Products
Material: Soda-lime glass
Large circle diameter: 30–50 ±0.1 mm
Large circle thickness: 5–10 mm
Small circle diameter: 25–40 mm
Small circle thickness: 5–10 mm
Parallelism between the two bottom surfaces: <0.05, scratch-free
Polishing of both large circular surfaces: 60/40
Chamfer: 0.1-0.2mm*45°
Problems Solved
Sealing Integration – The stepped dual-diameter design allows the smaller circle to seat precisely into the housing aperture, while the larger circle provides a mating surface for O-rings or gaskets, facilitating airtight or watertight mounting with minimal sealing hardware.
Optical Visibility – The high-transparency soda-lime glass, combined with full-surface polishing and 60/40 surface quality, ensures clear, low-scatter transmission across the visible spectrum, enabling uninterrupted visual monitoring of internal chamber or equipment conditions.
Parallax & Optical Deviation – The bottom-surface parallelism better than 0.05mm guarantees that the installed window remains optically neutral, eliminating parallax errors or beam deflection that could compromise imaging accuracy or measurement precision.
Edge Stress & Mechanical Reliability – The 0.1–0.2mm × 45° chamfer effectively alleviates stress concentration at sharp edges, substantially reducing the risk of edge chipping, cracking, or fracture during handling, installation, and operational thermal cycling.
Surface Defect Interference – The scratch-free finish and 60/40 surface quality minimize stray light and scattering artifacts caused by surface imperfections, making the window particularly suitable for optical inspection systems, microscopy, and other high-precision imaging applications where surface integrity is critical.
K9 Glass Stepped Windows – Custom Machined, Double-Sided Polished
K9 Stepped Windows are built upon standard K9 glass window substrates by adding one or more stepped ring structures, enabling them to simultaneously meet the dual requirements of optical protection and precision mechanical assembly.
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.
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.
Stepped windows are used in a wide variety of applications where spectral isolation is required.
