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"Applying protective cover glass layers on either side of the optical diffuser largely maintains the optical properties, yet protects against scratching," says Akira Saito, senior author.

Proceeds will be used to cover glass and plastic material and distribution costs.

Gorilla Glass dominates the market for cover glass for electronic equipment, but it faces rivals, including Dragontrail, a chemically toughened glass manufactured by Asahi Glass in Japan.

Apple recently invested $200 million in Corning, which supplies cover glass for iPhones, with the intention of supporting the company’s manufacturing efforts, already located in Kentucky.

Plus the sensor itself is less susceptible to being scratched if it sits under the same tough cover glass as the display.