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Title:
LIGHT CAPTURING SHEET AND ROD, AND LIGHT RECEIVING DEVICE AND LIGHT EMITTING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/080522
Kind Code:
A1
Abstract:
The light capturing sheet disclosed in the present application is provided with a translucent sheet that has first and second main surfaces and a plurality of light coupling structures disposed inside the translucent sheet at a first and second distance or greater from the first and second main surfaces thereof, respectively. Each of the plurality of light coupling structures includes a first translucent layer, a second translucent layer and a third translucent layer sandwiched between these layers. The indices of refraction of the first and second translucent layers are smaller than the index of refraction of the translucent sheet, and the index of refraction of the third translucent layer is larger than the indices of refraction of the first and second translucent layers. The third translucent layer has a two-dimensional diffraction grating parallel to the first and second main surfaces of the translucent sheet.

Inventors:
WAKABAYASHI SHINICHI
NISHIWAKI SEIJI
Application Number:
PCT/JP2012/007608
Publication Date:
June 06, 2013
Filing Date:
November 28, 2012
Export Citation:
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Assignee:
PANASONIC CORP (JP)
International Classes:
G02B6/34; F21V8/00; G02B5/02; G02B5/18; G02B6/00; G02B6/122; G02B6/42; H01L31/042; H01L31/052; H01L33/58; H01S5/022
Domestic Patent References:
WO2010151253A12010-12-29
WO2009005072A12009-01-08
WO2005093493A12005-10-06
WO2012046414A12012-04-12
Foreign References:
JP2005173116A2005-06-30
JP2003248128A2003-09-05
JP2011039442A2011-02-24
JP2005037872A2005-02-10
JPH05224018A1993-09-03
JP2007538292A2007-12-27
JP2003066203A2003-03-05
JP2001510902A2001-08-07
JPH07335855A1995-12-22
Attorney, Agent or Firm:
OKUDA, SEIJI (JP)
Seiji Okuda (JP)
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Claims:



 
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