Grinding machine for forming the edge of an ophthalmic lens

Details Grinding machine for forming the edge of an ophthalmic lens Grinding machine for forming the edge of an ophthalmic lens

1984-03-22

1986-06-24

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51284E, 5116575, 409 99, B24B 1700

Patent

active

045960917

ABSTRACT:
In a method for bevelling an ophthalmic lens, the lens is rotated about its own axis and is also displaced parallel to its axis as a function of its angle of rotation. Simultaneously, the edge of the lens is kept in contact with a grinding wheel. Thus the point of contact of the lens with the grinding wheel is constrained to follow a specific path. The specific path to be followed by the point of contact is an intermediate path selected between two paths resulting from a comparison between a collection of predetermined paths and two reference paths. The reference paths are each obtained from a plotting operation carried out prior to the bevelling operation on the ophthalmic lens using feelers. This method is used in grinding machines such that trimming and bevelling of ophthalmic lenses can be automatically performed.

REFERENCES:
patent: 2559431 (1951-07-01), Hollengreen et al.
patent: 2639562 (1953-05-01), Balsiger
patent: 3112583 (1963-12-01), Koppenwallner
patent: 3332172 (1967-07-01), Stern
patent: 3769755 (1973-11-01), Kania et al.
patent: 4394099 (1983-07-01), Santinelli
patent: 4423569 (1984-01-01), Stern et al.

Affiliated with

Also associated with

Rating

Grinding machine for forming the edge of an ophthalmic lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grinding machine for forming the edge of an ophthalmic lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grinding machine for forming the edge of an ophthalmic lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2080467