Metalized sapphire windows are created by applying thin layers of chrome, nickel and gold around the edge of a sapphire window. This metalized edge creates a surface that can be soldered or bonded directly into your opto-mechanical assembly allowing you to create a hermetic seal. Hermetically sealed optics is used in a variety of applications ranging from infrared imaging systems to medical devices.

Material: optical sapphire，Quartz substrate，Laser crystal（LBO，YvO4，YAG）
Diameter tolerance: +0, -0.1mm
Thickness tolerance: +/-0.05mm
Clear aperture: 90%
Surface quality: 60-40 scratches and digs
Surface accuracy: 2 lambdas per 25.4mm @ 632.8nm
Parallelism: < 3 minutes
Coating band range: 400- 25000nm，AR coating and   IR  coating  （Ion Assisted Coating）
Metalizing: Chrome, Titanium，Nickel, and Gold，Platinum; Magnetron sputtering  method