CN101167408A - Improved lighting system - Google Patents
Improved lighting system Download PDFInfo
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- CN101167408A CN101167408A CN200680014386.5A CN200680014386A CN101167408A CN 101167408 A CN101167408 A CN 101167408A CN 200680014386 A CN200680014386 A CN 200680014386A CN 101167408 A CN101167408 A CN 101167408A
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Abstract
A lighting arrangement (100) provides light (117) of a desired color. The arrangement comprises a plurality of light sources (101, 102, 103) that each emit light of a respective color that, when mixed, is perceivable as the desired color. A light detector (197) is configured to receive light (116) reflected by a color reference surface (109) having a specific reference color. The detector also provides a s (105) analyzes the signal from the light detector and recognizes the color of the received light as the color of the reference surface. The controller controls the light sources such that the desired color corresponds to the color of the color reference surface.
Description
Technical field
The present invention relates to a kind of light-emitting device, a kind of luminescent system that is configured to provide the light of required color, a kind of method of the light that required color is provided and the device that is used to control light-emitting device.
Background technology
Individual household and commercial entity for example retail shop more and more need to produce the light source of very most of spectrum of colourama.From the angle of individual household, desired is can produce any basically color or atmosphere in living room, bedroom etc.From the viewpoint of commercial enterprise, what need is to select for product provides attracting colored the demonstration.
Yet what lack in the technical field of luminescent system at present is convenience and the method for controlling light source colour intuitively.Easy to use is very important, because it is still fresh concerning people to change the color of light, is to open or close because in most of the cases select up to now.
Existing luminescent system comprises Long-distance Control, its have be used to control the color of being launched add/subtract redness, green and blue buttons.Yet if the user was not subjected to the theoretical training of blend color, this is the mode of very clumsy control color normally.Existing more complicated Long-distance Control comprises the control button that is used for tone, saturated, brightness etc., and all these use all is the hardship that stands complexity.
An example of the system in field of the present invention is that publication number is the international patent application that WO01/99474 announces, discloses a kind of light emitting control device.This device comprises can be at the transducer of indoor measurement visible light, for example measures the color of the sunlight in the irradiation inlet chamber, and according to indoor luminous of the photocontrol of measuring.Two-dimensional image in the luminescent system analysis room of WO01/99474 consider to move, shade and other characteristics, so that make it possible to the luminous environment in the accurate control room.Yet can not to control the color of the light of being launched be any color of wanting in disclosed system in WO01/99474.
Summary of the invention
The objective of the invention is to overcome this problem, a kind of light-operated method of making any needed color with luminescent system is provided.
This purpose is embodied as light-emitting device, the luminescent system according to claims, the method that light is provided and control device at different aspect.
Therefore, in first aspect, the invention provides a kind of light-emitting device, it is configured to provide the light of required color.This device comprises a plurality of light sources, and each is configured to launch the light of color separately these a plurality of light sources, when these light mix, can be perceived as the light of required color.This light-emitting device also comprises photodetector, and this photodetector is configured to receive the light that color reference surface reflected by having the special datum color.This detector also is configured to provide the signal of the described light that receives of expression.The controller that comprises in the light-emitting device is configured to analyze the signal from photodetector, and the color of thus can recognition received light is the color of reference surface.This controller also is configured to control light source, makes needed color corresponding with the color of color reference surface.
In a preferred embodiment, light-emitting device also comprises white light source, this white light source is configured to the illumination colors reference surface, and photodetector comprises color sensor, for example with the form of photodiode with different chromatic filters or CCD device, it is configured to detect the white light after the color reference surface reflection.
In another embodiment, the photodetector in light-emitting device comprises an independent photoelectric detector, and controller is configured to the sequential control light source to launch the light of corresponding duration.That is, carry out color sequences scanning.For example, during three light source sequential scannings using known RGB system, the control light source is at first only launched the light of first color, only launches the light of second color then, only launches the light of the 3rd color at last.Replacedly, the control light source is to launch the light of other colors.Therefore use an independent photoelectric detector to determine the color of color reference surface, this be aspect simple and low-cost be favourable be not least important.
