Product Description:
Sapphire is composed of alumina, and its crystal structure is
hexagonal lattice structure.
Synthetic sapphire common application facets are A-Plane,C-Plane,
and R-Plane. Due to the wide optical penetration band of sapphire,
it has good light transmission from near ultraviolet (190nm) to
mid-infrared. Therefore, it is widely used in optical components,
infrared devices, high-intensity laser lens materials.
Sapphire also has the characteristics of high sound velocity, high
temperature resistance, corrosion resistance, high hardness, high
light transmittance, high melting point (2045℃), etc., so it is
often used as a material for photoelectric components.
Properties of Single Crystal Sapphire:
Chemical formula | Al₂O₃ |
Purity | 99.999% |
Crystal structure | Hexagonal |
Density | 3.98g/cm³ |
Hardness Mohs | 9 |
Fusion point | 2045℃ |
Boiling point | 2980℃ |
Coefficient of Thermal Expansion | 5.8×10 -6 /K |
Specific heat | 0.418W.s/g/k |
Thermal conduction | 25.12W/m/k(@100°C) |
Refractive index | no=1.768 ne=1.760 |
dn/dt | 13×10-6/K(@633nm) |
Transmission | T≈80%(0.3-5μm) |
Permittivity | 11.5(//c), 9.3(⊥c) |
The pictures of the Sapphire optical rod lens:
Product Paramenters:
Product name | Optical Sapphire Glass Rods Lenses |
Material | Sapphire(Al₂O₃) |
Hardness | Mohs 9 |
Diameter | 0.1-100 mm |
Diameter Tolerance | 0/-0.03 mm |
Length | 0.5-300 mm |
Length Tolerance | 0/-0.03 mm |
Surface quality | 60/40 |
Application | Medical Endoscope Lens/Optical Equipment |
Applications:
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