CN104048187A - Illuminating device with gradually changed color temperatures - Google Patents
Illuminating device with gradually changed color temperatures Download PDFInfo
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- CN104048187A CN104048187A CN201310083241.2A CN201310083241A CN104048187A CN 104048187 A CN104048187 A CN 104048187A CN 201310083241 A CN201310083241 A CN 201310083241A CN 104048187 A CN104048187 A CN 104048187A
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- colour temperature
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Abstract
The invention provides an illuminating device with gradually changed color temperatures. The illuminating device comprises an illuminating module and a control module, wherein the illuminating module is used for generating illuminating light with a plurality of different color temperatures, and the control module is used for controlling the color temperature change of the illuminating light so that the correspondingly changed color deviation value of the illuminating light is smaller than 0.006 when the color temperature changes. In addition, the color rendering index of the illuminating light with different color temperatures is respectively greater than 90 so that the sunlight change is completely simulated.
Description
Technical field
The present invention relates to a kind of lighting device, particularly a kind of lighting device of tool gradual change colour temperature.
Background technology
Have and utilize red, green, blue Tricolor LED (RGB LED) to carry out the light fixture of colour mixture on the market at present, but in general appraisal illumination of the light fixture of this class and background illumination, its main cause is that the property the drilled look of the illumination light of RGB LED is less than 70, and the color rendering that does not meet the room lighting requirement of Energy Star (Energy star) institute standard need be greater than 80 standard.
In addition, existing light adjustable light fixture generally can only present three kinds of illumination light that colour temperature is 2800K, 4000K and 6500K left and right.And this type of light adjustable light fixture general using RGB LED or utilize aquamaine and red brilliant LED adds yellow fluorescent material again, come construction to go out the LED light fixture of adjustable color temperature, but each colour temperature of such product all fail all to meet the requirement that the color rendering of Energy Star institute standard is greater than 80.And, owing to only there being three sections of colour temperatures can supply modulation, so when the illumination light of conversion different-colour, user's vision cannot adapt in real time, thereby usually causes sense of discomfort.
Light adjustable light fixture is in other application of for example light therapy, the brightness that can utilize white light can be in time and the morning twilight emulator (dawn simulator) that changes, usings and use as the melancholia of releiving, seasonal melancholia and adjusting physiological clock phase place.Yet, the light using in light therapy at present, be usually monochromatic high light as blue light or the high white light of brightness, or only have the colour temperature variation of few section, and colour temperature and the illumination change of simulated solar from morning to dusk completely.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of lighting device of tool gradual change colour temperature, it can send has the illumination light that multistage colour temperature changes and do not discover for human body, and the colour index of drilling of every section of colour temperature is all greater than 90.In addition lighting device of the present invention and can further modulate suitable brightness and coordinate colour temperature to change complete solar simulated.
For reaching above-mentioned purpose, the invention provides a kind of lighting device of tool gradual change colour temperature, it comprises a lighting module and a control module.Described lighting module is for generation of the illumination light with a plurality of different-colours.Described control module changes for controlling the colour temperature of described illumination light, makes under described colour temperature changes, and the corresponding colour cast difference changing of described illumination light is less than 0.006.In addition the colour index of drilling that, has an illumination light of described a plurality of different-colours is all greater than 90.
In a preferred embodiment, described colour temperature variation is selected from the variation that 1600K, 1651K, 1705K, 1762K, 1822K, 1886K, 1954K, 2027K, 2105K, 2188K, 2277K, 2373K, 2476K, 2587K, 2700K, 2836K, 3000K, 3128K, 3293K, 3500K, 3666K, 3878K, 4000K, 4362K, 4500K, 5000K, 5288K, 5700K, 6098K, 6500K, 7147K, 7803K, 8582K, 9529K, 10711K, 12242K, 14322K, 17350K and 20000K form any two adjacent colour temperatures in group.
In this preferred embodiment, described control module is further used for controlling the brightness variation of described illumination light.Particularly, the colour temperature that described control module is controlled described illumination light repeatedly changes and the 12000K that arrives from 1600K, and is changed to the curvilinear motion of S type corresponding to the brightness of described a plurality of colour temperatures.In addition, the colour temperature that described control module is controlled described illumination light repeatedly changes and the 1600K that arrives from 12000K, and is changed to reversed S shape variation corresponding to the brightness of described a plurality of colour temperatures.
