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| Penta- Prisms |
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There are two important properties in penta-prisms. The first
one is that the image is neither inverted nor reversed as it
is deviated by 90 degrees. Secondly, the penta-prism is a constant
deviation prism, meaning that the same exact 90-degree deviation
applies to all rays transmitted by the useful aperture,regardless
of the angles between these rays and the optical axis. They
are often used in range finding, surveying, alignment and cinephotography.
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Specifications |
Material |
BK7 glass |
Beam Deviation |
90 deg ±5 sec |
Dimensions |
+0/-0.1mm |
Surface Quality |
60/40 |
Surface Flatness |
λ/4 |
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