公开(公告)号：US5721631A

公开(公告)日：1998-02-24

申请号：US620103

申请日：1996-03-21

申请人： Hiromu Nakamura ,  Toshio Naiki ,  Etsuko Shibata ,  Satoru Ono

发明人： Hiromu Nakamura ,  Toshio Naiki ,  Etsuko Shibata ,  Satoru Ono

IPC分类号： G02B13/00 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/125 ,  G02B13/0005

摘要： A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction decreases as an angle of view in the main scanning direction increases.

公开(公告)号：US5563729A

公开(公告)日：1996-10-08

申请号：US296020

申请日：1994-08-25

申请人： Hiromu Nakamura ,  Toshio Naiki ,  Etsuko Shibata ,  Satoru Ono

发明人： Hiromu Nakamura ,  Toshio Naiki ,  Etsuko Shibata ,  Satoru Ono

IPC分类号： G02B13/00 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/125 ,  G02B13/0005

摘要： A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction decreases as an angle of view in the main scanning direction increases.

摘要翻译： 扫描装置具有光束偏转器和单个θθ透镜。 偏转器以均匀的角速度偏转扫描表面上的会聚光束。 fθ透镜布置在偏转器和扫描表面之间。 fθ透镜在主扫描方向上是双凸的，并且由折射率至多为1.6的材料制成。 fθ透镜在主扫描方向上的一个表面是如此弯曲的，使得主扫描方向上的曲率半径随主扫描方向的视角而增大。

公开(公告)号：US06449107B2

公开(公告)日：2002-09-10

申请号：US09757639

申请日：2001-01-11

申请人： Hidenari Tachibe ,  Hiromu Nakamura ,  Etsuko Shibata

发明人： Hidenari Tachibe ,  Hiromu Nakamura ,  Etsuko Shibata

IPC分类号： G02B702

CPC分类号： G02B26/12

摘要： The light beam scanning device has a casing injection molded from magnesium or magnesium alloy as the material. A polygon mirror and a motor are sealed in the inside of the casing and a cover covering the latter. Since the thickness of the magnesium or magnesium alloy material can be reduced, heat generated from a motor is dissipated satisfactorily. Heat dissipating fins are formed to the casing to promote heat dissipation and enhance the strength of the casing.

摘要翻译： 光束扫描装置具有以镁或镁合金注射成型的外壳作为材料。 多面反射镜和电动机被密封在壳体的内部，盖子覆盖其中。 由于可以减少镁或镁合金材料的厚度，所以从电动机产生的热量可以令人满意地消散。 散热片形成在壳体上，以促进散热，提高套管的强度。

公开(公告)号：US5532866A

公开(公告)日：1996-07-02

申请号：US224507

申请日：1994-04-07

申请人： Etsuko Shibata ,  Hiromu Nakamura

发明人： Etsuko Shibata ,  Hiromu Nakamura

IPC分类号： G02B26/10 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/126

摘要： A light beam scanning optical apparatus which deflects a light beam emitted from a light source with a polygonal mirror and scans the light beam on a photosensitive member through an f.theta. optical system. Suppose the distance between a rotation axis of the polygonal mirror and each reflecting facet in a case wherein the reflecting facets are flat to be A. If a convergent light beam is incident to the polygonal mirror, and if the reflecting facets are concave, the distance between the rotation axis and the facets is adjusted to be larger than A. If the reflecting facets are convex, the distance is adjusted to be smaller than A. Also, if a divergent light beam is incident, and if the reflecting facets are concave, the distance between is adjusted to be smaller than A. If the reflecting facets are convex, the distance is adjusted to be larger than A.

摘要翻译： 一种光束扫描光学装置，其使用多面镜偏转从光源发射的光束，并通过fθ光学系统扫描感光构件上的光束。 假设在反射面平坦的情况下多棱镜的旋转轴与各反射面之间的距离为A.如果会聚光束入射到多面镜，并且如果反射面是凹的，则距离 旋转轴和小面之间的距离被调整为大于A.如果反射面是凸的，则将距离调整为小于A.此外，如果发散光束入射，并且如果反射面是凹的， 将距离调整为小于A.如果反射面是凸的，则将距离调整为大于A.

