Optical lenses blocker
The function of double-sided lens paste:
First, the lens will not be offset in the process of polishing, pupil distance, axis position more.
Second, the lens will not be crushed by the equipment in the polishing mold layer, there is a burst film, reduce processing errors.
Third, to prevent the processing of water film lenses or high degree of curvature lenses when slipping (this case with double-sided lens).