Borosilicate (Pyrex) Windows
Borosilicate (Pyrex) windows are made from high-quality borosilicate glass, offering low thermal expansion, high temperature resistance and excellent chemical durability. Their thermal stability is comparable to that of silicon materials, making them ideal for high-temperature and precision optical applications. They have broadband transmittance from ultraviolet to near-infrared and can withstand continuous operation at 450℃ and rapid thermal shock. They are resistant to acids, alkalis and organic solvents, and are widely used in semiconductor lithography, medical equipment, laser protection, vacuum systems and optical instruments. We offer customizable sizes, shapes and coatings to meet various industrial needs.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Typical Diameter | 8.0 mm、10.0 mm、12.7 mm、15.0 mm、20.0 mm、25.4 mm、30.0 mm |
| Typical Thickness | 1.0~50.0 mm |
| Diameter Tolerance | +0.0/-0.1 mm |
| Thickness Tolerance [Standard Type] | ±0.2 (Standard Type) |
| Thickness Tolerance [High-Precision Type] | ±0.005 (High-Precision Type) |
| Clear Aperture [Small Size] | >80 % (small size) |
| Clear Aperture [Large Size] | >95 % (large size) |
| Parallelism [Standard] | 3 ′ (standard) |
| Parallelism [High Precision] | 3 ″ (high precision) |
| Surface Figure [Standard] | λ/2 (standard) |
| Surface Figure [High Precision] | λ/10 (high precision) |
| Surface Quality [General-purpose] | 60/40 (general) |
| Surface Quality [High Precision] | 10/5 (High-Precision) |
| Chamfer [45°] | <0.25x45 ° |
| Coating | Uncoated, AR, HR, PR, coating, etc. |
Datasheet
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