METHODS AND APPARATUS FOR CREATING APERTURES THROUGH MICROLENS ARRAYS USING CURVED CRADLES

Methods for creating apertures in a layer on a back side of a substrate that includes a microlens array on a front side thereof include curving the substrate into a cylindrical surface segment that defines an axis, so that the microlens array on the front side of the substrate faces the axis. A puls...

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Bibliographic Details
Main Authors GARDNER RICHARD N, WILSON JOHN W, COX BRIAN C, JERNIGAN REESE A, REED DAVID L
Format Patent
LanguageEnglish
Published 16.10.2008
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:Methods for creating apertures in a layer on a back side of a substrate that includes a microlens array on a front side thereof include curving the substrate into a cylindrical surface segment that defines an axis, so that the microlens array on the front side of the substrate faces the axis. A pulsed laser beam is scanned from the axis circumferentially along the cylindrical surface segment, to pass through the microlens array on the front side of the substrate and into the layer on the back side of the substrate to create the apertures, while simultaneously translating the substrate and/or the scanned pulsed laser beam axially relative to one another. Related apparatus and microlens array products are also disclosed.
Bibliography:Application Number: US20080119672