optical germanium lens Fundamentals Explained
Recognize: Undefined variable: error_enquiry in /www/wwwroot/shalomeo.com/catalog/perspective/theme/shalomtpl2/template/product or service/item.tpl on line 133Our spherical plano-concave germanium lenses are primarily used to diverge a beam from a collimated light resource, or to increase the focal length of the optical procedure.Everything above 1