Title:
Imaging optics, a print head, an image forming device, and an image reader
Document Type and Number:
Japanese Patent JP5962909
Kind Code:
B2
Abstract:
An imaging system includes an incidence face having a plurality of optical faces formed along a first axis with a first pitch; a prism face having a plurality of grooves formed along the first axis with a second pitch; and an exit face having a plurality of optical faces formed along the first axis with a third pitch. A virtual plane extends from an end of the one optical face of the incidence face to an end of the one optical face of the exit face. Among light flux emitting from a spot light source and entering the one optical face of the incidence face, a light beam that passes over the virtual plane is reflected at the prism face, and passes over the virtual plane again and goes to the one optical face of the exit face.
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Inventors:
Shigeaki Imai
Application Number:
JP2012161098A
Publication Date:
August 03, 2016
Filing Date:
July 20, 2012
Export Citation:
Assignee:
株式会社リコー
International Classes:
G02B17/08; G02B3/08; G02B13/18; G11B7/135
Domestic Patent References:
| JP2000221443A | ||||
| JP11109282A | ||||
| JP4085516A | ||||
| JP56140302A |
Foreign References:
| US6177667 | ||||
| US5150259 | ||||
| US5035486 |
Attorney, Agent or Firm:
Atsushi Tateishi