CN105163430A - Temperature measurement-based color temperature adaptive adjustment illumination system - Google Patents
Temperature measurement-based color temperature adaptive adjustment illumination system Download PDFInfo
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- CN105163430A CN105163430A CN201510518078.7A CN201510518078A CN105163430A CN 105163430 A CN105163430 A CN 105163430A CN 201510518078 A CN201510518078 A CN 201510518078A CN 105163430 A CN105163430 A CN 105163430A
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Abstract
The invention discloses a temperature measurement-based color temperature adaptive adjustment illumination system, which comprises a cold light source, a thermal light source, a temperature sensor, a control module, a first brightness adjusting module and a second brightness adjusting module, wherein the control module is connected with the temperature sensor, the first brightness adjusting module and the second brightness adjusting module respectively; the first brightness adjusting module is connected with the cold light source; the second brightness adjusting module is connected with the thermal light source; the color temperature of the thermal light source is less than 3,000K; the color temperature of the cold light source is greater than 5,000K; the temperature sensor is used for sensing the temperature of an external environment and transmitting the temperature to the control module; and the control module is used for adjusting the brightness of the cold light source and the thermal light source according to the received temperature. The temperature measurement-based color temperature adaptive adjustment illumination system is simple in structure and convenient to use, and makes people relatively comfortable; and the color temperature of the light can be adjusted in an adaptive manner.
Description
Technical field
The present invention relates to lighting field, particularly relate to a kind of illuminator based on thermometric colour temperature self-adaptative adjustment.
Background technology
Colour temperature is the index representing that light source light spectrum quality is the most general.Generally represent with Tc.
Colour temperature defines by absolute black body, and the radiation of light source is when visual field is identical with the radiation of absolute black body, and now the temperature of black matrix just claims the colour temperature of this light source.
The feature of low color temperature light sources is in Energy distribution, and red radiation is said some more relatively, is commonly referred to " warm light "; After colour temperature improves, in Energy distribution, the ratio of blue radiation increases, and is commonly referred to " cold light ".The colour temperature of some Ordinary Light Sources Haves is: standard candle is 1930K(kelvin degree unit); Tungsten lamp is 2760-2900K; Fluorescent lamp is 3000K; Photoflash lamp is 3800K; Noon, sunlight was 5600K; Flash tube is 6000K; Blue sky is 12000-18000K.
When discussing colour phhotograpy optical issue, the concept that photographer often mentions " colour temperature ".What colour temperature refers to actually
We know, the light seen by usual human eye, superposed formed by the spectrum of 7 kinds of coloured light.But wherein some light is partially blue, some is then partially red, colour temperature is exactly be used for measuring the method with the color component of compute ray specially, founded by English physicist Lip river moral Kelvin for 19 end of the centurys, he has made a whole set of colour temperature meter algorithm, and the standard that it is specifically determined is the wavelength based on sending with a blackbody radiator.
Colour temperature (ColorTemperature) is high-grade display performance index.We know, can produce one group of spectrum during light source luminescent, and the required a certain temperature reached when producing same spectrum with a black body, this temperature is exactly the colour temperature of this light source.More than 15 inches present numerical control displays, certainly with colour temperature regulatory function, can enable the color of display meet high standard job requirement by this function (generally having 9300K, 6500K, 5000K tri-selection).In expensive goods, some also supports colour temperature Serial regulation function.
The color of light source is commonly used this concept of colour temperature and is represented.The color of source emissioning light and black matrix at a certain temperature radiant light form and aspect simultaneously, the temperature of black matrix is called the colour temperature of this light source.In black body radiation, along with temperature is different, the color of light is different, and black matrix presents by the red---orange red---yellow---yellowish-white---progressive formation that in vain---indigo plant is white.The color of the light that certain light source is launched, when seeming identical with the light color that black matrix is launched at some temperature, this temperature of black matrix is called the colour temperature of this light source.The temperature of " black matrix " is higher, and composition blue in spectrum is then more, and the composition of redness is then fewer.Such as, the photochromic of incandescent lamp is warm white, and its colour temperature is expressed as 2700K, and the colour temperature method for expressing of daylight fluorescent lamp is then 6000K.
