Optical Products
Laser Products

Double-convex

Lenses have many application ranging from the simple collection of the scaning of laser beams to precise imaging and image transfer. Lenses are classified as single lenses, cylindrical lenses and achromatic lenses according to the different applications. Polar Beam Technologies Inc. provides these lenses with the material of BK7, fused silica, sapphire and CaF2. Special focusing systems are able to be designed by engineers upon request.

Material BK7 grade A Fused silica UV grade Sapphire optical grade CaF2 optical grade
Design wavelength 546.1nm 546.1nm    
Design index 1.5183+/-0.0005 1.46008+/-0.00005    
Diameter tolerance +0.0, -0.15mm +0.0, -0.15mm    
Paraxial focal length +/-2% +/-2%    
Centration 3 arc minutes 3 arc minutes    
Clear aperture >80% >80%    
Surface figure l/4@632.8nm l/4@632.8nm    
Surface quality 60-40 60-40    
Protective bevel option option    
Contact Us
Sales Office in Shanghai
Tel: 86-21-58325141      Fax: 86-21-58329412
E-mail: sales@polarbeam.com

Copyright 2000 - 2005 Polar Beam Technologies Inc., All Rights Reserved.
5106 Merano Court, Pleasanton, CA 94588, USA
Tel: (925) 225-9725, Fax: (925) 225-9043