Injection valve, especially for a mould for an optical lens

摘要

An injection valve includes an injection channel ( 17 ) that opens outwards via an outlet ( 18 ) and has a specific inlet for the arrival of the molding material ( 19 A) remote from the outlet ( 18 ), in addition to a slider unit ( 20 ) that is moveably mounted in the injection channel ( 17 ) and controls the outlet thereof ( 18 ). The injection channel ( 17 ) has a specific outlet ( 19 B) for discharging the molding material. The invention can be used to mold an optical lens made from a polymerizable synthetic material.