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  • Penta Prisms
  • Penta Prisms

Penta Prisms

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Material N-BK7 Range of Size /
Dimension Tolerance ±0.2mm Surface Quality 60/40 S/D
Clear Aperture >90% Flatness <λ/4@632.8nm
Angle Tolerance <30arc seconds Chamfer Protective<0.5mmx45°

Protected Aluminum reflective coating

Single Layer MgF2 AR coating at visible

Penta prisms can deviate the angle of incident beam or image to exact 90°without any inverting and reversing, whether the angle of incoming beam is. This kind of prisms is widely used in optical observation system and measuring applications.