| 摘要 |
A lens mounting jig for mounting on a two axis coordinate movement bed of a CNC drilling machine for drilling holes in lenses of rimless spectacles. The jig comprises a carriage 29 having a lens holder 20 for holding one or more lenses 13, 14, each of which has a mounting block 19 bonded to a convex surface of the lens. The table 29 is rotatable about a first axis (the longitudinal axis of spindle 34 so as to be able to present a convex surface of the lens 13, 14 to a drill 26 of the machine at a position where it is desired to drill a hole 17, 18 from the convex surface 41 towards a concave surface 44 of the lens 13, 14. Further embodiments include where the mounting block 19 is subject to a vacuum force to retain it in position. |
