公开(公告)号：US06400488B1

公开(公告)日：2002-06-04

申请号：US09669894

申请日：2000-09-27

申请人： Yasushi Nagasaka ,  Jun Kohsaka ,  Kenji Takeshita

发明人： Yasushi Nagasaka ,  Jun Kohsaka ,  Kenji Takeshita

IPC分类号： G02B2608

CPC分类号： G02B26/12 ,  G02B26/121

摘要： A polygon mirror is enclosed in an airtight cap that is provided with a polygon window. By having the normal line to the surface of the polygon window tilt a predetermined angle in the main scanning direction with respect to the principal ray of the light beam that is to be applied to the polygon window, the reflected light, which is a part of the light beam reflected by the surface of the polygon window, is not applied to the image forming area of a photoconductive drum.

摘要翻译： 多面镜被封闭在设有多边形窗口的气密帽中。 通过使多边形窗口的表面的法线相对于要施加到多边形窗口的光束的主光线在主扫描方向上倾斜预定角度，反射光作为 由多边形窗口的表面反射的光束不被施加到感光鼓的图像形成区域。

公开(公告)号：US06341030B1

公开(公告)日：2002-01-22

申请号：US09613829

申请日：2000-07-11

申请人： Kenji Takeshita ,  Jun Kohsaka ,  Yasushi Nagasaka

发明人： Kenji Takeshita ,  Jun Kohsaka ,  Yasushi Nagasaka

IPC分类号： G02B2608

CPC分类号： G02B26/125

摘要： In an optical system, the scanning center axis of a scanning lens, the principal ray of a laser beam applied to the scanning lens, and the rotational axis of a polygon mirror are in one plane. By forming a thin film layer on the deflecting facets, the exposure quantity of a photo conductor, which decreases as the incident angle to the deflecting facet increases, is corrected. The thin film layer has the increasing ratio of the reflectance that increases as the incident angle, which principal ray of the laser beam forms with the normal line to the deflecting facet of the polygon mirror, increases.

摘要翻译： 在光学系统中，扫描透镜的扫描中心轴，施加到扫描透镜的激光束的主射线和多面镜的旋转轴在一个平面中。 通过在偏转小平面上形成薄膜层，校正随着偏转面的入射角度而减小的光导体的曝光量的增加。 薄膜层的反射率的比率随着入射角增加而增加，激光束的主光线与多边形反射镜的偏转小面的法线形成。

公开(公告)号：US5227811A

公开(公告)日：1993-07-13

申请号：US960267

申请日：1992-10-13

申请人： Jun Kohsaka

发明人： Jun Kohsaka

IPC分类号： G02B26/12

CPC分类号： G02B26/12

摘要： An optical scanning device for scanning the surface of a photosensitive member with an optical beam emitted from a light source. The optical scanning device has a casing for accommodating a plurality of optical members. The casing is provided with a baseplate having a top surface, a bottom surface and a curved portion integrally formed with the top surface and the bottom surface so as to connect the top surface and the bottom surface. In the casing, the plurality of optical members are dividedly attached to the top and bottom surfaces of the baseplate, and therefore the curved portion is provided with an aperture for transmitting the optical beam therethrough.

摘要翻译： 一种光学扫描装置，用于利用从光源发射的光束来扫描感光构件的表面。 光学扫描装置具有容纳多个光学部件的壳体。 壳体设置有具有顶表面，底表面和与顶表面和底表面一体形成的弯曲部分以便连接顶表面和底表面的基板。 在壳体中，多个光学构件被分割地附接到基板的顶表面和底表面，因此弯曲部分设置有用于透射光束的孔。

公开(公告)号：US5331343A

公开(公告)日：1994-07-19

申请号：US791045

申请日：1991-11-12

申请人： Satoru Ono ,  Jun Kohsaka

发明人： Satoru Ono ,  Jun Kohsaka

IPC分类号： B41J2/47 ,  G02B7/02 ,  B41J2/435

CPC分类号： B41J2/471 ,  G02B7/02

摘要： An optical apparatus includes a laser beam emitter for outputting a laser beam modulated in accordance with image information, and a lens unit resting on a lens mount. The lens unit includes, all formed integral with one another, an effective lens portion, a cylindrical portion surrounding a side surface of the effective lens portion, and projections extending from peripheral positions of the cylindrical portion. The lens mount includes a holder for holding the cylindrical portion of the lens unit to be rotatable and axially slidable on an optical axis of the laser beam, and a groove formed in the bottom of the holder for receiving the projection.

摘要翻译： 光学装置包括用于输出根据图像信息调制的激光束的激光束发射器和放置在透镜座上的透镜单元。 所述透镜单元包括彼此一体形成的有效透镜部分，围绕所述有效透镜部分的侧表面的圆柱形部分和从所述圆柱形部分的周边位置延伸的突起。 透镜座包括保持器，用于保持透镜单元的圆柱形部分能够在激光束的光轴上旋转和轴向滑动;以及形成在保持器的底部中的用于接收突起的凹槽。

公开(公告)号：US5293266A

公开(公告)日：1994-03-08

申请号：US990512

申请日：1992-12-15

申请人： Jun Kohsaka ,  Hiromu Nakamura ,  Masanori Yamamoto ,  Shinya Sakanashi

发明人： Jun Kohsaka ,  Hiromu Nakamura ,  Masanori Yamamoto ,  Shinya Sakanashi

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/121

摘要： An optical beam scanning apparatus wherein a resin polygonal scanner deflects a light beam radiated from a laser diode as the polygonal scanner is rotating. The polygonal scanner is pressed by a pressing member against a scanner rest which rotates together with a rotary shaft of a motor and thus fixed on the scanner rest. The pressing member has a plurality of tabs, and the polygonal scanner is pressed evenly when the tabs pierce the polygonal scanner.

摘要翻译： 一种光束扫描装置，其中当多边形扫描器旋转时，树脂多边形扫描仪偏转从激光二极管辐射的光束。 多边形扫描器被按压构件压靠在与马达的旋转轴一起旋转并因此固定在扫描器支架上的扫描器支架上。 按压构件具有多个突片，并且当突片刺穿多边形扫描器时，多边形扫描器被均匀地按压。

公开(公告)号：US5521763A

公开(公告)日：1996-05-28

申请号：US396876

申请日：1995-03-01

申请人： Satoru Ono ,  Hiromu Nakamura ,  Jun Kohsaka

发明人： Satoru Ono ,  Hiromu Nakamura ,  Jun Kohsaka

IPC分类号： G02B1/04 ,  B41J2/44 ,  G02B7/00 ,  G02B7/02 ,  G02B26/10 ,  G02B26/12 ,  G03G15/04 ,  G02B26/08

CPC分类号： G02B7/008 ,  G02B26/126 ,  G02B7/028

摘要： An optical device having an optical element, a base plate which has a mount surface for setting the optical element, a first holding member composed of at least a hole and a projection so as to permit the optical element mounted on the base plate to move longitudinally and a second holding member composed of a hole and a projection so as to restrain the optical element from moving in a direction orthogonal to an optical axis.

摘要翻译： 具有光学元件的光学元件，具有用于设置光学元件的安装面的基板，至少由孔和突起构成的第一保持部件，以使安装在基板上的光学元件纵向移动 以及由孔和突起组成的第二保持构件，以便限制光学元件沿与光轴正交的方向移动。