As a supplier of sapphire lenses, we can customize optical windows with high cost-effectiveness, including various materials and sizes.

sapphire:

Sapphire is a hard oxide crystal and the basic single crystal form of alumina. It has a series of excellent physical and chemical properties such as high strength, high hardness, high temperature resistance, wear resistance, corrosion resistance, good light transmission performance, and excellent electrical insulation performance. Therefore, it can be widely used in high demand fields such as scientific research and civil industry.

The main characteristics and applications of sapphire lenses are as follows:

Wear resistant, high hardness, corrosion-resistant, and low friction coefficient, it is an ideal material for precision instrument mechanical bearings;

High strength, corrosion resistance, high thermal conductivity, high light transmittance, and wide light transmission band (from near ultraviolet to 7um mid infrared band) are ideal window materials and optical component materials;

Excellent electrical insulation, hexagonal symmetrical structure, stable chemical properties, making it an excellent substrate for semiconductors and superconductors (with small leakage capacitance and parasitic capacitance);

Basic characteristics of sapphire:

Lattice structure hexagonal crystal system

Melting point 2045 ℃

Density 3.98 grams per cubic centimeter

Mohs hardness 9

Thermal expansion coefficient 5.8 × 10-6/K

Specific heat 0.418Ws/g/k

Thermal conductivity 25.12W/m/k (@ 100 ℃)

Refractive index no=1.768ne=1.760

DN/DT13×10-6/K(@633nm)

Transmittance characteristic T ≈ 80% (0.3~5 μ m)

Dielectric constant 11.5 (∥ c), 9.3 (⊥ c)