Plano-convex Znse Lens

Plano-Convex ZnSe Lens has one flat surface and one convex surface and is made with laser grade zinc selenide with computer optimized anti-reflection coatings. We control the quality of the optic from material, through fabrication and coating to ensure you receive the highest quality optic in the market.
This wide range of Co2 plano-convex lenses have been prepared to fit most OEM, Industrial and Medical laser systems. They are ideally suited for laser heat treating, welding and cutting. All have been manufactured to high-quality laser specifications for high-power applications.

Specifications :
Material : ZnSe Laser Grade C.V.D. type
Diameter Tolerances : +.000", -.005"
Thickness Tolerances : A .010"
Surface Figure : < I /40 wavelength @ 10.6Aum
ETV < .0015"
Focal Length Tolerance A 1.0%
Surface Quality < 20/10 scratch-dig Laser Finish
Spectral Performance
Standard AR Coating type Both Sides @ 10.6Aum (AR)
AbsorptionA < 0.20 % total
ReflectanceA < 0.20% per surface @ 10.6Aum
TransmittanceA > 99.4% typical

Ultra Low Absorption AR Coating type Both Sides @ 10.6Aum (ULA)
AbsorptionA < 0.13 % total
ReflectanceA < 0.25% per surface
TransmittanceA > 99.4% typical

Dual Band AR Coating type Both Sides @ 10.6Aum and .633Aum (DBAR)
AbsorptionA < 0.20 % total
ReflectanceA < 0.25% per surface @ 10.6Aum
Transmittance > 99.3% @ 10.6Aum with > 90% @ .633Aum