20mm Dia ZnSe Focus Lens for CO2 Laser Engraver/Cutter Cutting Machine FL 1.5/2/2.5/3/4/5

Specification Name ZnSe Focus LensMaterial ZnSeDiameter 20mmThinckness 2mmAnti Reflective Coating at 10 6 mSizeFocal Length 138 1mm 1 5 250 8mm 2 363 5mm 2 5 475mm 3 5100mm 4 6127mm 5Features ZnSe is used for optical windows lenses mirrors prisms and optical blanks plates disks sheets slabs particularly for infrared applications Zinc Selenide ZnSe is transparent in wide spectral range from yellow visible to far IR ZnSe material is a chemically inert non hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses high resistance to thermal shock and stability in virtually all environments easily machined To obtain superior transmittance ZnSe crystals are grown by Chemical Vapor Deposition process Zinc Selenide is polycrystalline material demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing Package Included 1 x 20mm Dia ZnSe Focus Lens