Title:
LENS UNIT, LED HEAD, EXPOSURE DEVICE, AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2018004839
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lens unit that, when the dimensions of components other than a lens surface on which light is made incident are reduced, enables accurate assembly of components of a lens array, an LED head, an exposure device, and an image forming apparatus.SOLUTION: There is provided a lens unit comprising a lens plate member that has a plurality of lenses arranged thereon and a light shielding member that has a plurality of openings arranged therein. The lenses and the openings correspond one by one; first positioning parts are formed respectively at parts of predetermined positions in the longitudinal direction of the lens plate member and the light shielding member; the first positioning parts are arranged continuously in a direction parallel to the optical axis direction of the lenses. Also provided are an LED head, an exposure device, and an image forming apparatus.SELECTED DRAWING: Figure 1
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Inventors:
YAMAMURA AKIHIRO
Application Number:
JP2016129346A
Publication Date:
January 11, 2018
Filing Date:
June 29, 2016
Export Citation:
Assignee:
OKI DATA KK
International Classes:
G02B7/02; G02B3/00; G02B13/24; G03G13/04; H04N1/036
Domestic Patent References:
| JP2013246349A | 2013-12-09 |
Attorney, Agent or Firm:
Masaru Sato
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