Double convex lens | Global Trade leader ecrobot

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Double convex lens

Posting date : Aug 11, 2017

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Free Member Scince Oct 27, 2014

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Double convex lens

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Gordon Zhang

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China [CN]

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Detailed Description

Double convex lens

Like Plano-convex lens, double convex lenses have positive focal lengths and form both real and virtual images. Symmetry is assured by finishing both surfaces with the same tool. Because of symmetry, aberrations including coma, distortion and lateral chromatic aberration almost exactly canceled at unit conjugate radio. Double convex lenses have shorter focal lengths than Plano-convex lenses of equal diameter and surface radius.

Capability

Material:	Optical glass, Fused silica, CaF2, Si, Ge, etc.
Diameter:	1-500mm
Diameter tolerance:	+0/-0.05mm
Clear aperture:	> 90% of diameter
Center thickness:
Thickness tolerance:	+/-0.05mm
Radius:	2 - 50000mm
Radius tolerance:	+/-0.1%
Centration:	30 arc seconds
Surface quality:	20-10 scratch and dig
Power:	0.5 fringe
Irregularity:	0.2 fringe
Coating:	with or without AR coating
Bevel:	Protective bevel

Capability is subject to the change of material used and dimension.