Precision Optics Corporation can custom manufacture prisms with tolerances to .01mm, <10/5 scratch/dig, λ/20 flatness, <5 arc second parallelism, +/- 0.1mm; 0.2mm to 150 mm diameter, and +/- 0.02mm (and as thin as 0.2mm) thickness.
Types of custom prisms Precision Optics Corporation can manufacture include:
Right angle prisms
Beamsplitter cube assemblies
Reflecting (internal/external) prisms
Contact POC for more information or to discuss your custom prism needs.