Perkins Precision Developments (PPD) manufactures custom, high-precision prisms and prism assemblies of all shapes and sizes and in a variety of materials including fused silica, BK7, CaF2, SF11 and ...
Right angle prisms are simply triangular blocks of glass with two 45° & one 90° angles. The precision grade right angle prisms have high surface quality and tight tolerance angles. The normal use for ...
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