Anti-reflection Sapphire Coating

A multilayer deposition ended with an ultra-thin layer of sapphire on rigid or flexible substrate;

• With the requirement of photo quality getting higher and higher, the anti-reflection (AR) layer has to be added on sapphire lens cover to improve their optical transmission. However, most of the anti-reflection materials exhibit a soft surface property, which is easily scratched and abrazed in the daily use.
• Our anti-reflection sapphire coating technology is a multilayer deposition ended with an ultra-thin layer of sapphire. The surface hardness can be achieving upto 7 Mohs Scale

Characteristics:

1. Surface hardness upto Mohs 7
2. In single side deposition, transmission is enhanced with;
   • ~2.7% on Glass (n =1.5); Transmittance = 93.7%
   • ~4.6% on Sapphire (n =1.7); Transmittance = 91%
3. Standard industrial production process

Application:

Lens cover, Glasses, etc.

Our Patents

1. U.S. Patent Number: US 9,695,501 B1; Jul 4, 2017.
2. U.S. Patent Number: US 2016/0024639 A1, Jan 28, 2016.
3. PCT Patent Application Number: PCT/CN2015/089413, Sept 11, 2015.