Photodetector can also be configured to also detect the direct light from light source, and controller is configured to also control light source according to detected direct light.That is, feedback characteristics advantageously provides a kind of method of proofreading and correct the aberration that causes because of the variations in temperature of for example light source.
In any one of these embodiment, controller can be configured to analyze continuously the light that is detected and control light source continuously.Replacedly, controller can be configured to as the response to triggering signal, analyzes detected light and control light source.
In addition, light-emitting device can also comprise storage device, and it is selectable that this storage device is used to store the color that the information about the control of light source makes a plurality of required colors be stored and wherein be stored.
In one embodiment, light-emitting device comprises that also diffuser is with will be from the light diffusion of light source.Interchangeable, when light-emitting device is used for projecting by light when providing direct light on the surface (for example ceiling or wall), then do not need diffuser.In such an embodiment, different colours mixes and does not need diffuser on the surface of wall or ceiling.In addition, light source can meet the RGB system and be preferably light-emitting diode (LED) form, but also can be colored fluorescent lamp (CFL) form.
In second aspect, the invention provides a kind of luminescent system, this luminescent system is configured to provide the light of required color.This system comprises a plurality of aforesaid light-emitting devices, and each light-emitting device also comprises the communicator that is used to transmit signal, this signal makes the controller in each device can control light source, thereby makes that the light of required color is corresponding with the color of color reference surface.
In the third aspect, the invention provides a kind of method that is used to provide required color light.This method comprises a plurality of light emitted of the control light of color separately, can be perceived as the light of required color when these light mix.Be received by the light that color reference surface reflected with special datum color, and the signal of the light that provides expression thus and received.Analyze this signal, thus the color of the light that received is identified as the color of reference surface.At last, the control light source makes that the light of required color is corresponding with the color of color reference surface.
In fourth aspect, the invention provides a kind of color controller spare, it is used to control the light that light-emitting device provides required color.Light-emitting device preferably includes a plurality of light sources, and each light source is configured to send out the light of respective color, can be perceived as the light of required color when these light mix.That is, light-emitting device and device discussed above are similar.Color controller spare is characterised in that photodetector is configured to receive the light that color reference surface reflected by having the special datum color, and is configured to provide the signal of the described received light of expression.In addition, control device comprises controller, this controller is configured to the signal from photodetector is analyzed, and the color that can discern the light that is received thus is the color of reference surface, and is configured to control the light source in the light-emitting device so that needed color is corresponding with the color of color reference surface.
The invention has the advantages that it provides a kind of simple and easy and control the method for light-emitting device intuitively, so that the light of any required color to be provided.This can be by analysis realizes in the simplest mode from the light of the color reference surface reflection with required color and the colourama of controlling each light emitted respective strengths, when these colouramas of being launched pass through for example diffuser mixing, provide the light of required color.Color reference surface can be the surface on any suitable entity, comprises the simple entity such as a ticker tape.
Use angle of the present invention from the individual home environment, these advantages can be felt, and wherein the present invention has increased the comfortable experience of user.
From the angle of commercial enterprise, special concern of the present invention, appropriate luminously be provided for that exhibiting product is a very important problem in the shop because select.For example, user of the present invention need not replace must whitewashing at the show surroundings that is used for product the coating of different colours, can use the present invention to realize changing the color setting of show surroundings.
Description of drawings
With reference to the accompanying drawing that currently preferred embodiment of the present invention is shown, of the present invention this is described in further detail with other aspects.
Fig. 1 schematically shows the viewgraph of cross-section according to first embodiment of device of the present invention.
Fig. 2 schematically shows the viewgraph of cross-section according to second embodiment of device of the present invention.
Fig. 3 schematically shows according to system of the present invention.
Fig. 4 a and 4b schematically show the embodiments of the invention that relate to color feedback system.
Embodiment
The LED-based light-emitting device 100 that is combined with color sequences scanning with reference to 1 couple in figure describes.Scan function is used to scan the color reference surface of look " card " form, the required color setting of this look " card " expression light-emitting device 100.
Light-emitting device 100 comprises three led light sources, and it meets the RGB color system, promptly red (R) LED 101, green (G) LED 102 and blue (L) LED 103.Though use the three LED structure meet the RGB system here, it is possible being to use the LED that comprises other quantity and other structures of other color systems.
