Glass: High grade N-BK7, UV grade fused silica glass (UVFS), N-SF11, or N-SF57
Crystal: quartz, CaF2, ZnSe, Ge, Si or Al2O3(sapphire) crystal
Other glass or crystalline materials are available upon request.
Incident beam deviated by 90o or 180o
Widely used in telescopes, periscopes, optical delay systems.
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Right-Angle Prism Specifications:
Dimension Tolerance:+0.0, -0.2mm
Flatness: λ/6 at 632.8 nm for N-BK7, N-SF11, N-SF57, UVFS, and quartz crystal
λ/2 at 632.8 nm for ZnSe, Ge, Si, CaF2, and Al2O3.
Surface Quality: 20-10 scratch and dig for N-BK7, N-SF11, UVFS, quartz crystal
60-40 scratch and dig for for ZnSe, Ge, Si, CaF2, and Al2O3.
Clear Aperture: > 80%
Bevel: < 0.5 mm x 45o
Angular deviation tolerance: < 3'
Coatings: HR coating with R > 99.5% on the reflection surface;
AR coating with R < 0.2% on the specified surface(s) available upon request.
N-SF** glass, the RoHS version of standard SF** glass may be used for the prisms without notice. THe RoHS version will always be used for EU customers in compliance with the RoHS regulations.
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