Precision Freeform Structuring for the Fabrication of Coded Lenses
AssigneeNorthwestern University
InventorsPing Guo, Yaoke Wang
Life of this patent
Estimating the term…
Abstract
A system for fabricating coded lenses includes a cutting tool configured to controllably cut a workpiece at a specified position-dependent depth while traversing a surface of the workpiece along a specified two-dimensional path. A signal generator is operative to generate a signal for controlling fabrication of a coded lens from the workpiece. A vibration tool is operative to ultrasonically vibrate the cutting tool for cutting of gratings on the workpiece.
Claims20
A system for fabricating coded lenses comprising:
- a cutting tool configured to controllably cut a workpiece at a specified position-dependent depth while traversing a surface of the workpiece along a specified two-dimensional path;
- a signal generator operative to generate a signal for controlling fabrication of a coded lens from the workpiece;
- and
- a vibration tool operative to ultrasonically vibrate the cutting tool for cutting of gratings on the workpiece.
A method for fabricating coded lenses comprising:
- generating a signal for controlling fabrication of a coded lens from a workpiece;
- causing a cutting tool to traverse a surface of the workpiece along a specified two-dimensional path, based on the signal;
- controllably cutting a workpiece at a specified position-dependent depth while traversing the surface of the workpiece along the specified two-dimensional path, based on the signal;
- and
- ultrasonically vibrating the cutting tool for cutting gratings on the workpiece.
A non-transitory machine-readable storage medium having instructions stored thereon for causing a processor to execute the method:
- generating a signal for controlling fabrication of a coded lens from a workpiece;
- causing a cutting tool to traverse a surface of the workpiece along a specified two-dimensional path, based on the signal;
- controllably cutting a workpiece at a specified position-dependent depth while traversing the surface of the workpiece along the specified two-dimensional path, based on the signal;
- and
- ultrasonically vibrating the cutting tool for cutting gratings on the workpiece.
Dependencies are inferred from the claim text.