Calibration gauge for computer-controlled lens generator, or the like
AssigneeCoburn Optical Industries, Inc.
InventorEdgar L. Field, Jr.
Life of this patent
Estimating the term…
Abstract
A computer-controlled lens generating arrangement (1) has a calibration gauge (14) mountable on a lens chuck (28) and moveable into a calibration position for detecting a worn or eroded condition of a tool (18). When a worn or eroded condition of tool (18) is detected, data are provided to a computer (60) which recomputes positioning data for the chuck (28), and repositioning of the chuck (28), as well as the angle of the cutting tool (18), takes place.
Claims30
In a computer-controlled lens generating arrangement for generating a finished lens having desired parameters, comprising:
- holding means for holding a lens to be ground,
- grinding means for grinding said lens to generate said finished lens, and
- control means for generating electrical control signals in accordance with said desired parameters to actuate said grinding means to generate said finished lens,
- said grinding means comprising a grinding tool which is prone to become worn;
- a calibration gauge having means for mounting in said holding means for providing data signals indicating needed corrective repositioning of said holding means in order to compensate for wear of said grinding tool.
A calibration gauge for use in a computer-controlled lens generating arrangement, said arrangement including holding means for holding a lens to be ground and a tool for grinding said lens to provide a finished lens;
- wherein said calibration gauge includes means for mounting in said holding means so as to be moveable into a calibration position with respect to said tool;
- said calibration gauge comprising detecting means for detecting a worn condition of said tool, and generating means for generating data signals indicating needed corrective repositioning of said holding means, when said holding means is holding said lens to be ground, in order to compensate for said worn condition of said tool.
In a computer-controlled machining arrangement for machining a workpiece into a finished product having desired parameters, comprising:
- holding means for holding the workpiece to be machined,
- machining means for machining the workpiece to provide said finished product, and
- control means for generating electrical control signals in accordance with said desired parameters to actuate said machining means to provide said finished product,
- said machining means comprising a tool which is prone to become worn;
- a calibration gauge having means for mounting in said holding means for providing data signals indicating needed corrective repositioning of said holding means in order to compensate for wear of said tool.
A calibration gauge for use in a computer-controlled machining arrangement, said arrangement including holding means for holding a workpiece to be machined and a tool for machining said workpiece to provide a finished product;
- wherein said calibration gauge includes means for mounting in said holding means so as to be moveable into a calibration position with respect to said tool;
- said calibration gauge comprising detecting means for detecting a worn condition of said tool, and generating means for generating data signals indicating needed corrective repositioning of said holding means, when said holding means is holding said workpiece, in order to compensate for said worn condition of said tool.
Dependencies are inferred from the claim text.