Patent ID: 7957081
Filing Date: 2011-06-07
Classification: G02B

Abstract:
1. An optical glass lens set comprising at least one optical glass lens, at least one opening ring and a lens holder; wherein the optical glass lens is made of optical glass and having at least one optical surface and an outer periphery of a non-optical surface around the optical surface; the opening ring is attached on the outer periphery of the optical glass lens; the lens holder is formed around and covering on the outer periphery of the optical glass lens by injection molding while an opening for imaging light to pass through is formed on a center area of the lens holder, corresponding to the optical surface of the optical glass lens; wherein the optical glass lens set is formed by the steps of: providing an injection mold for the optical glass lens having a preset forming area of a lens holder; the injection mold is disposed with at least one pouring slot and disposed with a positioning device so as to localize the optical glass lens and the opening ring while being put into the injection mold for aligning an optical axis of the optical surface of the optical glass lens with a central axis of the optical glass lens set; putting and localizing at least one optical glass lens and an opening ring attached on the outer periphery of non-optical surface of the optical glass lens, used as a molded insert, into the injection mold; heating plastic material into preset temperature and pouring the plastic material into the preset forming area of the lens holder of the injection mold through the pouring slot; and after the plastic material cooled and hardened, releasing the optical glass lens set from the mold.