JGS1( Extreme UV optical quartz glass)It is a high-purity optical quartz glass made by oxyhydrogen flame melting. Its satisfactory UV light transmission performance surpass all the other glass types in particular in the shortwave UV zone and can achieve a 90% transmission rate at the wavelength of 185nm. Hence it is an ideal choice for applications in the wavelength range of 185-2500nm.

Optical Specification | ||
Dimension Tolerance | +0/-0.1mm | |
Thickness Tolerance | ±0.1mm | |
Surface Accuracy | λ/4 | |
Surface Quality | 40-20 | |
Parallelism | <1 arc min | |
Clear Aperture | >90% | |
Bevelling | <0.2×45° | |
Coating | Customers Design |
Quartz glass characteristics
Mechanical Property | Reference Value | Mechanical Property | Reference Value | |
Density | 2.2g/cm3 | Deformation Point | 1280℃ | |
Compressive Strength | 1100Mpa | Softening Point | 1780℃ | |
Bending Strength | 67Mpa | Annealing Point | 1250℃ | |
Tensile Strength | 48Mpa | Specific Heat(20~350℃) | 670J/kg.℃ | |
Poisson's Ratio | 0.14~0.17 | Thermal Conductivity(20℃) | 1.4W/m.℃ | |
Elastic Modulus | 72000Mpa | Refractive Index | 1.4585 | |
Shearing Modulus | 31000Mpa | Coefficient of thermal expansion | 5.5×10-7cm/cm.℃ | |
Mohs Hardness | 5.5~6.5 | Hot work temperature | 1750~2050℃ | |
The temperature for a short time | 1300℃ | |||
The temperature for a long time | 1100℃ |



JGS2 (UV optical quartz glass)It is an optical quartz glass made by oxyhydrogen flame melting and is suggested for applications in the wavelength range of 220-2500nm.


JGS3 (Infrared quartz glass)
It has a good performance of infrared light transmission with a transmittance of over 85%. It is recommended for applications in the wavelength range of 260-3500nm.















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