ü C) than in a control, for example, only on the J ' udd straight.
- the object is also achieved by a color control device, wherein the color control device is designed for carrying out the method according to one of the preceding claims.
- the color control device may e.g. be a functional part of a driver for the semiconductor light sources,
- the color rule may be e.g. be coupled to a temperature sensor for sensing an operating temperature of at least one of the semiconductor light sources or having such a senor.
- the color rule may be e.g. a memory for storing a Regelaigorithmus' include.
- FIG. 5 shows a section of a CXE diagram for a method according to a first embodiment
- FIG. 5 shows a section of a. CIE diagram for a method according to a first embodiment. This method supports a naturally appearing upset of a lighting device with light-emitting diodes or groups thereof with two different colors.
- a Farborb For cold light-emitting diodes having an initial operating temperature T1 of less than 40 ° C. (eg room temperature), for example in an initial phase or warm-up phase after a no Switching on the lighting device, a Farborb is first set on Planck's curve eye P (Planck's rule) and thus a light color is generated with increasing operating temperature as with thermal radiators ⁇ eg incandescent lamps). This is shown here by way of example for the color locus F1 associated with the operating temperature Ii on the connecting straight line VI.
- T1 initial operating temperature
- P Planck's rule
- a location on a judd line J is then obtained (for eg 3000 K) ⁇ Judd rule.).
- the switching point here corresponds to the color locus F2 at the minimum operating temperature of T2 - 80 ° C.
- the warmed up lights then maintain a constant dyeing temperature and blend harmoniously into an ensemble with other sources.
- this method procedure comprises, in the warm-up phase of here, for example, an LED operating temperature between less than 4 ° C. and 80 ° C., the luminous device shows a glow-lamp-like color behavior, starting from the change point shortly before or reaching the minimum nominal operating temperature of, for example 80 ° C, the luminous device emits a constant temperature, if the operating temperature is too high (eg more than 90 ° C, which corresponds to exceeding the maximum nominal operating temperature) or if the operating temperature is too low (eg from eniger a1s 80 , J C, which corresponds to a lower than the minimum nominal operating temperature), the color temperature nevertheless remains constant.
- the Planck rule switches to the Judd rule, but not vice versa, which means switching between the two rules.
- FIG. 6 shows the section from the CIE diagram for a method according to a second embodiment. This method promotes a minimally perceptible warm-up behavior of a light emitting device mt LEDs or groups thereof with two different colors.
- a color locus is now first set to: a MacAdam-HaIbachse (which corresponds to an acAoam rule), which is illustrated here by way of example by the color locus F1.
- the MacAdam-HaIbachse cuts the Planckian curve?, Whereby the intersection (which corresponds to the color locus F2) corresponds to a desired target color temperature.
- the Planckian curve P at the color locus F2 is switched to a setting of (teraperatur- dependent) Fa bor s on the target color temperature associated Judd line J.
- FIG. 7 shows the detail from the CIE diagram for a method according to a third embodiment. This method supports a minimal loss of light power in an initial warm-up phase of a light emitting device with light emitting diodes or groups thereof with two different colors.
- a color locus eg Fl
- a color locus F2 is set on the MacAdam half-axis ⁇ MacAdam Rule).
- the at least one LED of a first color (for example yellow, green or yellow-green LEDs), which supplies or delivers a comparatively high leakage current, can be switched on or amplified in comparison with at least one LED of a second color ⁇ e.g. orange, red or orange-red LEDs).
- a second color e.g. orange, red or orange-red LEDs.
- the LEDs of the first color are increasingly used at higher temperatures, which show a lower luminous flux decrease than the LEDs of the second color.
- a higher light flux can be achieved even at elevated temperatures (for example an LED operating temperature of 100 ° C.) than when a judging egei is used.
- the method is also applicable to more than two colors or Halbierterleucht devices with more than two colors, for example, so that set for a color location, for example, in a three-dimensional color location only the desired Sum enfarbort in a two-dimensional color space (for two colors) and then in another two-dimensional color space, with the axes now representing the third color on the one hand and the previously set sum color on the other hand.
- the two two-dimensional color spaces can in total form or span the three-dimensional color space of the three original colors.
