Title:
拡散光入力インターフェースをもつ光ガイド
Document Type and Number:
Japanese Patent JP2014505320
Kind Code:
A
Abstract:
This disclosure provides systems, methods and apparatus for providing illumination by using a light guide to distribute light. In one aspect, the light guide has a surface, such as an edge, into which light is injected. The surface is treated to create a diffusive interface with a light source. For example, the surface may be subjected to abrasion to form a frosted surface that acts as the diffusive interface, or a diffusive structure may be attached to the edge, with the attached diffusive structure functioning as the diffusive interface. The diffusive interface diffuses light entering into the light guide, and can thereby increase the uniformity of light propagating within the light guide. The light guide may be provided with light turning features that redirect light out of the light guide. In some implementations, the redirected light may be applied to illuminate a display.
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Inventors:
One, Rye
Bursted, Tugras Curl
Narayanan, Correngoed S.
Li, Kevin
Vita, Aeon
Mienko, Marek
Gruulke, Russell Wayne
Bursted, Tugras Curl
Narayanan, Correngoed S.
Li, Kevin
Vita, Aeon
Mienko, Marek
Gruulke, Russell Wayne
Application Number:
JP2013539872A
Publication Date:
February 27, 2014
Filing Date:
November 02, 2011
Export Citation:
Assignee:
QUALCOMM MEMS Technologies, Inc.
International Classes:
F21S2/00; G02B26/02; B81B3/00; F21Y101/02
Domestic Patent References:
| JP2006196369A | 2006-07-27 | |||
| JP2003109417A | 2003-04-11 | |||
| JP2001243825A | 2001-09-07 | |||
| JP2010182478A | 2010-08-19 |
Foreign References:
| US20090201301A1 | 2009-08-13 | |||
| WO2009099219A1 | 2009-08-13 |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Toshio Shirane
Takashi Mine
Katsu Sunagawa
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Toshio Shirane
Takashi Mine
Katsu Sunagawa