Invention Grant
- Patent Title: Light irradiation device and inkjet printer
- Patent Title (中): 光照射装置和喷墨打印机
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Application No.: US11861897Application Date: 2007-09-26
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Publication No.: US07934802B2Publication Date: 2011-05-03
- Inventor: Shigenori Nakata , Katsuya Watanabe
- Applicant: Shigenori Nakata , Katsuya Watanabe
- Applicant Address: JP Tokyo
- Assignee: Ushiodenki Kabushiki Kaisha
- Current Assignee: Ushiodenki Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Roberts Mlotkowski Safran & Cole, P.C.
- Agent David S. Safran
- Priority: JP2006-261764 20060927
- Main IPC: B41J2/14
- IPC: B41J2/14 ; B41J2/16

Abstract:
A light irradiation device that is capable of good irradiance uniformity in the lengthwise direction and that is applicable to an inkjet printer. A light-emitting portion of a short-arc type discharge lamp is positioned at the first focal point of a reflector that has a reflecting surface in the shape of an ellipsoid of revolution, and the light from the discharge lamp is reflected by the reflector and is focused at the second focal point; after which the light is incident on multiple, columnar rod lenses 14. Of the light that is incident on the rod lenses, the light along the axial direction is focused at the second focal point of an elliptical reflector without being affected by the rod lenses, and the light along the direction perpendicular to the axial direction is focused by the rod lenses and then spreads and irradiates the light irradiation surface.
Public/Granted literature
- US20080074887A1 LIGHT IRRADIATION DEVICE AND INKJET PRINTER Public/Granted day:2008-03-27
Information query
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