In another preferred embodiment, described control module is controlled the colour temperature of described illumination light and is carried out repeatedly linear change and the 12000K that arrives from 1600K, and the colour temperature of described illumination light from 1600K carry out repeatedly linear change and time of the 12000K that arrives for from 13:30 to 15:30.
In a preferred embodiment, described lighting module comprises a combination of light sources, and described combination of light sources comprises: one first light emitting diode, and the main wavelength of the light that it sends is 448nm ± 20nm; One second light emitting diode, the main wavelength of the light that it sends is 505nm ± 20nm; One the 3rd light emitting diode, the main wavelength of the light that it sends is 562nm ± 20nm; And one the 4th light emitting diode, the main wavelength of the light that it sends is 619nm ± 20nm.Furthermore, described lighting module further comprises a driver module, it is electrically connected at described combination of light sources and described control module, described driver module is used for driving a plurality of lumination of light emitting diode, and according to described control module, control the energy proportioning of described a plurality of lumination of light emitting diode, so that it sends the illumination light with described a plurality of colour temperature and brightness.
According to the lighting device of tool gradual change colour temperature of the present invention, it is with the illumination light of sending multiple color temperatures of above-mentioned combination of light sources gradual change, and the colour index of drilling of the illumination light of every kind of colour temperature is all greater than 90.Therefore in addition, and the colour cast difference before and after the variation of every section of illumination light is all less than 0.006, by human body, do not discovered.In addition, the colour temperature that the lighting device of tool gradual change colour temperature of the present invention also can be controlled illumination light is changed to 12000K many times from 1600K, and the brightness of corresponding described a plurality of colour temperatures is changed to the curvilinear motion of S type, with the variation of complete emulation morning twilight.Similarly, the colour temperature that the lighting device of tool gradual change colour temperature of the present invention also can be controlled illumination light is changed to 1600K many times from 12000K, and the brightness of corresponding described a plurality of colour temperatures is changed to reversed S shape and changes, with the variation of complete emulation evening twilight.In addition, the illumination light of colour temperature from many linear change of 1600K to 12000K also can be used as the use of the afternoon lethargic sleep of releiving.
Accompanying drawing explanation
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
Fig. 1 is the module diagram of lighting device of the tool gradual change colour temperature of a preferred embodiment of the present invention.
Fig. 2 is the xy chromatic diagram of the illumination light with a plurality of different-colours sent of lighting module of the present invention.
Fig. 3 is the list of a plurality of colour temperatures of the present invention.
Fig. 4 is the brightness variation diagram of the illumination light simulation morning twilight that sends of lighting module of the present invention.
Fig. 5 is the brightness variation diagram of the illumination light simulation evening twilight that sends of lighting module of the present invention.
primary clustering symbol description:
Lighting device 120 lighting modules of 100 tool gradual change colour temperatures
124 combination of light sources 126 driver modules
140 control module 200 black body radiation tracks
1241 first light emitting diode 1,242 second light emitting diodes
1243 the 3rd light emitting diode 1244 the 4th light emitting diodes
The specific embodiment
Below in conjunction with accompanying drawing, describe a preferred embodiment of the lighting device of tool gradual change colour temperature provided by the invention in detail.
Please refer to Fig. 1, the module diagram of the lighting device of the tool gradual change colour temperature of a preferred embodiment of the present invention.The lighting device 100 of the tool gradual change colour temperature described in the present embodiment includes a lighting module 120 and a control module 140.Described lighting module 120 is for generation of the illumination light with a plurality of different-colours.Preferably, described lighting module 120 comprises a combination of light sources 124 and a driver module 126.In the present embodiment, described combination of light sources 124 comprises one first light emitting diode 1241, one second light emitting diode 1242, one the 3rd light emitting diode 1243 and one the 4th light emitting diode 1244.Yet the present invention does not limit lighting module 120 for only implementing with light emitting diode (LED), other all can be used for implementing the present invention as the assembly that Organic Light Emitting Diode (OLED) etc. has the characteristics of luminescence.
