CN204788660U - Intelligence lamp house of checking colors based on LED - Google Patents
Intelligence lamp house of checking colors based on LED Download PDFInfo
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- CN204788660U CN204788660U CN201520219078.2U CN201520219078U CN204788660U CN 204788660 U CN204788660 U CN 204788660U CN 201520219078 U CN201520219078 U CN 201520219078U CN 204788660 U CN204788660 U CN 204788660U
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Abstract
The utility model discloses an intelligence lamp house of checking colors based on LED uses the light source through adopting the combination of LED light source and tungsten lamp as the illumination of checking colors, utilizes both the combination of spectrum power distribution character to obtain the more excellent source of illumination that checks colors of color development characteristic, still through set up the filter before the tungsten lamp, the combination obtains more excellent spectral power distribution, further optimizes the color development characteristic of light source. Utilize LED or tungsten lamp the luminous relative spectrum power distributed data under different electric currents or pulse width drive of prestore in the memory unit, more all kinds of standard source of illumination of accurate simulation improve authenticity and reliability that the colour was compared.
Description
[technical field]
The present invention relates to color detection field, be specifically related to a kind of VERIVIDE COLOR ASSESMENT CABINET.
[background technology]
In modern industry, there is more and more higher requirement to like product consistency of colour and accuracy.Along with the development of science and technology, reviewer is relied on to be compared to sample and standard color comparison card by naked eyes under common illumination to the inspection of product colour from initial, to differentiate the misalignment between sample and standard color comparison card, develop into gradually sample and standard colorimetric are placed in built-in standard sources colour assessment apparatus in test, standard sources is usually used in simulating the artificial light sources under various ambient light.The surface reflection color of different objects matches, but the spectral power distribution that they reflect is different, and this phenomenon is referred to as metamerism (metamerism).When the main ripple that little in light source light spectrum or shortage object reflect under reference light source, color can be made to produce obvious aberration, and this can cause the generation of metamerism, thus the result causing the non-at-scene acquisition such as production plant or laboratory inconsistent with object color under the light illumination under these specific environments, the reliability of product colour inspection in the industry such as impact weaving, printing and coating.Adopting light box to carry out evaluation to the color of object under various criterion light source can effectivelyly prevent the phenomenon of metamerism from occurring.
In order to reduce the risk that metamerism phenomenon is brought color evaluation reliability, notification number is that patent discloses of US8592748B2 is a kind of based on the colorimetric lamp box of different-colour LED light source for solar simulated spectrum.Though LED light source has abundant spectrum, but there are the shortcomings such as tool colour rendering index is low, spectrum is imperfect, the accompanying drawing 5.1 (as shown in Figure 1) provided from this patent can be found out clearly, the whole structure of simulation is not very good, especially after 630nm, the difference of wave band is more obvious, and fails to realize high-quality solar simulated spectrum.Notification number be CN101883971A patent discloses a kind of colour assessment apparatus based on fluorescent light and multiple light emitting diode, life-span is short, look drifts about is obviously one of shortcoming of fluorescent light in time, therefore this invention utilizes LED light source to compensate the spectrum change of fluorescent light when aging, but because the luminescent spectrum of fluorescent light is non-adjustable, and have larger gap with standard sources, so the light source of this kind through compensating still can not well implement color comparison.
[summary of the invention]
For above-mentioned the deficiencies in the prior art, the present invention aims to provide and a kind ofly adopts LED light source and tungsten lamp combination as the intelligent VERIVIDE COLOR ASSESMENT CABINET of test light source of throwing light on.By the spectral power distribution characteristic of combination, both utilizations, light source control unit is coordinated to regulate light source luminescent power and switch, with better mock standard light source; Also according to the difference of testing requirement, dissimilar standard sources can be simulated simultaneously, shades of colour comparison occasion can be applicable to widely.
The LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET of one of the present invention is achieved through the following technical solutions: a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET, it is characterized in that, comprise casing, light source group and light source control unit, described light source group comprises LED light source and tungsten lamp, and described light source control unit controls light source group and sends the light of specifying spectrum.