The light emission of LED 101-103 is by controlling with the controller 105 that LED is connected with power supply (not shown in order to simplify).The photodetector 107 of single photodiode form also is connected with controller 105.Except opening 106, diffuser 111 ambient light source 101-103, controller 105 and photodetector 107, the light that is reflected 115 from light source 101-103 is fallen on the color reference surface of " colour atla " 109 forms by this opening 106, should " colour atla " simple form be a ticker tape.Though Fig. 1 shows the light of getting to indirectly on the card 109, can also be that light is directly got to other structures on the card 109.
Do not describe circuit, LED101-103 or photodetector 107 in the controller 105 herein in detail, this may not necessarily make explanation of the present invention unclear, because those skilled in the art have known characteristic.Yet controller 105 preferably includes programmable device with storage device and any necessary interface connecting circuit that is used to be connected LED101-103 and photodetector 107.
Carry out the scanning of colour atla 109, because detector 107 receives by the light 116 of colour atla 109 reflections and the signal of controller 105 analyzing and testing devices 107 generations, the light that this signal indication received.That is, the light 115 from LED101-103 scatters on the photodetector 107 through the hole 106 that colour atla 109 passes diffuser 111.Preferably, there is not light directly to arrive photodetector 107 from LED101-103.By carrying out color sequences scanning, control at first only red-emitting of LED101-103 at controller 105, green glow only taking place then, only launch on the meaning of blue light at last, uses single photodiode can determine the color of colour atla 109 as photodetector 107.Close all LED and can realize the further accuracy that color is determined by scanning.This can proofread and correct for the luminous of any surrounding environment from the other light sources (not shown).
In this application, can utilize LED101-103 have the very little response time (＜＜1ms) this fact because color sequences scanning can be carried out to such an extent that make the beholder can not notice any flicker of different LED color very soon.
The scanning of colour atla 109 can or continuous (for example with the frequency about 1Hz) or only when the user when for example pushing the switching device 118 that is connected with controller 105 (for example button or touch quick pad etc.) driver sweep.
The intensity setting of LED101-103 can be any one in several options in the scanning imaging system process.Yet preferably, scanning intensity is corresponding with the intensity of the light that has been provided with (being the light 117 that the beholder perceives), makes that mean intensity does not change in scanning process.
Preferably, the bulk strength along with the color of time is constant.Because the scan period of a color other colors have this fact of zero intensity, scan period the intensity of this color can be higher so that along with the mean intensity of time is constant.For example, suppose that red LED 101 equals certain luminance C before scanning.Each color of scanning during time T.In the scan period of G LED102 and BLED103, the intensity of red LED is zero.Therefore, in the scan period of red LED 101, red intensity can be 3C, so that along with the mean value of time is constant intensity C once more.Other selections for example are high or minimum LED light intensity levels.
Always do not needing to have or how and less in the application attached to the color chart on the light-emitting device 100 109, controller 105 can be stored in colouring information in the storage device (not shown), when light-emitting device 100 was activated, " demonstration " that color was up to detecting the card with different colours continuously.For example, controller 105 can be stored the first five scanned color and presets as the user.When the user provides triggering signal by for example touching quick control switch (touch sensitive controlswitch) or simple button switch, light-emitting device 100 can circulate in these colors, and when showing required color, the user can select the color that presets of a certain storage by release-push.
Use a kind of possibility of LED to be to use other forms of light source.When using LED, can scan not too significantly.Yet, the principle of color sequences scanning colour atla also can be used together with " slower " light-emitting device (as colored fluorescent lamp (CFL)), but sequential color stroboscopic (color flashing) can be observed in this case, because compare with the response time of LED, the response time of CFL is longer.
Turn to Fig. 2 now, will second embodiment of light-emitting device be discussed.Similar with the said apparatus 100 about Fig. 1, light-emitting device 200 comprises three led light sources 201,202 and 203.It should be noted that and do not carry out color sequences scanning in this embodiment, so the response time of light source is not too important.Therefore, can utilize other types light source except LED in this embodiment.
