LIGHT EMITTING DEVICE WITH MICROLENS ARRAY

WIPO Patent Application WO2008063440

A9

A light-emitting device, comprising: a light emitting element on a first side of a transparent substrate or cover through which light is emitted; and a microlens array on a second side, opposite to the first side, of the transparent substrate or cover though which light is emitted; wherein the microlens array comprises individual hemispherical shaped microlenses having a mean diameter of less than 20 micrometers and a mean microlens height to diameter ratio of greater than 0.30, and has a microlens area fill factor greater than 0.8.

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CHARI KRISHNAN (US)
LANDER CHARLES W (US)
WANG JIN-SHAN (US)
PREUSS DONALD ROBERT (US)
COK RONALD STEVEN (US)
TYAN YUAN-SHENG (US)
SHORE JOEL DAVID (US)

PCT/US2007/023664

October 02, 2008

November 08, 2007

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EASTMAN KODAK CO (US)
CHARI KRISHNAN (US)
LANDER CHARLES W (US)
WANG JIN-SHAN (US)
PREUSS DONALD ROBERT (US)
COK RONALD STEVEN (US)
TYAN YUAN-SHENG (US)
SHORE JOEL DAVID (US)

B29C33/38; B29C33/40; B29C33/42; B29C37/00; B29D11/00; G02B3/00; H01L51/52

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