The main wavelength of the light that furthermore, described the first light emitting diode 1241 sends is 448nm ± 20nm; The main wavelength of the light that described the second light emitting diode 1242 sends is 505nm ± 20nm; The main wavelength of the light that described the 3rd light emitting diode 1243 sends is 562nm ± 20nm; And the main wavelength of the light that described the 4th light emitting diode 1244 sends is 619nm ± 20nm.In addition, above-mentioned four LED are arranged in same circuit board (not shown) very close to ground each other, to reach preferred light mixing effect.It should be noted that the present invention does not limit the arrangement mode of above-mentioned four LED.
As shown in Figure 1, described driver module 126 is electrically connected to described combination of light sources 124 and described control module 140.Specifically, described driver module 126 is electrically connected to respectively described the first light emitting diode 1241, the second light emitting diode 1242, the 3rd light emitting diode 1243 and the 4th light emitting diode 1244.Described driver module 126 is for driving above-mentioned a plurality of light emitting diode to make it luminous, and according to described control module 140, controls the energy proportioning of described a plurality of lumination of light emitting diode, to send the illumination light with described a plurality of colour temperature and brightness.Specifically, described driver module 126 can be a microprocessor (microprocessor), described microprocessor can synchronously be sent four kinds of pulse bandwidth modulation (Pulse Width Modulation, PWM) signal is also delivered to respectively corresponding light emitting diode, to regulate and control described the first light emitting diode 1241, the second light emitting diode 1242, the 3rd light emitting diode 1243 and the luminous energy proportioning of the 4th light emitting diode 1244.When described a plurality of light emitting diodes receive suitable pwm signal, just can send the illumination light with multiple color temperatures, and these illumination light all can meet the standard that colour index is greater than 80 of drilling of Energy Star.What is more, by the energy proportioning of suitable each LED of allotment, the colour index of drilling of the illumination light with described a plurality of different-colours that the combination of light sources 124 of the present embodiment is sent is all greater than 90.Accordingly, the lighting device 100 of the gradual change colour temperature described in the present embodiment will have splendid illuminating effect.
Below the function mode for control module 140 is described in detail.Please refer to Fig. 2 and Fig. 3, Fig. 2 is the xy chromatic diagram (chromaticity diagram) of the illumination light with a plurality of different-colours sent of lighting module 120 of the present invention; Fig. 3 is the list of a plurality of colour temperatures of the present invention.Described control module 140 changes for controlling the colour temperature of described illumination light, so that under described colour temperature changes, corresponding colo(u)r bias (Duv) value changing of described illumination light is less than 0.006.Please with reference to Fig. 1 and Fig. 2, described control module 140 can be controlled driver module 126, and make driver module 126 send suitable pwm signal, the driving light source of take combination 124(is that main wavelength is 448nm, 505nm, 562nm and 619nm) and mix the illumination light with a plurality of different-colours, the illumination light wherein with described a plurality of different-colours all drops in black body radiation track 200 in xy chromatic diagram, wherein the illumination light of the representative of each colour temperature in xy chromatic diagram with * represent.Preferably, described colour temperature is from partially red 1600K gradual change to partially blue 20000K.
The colour temperature that the control module 140 of the present embodiment can be controlled described illumination light changes, so that colo(u)r bias (Duv) value of illumination light before and after colour temperature changes is less than 0.006, allows whereby colour temperature variation can not discovered by human body, and reaches the effect of gradual change.As shown in Figure 3, in the present embodiment, listed from 1600K to 20000K changes, each colour temperature changes the maximum changing amplitude that is no more than colour cast difference 0.006.In brief, described a plurality of colour temperature variation is selected from the variation that 1600K, 1651K, 1705K, 1762K, 1822K, 1886K, 1954K, 2027K, 2105K, 2188K, 2277K, 2373K, 2476K, 2587K, 2700K, 2836K, 3000K, 3128K, 3293K, 3500K, 3666K, 3878K, 4000K, 4362K, 4500K, 5000K, 5288K, 5700K, 6098K, 6500K, 7147K, 7803K, 8582K, 9529K, 10711K, 12242K, 14322K, 17350K and 20000K form any two adjacent colour temperatures in group.Yet, in other embodiments, different light sources has different colour temperatures and changes numerical value, it can convert uv coordinate in the xy of xy chromatic diagram chromaticity coordinate (chromaticity coordinate) by each illumination light, whether the distance of the uv coordinate before and after relatively changing is again less than 0.006, can draw required colour temperature change list, its concrete steps are not repeated at this.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the brightness variation diagram of the illumination light simulation morning twilight that sends of lighting module 120 of the present invention; Fig. 5 is the brightness variation diagram of the illumination light simulation evening twilight that sends of lighting module 120 of the present invention.For the variation of solar simulated from morning to dusk, described control module 140 is further used for controlling the brightness variation of described illumination light.
