Optical Coating

Sapphire Black

 It is a coating technology that minimizes the reflection and penetration of ultraviolet and visible light to maximize the absorption rate of visible light wavelength (400~800nm).

Principle

 It is a vacuum thin film deposition technology that uses a vacuum thin film deposition machine to coat the thickness of high-refractive chemicals, low-refractive chemicals, and absorbers differently to reduce visible light penetration and increase absorption through interference phase distance.

Sapphire

Sapphire black coated glass

Effect

  • Improve product appearance design with deeper black than existing black
  • Advanced Camera Module Appearance
  • Avoid scattering of light

Applcable fields

  • Camera home keys
  • Touch Window Bezel
  • Battery Cover

Transmittance of Sapphire black coated glass