公开(公告)号：US06195190B1

公开(公告)日：2001-02-27

申请号：US09315085

申请日：1999-05-19

申请人： Hidenari Tachibe ,  Hiromu Nakamura ,  Etsuko Shibata

发明人： Hidenari Tachibe ,  Hiromu Nakamura ,  Etsuko Shibata

IPC分类号： G02B2608

CPC分类号： G02B26/12

摘要： The light beam scanning device has a casing injection molded from magnesium or magnesium alloy as the material. A polygon mirror and a motor are sealed in the inside of the casing and a cover covering the latter. Since the thickness of the magnesium or magnesium alloy material can be reduced, heat generated from a motor is dissipated satisfactorily. Heat dissipating fins are formed to the casing to promote heat dissipation and enhance the strength of the casing.

摘要翻译： 光束扫描装置具有以镁或镁合金注射成型的外壳作为材料。 多面反射镜和电动机被密封在壳体的内部，盖子覆盖其中。 由于可以减少镁或镁合金材料的厚度，所以从电动机产生的热量可以令人满意地消散。 散热片形成在壳体上，以促进散热，提高套管的强度。

公开(公告)号：US5926306A

公开(公告)日：1999-07-20

申请号：US948852

申请日：1997-10-10

申请人： Hiromu Nakamura ,  Toshio Naiki ,  Etsuko Shibata ,  Satoru Ono

发明人： Hiromu Nakamura ,  Toshio Naiki ,  Etsuko Shibata ,  Satoru Ono

IPC分类号： G02B13/00 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/125 ,  G02B13/0005

摘要： A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction A decreases as an angle of view in the main scanning direction increases.

摘要翻译： 扫描装置具有光束偏转器和单个θθ透镜。 偏转器以均匀的角速度偏转扫描表面上的会聚光束。 fθ透镜布置在偏转器和扫描表面之间。 fθ透镜在主扫描方向上是双凸的，并且由折射率至多为1.6的材料制成。 fθ透镜在主扫描方向上的一个表面是如此弯曲的，使得主扫描方向A上的曲率半径随主扫描方向的视角增加而减小。

公开(公告)号：US06504657B1

公开(公告)日：2003-01-07

申请号：US08900985

申请日：1997-07-25

申请人： Satoru Ono ,  Etsuko Shibata

发明人： Satoru Ono ,  Etsuko Shibata

IPC分类号： G02B1318

CPC分类号： G02B26/125 ,  G02B7/02

摘要： An optical member having a toric functional surface has a marking which is made by a configuration of a mold used to form the optical member. The marking is formed in the optical member outside an effective area of the functional surface of the optical member. In one embodiment, the optical member is an optical member for a scanning optical system.

摘要翻译： 具有复曲面功能表面的光学构件具有由用于形成光学构件的模具的构造制成的标记。 标记在光学构件外部形成在光学构件的功能表面的有效区域之外。 在一个实施例中，光学构件是用于扫描光学系统的光学构件。

公开(公告)号：US06208448B1

公开(公告)日：2001-03-27

申请号：US09223804

申请日：1998-12-31

申请人： Etsuko Shibata

发明人： Etsuko Shibata

IPC分类号： G02B2608

CPC分类号： G02B26/124

摘要： A scanning optical apparatus constitutes a light source which emits a ray in a wavelength range of 460 to 650 nm, a first lens unit for forming a luminous flux using the ray and having at least one or more positive lens element, a scanner for scanning the luminous flux, a second lens unit for forming an image on a scanned medium using the luminous flux and a holding structure connected the light source to the first lens unit via at least two support members having mutually different linear expansion coefficients. In scanning optical apparatus, the movement of the image forming point on the scanned medium caused by change in the oscillation wavelength of the light source is compensated by the thermal expansion of the support members.

摘要翻译： 扫描光学装置构成发射波长为460nm至650nm的光线的光源，用于使用该光线形成光束并具有至少一个或多个正透镜元件的第一透镜单元，用于扫描 光通量，第二透镜单元，用于使用光束在扫描介质上形成图像;以及保持结构，通过至少两个具有相互不同的线膨胀系数的支撑构件将光源连接到第一透镜单元。 在扫描光学装置中，由于光源的振荡波长的变化引起的扫描介质上的图像形成点的移动由支撑构件的热膨胀来补偿。