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1. 发明授权

US5294945A Laser beam optical scanning system and laser printing provided with the laser beam optical scanning system 失效
标题翻译：激光束光学扫描系统和激光打印提供激光束光学扫描系统
公开(公告)号：US5294945A
公开(公告)日：1994-03-15
申请号：US66504
申请日：1993-05-24
申请人： Kunihiko Omura , Akiyoshi Hamada , Satoru Ono , Hiromu Nakamura
发明人： Kunihiko Omura , Akiyoshi Hamada , Satoru Ono , Hiromu Nakamura
IPC分类号： B41J2/44 , B41J2/47 , G02B26/10 , H04N1/053 , H04N1/113 , H04N1/12 , H04N1/23 , B41J2/435 , H04N1/21
CPC分类号： H04N1/053 , B41J2/471 , H04N1/1135 , H04N1/12 , H04N2201/0471
摘要： A laser source unit in which a laser diode is located at a focal point of a Fresnel lens using refraction and diffraction. The laser diode emits a laser beam in accordance with a control signal generated by a driving circuit. The laser diode is driven such that defocus on an image surface caused by a rise in the temperature of the laser diode can be kept in a tolerable degree.
摘要翻译：激光源单元，其中激光二极管使用折射和衍射位于菲涅尔透镜的焦点处。激光二极管根据由驱动电路产生的控制信号发射激光束。激光二极管被驱动，使得由激光二极管的温度升高引起的图像上的散焦可以保持在可容许的程度。

2. 发明授权

US5530579A Laser beam optical scanning device 失效
标题翻译：激光束光学扫描装置
公开(公告)号：US5530579A
公开(公告)日：1996-06-25
申请号：US147723
申请日：1993-11-04
申请人： Hiromu Nakamura , Satoru Ono , Akiyoshi Hamada
发明人： Hiromu Nakamura , Satoru Ono , Akiyoshi Hamada
IPC分类号： G02B26/10 , G02B26/12 , G02B27/00 , G02B26/08
CPC分类号： G02B26/125 , G02B27/0031
摘要： A laser beam optical scanning device which has a laser diode, a collimator lens, a cylindrical lens, a polygonal scanner and an f .theta. lens. The polygonal scanner is made of resin, and when the polygonal scanner is driven to rotate, the reflective facets of the polygonal scanner are distorted to be concave or convex because of a centrifugal force. If the reflective facets are distorted to be concave with rotation of the polygonal scanner, the image surface shifts along the optical axis toward the polygonal scanner. Therefore, in this case, the elements of the optical scanning device are positioned such that the image surface is located behind a light receiving surface while the polygonal scanner is stationary and is located nearer to the light receiving surface while the polygonal scanner is rotating.
摘要翻译：一种具有激光二极管，准直透镜，柱面透镜，多边形扫描仪和fθ透镜的激光束光学扫描装置。多边形扫描器由树脂制成，并且当多边形扫描器被驱动旋转时，由于离心力，多边形扫描仪的反射小面变形为凹形或凸形。如果反射小面通过多边形扫描器的旋转而变形成凹入，则图像表面沿着光轴向多边形扫描器移动。因此，在这种情况下，光扫描装置的元件被定位成使得图像表面位于光接收表面的后面，而多边形扫描器是静止的并且在多边形扫描器旋转的同时位于更靠近受光面的位置。

3. 发明授权

US5212501A Image recording apparatus with a laser optical unit 失效
标题翻译：具有激光光学单元的图像记录装置
公开(公告)号：US5212501A
公开(公告)日：1993-05-18
申请号：US875977
申请日：1992-04-29
申请人： Hiromu Nakamura , Akiyoshi Hamada , Satoru Ono , Masanori Murakami , Toshio Naiki , Kunihiko Omura , Masahito Niikawa
发明人： Hiromu Nakamura , Akiyoshi Hamada , Satoru Ono , Masanori Murakami , Toshio Naiki , Kunihiko Omura , Masahito Niikawa
IPC分类号： G02B5/18 , G02B26/12 , G06K15/12
CPC分类号： G06K15/1219 , G02B26/124 , G02B5/1876 , G06K15/1214
摘要： An image recording apparatus wherein a laser diode which is disposed on a focal point of a micro Fresnel lens emits a laser beam and the laser beam is collimated by the Fresnel lens and scanned on a photosensitive drum by a polygonal mirror and an f.theta. optical system. A change in temperature of the laser diode does not result in such serious defocus as to cause practical problems.
摘要翻译：一种图像记录装置，其中设置在微型菲涅耳透镜的焦点上的激光二极管发射激光束，并且该激光束被菲涅尔透镜准直并且通过多面镜和fθ光学系统在感光鼓上扫描。激光二极管的温度变化不会导致如此严重的散焦，导致实际问题。

