公开(公告)号：US20180152580A1

公开(公告)日：2018-05-31

申请号：US15825877

申请日：2017-11-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takaaki MURASE

IPC: H04N1/028 ,  H04N1/10 ,  H04N1/113 ,  H04N1/03

CPC classification number: H04N1/02885 ,  H04N1/0301 ,  H04N1/1013 ,  H04N1/1056 ,  H04N1/113 ,  H04N2201/0081 ,  H04N2201/0414 ,  H04N2201/0458

Abstract: A reading module has a light source, an optical system imaging, as image light, reflected light of the light radiated from the light source to the document, and a sensor converting the image light imaged by the optical system into an electrical signal. The optical system has a mirror array in which reflection mirrors are coupled together in an array in the main scanning direction and an aperture stop portion having a first aperture adjusting the amount of image light reflected from a reflection mirror and a second aperture shielding stray light that enters the first aperture from an adjacent reflection mirror. The second aperture is arranged at such a position as to be able to shield stray light passing through a boundary between the reflection mirrors and the center of the first aperture when the mirror array contracts to the maximum extent in the main scanning direction.

公开(公告)号：US20180035002A1

公开(公告)日：2018-02-01

申请号：US15648822

申请日：2017-07-13

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takaaki MURASE

IPC: H04N1/193 ,  H04N1/028

CPC classification number: H04N1/1937 ,  H04N1/02835 ,  H04N1/02885 ,  H04N2201/0094

Abstract: A reading module includes: a light source for applying light to a document; an optical system for forming an image as image light from reflected light of the light applied from the light source to the document; and a sensor in which a plurality of sensor chips for converting the image light formed by the optical system to electric signals are disposed in adjacency to one another in a main scanning direction. The optical system includes: a mirror array in which a plurality of reflecting mirrors whose reflecting surfaces are aspheric surfaces are coupled in array in the main scanning direction; and apertures provided between the reflecting mirrors and the sensor chips, respectively, to regulate light quantity of the image light reflected by the individual reflecting mirrors. The specular-surface number of the reflecting mirrors is set to an integral multiple of the number of the sensor chips.