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Optical bi-convex lens,bk7 glass,AR Coated,2mm,5mm,8mm,18mm,20mm

Basic Info

Model No.: SPL

Product Description

 Optical Glass Bi convex lens

Bi-convex lens is manufactured with an identical convex surface on both sides of the lens

Bi-convex lenses have positive focal lengths and form both real and virtual images.

 

 

Structure

                          Bi convex lens

Substrate Material

BK7/K9

Diameters Available          

                     2mm,5mm,8mm,18mm,20mm

Diameter Tolerance

+0.00/-0.10 mm

Surface Quality

40-20 Scratch-Dig(general) 10-5 to 80-50 is availble

Surface Flatness

1/20 lambda to 3lambda

Surface Irregularity
(Peak to Valley)

λ/4

Thickness tolerance

+0/-0.1mm

Focal length tolerance

+/-1%

Clear Aperture

>90% of Diameter

Chamfer

0.05-0.5mmx45degree,according to customer’s needs.

Centeration

3 arcmin

Coating

AR,Mgf2 is on request,R<0.25%

Visible wavelength,laser wavelength

 

 

Product Categories : Spherical Lens > Bi Convex Lenses

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