In the last few years along with the development of semiconductor technology, LED relied on the advantages such as its specular removal, little color tolerance, energy-conserving and environment-protective to be widely used in various lighting field.But still there is many defects (as shown in Figure 2) in the spectrum that LED light source sends, no matter colour temperature height, LED light spectrum in whole visible-range not exclusively and skewness, such as, near 450nm or 600nm, its spectral response is too high, and its spectral response is too low on the wave band being less than near 420nm or 480nm or be greater than 700nm, that is to say that in LED light spectrum, blue light ingredient is many, the composition of ruddiness and green glow is on the low side.Tungsten lamp is often regarded as desirable reference light source, has colour rendering good, the features such as continuously light-adjustable (as shown in Figure 2), its spectral power distribution in red range much larger than the spectral power distribution of royal purple wave band.Both separately as all can not high-quality solar simulated during detection illumination light source, have impact on the application and development in both each comfortable color evaluation fields.The present invention, by the spectral power distribution characteristic of combination, both utilizations, can obtain comparatively equally distributed spectral power distribution in visible light wave range.
It is pointed out that tungsten lamp here can be incandescent lamp or halogen tungsten lamp; Described LED light source comprises at least one LED white light source and one or above monochromatic LED, monochromatic LED is used for carrying out light filling to the combined light source of LED white light source and tungsten filament lamp sources, so that the better various detection illumination light source of simulation, improves reliability and the authenticity of colorimetric.
The present invention is rear simultaneously luminous by LED light source and tungsten lamp being combined, light source control unit is utilized to control the luminescence of each arbitrary source in light source group, control power and the switch of light source luminescent, by phase complementary light, send the light of specifying spectrum after mixing, this light all has stronger spectral power distribution in each wave band, and then can obtain the light source with higher development properties, the reliability of further raising object color visual evaluation, effectively overcomes metamerism phenomenon.
The present invention also limits by following technical scheme and perfect further:
As a kind of technical scheme, comprise color filter, before the tungsten lamp in described light source group, color filter is set.Take colour temperature as the light source group of the cold white LEDs light source of 6500k and incandescent lamp composition be example, colour temperature is that the spectral response of cold white LEDs light source in the wavelength band of 520nm-780nm of 6500k is more weak, the spectral response of incandescent lamp in respective range is stronger, by arranging the color filter of corresponding wave band before incandescent lamp, the light source of filtering incandescent light source wave band before 520nm, thus make the combined light source after filtering all have stronger spectral response within the scope of whole visible light wave range; Also by adding multiple corresponding monochromatic LED light source, light filling is carried out to combined light source, to reach the effect improving combined light source development properties and simulation further simultaneously.By combinationally using of LED light source, tungsten lamp and color filter, the present invention is applicable to the various types of standard sources of simulation, as D65, standard A light source etc.
As a kind of technical scheme, described light source control unit comprises multiple independently program control driving subelement, the unlatching of each arbitrary source of the independent driving light source group of described multiple independently program control driving subelement, closedown and luminous strong and weak adjustment.Light source has different spectral distribution properties under different luminous intensities, and the luminous intensity of change light source can realize the adjustment to light source light spectral power distributions.
As a kind of technical scheme, described light source group is under the control of light source control unit, and the LED light source in light source group and tungsten lamp are simultaneously luminous, and mixing sends the light of specifying spectrum.As mentioned before, LED light source and tungsten filament lamp sources all have its respective shortcoming as detecting the independent luminous-circuit standard sources of illumination light source, and both combine by the present invention cleverly, can obtain the light source that color developing effect is better, analog result is more excellent.
As a kind of technical scheme, the LED light source in described light source group and tungsten lamp in casing above scattering device, the LED light source in light source group and tungsten lamp can be arranged in a variety of forms: such as, LED light source and tungsten lamp between two interval, gather arrange; Or every the tungsten lamp of several LED light sources arrangement equal amount.
As a kind of technical scheme, described light source control unit realizes the switch of the LED light source in light source group or tungsten lamp by regulating size of current or adjusting pulsewidth size or gauge tap and strong and weakly to regulate.For LED light source, the output characteristics of LED and its electrical quantity have close contacting, and can realize the luminous strong and weak adjustment of LED light source, and then change the distribution of luminescent spectrum power by changing electrical quantity; PWM technology reaches the method for adjustment voltage, electric current by adjustment pulse duty factor, indirectly changes the distribution of luminescent spectrum power.Light source control unit controls the switch of light source in light source and strong and weak adjustment by said method, then changes combined light source spectral power distribution, realizes sending the object of specifying spectrum.
