Optical indicator requirements
1. Light transmittance [2]: 88% Min. (380-700 nm visible wavelength range), measured by a spectrophotometer.
2, gloss (Gloss):
1) Test instrument: WGG-60 gloss meter
2) Test method: As shown in the figure below, select 5 points on the original film for gloss test. At each point, the instrument reads once every 90 degrees, twice, and then 10 times the test data to obtain the average value. The gloss value of the original piece. Note that the anti-glare treatment surface must be tested for single-sided anti-glare glass.
3) Gloss standard:
a. There are two kinds of anti-glare glass gloss purchase specifications: 100±10 and 80±10, and IQC carries out the feed inspection according to the standards of 100±13 and 80±15 respectively.
b. Conventional size glass of size ≤ 20" requires the difference between the maximum and minimum gloss of the same piece of glass ≤ 10;
Large glass sizes >20" require a difference between the maximum and minimum gloss of the same piece of glass ≤20.
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