Title:
OPTICAL CONSTRUCTIONS INCORPORATING LIGHT GUIDE AND LOW REFRACTIVE INDEX FILMS
Document Type and Number:
Japanese Patent JP2016075952
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide optical constructions capable of reducing the cost of light sources, reducing the number of components in the light sources, and making the light sources thinner and more efficient.SOLUTION: Optical constructions use a low index of refraction layer (120) disposed between a low absorption layer (101) and a high absorption layer (103) to increase confinement of light to the low absorption region of the optical constructions. Low refractive index layers can be used in optical constructions that have multi-tiered light confinement. In these constructions, a first tier of reflection is provided when light is reflected at the surface of a low refractive index optical film which is disposed directly or indirectly on a light guide (110). A second tier of reflection occurs at the surface of a light redirecting film having appropriately oriented refractive structures.SELECTED DRAWING: Figure 1A
Inventors:
JOHN A WHEATLEY
LIU TAO
HAO ENCAI
LIU TAO
HAO ENCAI
Application Number:
JP2016001625A
Publication Date:
May 12, 2016
Filing Date:
January 07, 2016
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO
International Classes:
G02B5/02; F21S2/00; F21V5/00; F21V23/00; G02F1/13357; G09F13/18
Domestic Patent References:
| JP2005134441A | 2005-05-26 | |||
| JP2006146241A | 2006-06-08 | |||
| JP2009086577A | 2009-04-23 | |||
| JP2009283441A | 2009-12-03 | |||
| JP2009064575A | 2009-03-26 | |||
| JP2009266409A | 2009-11-12 | |||
| JP2008241889A | 2008-10-09 | |||
| JP2009522717A | 2009-06-11 |
Foreign References:
| US20080225506A1 | 2008-09-18 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Masatoshi Takahashi
Hajime Kawahara
Naori Kota
Satoshi Deno
Takashi Ishida
Tetsuji Koga
Masatoshi Takahashi
Hajime Kawahara
Naori Kota
Satoshi Deno