Tools for lens processing
OwnerJames Gregory Goergesinventor
Life of this patent
Estimating the term…
Abstract
A lens processing system used for removing a lens blank (98, 110) from an edging block (40). The system includes an elongated collet (22) that engages the mating edging block (40). The block (40) includes an enlarged groove (41) that receives a pair of blades (65, 66) extended upwardly from the floor (75) of the collet (22). Each lens blank (98,110) is formed to include a series of surface markings (191,192) to verify proper functioning of the edging machine that forms a finished lens. Each lens blank also includes a series of circular markings (117,133) arranged in diagonal rows to verify the accurate drilling of bores with the lens blank (98,110).
Claims20
A lens processing system, comprising:
- (a) an edging block, the edging block being adapted to receive a machined lens;
- (b) a collet, the collet being adapted to grip the edging block, the collet being adapted to rotate while the machined lens is held in a stationary position;
- and
- (c) a calibration lens, the calibration lens being adapted to mount on the edging block, the calibration lens further comprising:
- (i) a plurality of linear surface markings;
- and
- (ii) a plurality of circular markings.
An elongated collet providing for the removal of a blocked lens from an edging block in association with a rigid base plate and a pair of movable, substantially opposed arms having substantially planar faces, the opposed arms being movable toward each other so as to grip a blocked lens between the substantially planar faces of the opposed arms, the opposed arms residing above the base plate, the elongated collet comprising:
- (a) a generally cylindrical sidewall;
- (b) four longitudinal slots, the longitudinal slots partially separating the generally cylindrical sidewall into four separate sectors;
- (c) a frustoconical transition, the frustoconical transition being integrally formed with and adjoining the generally cylindrical sidewall;
- (d) a lip, the lip defining a terminal end of the frustoconical transition;
- (e) a turret, the turret including an integrally formed turret floor;
- (f) a base, the base being formed integrally with the generally cylindrical sidewall;
- and
- (g) a keyway, the keyway being integrally formed as a portion of the base, the keyway being adapted to mate with a fixture capable of rotating the elongated collet.
A method of calibrating a lens machining device, comprising the steps of:
- (a) forming a calibration lens containing information corresponding to characteristics of a properly machined lens;
- (b) machining the calibration lens with the lens machining device;
- and
- (c) comparing the information on the calibration lens with markings on the calibration lens attributable to the lens machining device.
Dependencies are inferred from the claim text.