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  • Penta Prism

Penta Prism

Penta prism has five sides, four of them polished. Two reflective sides are coated with metal or dielectric HR coating and these two sides can be blackened. The deviation angle of 90 degrees will not be changed if the penta prism is slightly adjusted. The reflecting surfaces of this prism must be coated with a metallic or dielectric reflective coating.

 

It is widely used in in camera viewfinder, image observation system or measuring instrument. You are welcome to contact us for customized this product!

Parameters

Beam Deflection Angle±3′
MaterialH-K9L/UV Fused Silica
Diameter Tolerance0/-0.1
Surface Flatnessλ /5
Scratch/Dig60/40
Clear Aperture>90%
Bevelling0.2±45°
CoatingAR OR BBAR
LacquerGT-7 or equivalent


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