Sapphire and Ruby materials are extremely hard with hardness
of 2300 HV and compression strength of 2100 MPa. Basic
structure of Sapphire & Ruby comprises of Al2O3.
These materials have high thermal conductivity of 40W/m*K┴
at 300K. These materials are capable of achieving high level
of polish. Sapphire has high refractive index of 1.76 nD.
Melting temperature for both materials is 2050oC.
Spinel material possesses hardness of 1250 HV.
Its basic structure is MgO3.5
Al2O3. Spinel has high refractive
index of 1.727 nD and fusion temperature of 2000oC.
Density of Spinel material is 3.61 g/cm3.
Cubic Zirconia
The basic structure of Cubic
Zirconia is ZrO2 + CaO. Cubic Zirconia possesses high
refractive index of 2.177 nD and hardness of 1250 HV.
Its fusion temperature is 2700oC. Density of Cubic
Zirconia is 5.65 g/cm3.
Ceramics
We use two types of Ceramic
material: Al2O3 and ZrO2. Their
densities are 3.90 g/cm3 and 6.00 g/cm3
respectively. Hardness of Al2O3 is 1900
HV and that of ZrO2 is 1200 HV. Fusion temperature of
Aluminia ceramic is 1500oC and Zirconia ceramic is
1000oC.
Optical Glass
Selection of optical glasses is
done on the basis of refractive index and ABBE value of the
material, which is the identifying feature for optical glasses.
We use a variety of optical
glasses from renowned manufacturers like Schott and Ohara.
We use only RoHS compliant raw materials
from world renowned suppliers who deliver consistent and
reliable quality for our most severe needs. Raw materials of
only European origin are used in our manufacturing.
