DEVICE AND METHOD FOR MACHINING OF AN OPTICAL LENS
1 Assignment
0 Petitions
Accused Products
Abstract
A device and a method for machining of a border of an optical lens in which the transition of the lens material to a blocking material or film material which adjoins along a border edge is optically detected in order to determine the shape of the border edge.
9 Citations
28 Claims
-
1-15. -15. (canceled)
-
16. A device for machining of an optical lens, comprising:
-
a lens made of a lens material, at least one of a blocking piece and a blocking material on which the lens has been blocked, a machining apparatus for peripheral-side machining of the lens which has been blocked, and a camera for optical detection of at least one transition of the lens material to at least one of the blocking piece or blocking material, a film which is located between the lens and the blocking piece and a transition of the film to the blocking piece or blocking material, and an evaluation device for determining a shape of the border edge of the lens facing the blocking piece or the blocking material from the at least one transition detected, wherein, to facilitate optical detection, the material of the film or blocking material differs from that of the lens with respect to at least one of color, reflectivity, transmissivity and/or luminescence. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
-
24. A method for machining a peripheral side of an optical lens that is blocked on a blocking piece or blocking material, comprising the steps of:
-
optically detecting of at least one transition of the lens material to at least one of the blocking piece or blocking material, a film which is located between the lens and the blocking piece and a transition of the film to the blocking piece or blocking material and determining an actual shape of a border edge of the lens facing the blocking piece or blocking material, machining a peripheral side of the blocking piece or blocking material together with the lens, wherein, to facilitate optical detection, a material of the film or blocking material is selected which differs from that of the lens with respect to at least one of color, reflectivity, transmissivity and luminescence. - View Dependent Claims (25, 26, 27, 28)
-
Specification