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Penta Prisms | |
Standard Penta Prisms | |
High Precision Penta Prisms | |
Nonstandard Penta Prisms | |
Penta
Prisms change the direction of an incident beam by 90 without inverting
or reversing it; they are insensitive to angle of incidence and alignment. In order to be effective, two faces of the prism must have a reflective coating; we coat our prisms with a metallic or dielectric coating. The standard Penta Prism reflecting surfaces are coated with aluminum or enhanced aluminum. Sometimes, reflecting coating surfaces are with black painting, and we coat the entrance and exit faces with an anti-reflection coating from 630 to 680nm. |
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