Some charging source, its radiative color and launched the at various temperatures light color of black matrix all incomplete same.So use the concept of " correlated colour temperature " in this case.The color of the light that the color of the light that light source is launched and black matrix are launched at a certain temperature closest to time, the temperature of black matrix is just called the correlated colour temperature of this light source.
Light source color temperature is different, and photochromic different, the sensation brought is not identical yet yet:
1. when being less than 3300K, photochromic warm (white with red), steady to people, warm sensation;
2., time between 3000-5000K, photochromic centre (white), to the sensation of people's frankness;
3., when being greater than 5000K, photochromic refrigerant (white that band is blue), to the sensation that people is cold.
Under high color temperature light source irradiates, as brightness is not high, there is a kind of sombre atmosphere to people; Under low color temperature light sources irradiates, the too high meeting of brightness has a kind of sultry sensation to people.
When ambient temperature is higher, we wish to see cold light source, and the light source that namely colour temperature is larger give refrigerant sensation, and when ambient temperature is on the low side, we wishes to see thermal light source, the light source that namely colour temperature is less, give warm sensation.Existing illuminator generally only uses a kind of light source, and its colour temperature is fixing, can not adjust.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides a kind of illuminator based on thermometric colour temperature self-adaptative adjustment.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on the illuminator of thermometric colour temperature self-adaptative adjustment, comprise cold light source, thermal light source, temperature sensor, control module, the first luminance adjustment module and the second luminance adjustment module;
Described control module is connected with temperature sensor, the first luminance adjustment module, the second luminance adjustment module respectively;
Described first luminance adjustment module is connected with cold light source, for regulating the brightness of described cold light source;
Described second luminance adjustment module is connected with thermal light source, for regulating the brightness of described thermal light source;
The colour temperature of described thermal light source is less than 3000K, and the colour temperature of described cold light source is greater than 5000K;
Described temperature sensor for responding to the temperature of external environment condition, and is passed to described control module;
Described control module is used for the brightness adjusting described cold light source and thermal light source according to the temperature received.
As the further prioritization scheme of illuminator that the present invention is based on thermometric colour temperature self-adaptative adjustment, the processor of described control module adopts ARM series monolithic.
As the further prioritization scheme of illuminator that the present invention is based on thermometric colour temperature self-adaptative adjustment, the processor of described control module adopts SAA7750 single-chip microcomputer.
As the further prioritization scheme of illuminator that the present invention is based on thermometric colour temperature self-adaptative adjustment, described cold light source and thermal light source all adopt LED.
As the further prioritization scheme of illuminator that the present invention is based on thermometric colour temperature self-adaptative adjustment, described temperature sensor adopts IC temperature sensor.
As the further prioritization scheme of illuminator that the present invention is based on thermometric colour temperature self-adaptative adjustment, the model of described IC temperature sensor is AD590.
The concrete steps of the brightness of described control module adjustment cold light source and thermal light source are as follows:
Step 1), compares the temperature received and the comfort temperature threshold range preset;
Step 2), if the temperature received is greater than the maximum of default comfort temperature threshold range, lighten the brightness of cold light source, turn down the brightness of thermal light source, make the colour temperature of its mixed light be greater than 5000K;
Step 3), if the temperature received is in the comfort temperature threshold range preset, the brightness of adjustment cold light source and thermal light source, makes the colour temperature of its mixed light between 3000K to 5000K;
Step 4), if the temperature received is less than the minimum value of default comfort temperature threshold range, turns down the brightness of cold light source, lightens the brightness of thermal light source, makes the colour temperature of its mixed light be less than 3000K.
The brightness of described cold light source and thermal light source first can be adjusted respectively according to the brightness steps preset, obtain cold light source and thermal light source under each brightness with the table of comparisons of colour temperature mix light afterwards, then setting procedure 2) the colour temperature threshold value of three kinds of situations to step 4), then in the table of comparisons, find the brightness of its cold light source corresponding respectively and thermal light source, and then adjust.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. can the colour temperature of self-adaptative adjustment light, give more comfortable sensation.
