Patent ID: 9221222
Filing Date: 2015-12-29
Classification: B29C,B29D,G02B,Y10T

Abstract:
1. A double molding die, comprising: a first molding die for forming an optical element having an outer wall portion and an optical functional surface, the first molding die including a first fixed die and a first movable die which are moveable relative to one another to move the first molding die between open and closed positions, the first molding die defining a first cavity when the first molding die is in its closed position, the first fixed die having a first runner through which a first resin may be introduced into the first cavity to form the optical element; and a second molding die for forming a lens frame which surrounds and is integral with the outer wall portion of the optical element, the second molding die including a second fixed die and a second movable die which are moveable relative to one another to move the second molding die between open and closed positions such that when the optical element is located in the second molding die and the second molding die is in its closed position, the second molding die holds the optical element in place with a first space surrounding the outer wall portion and a second space surrounding, and out of contact with, the entire optical functional surface such that no portion of the optical functional surface touches any portion of the second molding die, the second fixed die including a second runner through which a second resin, which is different from the first resin, can be introduced into the first space to form the lens frame.