Title:
LIGHT-GUIDE FORMING FILM AND METHOD FOR MANUFACTURING SAME, LIGHT GUIDE AND METHOD FOR MANUFACTURING SAME, AND ELECTRONIC EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2012/039443
Kind Code:
A1
Abstract:
The present invention provides: a light-guide forming film with which a light guide having a graded-index type refractive index distribution or a refractive index distribution similar thereto can be manufactured at low cost and with high efficiency; a light guide having high reliability and little propagation loss; and electronic equipment comprising such a light guide. In one embodiment of the present invention, a layer (910) (light-guide forming film of the present invention) includes a reactive medium which undergoes a chemical reaction accompanied by a change in refractive index in response to irradiation with active radiation (930) and has a refractive index distribution in which the refractive index continuously decreases from the inside to both surfaces in the thickness direction. By selectively irradiating an irradiation region (925) in the layer (910) with active radiation (930), a refractive index distribution having, sequentially, a very low value, a very large value, and a very low value can easily be formed. If this layer (910) has a refractive index distribution of this kind of shape, by employing this layer (910) it is easy to manufacture a light guide in which propagation loss and crosstalk can be suppressed.
Inventors:
CHOKI KOJI (JP)
TAKAHAMA KEIZO (JP)
KANETA MOTOYA (JP)
OWARI HIROSHI (JP)
MORIYA KIMIO (JP)
TAKAHAMA KEIZO (JP)
KANETA MOTOYA (JP)
OWARI HIROSHI (JP)
MORIYA KIMIO (JP)
Application Number:
PCT/JP2011/071530
Publication Date:
March 29, 2012
Filing Date:
September 21, 2011
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
CHOKI KOJI (JP)
TAKAHAMA KEIZO (JP)
KANETA MOTOYA (JP)
OWARI HIROSHI (JP)
MORIYA KIMIO (JP)
CHOKI KOJI (JP)
TAKAHAMA KEIZO (JP)
KANETA MOTOYA (JP)
OWARI HIROSHI (JP)
MORIYA KIMIO (JP)
International Classes:
G02B6/13; C08J5/18; C08L45/00; G02B6/12; G02B6/122
Foreign References:
| JP2006023374A | 2006-01-26 | |||
| JP2010060669A | 2010-03-18 | |||
| JP2004333883A | 2004-11-25 | |||
| JP2010169945A | 2010-08-05 | |||
| JP2006018121A | 2006-01-19 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Sumio Tanai (JP)
Sumio Tanai (JP)
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Claims: