KCknows well the requirement for color temperature consistency forthe qualty lighting and also faces the phenomenon ofinconsistencyin termsof color temperature inmarket. is a headache of designers and theconsumers For thirpurpose, KCappliedtheLED chips athigh consistency (SDCMs3) from the quality chips manufacturers.AII LEDchipsare sorted out.stored and processedinstrict and scientific criterion to guarantee the led chips are consistent in the same batch.
In the studyof color vision MacAdamelipses refer to the region on a chromaticity diagram which containsall colorswhichareindstinguishable,to the averagehuman eye, trom the color arthe center of theelipse The contour of theelipse thereforereseresentshhhesjust noticeable differences of chromaticity.
Procedure
MacAdam set up an experimentinwhicha trained observer viewed two differentcolorsatafixed luminance of about Oneofm” Oneofthe colors (the ‘test color) was tixed the otther was adiustable by the observer, and the obser was asked to adjust that the or ulinmatchedthe test color. This matchwas, course, not perfect, since thehumaneye,likeanyotherinstument,haslimited acouracylt wasfound by MacAdam, howeverthat of of the matches made by the observer felinto anelipse on the O/E 1931 chromaticity Themeasurements were made at 25 points on the chromaticity diagram anditwas foundthatthe size and orieniation of the ell thediagram varied widely depending on the testor. These 25 e ellipses measuredby MacAdam, for apaticular obsener are shown on thechromaticity diagram above.
Extension to three dimensions
Amore general concaptis thatof”disciminationelipsoids” inthe entire three-dimensionalor space, which wouldinchude the abityof an observer to discriminate between two diferent luminances of the same color. Such measurements werecarried out, ang others, by Brownand MacAdamin 1949, Davidson in 1951 Browni11957,andby Wyszecki and Fielderin 197. It wassssafound that the discrimination elipsoids yiededrelatively unchanging discriminationellipses in chromaticity space for luminancesbetween 3 and 30 cd/m2.
Effects in color theory
MacAdam’sresults confirmedeariersuspicionsthat color diference could beasuredusingarmetricin Chromatiomationanumber of attempts have been made to define a color space whichisnotas distorted as the CIE XYZ space. Themost notable of thesseseare the CIELUV and CIELABcolorspaces. Although both of these spaces areless distorted than the CIE XYZ space, they are nttocompletely free of distion. This means that the MacAdam elipses become neary (but not exactty) circular these spaces.
COB (chip-on-board) whichgenerates the light evenly over the surface.
COB (chip-on-board) generates the light evenly over thesurface like that of incandescentlamp without doubleimage. The light generated from the fitting with COBmakes the subjectlook natural and clean while fitting withsingle-LED-chip has double image.
natural light
Fitting with COBgenerates the lightseven and soft, making the subject natural and clean and consequently creating strong stereascopic feel.
saw-toothed double light image
Fitting with single-LED-chipgenerates the lights from the scattered chips,making the subject blur and unclear in boundary with double image and consequently creating weak stereascopic feel.
Advanced optical technology
KCseries are developed by adopting world top-class optics technology and processed in scientific and strict techniques to guarantee the optical quality of thisseries.Consequently,KC series had accurate light distribution and high light output and even and soft light while no dark dot, dark area and halo.
virtualimage
High CRI
KC series adopt world top class LED chip.High color rendering with Ra > 90 makes the subject natural and fresh while few LE products can do soat present Lightingin nigh power & high CRI makes the subject outstand in color and material featurd thus perfectly rellectingthe colors of thesubject and of humanbeings. ttis an idea lighting soltion forthe boutiques andimport social activities places etc.
Average Ra evaluation index
Ra Evaluation Indexis applied to estimate the color rendering indexof the lighting product to see the reflection level of natural color compared to those by conventional lighting.
High quality means authentic lighting
Anadvanced professionallighting solution provides for”non-manipulative, authentic ilumination of goods and brands.First-class colour rendering enhances any product’s briliance, harmonizing content and intention.The advanced LEDtechnologyincorporated in KC series produces the rightlight even for fine textures and materials.KC series adopts world-top COB and incorporates latest advanced technology to further enhance the light efficiency and perfect CRI.
Gentle lighting for delicate goods
The LEDlight spectrum contains virtually no radiation in the infrared and ultraviolet regions, which can damage or fade sensitive goods while conventional halogen and HID light contains strong radiation in the infrared and ultraviolet.This means that besides excellent lighting quality. KCseries also meets allthe requirements for providing gentle lighting without having to use additional filters.
