Optical glass Plano-Concave Lenses
Optical glass used in a variety of visible and short-wave infrared applications, and its advantages over other similar glasses are mainly reflected in the following aspects: high performance, low cost, good material consistency, high homogeneity of refractive index, low stress birefringence, low bubbles and streakiness.
Optical glass plano-concave lens is composed of a flat surface and a concave spherical surface, which can produce negative spherical aberration and is often used in systems where the light is expanded or the focal length is increased to balance the deviation of other lenses.It’s been widely applied for visible and short-wave infrared applications, such as optical systems for beam expansion, image formation, beam collimation, focus collimation, beam collimation point source, and other applications
Our Company can provide optical glass plano-concave 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 optical glass Plano-Concave Lenses
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 optical glass
Optical Properties | |
Transmission Range | 0.35-2μm |
Refractive index | 1.5168@587.5618nm |
3×10-2@10.6μm | |
Reflection loss | 8.1%@587.5618nm(两面) |
Physical Properties | |
Density[g/cm3] | 2.51 |
Melting Point[℃] | 559 |
Thermal Conductivity[W/(m•deg C)] | 1.114 |
Thermal Expansion[deg C-1for -30/+70 degC] | 7.1*10-6 |
Specific Heat Capacity[J/(kg•deg C)] | 0.858*103 |
Young's Modulus(E)[GPa] | 82 |
Bulk modulus(K)[GPa] | 34 |
Poisson Coefficient | 0.206 |
Chemical Properties | |
Solubility / g/L | None |
Transmission curve
Optical glass is widely used in a variety of visible and short-wave infrared applications.
Typical size of optical glass Plano-Concave Lenses
Part No | Dia（mm) | FL (mm) | CT (mm) | ET (mm) | Wavelength (um) | Radius(mm) | Surface quality |
NOVAOGPCA-1 | 12.7 | F-25 | 3 | 4.7 | 0.5876 | -12.9 | 40-20 |
NOVAOGPCA-2 | 12.7 | F-50 | 2.7 | 3.5 | 0.546 | -25.9 | 40-20 |
NOVAOGPCA-3 | 12.7 | F-60 | 2.4 | 3.1 | 0.546 | -31.1 | 40-20 |
NOVAOGPCA-4 | 12.7 | F-75 | 2.9 | 3.4 | 0.546 | -38.9 | 40-20 |
NOVAOGPCA-5 | 12.7 | F-100 | 3 | 3.4 | 0.546 | -51.9 | 40-20 |
NOVAOGPCA-6 | 12.7 | F-125 | 3.1 | 3.4 | 0.546 | -64.8 | 40-20 |
NOVAOGPCB-1 | 25.4 | F-50 | 2.8 | 6 | 0.546 | -25.9 | 40-20 |
NOVAOGPCB-2 | 25.4 | F-75 | 2.9 | 4.9 | 0.546 | -38.9 | 40-20 |
NOVAOGPCB-3 | 25.4 | F-100 | 3.1 | 4.6 | 0.546 | -51.9 | 40-20 |
NOVAOGPCB-4 | 25.4 | F-125 | 3 | 4.2 | 0.546 | -64.8 | 40-20 |
NOVAOGPCB-5 | 25.4 | F-150 | 2.7 | 3.7 | 0.546 | -77.8 | 40-20 |
NOVAOGPCB-6 | 25.4 | F-200 | 3 | 3.8 | 0.546 | -103.7 | 40-20 |
NOVAOGPCB-7 | 25.4 | F-250 | 3.1 | 3.7 | 0.546 | -129.7 | 40-20 |
NOVAOGPCB-8 | 25.4 | F-500 | 3.7 | 4 | 0.546 | -259.4 | 40-20 |
NOVAOGPCB-9 | 25.4 | F-650 | 3.7 | 3.9 | 0.546 | -337.2 | 40-20 |
NOVAOGPCB-10 | 25.4 | F-750 | 3.8 | 4 | 0.546 | -389 | 40-20 |
NOVAOGPCC-1 | 38.1 | F-100 | 2 | 5.5 | 0.546 | -51.9 | 40-20 |
NOVAOGPCC-2 | 38.1 | F-150 | 3.3 | 5.6 | 0.546 | -77.8 | 40-20 |
NOVAOGPCC-3 | 38.1 | F-200 | 4.1 | 5.8 | 0.546 | -103.7 | 40-20 |
NOVAOGPCC-4 | 38.1 | F-300 | 4.7 | 5.8 | 0.546 | -155.6 | 40-20 |
NOVAOGPCD-1 | 50.8 | F-75 | 3 | 12 | 0.546 | -38.9 | 40-20 |
NOVAOGPCD-2 | 50.8 | F-100 | 3.5 | 10 | 0.546 | -51.9 | 40-20 |
NOVAOGPCD-3 | 50.8 | F-250 | 5 | 7.5 | 0.546 | -129.7 | 40-20 |