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010030061A DE102010030061A1 (de) | 2010-06-15 | 2010-06-15 | Verfahren zum Betreiben einer Halbleiterleuchtvorrichtung und Farbregelvorrichtung zum Durchführen des Verfahrens |
| PCT/EP2011/059476 WO2011157604A1 (de) | 2010-06-15 | 2011-06-08 | Verfahren zum betreiben einer halbleiterleuchtvorrichtung und farbregelvorrichtung zum durchführen des verfahrens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2520136A1 true EP2520136A1 (de) | 2012-11-07 |
Family
ID=44453821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11725907A Withdrawn EP2520136A1 (de) | 2010-06-15 | 2011-06-08 | Verfahren zum betreiben einer halbleiterleuchtvorrichtung und farbregelvorrichtung zum durchführen des verfahrens |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130093361A1 (de) |
| EP (1) | EP2520136A1 (de) |
| CN (1) | CN102986296A (de) |
| DE (1) | DE102010030061A1 (de) |
| WO (1) | WO2011157604A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9271362B2 (en) | 2012-05-04 | 2016-02-23 | Osram Sylvania Inc. | Planckian and non-planckian dimming of solid state light sources |
| DE102013221723A1 (de) * | 2013-10-25 | 2015-04-30 | Zumtobel Lighting Gmbh | Melanopische Leuchte |
| EP2955711B1 (de) * | 2014-05-09 | 2018-11-21 | Ams Ag | Verfahren zur Kalibrierung einer Farbraumtransformation, Verfahren zur Farbraumtransformation und Farbkontrollsystem |
| JP6470927B2 (ja) * | 2014-09-03 | 2019-02-13 | 株式会社キルトプランニングオフィス | 照明装置 |
| EP3032918B1 (de) * | 2014-12-11 | 2022-04-20 | Lumitech Patentverwertung GmbH | Verfahren zum Betreiben einer zum Emittieren von in seiner Helligkeit und/oder seinem Farbort einstellbarem Licht eingerichteten Anordnung |
| CN107454718B (zh) * | 2017-08-31 | 2023-11-28 | 广州光联电子科技有限公司 | 一种具有修正色温功能的led灯光源及光学系统 |
| NL2019903B1 (en) | 2017-11-14 | 2019-05-20 | Eldolab Holding Bv | Method of controlling an LED source and an LED based light source. |
| CN110675797B (zh) * | 2019-09-25 | 2023-10-13 | 深圳Tcl数字技术有限公司 | 一种色域映射方法、组件、显示装置及存储介质 |
| CN113238598B (zh) * | 2021-04-30 | 2022-05-06 | 深圳市爱图仕影像器材有限公司 | 照明装置配色方法、装置及存储介质 |
| CN113238599B (zh) * | 2021-04-30 | 2022-05-17 | 深圳市爱图仕影像器材有限公司 | 照明装置配色方法、装置及存储介质 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5803579A (en) * | 1996-06-13 | 1998-09-08 | Gentex Corporation | Illuminator assembly incorporating light emitting diodes |
| US6414426B1 (en) * | 1997-02-13 | 2002-07-02 | Matsushita Electric Industrial Co., Ltd. | High-efficiency light source |
| CN1165183C (zh) * | 2000-05-15 | 2004-09-01 | 北京北达华彩科技有限公司 | 自适应色度补偿法及其补偿装置 |
| US7656371B2 (en) * | 2003-07-28 | 2010-02-02 | Nichia Corporation | Light emitting apparatus, LED lighting, LED light emitting apparatus, and control method of light emitting apparatus |
| JPWO2006077740A1 (ja) * | 2004-12-28 | 2008-06-19 | 日亜化学工業株式会社 | 発光装置及びその製造方法 |
| DE102005022832A1 (de) * | 2005-05-11 | 2006-11-16 | Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg | Scheinwerfer für Film- und Videoaufnahmen |
| DE102005049579A1 (de) * | 2005-10-17 | 2007-04-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lichtquelle, die mischfarbiges Licht aussendet, und Verfahren zur Steuerung des Farbortes einer solchen Lichtquelle |
| EP2372223A3 (de) * | 2005-12-21 | 2012-08-01 | Cree, Inc. | Beleuchtungsvorrichtung und Beleuchtungsverfahren |
| DE102006055615A1 (de) * | 2006-04-07 | 2007-10-11 | Ledon Lighting Gmbh | Farbtemperatur- und Farbortsteuerung für eine Leuchte |
| WO2007121486A2 (en) * | 2006-04-18 | 2007-10-25 | Lamina Lighting, Inc. | Optical devices for controlled color mixing |
| US20080043464A1 (en) * | 2006-08-17 | 2008-02-21 | Ian Ashdown | Bi-Chromatic Illumination Apparatus |
| DE102007044556A1 (de) * | 2007-09-07 | 2009-03-12 | Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg | Verfahren und Vorrichtung zur Einstellung der farb- oder fotometrischen Eigenschaften einer LED-Beleuchtungseinrichtung |
| PL3051586T3 (pl) * | 2007-10-09 | 2018-08-31 | Philips Lighting North America Corporation | Zintegrowana oprawa oświetleniowa do oświetlenia ogólnego oparta na diodach led |
| US8339029B2 (en) * | 2009-02-19 | 2012-12-25 | Cree, Inc. | Light emitting devices and systems having tunable chromaticity |
| DE102009018233A1 (de) * | 2009-04-21 | 2010-10-28 | Ledon Lighting Jennersdorf Gmbh | Verfahren und Beleuchtungssystem zum Betrieb eines Mehrkanal-LED-Moduls |
| DE102009048871A1 (de) * | 2009-05-19 | 2010-11-25 | Osram Gesellschaft mit beschränkter Haftung | Verfahren und Vorrichtung zur Einstellung eines Farborts |
| US8508127B2 (en) * | 2010-03-09 | 2013-08-13 | Cree, Inc. | High CRI lighting device with added long-wavelength blue color |
-
2010
- 2010-06-15 DE DE102010030061A patent/DE102010030061A1/de not_active Ceased
-
2011
- 2011-06-08 CN CN2011800291800A patent/CN102986296A/zh active Pending
- 2011-06-08 EP EP11725907A patent/EP2520136A1/de not_active Withdrawn
- 2011-06-08 US US13/704,950 patent/US20130093361A1/en not_active Abandoned
- 2011-06-08 WO PCT/EP2011/059476 patent/WO2011157604A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011157604A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011157604A1 (de) | 2011-12-22 |
| US20130093361A1 (en) | 2013-04-18 |
| DE102010030061A1 (de) | 2011-12-15 |
| CN102986296A (zh) | 2013-03-20 |
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