Title:
LIGHT GUIDE DEVICE, LIGHT SOURCE DEVICE AND IMAGE READER
Document Type and Number:
Japanese Patent JP2014195234
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light guide device which can obtain desired light distribution while deterioration of irradiation efficiency of light radiated on a document from a light guide body is suppressed and to provide a light source device and an image reader.SOLUTION: A light guide device 1 includes: light guide bodies 20a and 20b; and reflection members 30a and 30b. The light guide bodies 20a and 20b extend in a main scanning direction X and light is made incident on the bodies from an end in the main scanning direction X. The light guide bodies 20a and 20b emit light made incident from the end in paper face directions Z1 and Z2. The reflection members 30a and 30b are arranged along the light guide bodies 20a and 20b and reflect the light from the light guide bodies 20a and 20b toward the paper face directions Z1 and Z2. Widths W1 and W2 in the paper face directions Z1 and Z2 in the reflection members 30a and 30b differ in accordance with positions in the main scanning direction X.
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Inventors:
AKAHORI YUICHI
Application Number:
JP2013071427A
Publication Date:
October 09, 2014
Filing Date:
March 29, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
H04N1/04; G03B27/54; G06T1/00; H04N1/028
Domestic Patent References:
| JPH10190960A | 1998-07-21 | |||
| JPH08223368A | 1996-08-30 | |||
| JPS59107341A | 1984-06-21 | |||
| JP2010020920A | 2010-01-28 | |||
| JP2011014301A | 2011-01-20 | |||
| JPH11317854A | 1999-11-16 | |||
| JPS62220059A | 1987-09-28 |
Attorney, Agent or Firm:
Patent business corporation pro フィック patent firm
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