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Spherical
Lens |
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Standard Product |
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Material |
BK7 / K9 / Fused Silica |
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Design Wavelength |
261-3000nm |
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Paraxial Focal Length |
±2% |
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Centration |
3 arc minutes |
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Clear Aperture |
>80% |
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Bevel |
0.25 mm x 45° |
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Surface Quality |
20-10/ 40-20/ 60-40 |
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Surface Figure |
l/4@632.8nm |
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Lenses
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Property and
Application |
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Plano-Convex
Lens |
Positive
focus length. Suitable when one conjugate is more than five
times the other. Also where both conjugates are on the same side of
the lens. It
is widely used for emitter, detector and laser. |
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Double-Convex Lens |
Double-Convex lens are
comprised of two convex spherical. Positive focus length. It is
widely used for projection system, imaging system and laser
measurement system. |
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Double-Concave Lens |
Negative
lens with the form suited to producing diverging light or a
virtual image, where the input light is converging.
It is widely used for laser expanding system. |
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Plano-Concave
Lens |
Negative
lens with the form suitable where one conjugates is more than
five times the other, e.g. producing divergent light from a
collimated input beam.
It is widely used for projection system, imaging
system and laser measurement system. |
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 Material:K9,
fused
silica |
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CNI can
offer different kinds of notch filters upon
your requests.
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