When we measure the reflectance of anti-reflection film on the lens,  Traditional scheme can reduce the reflection of the substrate and the other side surface of the lens by frosting one side of lens to the black color. The process is tedious and will create operating errors.

IR-5 adopts a unique confocal scheme with a very short focal depth to support direct measurement of surface of the sample, free from reflected light from other objects to achieve non-contact and non-destructive testing.

Advanced general color difference △ E2000

CIE is more advanced in calculation of color aberration by the difference of the human eye sensitivity to color. More accurate simulation of subjective chromatic aberration of human eye can be obtained. As can be seen from the photo below, the human eye is most sensitive to orange color while least sensitive to cyan color .

* * * Note: The shorter the minor axis of the elliptical shape in the figure, the smaller the color tolerance.

The change in reflected color of samples under different ambient light

Samples show different colors under different ambient light, and iR-5 provides standard irradiation at different color temperature and calculates the chromaticity values at 2 ° and 10 ° from observer’s angle respectively. The objective and accurate measurement results can be used to guide the reproduction of color coating and anti-reflection coating technology, and provide color reports between standard sample and tested sample, or anti-reflection Film Report as per ISO Standard. 

Optical fiber confocal mode to avoid interference of light

When measuring the reflectivity of the anti-reflection film of the lens, the traditional scheme can reduce the reflection of the substrate and the other side surface of the lens by frosting one side of lens to the black color. The process is tedious and will create operating errors. iR-5 adopts a unique confocal scheme with a very short focal depth to support direct measurement of surface of the sample, free from reflected light from other objects to achieve non-contact and non-destructive testing.

Comparison of tested sample and master sample 

In below photo, white cross is standard sample while black cross is master sample

**   CIE1931 Color Coordinate                                                     CIE1976 Color Coordinate 

”S” in orange is master sample, ”T” in blue is tested sample

Reflectance curve for tested sample and master sample

Function：

Reflectance curve chart: Display reflectance curve (range :380 ~ 850 nm) . The wavelength can be customized within range

Chart Graduation Line: Display vertical and horizontal graduation lines

Quick Preview on Reflectance :The vertical graduation line can display corresponding reflectance of current wavelength

Reflection color contrast:The color difference can be calculated by comparing real-time data with those from master sample

Sampling interval: Calculation of pv, pm at 1nm or 5nm wavelength interval

Sample Information: Input of sample testing company and sample information

Reflection colorimetric report: Reflection colorimetric report output showing chromatic aberration, color coordinate

Reflection report: report and reflectance curve as per ISO and GB testing standard

Data save:Support file archived in TXT and Excel

Color calculation: Human visual parallax E2000, chromatic aberration ΔE, ΔH, ΔC and LAB coordinate ,CIE XY difference

ISO standard light source calculation: A D65 C D50a D55 D75 ID65 ID50 light source calculation

ISO observer's angle: 2 ° and 10 ° calculations

Reflectance display: Integral reflectance pv, average reflectance pm,  reflectance at single wavelength pλ

Computer configuration:Windows 10/11