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Plano-concave Lenses Maximize

Plano-concave Lenses

Negative lens with the form most suitable where one conjugates is more than five times the other, e.g. producing divergent light from a collimated input beam.

More details

Materials:  Fused Silica

Specification for lenses (Cylindrical Lenses)

Material

 BK7 (Or Fused Silica)

Design Wavelength

 546.1nm (632.8 nm for Cylindrical lenses )

Design Index

 1.5183 ±0.0005 (1.5147 for Cylindrical lenses)

Flatness

 l/4@632.8nm (x

Diameter Tolerance

 +0.0, -0.15mm

Paraxial Focal Length

±2%

Center tolerance

 3 arc minutes

Clear Aperture

 >80%

Surface Quality

 60-40 scratch and dig

Bevel

 0.25 mm x 45°



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