公开(公告)号：US4998790A

公开(公告)日：1991-03-12

申请号：US485904

申请日：1990-02-27

申请人： Takashi Iizuka ,  Mitsunori Iima ,  Akira Morimoto

发明人： Takashi Iizuka ,  Mitsunori Iima ,  Akira Morimoto

IPC分类号： G02B26/12

CPC分类号： G02B26/124

摘要： An optical scanning apparatus has a semiconductor laser which produces a divergent beam of light. A collimator lens makes the beam of light parallel, a cylindrical lens shapes the beam, and a polygonal deflector deflects the beam through a scanning lens and onto a rotating drum containing an exposure plane. The amount of light reflected back into the semiconductor laser is reduced by forming a slit either inside of the collimator lens or inside of a housing of the cylindrical lens.

摘要翻译： 光学扫描装置具有产生发散光束的半导体激光器。 准直透镜使光束平行，圆柱形透镜成形光束，并且多边形偏转器将光束通过扫描透镜偏转到包含曝光平面的旋转滚筒上。 通过在准直透镜内部或柱面透镜的壳体内部形成狭缝来减少反射回半导体激光器的光量。

公开(公告)号：US5969347A

公开(公告)日：1999-10-19

申请号：US992812

申请日：1997-12-18

申请人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

发明人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC分类号： B41J2/47 ,  G02B26/12 ,  G06K15/12 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/19 ,  H04N1/192 ,  H01J3/14

CPC分类号： G02B26/123 ,  B41J2/473 ,  G06K15/1204 ,  H04N1/0473 ,  H04N1/19 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/192 ,  H04N2201/0471 ,  H04N2201/04755

摘要： A cascade scanning optical system which includes: a first laser scanning optical system having a first polygon mirror, provided with a plurality of first reflecting surfaces, for deflecting a first scanning laser beam to scan a part of a scanning surface to generate a first scanning line; a second laser scanning optical system having a second polygon mirror, provided with a plurality of second reflecting surfaces, for deflecting a second scanning laser beam to scan another part of the scanning surface to generate a second scanning line, wherein the first and second laser scanning optical systems are arranged so as to align the first scanning line with the second scanning line at a point of contact therebetween in a main scanning direction to form a single scanning line; means for measuring a degree of tilt of each of the plurality of first reflecting surfaces and the plurality of second reflecting surfaces; and means for determining combinations of the plurality of first reflecting surfaces with the plurality of second reflecting surfaces in accordance with results of measurements of the measuring means so that the single scanning line is formed by any one of the combinations while minimizing a phase difference between a first phase formed by degrees of tilt of the plurality of first reflecting surfaces and a second phase formed by degrees of tilt of the plurality of the second reflecting surfaces.

摘要翻译： 一种级联扫描光学系统，其包括：第一激光扫描光学系统，具有设置有多个第一反射面的第一多面镜，用于偏转第一扫描激光束以扫描扫描表面的一部分以产生第一扫描线 ; 第二激光扫描光学系统，具有设置有多个第二反射表面的第二多面反射镜，用于偏转第二扫描激光束以扫描扫描表面的另一部分以产生第二扫描线，其中第一和第二激光扫描 光学系统布置成使得第一扫描线与第二扫描线在主扫描方向上的接触点处对准以形成单个扫描线; 用于测量所述多个第一反射表面和所述多个第二反射表面中的每一个的倾斜度的装置; 以及用于根据测量装置的测量结果确定多个第一反射表面与多个第二反射表面的组合的装置，使得单个扫描线由组合中的任何一个形成，同时最小化 所述第一相通过所述多个第一反射面的倾斜度和由所述多个所述第二反射面的倾斜度而形成的第二相形成。

公开(公告)号：US5903377A

公开(公告)日：1999-05-11

申请号：US1559

申请日：1997-12-31

申请人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

发明人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC分类号： B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/19 ,  H04N1/192 ,  G02B26/08

CPC分类号： H04N1/053 ,  G02B26/12 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/19 ,  H04N1/192 ,  H04N2201/0471 ,  H04N2201/04786

摘要： Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first scanning optical system for deflecting a first scanning laser beam to scan a scanning surface; a second scanning optical system for deflecting a second scanning laser beam to scan the scanning surface, wherein each of the first and second scanning optical systems is a telecentric system; a beam splitter positioned such that a first portion of the first scanning laser beam which has been reflected by the beam splitter and a first portion of the second scanning laser beam which has passed through the beam splitter proceed to the scanning surface on a common line thereon extending in a main scanning direction in respective different adjacent ranges of the common line to generate a single scanning line on the scanning surface by a combination of the first portion of the first scanning laser beam and the first portion of the second scanning laser beam; and a first laser beam detector fixed at a position to detect a second portion of the first scanning laser beam which has passed through the beam splitter and a second portion of the second scanning laser beam which has been reflected by the beam splitter when the first and second laser beams start scanning the respective different adjacent rang of the common line.

