Optical: systems and elements – Lens – Diffusing
Reexamination Certificate
2009-05-06
2010-12-14
Thompson, Timothy J (Department: 2873)
Optical: systems and elements
Lens
Diffusing
C359S530000
Reexamination Certificate
active
07852570
ABSTRACT:
A cutting tool assembly having a tool post capable of lateral movement along a work piece to be cut and an actuator with at least one machined tool tip and possibly other tool tips. The actuator provides for control of the movement of the tool tip in an x-direction into and out of the work piece in order to make continuous or discontinuous diffractive features in it. The machined work piece can be used to make articles having diffractive features such as optical films having lenslets.
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Clements Jeffrey E.
Dupre Mark R.
Gardiner Mark E.
3M Innovative Properties Company
Thompson Timothy J
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