method of centering a pair of ophthalmic lenses to a frame in circle

摘要

The process involves moving ophthalmic lenses (110) to eliminate existing reference points between supports (11, 12) and edges (111, 112) of corresponding lens, if intersection points exist between the supports and the edges of the corresponding lens. The lenses are moved while maintaining relative heights between centering heights of the lenses and an inter-pupillar distance separating lenses` two optical or reference centers.