Specifically, when the lighting device 100 of described tool gradual change colour temperature is used as morning twilight emulator, the colour temperature that described control module 140 can be controlled described illumination light repeatedly changes and the 12000K that arrives from 1600K, and as shown in Figure 4, brightness variation corresponding to described a plurality of colour temperatures is rendered as S type curve (sigmoidal curve) variation, and transformation period is about 6 hours.Specifically, morning twilight emulator can be by, and for example spring, the Autumnal Equinox, morning, 6 sun rose, and be points in mornings five Summer Solstice, and six thirty of morning in Winter Solstice, these times are worked as starting point.The interval colour temperature of the first period T1 and illumination change relax, colour temperature starts to become every 6 minutes a colour temperature from 2000K, 5 kinds of colour temperatures of co-variationization, the interval colour temperature of the second period T2 and illumination change are more violent, become a colour temperature, 20 kinds of colour temperatures of co-variationization every 4.5 minutes, the interval colour temperature of the 3rd period T3 changes slightly slow, every 12 minutes, become a colour temperature, 4 kinds of colour temperatures of co-variationization maintain colour temperature 12000 K later.After setting colour temperature variation, then control described combination of light sources 124 by control module 140, and the required brightness of sending the illumination light of each colour temperature.The colour temperature of the morning twilight emulator described in the present embodiment and brightness all dynamically change, compared with generally only making the light adjustable light fixture that brightness changes, morning twilight emulator described in the present embodiment during as bedside lamp, has the hypochondriacal effect of better releiving in being applied to bedroom.
Similarly, the lighting device 100 of described tool gradual change colour temperature can be used for as evening twilight emulator, the colour temperature that described control module 140 can be controlled described illumination light is changed to 1600K many times from 12000K, and the brightness of corresponding described a plurality of colour temperatures is changed to reversed S shape (reverse-sigmoidal curve) and changes, and transformation period is about 6 hours.The colour temperature of described illumination light and the variation of brightness are contrary with aforementioned morning twilight emulator, at this, are not repeated.
In other embodiments of the invention, the lighting device 100 of described tool gradual change colour temperature also can be used as the use of the afternoon lethargic sleep of releiving, described control module 140 is controlled the colour temperature of described illumination light and is carried out repeatedly linear (linear) variation and the 12000K that arrives from 1600K, and the time of the colour temperature of described illumination light from many linear change of 1600K to 12000K, be preferably from afternoon 13:30 to 15:30, it has the effect of the alertness that improves user.
In sum, the lighting device 100 of tool gradual change colour temperature of the present invention is with above-mentioned combination of light sources 124, to carry out gradual change and send the illumination light of multiple color temperatures, and the colour index of drilling of the illumination light of every kind of colour temperature is all greater than 90.In addition, the colour cast difference before and after every section of illumination light changes is all less than 0.006, therefore can't be discovered by human body.In addition, the lighting device 100 of tool gradual change colour temperature of the present invention, the colour temperature that also can control illumination light repeatedly changes and the 12000K that arrives from 1600K, and is changed to the curvilinear motion of S type corresponding to the brightness of described a plurality of colour temperatures, with the variation of complete emulation morning twilight.Similarly, the colour temperature that the lighting device of tool gradual change colour temperature of the present invention also can be controlled illumination light repeatedly changes and the 1600K that arrives from 12000K, and is changed to reversed S shape variation corresponding to the brightness of described a plurality of colour temperatures, with the variation of complete emulation evening twilight.In addition, colour temperature is carried out repeatedly linear change and the illumination light of the 12000K that arrives also can be used as the use of the afternoon lethargic sleep of releiving from 1600K.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a lighting device for tool gradual change colour temperature, is characterized in that, comprising: a lighting module, for generation of the illumination light with a plurality of different-colours; And a control module, for controlling the colour temperature of described illumination light, change, make under described colour temperature changes, the corresponding colour cast difference changing of described illumination light is less than 0.006.
