METHOD FOR AUTOMATICALLY INJECTING MONOMER FOR OPTICAL MATERIAL INTO MOLD

摘要

In the present invention, sealing tape is wrapped around the outer circumferential surface of an introduced mold, and a monomer solution is injected into a cavity formed therein, wherein the injection amount of the monomer solution can be precisely controlled by using a vision recognition system. According to a preferable embodiment, a monomer solution (S) of a monomer solution tank (10) is suctioned, in advance, into a syringe (20) capable of adjusting a capacity corresponding to a cavity of a mold (M); most of the monomer solution (S), which has been injected into the syringe (20), is firstly injected into the mold (M) at a high injection flow rate or injection speed; while the residual amount of the monomer solution (S) is secondly injected at a reduced injection flow rate or injection speed, it is finally confirmed, by using a vision recognition system, whether the monomer solution (S) is filled in the mold (M); and then injection is finished.