INJECTION DEVICE OF PLASTIC RAW MATERIAL, INJECTION METHOD OF PLASTIC RAW MATERIAL AND PLASTIC LENS

摘要

PROBLEM TO BE SOLVED: To stably and well inject even a plastic raw material having high viscosity using a roller pump.;SOLUTION: The plastic raw material, to be injected in a plastic lens molding cast die 8 by the roller pump 4, is fed while bringing the inside of a raw material tank 1 to a pressurized state by a pressure device 2.;COPYRIGHT: (C)2007,JPO&INPIT