Improvements in microlens fabrication

Details Improvements in microlens fabrication Improvements in microlens fabrication

B - Operations, Transporting

29

D

B29D 11/00 (2006.01) G02B 3/00 (2006.01)

Patent

CA 2213327

A method of forming an optical element on the surface of a substrate by ejecting a curable microlens forming liquid from a nozzle onto the surface of the substrate and curing the curable microlens forming liquid. The nozzle tip is parallel to the surface of the substrate when the nozzle tip is moved away from the substrate. Anamorphic lenses may be formed by moving the nozzle tip immediately after ejecting liquid onto the surface of the substrate. F/numbers of lenses in an array are made more uniform by allowing the lenses to settle while in liquid form before curing. F/number of lenses may be controlled by controlling the surface tension of the surface of the substrate.

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