The emission of the light 213 of LED201-203 is by controlling with the controller 205 that LED is connected with power supply (not shown in order to simplify).The photodetector 207 of color sensor form also is connected with controller 205.Diffuser 211 ambient light source 201-203 and controller 105.
Contrast with the embodiment of Fig. 1, the white light 221 that sends from white light source 219 drops on the color reference surface 209 of " colour atla " form, and the simple form of being somebody's turn to do " colour atla " is a ticker tape.White light source 219 is preferred by any white light source realization, comprises White LED well known in the prior art.
Do not describe circuit, LED201-203 or photodetector 207 in the controller 205 herein in detail, because those skilled in the art have known characteristic, this may not necessarily make explanation of the present invention unclear.But, typically use color sensor, its simplest form can be three photodiodes arranging together with different chromatic filters (for example RGB (not shown)).Yet, also can use the CCD chip, for example typically be combined in digital camera, web camera and the image sensor that nowadays also in mobile phone, uses in the CCD chip.
The light 222 that detector 207 receives by colour atla 209 reflections from white light source 219.Controller 205 is analyzed the signal of the color of the light that expression received 222 that is produced by detector 207 then, and control LED201-203 emission light 213, and this light 213 is perceived as needed light 215 after diffuser 211 diffusions.
Detector 207 and white light source 219 preferably are assembled in the capsule 223 with slit 225 together, when the user wants to change the color of light-emitting device 200, colour atla 209 are inserted in this slit 225.Box 223 can also be arranged such that slit 225 is " eyes " form, so that make that this surface is as described above by color scanning when it is placed on the top of colored surface.The variation of this " color control box " 223 can be combined into form of a stroke or a combination of strokes device to be pointed to the colored surface with required color by the user as fixed point (pointing) device with white light source 219 and color sensor 207." color control box " 223 preferably includes controller 224, and " color control box " 223 is connected with controller 205 and is communicated with controller 205 by wired (as shown in Figure 2) or wireless connections.Controller 224 can selectively integrate with controller 205.
Before the system in describing Fig. 3, now attentiveness is turned to Fig. 4 a and 4b.Fig. 4 a and 4b illustrate the embodiment of the light-emitting device that combines reponse system.Similar with the said apparatus 100,200 about Fig. 1 and 2, light-emitting device 400 comprises light source 401, and light source 401 preferably includes as three LED among the embodiment in front.It should be noted that and do not carry out color sequences scanning in this embodiment.
The emission of the light 413 of light source 401 is by controlling with light source 401 controller that (for easy to be not shown) is connected with power supply 405.The photodetector 407 of color sensor form also is connected with controller 405 and is configured to directly receive the light 416 that is reflected by color reference surface 409 by the hole in the diffuser 411 406 from the light 413 and the reception of light source 401, and this is similar to the embodiment among Fig. 1.Controller is configured to receive the outside control signal that produces from external system 451.Sort signal can meet any relevant standard as the skilled person will recognize, for example DALI, DMX, RF etc., and can relate to the setting of signal that color, fuzzy rank and order luminescent device " duplicate " color of color reference surface 409.Controller 405 can also be configured to detect triggering signal by detector 407, the triggering signal of this form of great changes of the surrounding environment light that produces because keep very approaching reference surface 409 with luminescent device for example, described triggering represent that the user wishes to change the color of the light 417 that device 400 launched.
Fig. 4 b illustrates controller 405 in more detail.Controller 405 comprises three functional units, and these unit are implemented by hardware circuit and software, and is such just as understood by those skilled in the art.
Penetrate from luminescent device 400 from the light 413 of light source 401 emissions, indicate as Reference numeral 417.Some light that indicated by Reference numeral 413 drop on the color sensor 407.Color adjustment/algorithm 437 makes drive signal be suitable for light source 401 based on the signal from color sensor 407 continuously.By this, it is constant that the output of light source 401 keeps aspect color (and flux), and no matter the variations in temperature of light source 401 and the period through growing very much.This is favourable when luminescent device 400 for example is used for the colour reproduction device.
