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US 10,054,718 B2Granted
Systems and methods for machining materials
AssigneeFLIR Systems Trading Belgium BVBA
InventorsDavid Keller, Brett Brocato
Life of this patent
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AssigneeFLIR Systems Trading Belgium BVBA
InventorsDavid Keller, Brett Brocato
Estimating the term…
Systems, methods, and computer-readable media are provided for machining a feature on a work piece along a curving tool path including a spiral pattern with continuously varying radius. In particular, the feature is scribed by a tool while varying an angle of rotation of a cutting surface of the tool with respect to the work piece to maintain a substantially constant angle between the cutting surface and a corresponding relative translational movement between the cutting surface and the work piece along the spiral pattern. A dynamic feed rate of the tool also is varied continuously with respect to the work piece based on the continuously varying radius of the at least one spiral pattern to substantially maintain a target centripetal acceleration of the tool with respect to the work piece.
A work piece comprising:
A replication master for use in the production of an array of lenses comprising:
A lens formed at least in part by application of a replication master comprising a feature for defining at least a portion of the optical element, wherein the feature comprises at least one spiral pattern with continuously varying radius that was scribed while varying an angle of rotation of a cutting surface of a tool with respect to the replication master to maintain a substantially constant angle between the cutting surface and a corresponding relative translational movement between the cutting surface and the replication master along the at least one spiral pattern and continuously varying a dynamic feed rate of the tool with respect to the replica master based on the continuously varying radius of the at least one spiral pattern to substantially maintain a target centripetal acceleration of the tool with respect to the replica master.
Dependencies are inferred from the claim text.