4. 发明授权

US5583559A Light beam optical scanning system having an f.theta. mirror 失效
标题翻译：具有fθ镜的光束光学扫描系统
公开(公告)号：US5583559A
公开(公告)日：1996-12-10
申请号：US187341
申请日：1994-01-25
申请人： Hiromu Nakamura , Akiyoshi Hamada
发明人： Hiromu Nakamura , Akiyoshi Hamada
IPC分类号： G02B26/10 , B41J2/47 , G02B26/12
CPC分类号： B41J2/471 , G02B26/126
摘要： A laser beam optical scanning system having a laser diode, a collimator lens, a cylindrical lens, a polygonal mirror and an f.theta. mirror. The f.theta. mirror has a free toric surface whose curvature in the main scanning direction varies in accordance with field angle. The variation of the curvature of the free toric surface is set in accordance with the position of the f.theta. mirror in the optical path, and this appropriate setting of the variation of the curvature enables the f.theta. mirror to correct both distortion and curvature of field in the main scanning direction.
摘要翻译：具有激光二极管，准直透镜，柱面透镜，多面镜和fθ镜的激光束光学扫描系统。 fθ反射镜具有自由的复曲面，其主扫描方向的曲率根据场角而变化。游离复曲面的曲率的变化根据光路中的θθ镜的位置来设定，并且曲率变化的这种适当的设定使得θθ镜能够校正场的变形和曲率在主扫描方向。

5. 发明授权

US5233457A Beam scanning optical system 失效
标题翻译：光束扫描光学系统
公开(公告)号：US5233457A
公开(公告)日：1993-08-03
申请号：US752284
申请日：1991-08-29
申请人： Akiyoshi Hamada , Hiromu Nakamura
发明人： Akiyoshi Hamada , Hiromu Nakamura
IPC分类号： G02B26/12 , G02B27/00
CPC分类号： G02B27/0031 , G02B26/126
摘要： A beam scanning optical system having a semiconductor laser for emitting a light beam; a cylindrical lens for converging the laser beam into a straight line; a polygon mirror for deflecting the laser beam which converged the cylindrical lens at a constant angular velocity; a spherical mirror for collecting the deflected laser beam on a surface of a photosensitive member; and a lens disposed between the polygon mirror and the spherical mirror, the lens having at least one toroidal surface. The lens is so disposed that its beam entrance side and beam exit side are decentered in a direction of the beam scanning, and curvature of the entrance side and curvature of the exit side on a plane of deflection have different centers. The entrance side and the exit side of the lens are a toroidal surface and a spherical surface respectively, and the spherical surface is decentered in a direction perpendicular to the plane of deflection in respect to the toroidal surface. Also, the spherical mirror is decentered in a direction perpendicular to the plane of deflection.
摘要翻译：一种具有用于发射光束的半导体激光器的光束扫描光学系统; 用于将激光束会聚到直线的柱面透镜; 用于偏转以恒定角速度会聚在柱面透镜上的激光束的多面镜; 用于在感光构件的表面上收集偏转的激光束的球面镜; 以及设置在所述多面镜和所述球面镜之间的透镜，所述透镜具有至少一个环形表面。透镜被设置成使得其光束入射侧和光束出射侧在光束扫描的方向上偏心，入射侧的曲率和偏转平面上的出射侧的曲率具有不同的中心。透镜的入射侧和出射侧分别是环形表面和球面，并且球面相对于环形表面在垂直于偏转平面的方向上偏心。此外，球面镜在垂直于偏转平面的方向上偏心。

6. 发明授权

US5353047A Beam scanning optical system 失效
标题翻译：光束扫描光学系统
公开(公告)号：US5353047A
公开(公告)日：1994-10-04
申请号：US795127
申请日：1991-11-20
申请人： Hiromu Nakamura , Akiyoshi Hamada
发明人： Hiromu Nakamura , Akiyoshi Hamada
IPC分类号： G02B26/10 , G02B26/12 , H04N1/113 , B41J2/435
CPC分类号： G02B26/126
摘要： A toroidal mirror reflects a light beam deflected by a deflection device with a mirror plane curved in a scanning direction and leads a spot of the light beam so as to move substantially at a uniform velocity on a light receiving surface.
摘要翻译：环形反射镜反射由偏转装置偏转的光束，其中反射镜平面在扫描方向上弯曲，并且引导光束的光点，以便在光接收表面上基本上以均匀的速度移动。

7. 发明授权

US4583846A Slit exposure type copying machine capable of copying with anamorphic magnification 失效
标题翻译：能够以变形放大复印的狭缝曝光式复印机
公开(公告)号：US4583846A
公开(公告)日：1986-04-22
申请号：US673523
申请日：1984-11-20
申请人： Hiromu Nakamura , Toshihiko Ueda , Haruhiro Hyodo , Muneo Kuroda , Akiyoshi Hamada , Hiroaki Nakauchi , Nobuo Kanai
发明人： Hiromu Nakamura , Toshihiko Ueda , Haruhiro Hyodo , Muneo Kuroda , Akiyoshi Hamada , Hiroaki Nakauchi , Nobuo Kanai
IPC分类号： G03G15/041 , G03B27/68 , G03B27/34 , G03B27/40
CPC分类号： G03G15/041
摘要： A slit exposure type copying machine capable of copying with anamorphic magnification. The degree of the refractive action of at least one triangular prism is so set as to compensate for the difference between the magnification of projection means and the magnification corresponding to the speed of scanning means.
摘要翻译：能够以变形放大复印的狭缝曝光型复印机。至少一个三角棱镜的屈光度的程度被设定为补偿投影装置的倍率与扫描装置的速度对应的放大率之间的差异。

