METHOD OF PRODUCING A MICROSTRUCTURED PRODUCT

Title:

METHOD OF PRODUCING A MICROSTRUCTURED PRODUCT

Document Type and Number:

WIPO Patent Application WO/2009/085004

Kind Code:

A8

Abstract:

The present invention provides a method of producing a two-sided microstructured product and a registration structure that can be used for the method. The method comprises the steps of: (800) providing primary product features (80) at a first surface of a substrate sheet (50); (810) providing secondary product features (90) at an opposed surface; (820) registering the mutual alignment of the primary and secondary product features (80, 90) to estimate alignment parameters; and (830) aligning the provision of primary and secondary product features (80, 90).The registration structure comprises a registration-array of focusing elements (20) at a first surface and a registration-array of reference objects (30) at an opposed surface aligned with primary and secondary product features (80,90) that provides a holographic representation (10) of the reference objects(30) in order to estimate the alignment of product features (80,90).

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Inventors:

LUNDVALL AXEL (SE)
NIKOLAJEFF FREDRIK (SE)
GUSTAVSSON FREDRIK (SE)
EKLUND ROBERT (SE)

Application Number:

PCT/SE2008/051538

Publication Date:

November 18, 2010

Filing Date:

December 19, 2008

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Assignee:

ROLLING OPTICS AB (SE)
LUNDVALL AXEL (SE)
NIKOLAJEFF FREDRIK (SE)
GUSTAVSSON FREDRIK (SE)
EKLUND ROBERT (SE)

International Classes:

G03F9/00; B29C59/04; G03H1/04; H05K3/00; H05K13/02

Attorney, Agent or Firm:

BRANN AB (S- Stockholm, SE)

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