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Sapphire Circular Window

optical color sapphire crystal
April 30, 2025
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ZMSH manufacture precision sapphire circular windows (5-300mm diameter, 0.3-20mm thick) with >85% transmittance (250-5500nm) and Mohs 9 hardness for demanding optical applications. Our comprehensive capabilities include custom AR coatings (R<0.5% per surface), precision edge treatments (beveled/safety edges), and metrology-grade surface finishes (up to λ/10 flatness). Utilizing advanced CNC machining and laser processing technologies, we achieve tight tolerances of ±0.01mm while maintaining excellent thermal stability (CTE 5.3×10⁻⁶/℃) and chemical resistance. We serve laser systems, semiconductor equipment and aerospace instrumentation markets with reliable 2-4 week lead times for custom solutions. Additional services include multi-aperture drilling, laser marking, and cleanroom packaging upon request.



Sapphire Circular Window Optical Glass Customizable Sapphire glass Sapphire wafer
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