2. the lighting device of tool gradual change colour temperature according to claim 1, is characterized in that, the colour index of drilling with the illumination light of described a plurality of different-colours is all greater than 90.
3. the lighting device of tool gradual change colour temperature according to claim 1, it is characterized in that, described colour temperature variation is selected from 1600K, 1651K, 1705K, 1762K, 1822K, 1886K, 1954K, 2027K, 2105K, 2188K, 2277K, 2373K, 2476K, 2587K, 2700K, 2836K, 3000K, 3128K, 3293K, 3500K, 3666K, 3878K, 4000K, 4362K, 4500K, 5000K, 5288K, 5700K, 6098K, 6500K, 7147K, 7803K, 8582K, 9529K, 10711K, 12242K, 14322K, 17350K, and 20000K forms the variation of any two adjacent colour temperatures in group.
4. the lighting device of tool gradual change colour temperature according to claim 1, is characterized in that, described control module is further used for controlling the brightness variation of described illumination light.
5. the lighting device of tool gradual change colour temperature according to claim 4, it is characterized in that, the colour temperature that described control module is controlled described illumination light repeatedly changes and the 12000K that arrives from 1600K, and is changed to the curvilinear motion of S type corresponding to the brightness of described a plurality of colour temperatures.
6. the lighting device of tool gradual change colour temperature according to claim 4, it is characterized in that, the colour temperature that described control module is controlled described illumination light repeatedly changes and the 1600K that arrives from 12000K, and is changed to reversed S shape variation corresponding to the brightness of described a plurality of colour temperatures.
7. the lighting device of tool gradual change colour temperature according to claim 4, is characterized in that, described control module is controlled the colour temperature of described illumination light and carried out repeatedly linear change and the 12000K that arrives from 1600K.
8. the lighting device of tool gradual change colour temperature according to claim 4, is characterized in that, the colour temperature of described illumination light from 1600K carry out repeatedly linear change and time of the 12000K that arrives for from 13:30 to 15:30.
9. the lighting device of tool gradual change colour temperature according to claim 1, is characterized in that, described lighting module comprises a combination of light sources, and described combination of light sources comprises:
One first light emitting diode, the main wavelength of the light that it sends is 448nm ± 20nm;
One second light emitting diode, the main wavelength of the light that it sends is 505nm ± 20nm;
One the 3rd light emitting diode, the main wavelength of the light that it sends is 562nm ± 20nm; And
One the 4th light emitting diode, the main wavelength of the light that it sends is 619nm ± 20nm.
10. the lighting device of tool gradual change colour temperature according to claim 9, is characterized in that, described lighting module further comprises:
One driver module, be electrically connected at described combination of light sources and described control module, described driver module is used for driving a plurality of lumination of light emitting diode, and according to described control module, control the energy proportioning of described a plurality of lumination of light emitting diode, so that described a plurality of light emitting diode sends the illumination light with described a plurality of colour temperature and brightness.
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| CN201310083241.2A CN104048187A (en) | 2013-03-15 | 2013-03-15 | Illuminating device with gradually changed color temperatures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107278251A (en) * | 2017-01-22 | 2017-10-20 | 深圳市窗科技有限责任公司 | A kind of control device and control system |
| US20230239985A1 (en) * | 2016-09-14 | 2023-07-27 | Lutron Technology Company Llc | Illumination system and method that presents a natural show to emulate daylight conditions with smoothing dimcurve modification thereof |
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| TWM446271U (en) * | 2012-08-15 | 2013-02-01 | Univ Nat Taiwan Science Tech | Lighting lamp |
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| JP2009158903A (en) * | 2007-12-05 | 2009-07-16 | Toshiba Lighting & Technology Corp | Led light emitting unit and light-emitting device |
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Application publication date: 20140917 |