![OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS](/abs-image/US/2009/08/27/US20090214261A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
- 专利标题(中):光学扫描装置和图像形成装置
- 申请号:US12362050 申请日:2009-01-29
- 公开(公告)号:US20090214261A1 公开(公告)日:2009-08-27
- 发明人: Makoto HIRAKAWA , Yoshinori Hayashi
- 申请人: Makoto HIRAKAWA , Yoshinori Hayashi
- 优先权: JP2008-020019 20080131
- 主分类号: G03G15/04
- IPC分类号: G03G15/04 ; G02B27/42
摘要:
An optical scanning device that scans a scanning surface with a light beam includes a light source that emits the light beam and a pre-deflector optical system that includes at least one diffractive optical element including a diffraction surface having no power at room temperature. The diffraction surface has a multi-step shape having a plurality of zone surfaces substantially perpendicular to an optical axis and a plurality of step surfaces each adjacent to each of the zone surfaces. On a cross sectional plane of the diffraction surface including the optical axis, each of the zone surfaces and each of the step surfaces makes an obtuse angle.
摘要(中):
用光束扫描扫描表面的光学扫描装置包括发射光束的光源和包括至少一个衍射光学元件的预偏转光学系统,该衍射光学元件包括在室温下没有电力的衍射面。 衍射表面具有多个阶梯形状,其具有基本上垂直于光轴的多个区域表面和与每个区域表面相邻的多个台阶表面。 在包括光轴的衍射面的横截面上,每个区域表面和每个台阶表面都形成钝角。
公开/授权文献:
- US08624951B2 Optical scanning device and image forming apparatus 公开/授权日:2014-01-07
IPC结构图谱:
G | 物理 |
--G03 | 摄影术;电影术;利用了光波以外其他波的类似技术;电记录术;全息摄影术 |
----G03G | 电记录术;电照相;磁记录 |
------G03G15/00 | 应用电荷图形的电记录工艺的设备 |
--------G03G15/04 | .曝光用的,即将原件图像光学投影到光导记录材料上而进行图像曝光 |