Fused Silica Double-Sided Polished Round Stepped Window
Double-sided polished circular stepped windows are precision-machined from high-quality optical quartz glass (JGS1, JGS2, JGS3) and Corning 7980 fused silica. The unique stepped design features a concentric smaller-diameter step ground onto a larger-diameter substrate, creating an integral locating structure for accurate, flush-mount installation in optical systems.
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High-transparency soda-lime glass, all surfaces polished, window for sealing
The product is a high-transparency soda-lime glass sealing window manufactured from optical-grade soda-lime glass. All surfaces undergo precision polishing to deliver superior optical transmittance and exceptional surface finish. The window features a stepped dual-circle configuration, comprising a larger circle measuring 30–50mm in diameter with a thickness of 5–10mm, and a smaller concentric circle measuring 25–40mm in diameter with a thickness of 5–10mm. Both large circular surfaces are polished to a 60/40 scratch-dig surface quality per MIL-PRF-13830B. The parallelism between the two bottom surfaces is maintained within 0.05mm, with a completely scratch-free finish. Edges are chamfered at 0.1–0.2mm × 45° to minimize stress concentration. The stepped geometry enables reliable sealed integration into equipment housings or vacuum/pressure chambers, functioning simultaneously as an optical viewport and a sealing interface.
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Sapphire Step Glass Windows
Steps increase mechanical strength and reduce the risk of window deformation in high pressure or vibration environments. Suitable for high mechanical stress scenarios such as aerospace and on-board optical systems.
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