What is AR coating used for?| Felix Glass FAQ

A: AR coating, short for Anti-Reflection coating, is a widely used functional thin-film coating applied on optical glass surface, and it is one of Felix Glass’s core coating capabilities. The main function of AR coating is to reduce unwanted light reflection at air-glass interface, increase light transmittance and remove disturbing ghost reflection and glare.

When light passes from air into bare glass surface, part of light will be reflected back. This reflected light causes screen reflection, reduces image clarity and wastes light energy. AR coating stacks multiple layers of optical thin films to offset reflected light through light interference principle, minimizing surface reflectivity. For automotive and industrial display cover glass, AR coating greatly improves screen readability under strong sunlight. Without AR coating, bright outdoor environment will create heavy mirror reflection on display surface and make screen content hard to read. With proper AR coating, the display keeps clear view even under direct sunlight.

For optical windows and optical lenses, AR coating raises total light throughput of the optical system, reduces light loss and improves signal strength for optical sensors. AR coating can be customized for different target wavelength bands, covering visible light band for display screens, near-infrared band for optical sensing or UV band for ultraviolet optical instruments.

Combined with AF anti-fingerprint overcoat, AR coated glass can achieve both high optical transmittance and easy-clean surface. Our AR coating has strong adhesion, good scratch resistance and stable performance under temperature cycling and outdoor aging environment. AR coated tempered glass cover is widely used in automotive dashboard displays, industrial HMI touch monitors, outdoor smart screens, medical optical windows and various precision optical components.