MATERIAL FOR MOLDING OPTICAL ELEMENT AND METHOD OF MOLDING OPTICAL ELEMENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To make a material for an optical element into a shape capable of making non-optical function part as small as possible by relatively reducing chamfering amount of a part to be predicted to cause filling deficiency when molded and determining the chamfering amount adjusted to each part, and also provide a method of forming an optical element having high precision by using the same. SOLUTION: The material for the optical element used in the method of molding and processing the material for the optical element by heating and softening it and pressing it using an upper die and a lower die. The material for the optical element before molded possesses a partial variation set by the result obtained from simulation in advance so that chamfering amount of the ridge part (shape) might obtain a required glass filling degree in a cavity in the molding die when the material for the optical element is formed.