As a kind of technical scheme, also comprise intelligent processor and mnemon, the LED light source in light source group and the luminous relative spectral power distributions data of tungsten lamp under different electric current or pulsewidth drive are stored in described mnemon, intelligent processor is by calling the data in mnemon, contrast and specify luminescent spectrum distribution, the LED light source after parsing, process in light source control unit control light source group and the luminescence of tungsten lamp.Intelligent processor is by calling LED light source in the light source group that stores in mnemon and the luminous relative spectral power distributions data of tungsten lamp under different electric current or pulsewidth drive, luminescent spectrum is specified in comparison, resolve after by preset light source option program select with specify luminescent spectrum distribute close or consistent spectrum corresponding needed for LED light source and tungsten lamp type and luminescence power, and conditioning signal is fed back to light source control unit, light source control unit controls the switch of corresponding light source in light source group and luminous power according to the signal received.
As preferably, also comprise the even tabula rasa of diffuse transmission, the even tabula rasa of described diffuse transmission is arranged on the below of light source group, the light that described light source group sends outgoing after the even light of the even tabula rasa of diffuse transmission and mixed light.In the light that light source group sends, a part of light is directly transmitted on sample through the even tabula rasa of diffuse transmission; Another part light first mixes after the reflection of diffuse transmission even tabula rasa in the space that the even tabula rasa of diffuse transmission and casing upper wall form, be transmitted on sample through the even tabula rasa of diffuse transmission after even light again.
As preferably, the top of casing scribbles highly-reflective coating, the light that described light source group sends outgoing after highly-reflective coating and the even light of the even tabula rasa of diffuse transmission and mixed light.Scribble high reflection layer due to above now casing, light incide after above casing can with higher reflective in the space that the even tabula rasa of diffuse transmission and casing upper wall form, to make mixed light in this space evenly rear outgoing.
In sum, the present invention adopts LED light source and tungsten lamp combination as detecting illumination light source, and both utilizations spectral power distribution property combination obtains the more excellent test light source of development properties; By arranging color filter before tungsten lamp, combination obtains more excellent spectral power distribution, optimizes the development properties of light source further.Utilize the LED or the luminous relative spectral power distributions data of tungsten lamp under different electric current or pulsewidth drive that are stored in advance in mnemon, all kinds of standard sources of simulation that can be more accurate and intelligent, improves reliability and the authenticity of color comparison.
[accompanying drawing explanation]
Accompanying drawing 1 is the design sketch utilizing LED light source analog D 50 light source;
Accompanying drawing 2 is spectral power distributions of different-colour LED white light source and standard A light source;
Accompanying drawing 3 be the spectral power distribution of spectral power distribution in embodiment 1 after light modulation and D65 standard illuminants light source according to scheming;
Accompanying drawing 4 is schematic diagram of embodiment 2;
2-1-LED light source; 2-2-tungsten lamp.
[embodiment]
Embodiment 1
A kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET is disclosed in the present embodiment, comprise casing, light source group and light source control unit and color filter, light source group comprises LED light source 2-1 and tungsten lamp 2-2, wherein LED light source 2-1 comprises the cold white LEDs light source and several monochromatic LEDs (specifically in table 1) that a colour temperature is 6500k, and tungsten lamp 2-2 used is here incandescent lamp.Color filter is set before incandescent lamp, the light source of color filter filtering incandescent lamp wavelength band before 520nm.Each independently program control driving subelement in light source control unit, respectively, regulates separately the strong and weak and switch of the luminescence of LED white light source, several monochromatic LEDs and incandescent lamp.
In the present embodiment, the light modulation coefficient of LED white light source is 0.6, and the light modulation coefficient of incandescent light source is 0.6, and specifically the light modulation coefficient situation of each monochromatic LED is in table 1.Here light modulation coefficient can be using the maximal value of spectral power distribution as benchmark, can also be using the integrated value of whole visible light wave range spectral power distribution as benchmark, and that the present embodiment adopts is the former.Fig. 3 be the spectral power distribution of spectral power distribution after light modulation and D65 standard illuminants light source according to scheming.
Table 1 the present embodiment monochromatic LED light source used and respective light modulation coefficient thereof
| Predominant wavelength | Light modulation coefficient | Predominant wavelength | Light modulation coefficient |
| 365nm | 0.4 | 425nm | 0.4 |
| 375nm | 0.4 | 435nm | 0.4 |
| 385nm | 0.4 | 475nm | 0.3 |
| 395nm | 0.4 | 495nm | 0.55 |
| 405nm | 0.4 | 515nm | 0.3 |
| 415nm | 0.4 |
Embodiment 2
As shown in Figure 4, present embodiment discloses the arrangement mode of light source group in a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET.Wherein LED light source 2-1 and tungsten lamp 2-2 between two interval, gather arrange; Or the tungsten lamp 2-2 light source of equal amount of arranging every 2 LED light source 2-1, to make lamp box distribution of light sources everywhere more even.
