HCEB Series Large E-beam Evaporation Optical Coating Machine

AR film (substrate glass transmittance > 91.5%):

• In 420-680nm band, the average transmittance of one side is more than 95%, and the reflectivity is less than 0.5 (average);
• The average transmittance on both sides is more than 98%, and the reflectivity is less than 0.5 (average);

AS/AF membrane test standard:

• The range of initial contact angle is 115 ± 5 °;
• Friction resistance test standard of steel wool: use 0000 × 10 mm steel wool, area is 10 * 10 mm, travel 40 times / min, load 1kg, after 5000 times of back and forth friction, contact angle is greater than 100 °;
• Test standard of eraser: 6mm diameter eraser, 25 strokes / min, 1kg load, 2500 round-trip friction, contact angle greater than 100 °;

Note: the test sample glass shall be the touch screen cover plate special glass after precision polishing, with smooth surface.