Can provide fresh target color coordinates signal to light source 401 or the color by copy colors reference surface 409 from external system 451 simply by interface unit 435, change the color of light source 401.Under latter event, light source 401 is positioned under the operational mode, and light emitted has the white light of enough color rendering characteristics under this pattern.In addition, use the data from the most recent of color sensor 407, color adjustment 437 is temporarily shelved (put on hold).Color sensor 407 receives from the light 416 of color reference surface 409 reflections.The output of transducer 407 is converted to new color of object coordinate and is used for light source 401 in converting unit 439 then, and it is provided for light source 401 by interface unit 441.This causes the light 413 of light source 401 emissions to become the color of color reference surface 409.
Fig. 3 schematically illustrates luminescent system 300 very much, and it comprises a plurality of interconnective light-emitting devices 301,303,305, and wherein this light-emitting device is preferably the form about the light-emitting device of the said apparatus 100,200,400 of Fig. 1 and 2 and 4a-b.First light-emitting device 301 comprises controller 307, second light-emitting device 303 comprises that controller 309 and the 3rd light-emitting device 305 comprise that controller 311, the first light-emitting devices 301, second light-emitting device 303 and the 3rd light-emitting device 305 are connected 313 by signal and connect.Controller 307,309,311 comprise that separately communicator and signal connection 313 can be any known jockeys, comprise wired connection and wireless connections.Can use any appropriate signals agreement well known by persons skilled in the art to carry out communication between controller 307,309 and 311.
When in light-emitting device 301,303 or 305 any one when a certain colour atla obtains colouring information, it can use this information, only be used for specific light-emitting device, or described color also can be delivered to other light-emitting devices, makes all devices 301,302 and the identical light of 303 emissions.
Those skilled in the art recognize that the present invention is in no way limited to above preferred embodiment.On the contrary, many distortion and change all can fall within the scope of the appended claims.
Claims (21)
1. a light-emitting device (100,200,400), it is configured to provide required color light (117,215,417), it is characterized in that:
-a plurality of light sources (101,102,103,201,202,203), each light source is configured to launch the light of color separately, when they are mixed, can be perceived as the light of required color,
-photodetector (107,207,407) is configured to receive the light (116,222,416) that is reflected by the color reference surface with special datum color (109,209,409), and
-controller (105,205,224,405), be configured to analyze signal, and the color of received light can be identified as the color of reference surface thus, and be configured to control light source so that required color is corresponding with the color of color reference surface from photodetector.
2. according to the light-emitting device (200) of claim 1, also comprise the white light source (219) that is configured to illuminate color reference surface, and wherein photodetector comprises color sensor, and this color sensor is configured to detect by the white light after the color reference surface reflection.
3. according to the light-emitting device of claim 2, wherein color sensor comprises a plurality of photodiodes that are furnished with chromatic filter.
4. according to the light-emitting device of claim 2, wherein color sensor is a CCD equipment.
5. according to the light-emitting device of claim 1, wherein photodetector comprises an independent photodiode, and its middle controller is configured to sequentially control light source to launch the light of duration separately.
6. according to the light-emitting device of claim 1, wherein photodetector (407) is configured to also detect the direct light (413) from light source, and its middle controller (405) is configured to also control light source according to detected direct light.
7. according to any one light-emitting device of claim 2 to 6, its middle controller is configured to analyze continuously detected light and controls light source continuously.
8. according to any one light-emitting device of claim 2 to 6, its middle controller is configured to as to detected light of the response analysis of triggering signal and control light source.
9. according to any one light-emitting device of claim 1 to 8, also comprise the storage device that is used to store the information relevant, thereby the color that makes a plurality of required colors be stored and wherein be stored is selectable with the control of light source.
10. according to any one light-emitting device of claim 1 to 9, also comprise diffuser (111,211).
11. according to any one light-emitting device of claim 1 to 10, wherein light source meets the RGB system.
12. according to any one light-emitting device of claim 1 to 11, wherein light source is a light-emitting diode.
13. according to any one light-emitting device of claim 1 to 11, wherein light source is a colored fluorescent lamp.
