Product Name: IR Materials Optical Lenses Znse, CVD Znse Optical Lens Model NO.: D5~D300mm Coating: Ar Customized: Customized Certification: RoHS, ISO9001 Lenses Color: Clear Material: IR Materials Optical Lenses ( Znse/Zns/Si/Ge/CaF2/ Shape: Single-lens Transmittance: >95% Type: Convex Lens Usage: Optical Trademark: ICC Origin: Qinhuangdao China HS Code: 9001909090 Product Description Lenses specification:MaterialIR Materials( ZnSe/ZnS/Si/Ge/CaF2/GaAs)Design Wavelength480.0nm,546.1nm,643.8 nmDiameter Tolerance+0.0,-0.15 mmThicknessTolerance±0.2 mmParaxial Focal Length±2% (@)546.1 nmCentration<3 arc minutesClear Aperture>85%Surface Irregularityλ/4(@)632.8 nmSurface Quality60-40 scratch and digProtective Bevel0.25 mmx 45°The customized optics lensesis welcomed.CVD ZnSe (Zinc Selenide) optics is widely used in spectral range 0.6-16.0 microns as optical components in many infrared spectral devices, FLIR (Forward Looking Infrared) systems, thermal imaging equipment and medical systems. Due to low absorption of material the ZnSe optics is used for high-power CO2 lasers. The following infrared optical details are made of CVD ZnSe: different kinds of prisms, lenses, blanks and windows. All optical products are manufactured of the usual standard sizes and max sizes of CVD ZnSe details according to max available ingots - up to (250x500x20) mm.ZnSe optical windowsor plates have modification as plane parallel windows, wedges (wedged windows), protective windows and Brewster windows.ZnSe plane parallel windowsare widely used as transfer optics and substrates for a variety of applications, such as laser windows, mirrors, beamsplitters, plate polarizers, output couplers, dichroic filters and beam combiners.ZnSe wedges (wedged windows)are used as transfer beam splitting or beam deviation optics.ZnSe Brewster windowsare uncoated windows used as output window of CO2 laser chamber for selection of s- and p-polarization of laser radiation. In this case the window beam incident angle equals Brewster angle. Also it's possible another application of Brewster window, namely pair of Brewster windows can be used as Polarizer-Analyzer-Attenuator of transmitted radiation.ZnSe protective windows- uncoated or AR / AR coated windows designed to withstand the conditions in industrial operations.ZnSe Spherical lenses.It's possible different ZnSe lenses configuration. ZnSe spherical lenses are used in infrared beam delivery systems for collimating, focusing, imaging and matching.ZnSe spherical plano-convex lensesare used as the most inexpensive focusing transmitting optics (positive focal length). And for better focusing the lens convex surface should be turned to the incident parallel beam.ZnSemeniscus lenses(spherical convex- concave lenses) are used as the better focusing optical component, which have minimal spherical aberration and so minimal focal spot size for incident parallel beam, (in case R1>R2 - positive focal length, positive meniscus).ZnSe spherical biconvex lensesare used as focusing and imaging transmitting optics (positive focal length).ZnSe spherical plano-concave lensesare used as diverging transmitting optics (negative focal length), for example: for compact collimating system.ZnSe spherical biconcave lensesare used as diverging transmitting optics (negative focal length).ZnSe CVD cylindrical lensesare used for infrared applications including CO2 laser optics: usually -ZnSe cylindrical plano-convex lenses and ZnSe cylindrical plano-concave lenses.