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Patent Searching and Data


Title:
LIGHT GUIDE, LIGHT SOURCE DEVICE, AND IMAGE READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/097995
Kind Code:
A1
Abstract:
This light guide (1) is equipped with: a first emission section (1b) for emitting first outgoing light; a second emission section (1c) for emitting second outgoing light in a different direction from that of the first outgoing light; and a reflection section (1a) for reflecting light which enters the inside of the light guard toward the first emission section (1b) and toward the second emission section (1c). The first emission section (1b) and the second emission section (1c) respectively have a first curved surface and a second curved surface each having a convex cross-section orthogonal to the length direction thereof. The second emission section (1c) is connected to the first emission section (1b) in a direction orthogonal to the length direction. In a plane facing the first emission section (1b) and the second emission section (1c), the reflection section (1a) is located at a position which is shifted in a direction orthogonal to the length direction from the position where a normal to the plane passes through the position where the first emission section (1b) and the second emission section (1c) are connected together.

Inventors:
FUJIUCHI AKIKO (JP)
ARIMOTO HIRONOBU (JP)
MATSUZAWA TAKU (JP)
Application Number:
PCT/JP2013/083508
Publication Date:
June 26, 2014
Filing Date:
December 13, 2013
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04N1/04; F21V8/00; G02B6/00; G03B15/03; G03B27/54; H04N1/028; F21Y101/02
Domestic Patent References:
WO2007119290A12007-10-25
WO2007105293A12007-09-20
Foreign References:
JP2011071696A2011-04-07
JP2011182370A2011-09-15
JP2011101098A2011-05-19
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
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