Melles Griot 02 WBK 326 Optical Window

📏 Product Specifications

• Manufacturer / Model: CVI Melles Griot, part number 02 WBK 326

• Material: Optical-grade N‑BK7 borosilicate crown glass—highly uniform, excellent visible and near‑IR transmission, low inclusions, high durability

• Diameter: approximately 50 mm (4 cm)

• Thickness: 10 mm as standard for that size series 

• Surface flatness: λ/10 transmitted wavefront error—that is, an optical flatness of tenth‑wave at 633 nm

• Surface parallelism: typically better than a few arcminutes (often ≤5 arc min)

• Surface quality (scratch‑dig): often in the range 20‑10 or 40‑20 depending on batch/grade—typical laser‑grade quality