A 14. luminescent system (300), it is configured to provide required color light, it comprises a plurality of according to any one light-emitting device (301,303,305) in the claim 1 to 13, and wherein each light-emitting device also comprises the communicator (307 that is used to transmit signal, 309,311), this signal makes the controller (307 in each device, 309,311) light source can be controlled so that required color is corresponding with the color of color reference surface.
15. a method that is used to provide required color light (117,215) is characterised in that:
-control a plurality of light sources (101,102,103,201,202,203) and launch the light of color separately, when mixing, these light can be perceived as required color,
The light that-reception is reflected by the color reference surface with special datum color (109,209),
-provide the expression the described light that receives signal,
-the color analyzing this signal and discern received light thus is the color of reference surface,
-control light source is so that required color is corresponding with the color of color reference surface.
16. according to the method for claim 15, wherein carry out the control of light source, make light source sequentially launch the light of duration separately.
17., wherein analyze continuously and control according to the method for claim 15 or 16.
18. according to the method for claim 15 or 16, wherein as the response of triggering signal is analyzed and controlled.
19. according to any one method in the claim 15 to 18, also comprise the information that storage is relevant with the control of light source, the color that makes a plurality of required colors be stored and wherein be stored is selectable.
20. according to the method for claim 15, wherein from light source Direct-detection Optical (413) and also wherein also according to detected direct light control light source.
A 21. color controller spare (223), be used to control light-emitting device (200) so that required color light (215) to be provided, described light-emitting device comprises a plurality of light sources (201,202,203), each light source is configured to launch the light of color separately, when these light mix, can be perceived as required color, described color controller spare is characterised in that:
-photodetector (207) is configured to receive the light (222) that is reflected by the color reference surface with special datum color (209), and is configured to provide the signal of the described light that receives of expression, and
-controller (224), be configured to analyze signal from photodetector, and the color that can discern received light thus is the color of reference surface, and the light source that is configured to control in the light-emitting device makes required color corresponding with the color of color reference surface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05103534 | 2005-04-28 | ||
| EP05103534.3 | 2005-04-28 | ||
| EP05105627.3 | 2005-06-23 |
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| Publication Number | Publication Date |
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| CN101167408A true CN101167408A (en) | 2008-04-23 |
| CN100544532C CN100544532C (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200680014386.5A Active CN100544532C (en) | 2005-04-28 | 2006-04-19 | Improved luminescent system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102216676A (en) * | 2008-10-24 | 2011-10-12 | 科锐公司 | Lighting device |
| CN104918372A (en) * | 2015-06-08 | 2015-09-16 | 欧普照明股份有限公司 | Illumination device, and control method and control system thereof |
| CN105114904A (en) * | 2015-08-05 | 2015-12-02 | 汉创企业(中国)有限公司 | Color-sensitive LED light |
| US10251239B2 (en) | 2015-06-08 | 2019-04-02 | Opple Lighting Co., Ltd. | Illuminating device, control method thereof and control system thereof |
| US10285244B2 (en) | 2015-06-08 | 2019-05-07 | Opple Lighting Co., Ltd. | Illuminating device, control method thereof and control system thereof |
-
2006
- 2006-04-19 CN CN200680014386.5A patent/CN100544532C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102216676A (en) * | 2008-10-24 | 2011-10-12 | 科锐公司 | Lighting device |
| US8445824B2 (en) | 2008-10-24 | 2013-05-21 | Cree, Inc. | Lighting device |
| CN102216676B (en) * | 2008-10-24 | 2017-05-17 | 科锐公司 | Lighting device |
| CN104918372A (en) * | 2015-06-08 | 2015-09-16 | 欧普照明股份有限公司 | Illumination device, and control method and control system thereof |
| US10251239B2 (en) | 2015-06-08 | 2019-04-02 | Opple Lighting Co., Ltd. | Illuminating device, control method thereof and control system thereof |
| US10285244B2 (en) | 2015-06-08 | 2019-05-07 | Opple Lighting Co., Ltd. | Illuminating device, control method thereof and control system thereof |
| CN105114904A (en) * | 2015-08-05 | 2015-12-02 | 汉创企业(中国)有限公司 | Color-sensitive LED light |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100544532C (en) | 2009-09-23 |
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