Fused Silica(UVFS) Plano-Convex Lenses
Fused silica is the amorphous (glassy) state of silicon oxide (quartz, silica). It is a typical glass with a long-range disordered atomic structure. It provides its high service temperature and low coefficient of thermal expansion by cross-linking its three-dimensional structure
Fused silica plano convex lens is convex on one side and flat on the other and has a positive focal length, it been widely applied for laser systems and infrared systems.
Nova can provide fused silica plano-convex Lenses with diameters from 2-300mm and thicknesses from 0.12-60mm (accuracy up to 20-10, 1/10L@633nm),coating AR, BBAR, AF or upon request.
Technical parameters of fused silica Plano-Convex Lens
Diameter | 2-300mm |
Focal length | 15-5000mm |
Thicknesses | 0.12-60mm |
Dimension tolerance | +0/-0.1mm |
Thickness tolerance | ±0.1mm |
Surface quality (scratch & dig) | 60-40, 40-20, or better |
Surface accuracy | λ/2, λ/4 or better |
Parallelism | 3' ,30'' |
Bevel | 0.1~0.3mm x 45 degree |
Clear aperture | >85%,>90% |
Coating | AR coating or cutom |
Material properties of fused silica
Optical Properties | |
Transmission Range | 0.18-2.1μm |
Refractive index@0.5876μm | 1.4585 |
Physical Properties | |
Density[g/cm3] | 2.21 |
Melting Point[deg C] | 1900 |
ThermalConductivity[W/(m×deg C)] | 1.35 |
Thermal Expansion [deg C-1 ] | 4.0*10-6 |
Specific Heat Capacity[J/(Kg*deg C ] | 0.728*10-3 |
Young's Modulus[GPa] | 7.36 |
Shear Modulus[GPa] | 3.14 |
Poisson Coefficient | 0.17 |
Chemical Properties | |
Solubility | Insoluble |
Transmission curve
Fused silica is commonly used in applications ranging from ultraviolet (UV) to near-infrared (NIR), and its high transmittance, good heat resistance, and excellent environmental durability make it suitable for use in laser equipment, emission and detection protection equipment, and imaging systems in the ultraviolet spectrum.
