Title:
IMAGE READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/199261
Kind Code:
A1
Abstract:
In order to easily change a light irradiation direction according to a reading position by a simple configuration, an image reading device is provided with: a line sensor 31 which linearly reads a medium P mounted on a mounting surface 11 in a main scanning direction of the mounting surface 11; a rotating mirror 51 which reflects and rotates a sensor optical axis S of the line sensor 31 to thereby move the sensor optical axis S in a sub-scanning direction of the mounting surface 11 with respect to the mounting surface 11; an illumination part 60 which irradiates at least a reading region of the line sensor 31 with light, and rotates in conjunction with the movement of the reading region; a rotating motor 55 which rotates the rotating mirror 51 and the illumination part 60; and a speed ratio conversion mechanism 80 which sets the rotation speed ratio between the rotating mirror 51 and the illumination part 60 to 1:2. A mirror rotating shaft 53 of the rotating mirror 51 coincides with a reflection surface 52 of the rotating mirror 51 and an illumination rotation axis L of the illumination part 60 when viewed from the main scanning direction, and the illumination part 60 applies light in a direction in which an illumination optical axis L coincides with the sensor optical axis S reflected by the reflection surface 52.
Inventors:
MIYANO SHOGO (JP)
TAKABATAKE MASANARI (JP)
IWAYAMA AKIRA (JP)
TAKABATAKE MASANARI (JP)
IWAYAMA AKIRA (JP)
Application Number:
PCT/JP2015/066797
Publication Date:
December 15, 2016
Filing Date:
June 10, 2015
Export Citation:
Assignee:
PFU LTD (JP)
International Classes:
H04N1/10; G06T1/00; H04N1/107; H04N5/222; H04N5/238
Foreign References:
JP2011244206A | 2011-12-01 | |||
JPH10117276A | 1998-05-06 | |||
JPH09181887A | 1997-07-11 |
Attorney, Agent or Firm:
ITO, Kenta et al. (JP)
Kenta Ito (JP)
Kenta Ito (JP)
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