An objective lens for use in an optical pickup apparatus for conducting recording and/or reproducing information for an optical information recording medium, has a lens section shaped in an approximate circle and including a flange section; and a projecting section integrally provided to the lens section....http://www.google.fr/patents/US7012767?utm_source=gb-gplus-shareBrevet US7012767 - Optical pickup lens, molded optical component, handling method, and mold for optical component
Optical pickup lens, molded optical component, handling method, and mold for ...
