Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LIGHT CONDENSING DEVICE, EXPOSURE DEVICE, AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2011048106
Kind Code:
A
Abstract:

To suppress distortion of an array of a plurality of columnar lenses when arranging and holding the plurality of columnar lenses in one direction.

A columnar lens array 42 includes: the plurality of columnar lenses 43 in each of which refractive index distribution is formed, and which are arrayed in two lines alternately along a main-scanning direction X so that their optical axes may turn to an optical axis direction Z; and a lens frame 44 which is provided along the main-scanning direction X, and puts and holds the plurality of columnar lenses 43 between an upstream side and a downstream side in a sub-scanning direction Y. Then, on a front side wall member 44a of the lens frame 44, a plurality of front side grooves 45a, each of which goes in the optical axis direction Z, are formed side by side in the main-scanning direction X, and on a back-surface-side wall member 44b of the lens frame 44, a plurality of back-surface-side grooves 45b, each of which goes in the optical axis direction Z, are formed side by side in the main-scanning direction X.


Inventors:
HATORI TATSUYA
UMEZAWA TOMOKI
YAMAZAKI KENJI
KOBAYASHI MASAKI
Application Number:
JP2009196049A
Publication Date:
March 10, 2011
Filing Date:
August 26, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJI XEROX CO LTD
International Classes:
G02B3/00; B41J2/44; B41J2/45; B41J2/455; G02B7/02; H04N1/036; H04N1/23
Domestic Patent References:
JP2003285469A2003-10-07
JP2002240343A2002-08-28
JPH01108506U1989-07-21
JP2008093886A2008-04-24
JPH09226170A1997-09-02
JP2008242307A2008-10-09
JPH05147264A1993-06-15
Attorney, Agent or Firm:
Jiro Kobe
Takeshi Senda
Takefusa Kubo



 
Previous Patent: DEVELOPING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME

Next Patent: DISPLAY PANEL SUPPORTING DEVICE