Optical Windows
Fused Silica · Sapphire · Optical Glass, processing diameter Ø1–Ø600mm
Multi-material, multi-specification high-precision optical window processing, supporting custom coating services including AR, HR, and partial reflection coatings. Standard and high-precision grades available for different application requirements.
Fused Silica Windows
JGS1 / JGS2 / JGS3 · Corning 7980 · OHARA SK-1300
Fused silica is one of the most widely used optical substrate materials, offering a broad transmission band (UV to infrared), ultra-low thermal expansion coefficient (CTE 0.55×10⁻⁶/°C), and high chemical stability. JiuHongKe provides multiple grades of fused silica windows with custom sizing and coating services.
Sapphire Windows
Single Crystal Sapphire Optical Windows
Single crystal sapphire is the second hardest natural material after diamond (Mohs hardness 9), featuring extreme mechanical strength, broad transmission (UV to mid-infrared: 200nm–5500nm), excellent thermal stability, and chemical resistance. Widely used as optical protection windows in harsh environments.
Optical Glass Windows
H-K9L (N-BK7 equiv.) / Optical Borosilicate Glass
H-K9L optical glass is the Chinese domestic equivalent of Schott N-BK7 — a premium borosilicate glass with excellent optical homogeneity and machinability. It offers outstanding cost-performance for visible and near-infrared applications. Ideal when UV performance is not required.