Lens production method and process
AssigneeKTI Technologies Ltd.
InventorsOded Katzman, Youval Katzman
Life of this patent
Estimating the term…
Abstract
A method for processing a first optical face and a second optical face of a lens, where a lens blank is positioned and gripped by a gripping device relying on reference datum indications rendering it possible to obtain topographic orientation for processing both faces of the lens, and wherein not more then one reference datum indication extends on a face of the lens.
Claims63
A method for processing a first optical face and a second optical face of a lens, where the a lens blank is positioned and gripped by a gripping device relying on reference datum indications rendering it possible to obtain topographic orientation for processing both faces of the lens, and wherein not more then one reference datum indication extends on a face of the lens.
A method for processing optical faces of a lens, comprising the following steps:
- (a) Obtaining a lens blank;
- (b) Gripping the lens blank by a gripping device for use in conjunction with a lens processing machine;
- (c) Processing the lens blank to obtain full-spatial reference datum indications and processing a first optical face of the lens whereby said reference datum indications define the coordinates of the lens with respect to said first optical face;
- and wherein not more then one reference datum indication extends on the optical face of the lens;
- (d) Turning over the lens blank and gripping it while relying on said reference datum indications;
- and
- (e) Processing a second optical face of the lens.
A method for processing optical faces of a lens, comprising the following steps:
- (a) Obtaining a lens blank;
- (b) Gripping the lens blank by a gripping device for use in conjunction with a lens production machine;
- (c) Processing the lens blank to obtain full-spatial reference datum indications and processing a first optical face of the lens whereby said reference datum indications define the coordinates of the lens with respect to said first optical face;
- and wherein not more then one reference datum indication extends on the first optical face of the lens;
- (d) Blocking the first optical face of the lens to a blocking chuck, where reference datum indications of the blocking chuck are in register with the reference datum indications of the lens blank;
- (e) Gripping the blocking chuck by the gripping device;
- and
- (f) Processing a second optical face of the lens.
A lens blank pre-formed with reference datum indications providing full-spatial reference datum, whereby the blank may than be gripped by a gripping device for use in conjunction with a lens processing apparatus, relying on said reference datum indications for gripping and processing a first optical face and a second optical face of the lens.
A method for processing optical faces of a lens, comprising the following steps:
- (a) Obtaining a lens blank pre-formed with reference datum indications providing full-spatial reference datum indications sufficient for processing a first optical face and a second optical face of the lens;
- (b) Gripping the lens blank by a gripping device for use in conjunction with a lens production apparatus and processing the first optical face of the lens relying on said reference datum indications;
- wherein not more then one reference datum indication extends on an optical surface of the lens;
- (c) Turning over the lens blank and gripping it while relying on said reference datum indications;
- and
- (d) Processing the second optical face of the lens.
A method for processing optical faces of a lens, comprising the following steps:
- (a) Obtaining a lens blank pre-formed with reference datum indication providing full-spatial reference datum indications sufficient for processing a first optical face and a second optical face of the lens;
- (b) Gripping the lens blank by a gripping device for use in conjunction with a lens production apparatus and processing the first optical face of the lens relying on said reference datum indications;
- wherein not more then one reference datum indication extends on an optical surface of the lens
- (c) Blocking the first optical face of the lens to a blocking chuck, where reference datum indications of the blocking chuck are in register with the reference datum indications of the lens blank;
- (d) Gripping the blocking chuck by a gripping device for use in conjunction with a lens production apparatus;
- and
- (e) Processing the second optical face of the lens.
An adapter for use in the processing of an optical lens, the adapter comprising a lens blank receiving zone for receiving and fixedly supporting a lens blank, and an engagement zone for engagement with a gripping device for use in conjunction with a lens processing apparatus, said engagement zone comprising reference datum indications providing full-spatial orientation for processing at least a first optical face of the lens.
A method for processing optical faces of a lens wherein processing optical faces of the lens is carried out while a lens blank is gripped at peripheral surfaces thereof.
A method for processing optical faces of a lens wherein gripping a lens blank during processing optical faces of the lens is carried out by gripping the blank at portions of the blank having a radius greater then that of the processed optical faces.
A method for processing optical faces of a lens wherein processing optical faces of the lens is carried out while a lens blank is directly gripped.
A method for processing a first optical face and a second optical face of a lens, where gripping and orientating a lens blank with respect to grippers of a lens processing equipment is carried out by a chuck associated with each face of the lens and being in full register with one another.
A method for processing a first optical face and a second optical face of a lens, comprising the following steps:
- (a) Obtaining a lens blank with an a-priory integral chuck extending at one face thereof;
- (b) Processing a first face of the lens whilst gripping the blank by said integral chuck;
- (c) Attaching an additional chuck to said first face in full register with said integral chuck;
- (d) Gripping the blank at said additional chuck and machined away the integral chuck and processing the second face of the lens.
A method for processing a first optical face and a second optical face of a lens, comprising the following steps:
- (a) Obtaining a simple lens blank;
- (b) Attaching a first chuck to a face of the blank;
- (c) Processing a first face of the lens whilst gripping the lens blank by said first chuck;
- (d) Blocking a second chuck to said first face of the lens, in full register with said first chuck;
- (e) Gripping the blank by said second chuck, removing the first chuck and processing the second face of the lens.
An apparatus for orientation and blocking of a first and a second chuck to a lens blank, said apparatus comprising a first chuck gripper and a second chuck gripper where at least one of said grippers is axially displaceable along an axis parallel to an axis extending between said chuck grippers, whereby chucks gripped by said grippers are in full register with one another.
Dependencies are inferred from the claim text.