摘要翻译： 公开了一种具有级联扫描光学系统的扫描装置。 扫描装置包括：第一扫描光学系统，用于偏转第一扫描激光束以扫描扫描表面; 用于偏转第二扫描激光束扫描扫描表面的第二扫描光学系统，其中第一和第二扫描光学系统中的每一个是远心系统; 分束器，其被定位成使得已经被分束器反射的第一扫描激光束的第一部分和已经通过分束器的第二扫描激光束的第一部分在其上的公共线上前进到扫描表面 在公共线的各个不同相邻范围内沿主扫描方向延伸，通过第一扫描激光束的第一部分和第二扫描激光束的第一部分的组合在扫描表面上产生单个扫描线; 以及第一激光束检测器，其固定在检测已经通过所述分束器的所述第一扫描激光束的第二部分和所述第二扫描激光束的第二部分的位置，所述第二扫描激光束当所述第一和第二扫描激光束被所述第一和第二扫描激光束反射时， 第二激光束开始扫描公共线的各个不同相邻的范围。

公开(公告)号：US5867299A

公开(公告)日：1999-02-02

申请号：US917475

申请日：1997-08-26

申请人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

发明人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC分类号： B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/113 ,  H04N1/12 ,  H04N1/192 ,  G02B26/08

CPC分类号： G02B26/12 ,  H04N1/192 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0426 ,  H04N2201/04729

摘要： A cascade scanning optical system which includes a plurality of laser scanning optical systems each emitting a laser beam to scan a surface of a member, and a beam splitter positioned in an optical path between the plurality of laser scanning optical systems and the member such that a first laser beam which has passed through the beam splitter and a second laser beam which has been reflected by the beam splitter proceed to the surface on a common line thereon in respective ranges of the common line. Each of the plurality of laser scanning optical systems is desinged as a telecentric system.

摘要翻译： 一种级联扫描光学系统，其包括多个激光扫描光学系统，每个激光扫描光学系统发射激光束以扫描部件的表面;以及分束器，其位于所述多个激光扫描光学系统和所述部件之间的光路中，使得 已经通过分束器的第一激光束和被分束器反射的第二激光束在公共线的相应范围内前进到公共线上的表面。 多个激光扫描光学系统中的每一个被设计为远心系统。

公开(公告)号：US5909300A

公开(公告)日：1999-06-01

申请号：US1560

申请日：1997-12-31

申请人： Yoshiyuki Araki ,  Masatoshi Takano ,  Shinji Kikuchi ,  Tsutomu Sato ,  Eiji Takasugi ,  Takashi Sasaki ,  Mitsunori Iima ,  Takashi Iizuka

发明人： Yoshiyuki Araki ,  Masatoshi Takano ,  Shinji Kikuchi ,  Tsutomu Sato ,  Eiji Takasugi ,  Takashi Sasaki ,  Mitsunori Iima ,  Takashi Iizuka

IPC分类号： G02B26/12 ,  H04N1/113 ,  G02B26/08

CPC分类号： H04N1/1135 ,  G02B26/12

摘要： Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first laser scanning optical system for deflecting a first scanning laser beam to scan a scanning surface to generate a first scanning line; a second laser scanning optical system for deflecting a second scanning laser beam to scan the scanning surface to generate a second scanning line, wherein the first and second laser scanning optical systems are arranged so as to align the first scanning line with the second scanning line in a main scanning direction to form a single scanning line, with opposing ends of the first and second scanning lines overlapping each other by a predetermined amount; and a device for delaying the commencement of the writing of each scanning line made by the second laser scanning optical system with respect to the commencement of the writing of each scanning line made by the first laser scanning optical system so as to align the first scanning line with the second scanning line at a point of contact therebetween in the main scanning direction without the first scanning line overlapping the second scanning line.

摘要翻译： 公开了一种具有级联扫描光学系统的扫描装置。 扫描装置包括：第一激光扫描光学系统，用于偏转第一扫描激光束扫描扫描表面以产生第一扫描线; 第二激光扫描光学系统，用于偏转第二扫描激光束以扫描扫描表面以产生第二扫描线，其中所述第一和第二激光扫描光学系统被布置为将所述第一扫描线与所述第二扫描线对准 形成单扫描线的主扫描方向，第一扫描线和第二扫描线的相对端彼此重叠预定量; 以及用于延迟由第二激光扫描光学系统对由第一激光扫描光学系统制成的每条扫描线的写入的开始而开始写入每条扫描线的装置，以使第一扫描线对准 其中第二扫描线在主扫描方向上的接触点处，而第一扫描线不与第二扫描线重叠。