It is emphasized that, below be only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET, it is characterized in that, comprise casing, light source group and light source control unit, described light source group comprises LED light source (2-1) and tungsten lamp (2-2), and described light source control unit controls light source group and sends the light of specifying spectrum.
2. a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET as claimed in claim 1, it is characterized in that, comprise color filter, the tungsten lamp (2-2) in described light source group is front arranges color filter.
3. a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET as claimed in claim 1, it is characterized in that, described light source control unit comprises multiple independently program control driving subelement, the unlatching of each arbitrary source of the independent driving light source group of described multiple independently program control driving subelement, closedown and luminous strong and weak adjustment.
4. the LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET of the one as described in claim 1 or 3, it is characterized in that, described light source group is under the control of light source control unit, LED light source (2-1) in light source group and tungsten lamp (2-2) are simultaneously luminous, and mixing sends the light of specifying spectrum.
5. a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET as claimed in claim 1, is characterized in that, the LED light source (2-1) in described light source group and tungsten lamp (2-2) be top scattering device in casing (1).
6. the LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET of the one as described in claim 1 or 3, it is characterized in that, described light source control unit realizes the switch of the LED light source (2-1) in light source group or tungsten lamp (2-2) by regulating size of current or adjusting pulsewidth size or gauge tap and strong and weakly to regulate.
7. the LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET of the one as described in claim 1 or 3, it is characterized in that, also comprise intelligent processor and mnemon, the LED light source (2-1) in light source group and the luminous relative spectral power distributions data of tungsten lamp (2-2) under different electric current or pulsewidth drive are stored in described mnemon, intelligent processor is by calling the data in mnemon, contrast and specify luminescent spectrum distribution, the LED light source (2-1) after parsing, process in light source control unit control light source group and the luminescence of tungsten lamp (2-2).
8. a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET as claimed in claim 1, it is characterized in that, comprise the even tabula rasa of diffuse transmission, the even tabula rasa of described diffuse transmission is arranged on the below of light source group, the light that described light source group sends outgoing after the even light of the even tabula rasa of diffuse transmission and mixed light.
9. a kind of LED-based intelligent VERIVIDE COLOR ASSESMENT CABINET as claimed in claim 8, it is characterized in that, the top of casing scribbles highly-reflective coating, the light that described light source group sends outgoing after highly-reflective coating and the even light of the even tabula rasa of diffuse transmission and mixed light.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520219078.2U CN204788660U (en) | 2015-04-13 | 2015-04-13 | Intelligence lamp house of checking colors based on LED |
| PCT/CN2016/072280 WO2016165448A1 (en) | 2015-04-13 | 2016-01-27 | Led-based smart color viewing light booth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520219078.2U CN204788660U (en) | 2015-04-13 | 2015-04-13 | Intelligence lamp house of checking colors based on LED |
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| CN204788660U true CN204788660U (en) | 2015-11-18 |
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| CN201520219078.2U Active CN204788660U (en) | 2015-04-13 | 2015-04-13 | Intelligence lamp house of checking colors based on LED |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105517246A (en) * | 2016-01-15 | 2016-04-20 | 常州千明智能照明科技有限公司 | Multi-channel LED (light-emitting diode)-based verivide color assessment cabinet |
| WO2016165448A1 (en) * | 2015-04-13 | 2016-10-20 | 杭州远方光电信息股份有限公司 | Led-based smart color viewing light booth |
| CN104748848B (en) * | 2015-04-13 | 2017-04-12 | 杭州远方光电信息股份有限公司 | LED-based intelligent color assessment cabinet |
| CN107631178A (en) * | 2017-10-27 | 2018-01-26 | 广东凯西欧照明有限公司 | A kind of life spectrum module |
-
2015
- 2015-04-13 CN CN201520219078.2U patent/CN204788660U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165448A1 (en) * | 2015-04-13 | 2016-10-20 | 杭州远方光电信息股份有限公司 | Led-based smart color viewing light booth |
| CN104748848B (en) * | 2015-04-13 | 2017-04-12 | 杭州远方光电信息股份有限公司 | LED-based intelligent color assessment cabinet |
| CN105517246A (en) * | 2016-01-15 | 2016-04-20 | 常州千明智能照明科技有限公司 | Multi-channel LED (light-emitting diode)-based verivide color assessment cabinet |
| CN107631178A (en) * | 2017-10-27 | 2018-01-26 | 广东凯西欧照明有限公司 | A kind of life spectrum module |
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