8. 发明授权

US5815301A Scanning optical apparatus 失效
标题翻译：扫描光学仪器
公开(公告)号：US5815301A
公开(公告)日：1998-09-29
申请号：US633377
申请日：1996-04-17
申请人： Toshio Naiki , Akiyoshi Hamada , Yoshihiro Inagaki
发明人： Toshio Naiki , Akiyoshi Hamada , Yoshihiro Inagaki
IPC分类号： G02B26/12 , G02B27/00 , G02B26/08
CPC分类号： G02B27/0031 , G02B26/12
摘要： A scanning optical apparatus for a printer and a digital copying machine has a light source, a deflector, first and second imaging units. The deflector deflects a light beam emitted from the light source to a main scanning direction. The first imaging unit makes the light beam emitted from the light source form an image in the vicinity of the deflection position of said deflector in the sub-scanning direction. The first imaging unit has a first resin lens having a negative refractive power only in a sub-scanning direction. The second imaging unit makes the light beam deflected by the deflector form an image on a scanned surface in the sub-scanning direction. The second imaging unit has a second resin lens having a positive refractive power only in the sub-scanning direction.
摘要翻译：用于打印机和数字复印机的扫描光学装置具有光源，偏转器，第一和第二成像单元。偏转器将从光源发射的光束偏转到主扫描方向。第一成像单元使得从光源发射的光束在副扫描方向上在所述偏转器的偏转位置附近形成图像。第一成像单元具有仅在副扫描方向上具有负折射力的第一树脂透镜。第二成像单元使由偏转器偏转的光束在副扫描方向上在扫描表面上形成图像。第二成像单元具有仅在副扫描方向上具有正折光力的第二树脂透镜。

9. 发明授权

US4722581A Recording apparatus with a semiconductor laser 失效
标题翻译：具有半导体激光器的记录装置
公开(公告)号：US4722581A
公开(公告)日：1988-02-02
申请号：US799915
申请日：1985-11-20
申请人： Akiyoshi Hamada , Katsumi Miwa
发明人： Akiyoshi Hamada , Katsumi Miwa
IPC分类号： G02B26/12 , B41J2/44 , G02B5/00 , G02B27/09 , G06K15/12 , H04N1/036 , G02B26/04
CPC分类号： G02B5/005 , G02B19/0014 , G02B19/0052 , G02B27/09 , G02B27/0988 , G06K15/1204 , H04N1/036
摘要： Disclosed is a recording apparatus having a semiconductor laser producing a laser beam with Gauss distribution and an aperture stop. The aperture stop has a diameter in the direction normal to a junction plane of the semiconductor laser which is adjustable to a suitable value and a diameter in the direction parallel to the junction plane is fixed at a predetermined value. This aperture stop transmits the beam in regulated form with minimum loss of energy propagation efficiency.
摘要翻译：公开了一种具有产生具有高斯分布的激光束和孔径光阑的半导体激光器的记录装置。孔径光阑具有垂直于半导体激光器的结面的方向的直径，该直径可调节到合适的值，并且平行于接合面的方向的直径固定在预定值。该孔径光阑以最小的能量传播效率损失以规定形式发射光束。

10. 发明授权

US5969843A Light source device and light beam scanning optical apparatus 失效
标题翻译：光源装置和光束扫描光学装置
公开(公告)号：US5969843A
公开(公告)日：1999-10-19
申请号：US947266
申请日：1997-10-08
申请人： Toshio Naiki , Akiyoshi Hamada , Yoshihiro Inagaki
发明人： Toshio Naiki , Akiyoshi Hamada , Yoshihiro Inagaki
IPC分类号： B41J2/44 , G02B7/00 , G02B26/10 , G02B26/12 , G03G21/16 , H04N1/113 , G02B26/08
CPC分类号： G02B26/123 , B41J2/473
摘要： A light beam scanning optical apparatus which writes two lines at one scan on a photosensitive member with light beams emitted from two light sources. A light source unit of the apparatus has a first movable retainer block which retains a first laser diode and a second movable retainer block which retains a second laser diode. The second movable retainer block becomes adjustable two-dimensionally on a base block by loosening screws which fit the second movable retainer block to the base block.
摘要翻译：一种光束扫描光学装置，其在由两个光源发射的光束上在一个扫描上在感光构件上写入两条线。该装置的光源单元具有保持第一激光二极管的第一可动保持器块和保持第二激光二极管的第二可移动保持器块。第二可移动保持器块通过松开将第二可移动保持器块配合到基座的螺钉在基座块上二维地调节。

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