Sapphire Crystal
Single crystal sapphire possesses a unique combination of excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains its high strength at high temperatures, has good thermal properties and excellent transparency.
It is chemically resistant to common acids and alkali at temperatures up to 1000 °C as well as to HF below 300 °C. These properties encourage its wide use in hostile environments where optical transmission in the range from the visible to the near infrared is required.
Lambda provide Maximum available size for windows, lenses and blanks: 100 mm Dia x 10 mm Thk and 100 mm Square x 10 mm Thk.

1) Sapphire Windows

Specifications:
Material: ..............Optical Grade Sapphire(Random)
S/D: .......................................................60-40
Flatness:...........................................<Lambda/4
Chamfer: ....................................0.25x45 degree
Parallelism: ..................................................<1'
Chips: ..................................................<0.2mm
Coating: ......................................custom design

Note: Other sizes and specifications are available upon request.