PROCEDURE FOR THE PROMOTION OF A LINE OR A GUIDELINE FORM

摘要

PCT No. PCT/SE81/00319 Sec. 371 Date Jun. 21, 1982 Sec. 102(e) Date Jun. 21, 1982 PCT Filed Oct. 28, 1981 PCT Pub. No. WO82/01494 PCT Pub. Date May 13, 1982.In a method for producing a lens, particularly a glass lens or a mould for casting a lens, particularly a plastics lens, a lens or mould blank (3) is given rotation about an axis of symmetry to the blank relative a material-removing tool (7) and the tool (7) is applied to the surface (4) of the blank (3). A laser unit (7) is utilized as a tool, and the beam (11) of the laser unit (7) is caused with its focus (12) to provide vaporization and/or fusion of the surface material (4) on the blank (3) which is to be removed.