HP-2132 Portable color difference meter

HP-2132 Portable color difference meter

Brand: Made in China

Class: Portable color difference meter 
Spec: HP-2132
Use: Widely applied to quality control of plastic and printing industries

◆ Profile
In 1931, the CIE (Commission Internationale De L'Eclairage) set up a series of visible spectrum color space standards. The Basic CIE color space standards is CIE_XYZ. lt is built on standard visual observers on the basis of ability to see, and it reflects the standard scope of color by eye. Based on CIE_XYZ there are CIE_XvY, CIE_Lab, CIE Lch standard color space, etc.

At present, the CIE Lab color space is the most commonly used in the industry. In ClE Lab color space, L value stands for color brightness and a value stands for the Green-on-red value, and b value stands for the blue—on—yellow color value. If determine a value of color by only a group Lab, it will be not practical. However,we can determine the differences among them by comparing two groups of Lab values.
 
◆ Technical Features
> Easy operation make you use it easily
> Widely applied to quality control of plastic and printing industries
> Display directly color difference by △E*ab  △L*a*b  CIE_L*a*b  CIE_L*C*h
> Standard deviation within△E*ab0.2(test condition: choose average values by 12pcs white tabula)
> It can be connected with computer to do the inspection by software with USB expansion interface

◆ Workin-theory                          
Compare the color difference between sample and the measured subject then output CIE_Lab 3 groups data, and the 4 groups of △E, △L, △a, △b data after comparision
△E stands for the totaI color difference
△L+stands for partial white, △L-stands for partial black(cornpa ring with prototype)
△a+stands for pa rtial red, △a—stands for partial green(comparing with prototype)
△b+stands for pa rtial yellow, △b-stands for pa rtial blue(comparing with plrototype)

◆ Skills Indications