公开(公告)号：US5903378A

公开(公告)日：1999-05-11

申请号：US001561

申请日：1997-12-31

申请人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

发明人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC分类号： B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/192 ,  G02B26/08

CPC分类号： H04N1/053 ,  G02B26/12 ,  H04N1/1135 ,  H04N1/192 ,  H04N2201/0471 ,  H04N2201/04786

摘要： Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first laser scanning optical system for deflecting a first scanning laser beam to scan a scanning surface to generate a first scanning line during modulation of the first scanning laser beam in accordance with first given image data; a second laser scanning optical system for deflecting a second scanning laser beam to scan the scanning surface to generate a second scanning line during modulation of the second scanning laser beam in accordance with second given image data, wherein the first and second laser scanning optical systems are arranged so as to align the first scanning line with the second scanning line at a point of contact therebetween in a main scanning direction to form a single scanning line; a first laser beam detector fixed at a position to detect the first scanning laser beam before the first scanning laser beam starts generating the first scanning line; a second laser beam detector fixed at a position to detect the first scanning laser beam after the first scanning laser beam has completed generating the first scanning line; a measuring device for measuring a time interval; a determining device for determining a time-delay interval; and an adjusting device for adjusting the time at which the first scanning line starts to be generated, in accordance with the time-delay interval.

摘要翻译： 公开了一种具有级联扫描光学系统的扫描装置。 扫描装置包括：第一激光扫描光学系统，用于根据第一给定图像数据偏转第一扫描激光束扫描扫描表面以在第一扫描激光束的调制期间产生第一扫描线; 第二激光扫描光学系统，用于根据第二给定图像数据偏转第二扫描激光束扫描扫描表面以在第二扫描激光束的调制期间产生第二扫描线，其中第一和第二激光扫描光学系统是 排列成使得第一扫描线与第二扫描线在主扫描方向上的接触点处对准，以形成单条扫描线; 第一激光束检测器，固定在第一扫描激光束开始产生第一扫描线之前检测第一扫描激光束的位置; 第二激光束检测器，固定在第一扫描激光束完成后检测第一扫描激光束的位置，产生第一扫描线; 用于测量时间间隔的测量装置; 用于确定时间延迟间隔的确定装置; 以及调整装置，用于根据时间延迟间隔来调整开始生成第一扫描线的时间。

公开(公告)号：US5825522A

公开(公告)日：1998-10-20

申请号：US921466

申请日：1997-09-02

申请人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

发明人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC分类号： B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/113 ,  G02B26/08

CPC分类号： H04N1/1135 ,  G02B26/12

摘要： A cascade scanning optical system which includes a first laser scanning optical system for emitting a first laser beam to scan a surface of a member to generate a first scanning line, and a second laser scanning optical system for emitting a second laser beam to scan the surface to generate a second scanning line, wherein the first and second laser scanning optical systems are arranged so as to combine the first scanning line with the second scanning line at a point of contact therebetween in a main scanning direction to form a single scanning line, and wherein each of the first and second laser scanning optical systems is designed as a non-telecentric system through which the incident angle of a corresponding one of the first and second laser beams relative to the surface varies in accordance with a variation in the position of a scanning spot of the corresponding one of the first and second laser beams on the surface in the main scanning direction, and further wherein an incident angle of each of the first and second laser beams relative to the surface in the vicinity of the point of contact is predetermined to be larger than an incident angle of the same in the vicinity of a corresponding one of opposite ends of the single scanning line.

摘要翻译： 一种级联扫描光学系统，包括：第一激光扫描光学系统，用于发射第一激光束以扫描部件的表面以产生第一扫描线;以及第二激光扫描光学系统，用于发射第二激光束以扫描所述表面 以产生第二扫描线，其中第一和第二激光扫描光学系统布置成在主扫描方向上在其接触点处组合第一扫描线和第二扫描线以形成单个扫描线，并且 其中所述第一和第二激光扫描光学系统中的每一个被设计为非远心系统，通过所述非远心系统，所述第一和第二激光束中的相应一个激光束相对于所述表面的入射角度根据所述第一和第二激光扫描光学系统的位置的变化而变化 在主扫描方向的表面上的第一和第二激光束中的相应一个的扫描光点，并且其中， 第一和第二激光束中的每一个相对于接触点附近的表面的距离被预定为大于在单个扫描线的相应一个相对端附近的入射角。

公开(公告)号：US5828479A

公开(公告)日：1998-10-27

申请号：US929003

申请日：1997-09-04

申请人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

发明人： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC分类号： G02B26/10 ,  G02B13/00 ,  G02B13/18 ,  G02B26/12 ,  H04N1/113 ,  G02B26/08