Embodiment
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of illuminator based on thermometric colour temperature self-adaptative adjustment, comprise cold light source, thermal light source, temperature sensor, control module, the first luminance adjustment module and the second luminance adjustment module;
Described control module is connected with temperature sensor, the first luminance adjustment module, the second luminance adjustment module respectively;
Described first luminance adjustment module is connected with cold light source, for regulating the brightness of described cold light source;
Described second luminance adjustment module is connected with thermal light source, for regulating the brightness of described thermal light source;
The colour temperature of described thermal light source is less than 3000K, and the colour temperature of described cold light source is greater than 5000K;
Described temperature sensor for responding to the temperature of external environment condition, and is passed to described control module;
Described control module is used for the brightness adjusting described cold light source and thermal light source according to the temperature received.
The processor of described control module adopts ARM series monolithic, preferential employing SAA7750 single-chip microcomputer.
Described cold light source and thermal light source all adopt LED.
Described temperature sensor adopts IC temperature sensor, and model is AD590.
The concrete steps of the brightness of described control module adjustment cold light source and thermal light source are as follows:
Step 1), compares the temperature received and the comfort temperature threshold range preset;
Step 2), if the temperature received is greater than the maximum of default comfort temperature threshold range, lighten the brightness of cold light source, turn down the brightness of thermal light source, make the colour temperature of its mixed light be greater than 5000K;
Step 3), if the temperature received is in the comfort temperature threshold range preset, the brightness of adjustment cold light source and thermal light source, makes the colour temperature of its mixed light between 3000K to 5000K;
Step 4), if the temperature received is less than the minimum value of default comfort temperature threshold range, turns down the brightness of cold light source, lightens the brightness of thermal light source, makes the colour temperature of its mixed light be less than 3000K.
The brightness of described cold light source and thermal light source first can be adjusted respectively according to the brightness steps preset, obtain cold light source and thermal light source under each brightness with the table of comparisons of colour temperature mix light afterwards, then setting procedure 2) the colour temperature threshold value of three kinds of situations to step 4), then in the table of comparisons, find the brightness of its cold light source corresponding respectively and thermal light source, and then adjust.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. based on the illuminator of thermometric colour temperature self-adaptative adjustment, it is characterized in that, comprise cold light source, thermal light source, temperature sensor, control module, the first luminance adjustment module and the second luminance adjustment module;
Described control module is connected with temperature sensor, the first luminance adjustment module, the second luminance adjustment module respectively;
Described first luminance adjustment module is connected with cold light source, for regulating the brightness of described cold light source;
Described second luminance adjustment module is connected with thermal light source, for regulating the brightness of described thermal light source;
The colour temperature of described thermal light source is less than 3000K, and the colour temperature of described cold light source is greater than 5000K;
Described temperature sensor for responding to the temperature of external environment condition, and is passed to described control module;
Described control module is used for the brightness adjusting described cold light source and thermal light source according to the temperature received.
2. the illuminator based on thermometric colour temperature self-adaptative adjustment according to claim 1, is characterized in that, the processor of described control module adopts ARM series monolithic.
3. the illuminator based on thermometric colour temperature self-adaptative adjustment according to claim 2, is characterized in that, the processor of described control module adopts SAA7750 single-chip microcomputer.
4. the illuminator based on thermometric colour temperature self-adaptative adjustment according to claim 1, it is characterized in that, described cold light source and thermal light source all adopt LED.
5. the illuminator based on thermometric colour temperature self-adaptative adjustment according to claim 1, is characterized in that, described temperature sensor adopts IC temperature sensor.
6. the illuminator based on thermometric colour temperature self-adaptative adjustment according to claim 5, is characterized in that, the model of described IC temperature sensor is AD590.
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| CN201510518078.7A CN105163430A (en) | 2015-08-21 | 2015-08-21 | Temperature measurement-based color temperature adaptive adjustment illumination system |
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| CN201510518078.7A CN105163430A (en) | 2015-08-21 | 2015-08-21 | Temperature measurement-based color temperature adaptive adjustment illumination system |
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| CN101561083A (en) * | 2009-05-27 | 2009-10-21 | 中微光电子(潍坊)有限公司 | LED light-emitting device with variable color temperature and implementation method thereof |
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Application publication date: 20151216 |