Surface light source device

Details Surface light source device Surface light source device

2009-08-04

2011-11-08

Doan, Jennifer (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S056000, C349S062000, C349S067000, C349S084000, C349S104000, C362S609000, C362S611000, C362S615000

Reexamination Certificate

active

08054404

ABSTRACT:
A dichroic filter column (4) is provided on an incident surface (11). At least one of two end parts of a light guide plate (1) in a thickness direction is divided into a plurality of light guide paths (6), in a width direction of the light guide plate (1) by a plurality of cutout grooves (5). Portions of the plurality of light guide paths (6) on an incident surface (11) side are aligned in accordance with positions of a plurality of dichroic filters (31), respectively. The plurality of dichroic filters (31) are elements of the dichroic filter column (4).

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Official Communication issued in International Patent Application No. PCT/JP2009/063821, mailed on Nov. 17, 2009.
Uchida et al., “Surface Light Source Device”, U.S. Appl. No. 13/057,184, filed Feb. 2, 2011.

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