CPC分类号： B41J2/473 ,  G02B26/12 ,  H04N1/1135

摘要： A cascade scanning optical system which includes: a pair of laser scanning optical systems each having a laser beam emitter and a laser beam deflector, wherein a laser beam emitted by the laser beam emitter enters the laser beam deflector so that the laser beam deflector deflects the laser beam to scan a surface of a member such that the laser beams proceed to the surface on a common line thereon in respective ranges of the common line; a pair of mirrors respectively provided in the pair of laser scanning optical systems, each of the pair of mirrors being positioned in a corresponding optical path between the laser beam deflector and the member to reflect a laser beam incident thereon toward the surface; a pair of cylindrical lenses having power in a sub-scanning direction, respectively provided in the pair of laser scanning optical systems, each of the pair of cylindrical lenses being positioned in a corresponding optical path between the laser beam emitter and the laser beam deflector; first means for adjusting an angle of at least one of the pair of mirrors relative to the surface; and second means for adjusting a position of at least one of the pair of cylindrical lenses relative to a corresponding one of the laser beam deflectors.

摘要翻译： 一种级联扫描光学系统，其包括：一对激光扫描光学系统，每个具有激光束发射器和激光束偏转器，其中由激光束发射器发射的激光束进入激光束偏转器，使得激光束偏转器偏转 激光束扫描构件的表面，使得激光束在公共线的相应范围内前进到其上的公共线上的表面; 分别设置在一对激光扫描光学系统中的一对反射镜，每对反射镜位于激光束偏转器和构件之间的相应光路中，以反射入射到其上的激光束; 分别设置在该对激光扫描光学系统中的副副扫描方向上具有动力的一对柱面透镜，所述一对柱面透镜中的每一个位于激光束发射器和激光束偏转器之间的相应光路中; 用于调整所述一对反射镜中的至少一个相对于所述表面的角度的第一装置; 以及用于相对于相应的一个激光束偏转器来调节所述一对柱面透镜中的至少一个的位置的第二装置。

公开(公告)号：US5646767A

公开(公告)日：1997-07-08

申请号：US361954

申请日：1994-12-22

申请人： Mitsunori Iima ,  Takashi Iizuka

发明人： Mitsunori Iima ,  Takashi Iizuka

IPC分类号： G02B26/12 ,  G02B27/00 ,  G02B26/08

CPC分类号： G02B26/125 ,  G02B27/0018

摘要： A scanning optical system with a light beam deflected by an optical deflector is scanned on a scanning surface in a main scanning direction through the scanning optical system. The scanning optical system comprises an image forming lens system having a refracting power at least in a direction of the main scanning direction and an optical member having at least one deviated surface whose center of radius of paraxial curvature is deviated from a main scanning plane in a sub-scanning direction which is normal to the main scanning direction. The main scanning plane is defined by a plane that the light beam scans. A light interrupting member for interrupting a ghosting light reflected by external or internal surfaces including the deviated surface in the image forming lens system is provided. The light interrupting member is disposed between the image forming lens system and the scanning surface to prevent ghosting light from reaching to the scanning surface.

摘要翻译： 具有通过光学偏转器偏转的光束的扫描光学系统通过扫描光学系统在主扫描方向的扫描表面上被扫描。 扫描光学系统包括至少在主扫描方向的方向上具有折射力的图像形成透镜系统，以及具有至少一个偏离表面的光学部件，所述偏转表面的近轴曲率半径的中心偏离主扫描平面 与主扫描方向垂直的副扫描方向。 主扫描平面由光束扫描的平面限定。 提供一种用于中断由图像形成透镜系统中的偏离表面包括外部或内部表面反射的重影光的遮光构件。 遮光构件设置在图像形成透镜系统和扫​​描表面之间，以防止重影光到达扫描表面。

公开(公告)号：US5200850A

公开(公告)日：1993-04-06

申请号：US846803

申请日：1992-03-05

申请人： Takashi Iizuka ,  Akira Morimoto

发明人： Takashi Iizuka ,  Akira Morimoto

IPC分类号： G02B26/10 ,  G02B13/08 ,  G02B27/00

CPC分类号： G02B13/08 ,  G02B27/0031

摘要： An anamorphic optical system is provided with an imaging lens group comprising one or more plastic lenses and a single plastic correcting lens disposed on the image plane said of the imaging lens. The focal displacement of the optical system due to temperature changes is kept within the focal depth of the system.

摘要翻译： 变形光学系统设置有包括一个或多个塑料透镜和设置在成像透镜的图像平面上的单个塑料校正透镜的成像透镜组。 由于温度变化引起的光学系统的焦点位移保持在系统的焦深内。