The 2-Minute Rule for optical germanium lens
Notice: Undefined variable: error_enquiry in /www/wwwroot/shalomeo.com/catalog/view/concept/shalomtpl2/template/merchandise/item.tpl on line 133Our spherical plano-concave germanium lenses are mostly accustomed to diverge a beam from the collimated gentle source, or to raise the focal length of an optical system.Germanium is additionally subject ma