Standard BK7 Uncoated Prism – 25 mm × 25 mm × 20 mm

The Standard BK7 uncoated prism from XXL Optics delivers reliable refractive precision for laboratory, educational and imaging applications requiring stable beam deviation without unnecessary surface treatment. Manufactured from high-purity BK7, it offers excellent transparency in the visible spectrum, high homogeneity and minimal inclusions, providing dependable optical behavior for both experimental setups and integrated devices.

Produced through advanced cold-processing, polishing and inspection systems, this prism maintains tight dimensional accuracy and low surface distortion. Its uncoated surfaces preserve the intrinsic refractive index of BK7, making it suitable for environments where controlled internal reflections are preferred or where users plan to apply custom coatings later. The precision of XXL Optics' optical fabrication ensures consistent performance and repeatable alignment results.

This model belongs to the BK7 prism series and is delivered in the factory-set uncoated 25 × 25 × 20 mm configuration. Additional factory variants are listed separately below. Compatible accessories include protective storage cases, alignment modules and optical mounts, all offered independently for system-integrated flexibility.