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Right-Angle
Glass Prisms:
These prisms are made of glass of good quality. They have
fine ground triangular faces and slightly beveled edges.
They can serve as an efficient broadband reflector. If
the hypotenuse face is antireflection coated, reflective
efficiency is very high and is insensitive to orientation
about axes normal to the plane of the page. |
| Specifications |
| Material |
BK7 glass |
| Dimensions |
±0.1mm |
| Angle Tolerance |
≦3 arc min |
| Flatness |
≦λ |
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Right-Angle
Fused Silica Prisms
They are made from UV grade synthetic fused silica. They
combine the mounting and acoustic isolation advantage
of a prism with the excellent transmission of this material.
Because the index of synthetic fused silica is somewhat
lower than that of BK 7, the critical angle for TIR is
greater (thereby reducing the TIR field acceptance)
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| Specifications |
| Material |
UV grade fused silica |
| Wavelength Range |
200-2500nm |
| Dimensions |
±0.1mm |
| Angle Tolerance |
≦3 arc min |
| Flatness |
≦λ |
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