公开(公告)号：US5969843A

公开(公告)日：1999-10-19

申请号：US947266

申请日：1997-10-08

Applicant: Toshio Naiki ,  Akiyoshi Hamada ,  Yoshihiro Inagaki

Inventor： Toshio Naiki ,  Akiyoshi Hamada ,  Yoshihiro Inagaki

IPC: B41J2/44 ,  G02B7/00 ,  G02B26/10 ,  G02B26/12 ,  G03G21/16 ,  H04N1/113 ,  G02B26/08

CPC classification number: G02B26/123 ,  B41J2/473

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5583559A

公开(公告)日：1996-12-10

申请号：US187341

申请日：1994-01-25

Applicant: Hiromu Nakamura ,  Akiyoshi Hamada

Inventor： Hiromu Nakamura ,  Akiyoshi Hamada

IPC: G02B26/10 ,  B41J2/47 ,  G02B26/12

CPC classification number: B41J2/471 ,  G02B26/126

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5294945A

公开(公告)日：1994-03-15

申请号：US66504

申请日：1993-05-24

Applicant: Kunihiko Omura ,  Akiyoshi Hamada ,  Satoru Ono ,  Hiromu Nakamura

Inventor： Kunihiko Omura ,  Akiyoshi Hamada ,  Satoru Ono ,  Hiromu Nakamura

IPC: B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23 ,  B41J2/435 ,  H04N1/21

CPC classification number: H04N1/053 ,  B41J2/471 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4940310A

公开(公告)日：1990-07-10

申请号：US356879

申请日：1989-05-25

Applicant: Akiyoshi Hamada

Inventor： Akiyoshi Hamada

IPC: G02B26/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12

CPC classification number: H04N1/053 ,  G02B26/123 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04786

Abstract: An optical scanning device having a first optical beam source for exciting a first optical beam to be modulated based on an image signal, a beam scanning device having a reflecting face for scanning the first optical beam on a photosensitive face, a second optical beam source for exciting a second optical beam for generating a modulation start signal for the first optical beam and a light receiving element for receiving the second optical beam having been reflected by the beam scanning device. The second optical beam source is arranged so as to prevent its reflected optical beam when scanned by the beam scanning device from being directed toward the photosensitive face. Having detected the second optical beam, the light receiving element generates a signal for starting the modulation of the first optical beam.

Abstract translation: 一种具有用于基于图像信号激发待调制的第一光束的第一光束源的光学扫描装置，具有用于在感光面上扫描第一光束的反射面的光束扫描装置，用于在感光面上扫描第一光束的第二光束源 激励用于产生第一光束的调制开始信号的第二光束和用于接收由光束扫描装置反射的第二光束的光接收元件。 第二光束源被布置成当由光束扫描装置扫描时防止其反射光束被指向感光面。 在检测到第二光束之后，光接收元件产生用于开始第一光束的调制的信号。

公开(公告)号：US4891653A

公开(公告)日：1990-01-02

申请号：US185904

申请日：1988-04-25

Applicant: Akiyoshi Hamada ,  Mitsutoshi Yagoto

Inventor： Akiyoshi Hamada ,  Mitsutoshi Yagoto

IPC: G01D15/14 ,  G03D13/00

CPC classification number: G03D13/002 ,  G01D15/14

Abstract: An image forming apparatus for forming in series a plurality of images on a photosensitive film of the long roll type having a film transporting mechanism using a stepping motor, a microstep driver for controllably driving the stepping motor in a plurality of microsteps constituting one step unit of the stepping motor and an imaging device for forming an image on the film being transported by the film transporting mechanism. According to this image forming apparatus, variations in the film transport start positions resulting from the microstep-wise drive are avoided either by the film transporting mechanism arranged such that a pitch between adjacent images to be formed in series on the film is a multiple of an integer of a film transport distance covered by the single step unit of the stepping motor, or by an initial control device for re-setting the stepping motor to a stop position thereof assumed at completion of a previous imaging operation before re-energizing the stepping motor for a next imaging operation.

Abstract translation: 一种用于在长辊型感光膜上串联形成多个图像的图像形成装置，该图像形成装置具有使用步进电机的胶片传送机构，微步进驱动器，用于以多个微步进的方式驱动步进电机， 步进电机和用于在胶片传送机构传送的胶片上形成图像的成像装置。 根据该图像形成装置，通过薄膜传送机构避免由微步驱动产生的胶片传送开始位置的变化，使得要在胶片上串联形成的相邻图像之间的间距为 由步进电动机的单步单元覆盖的胶片传送距离的整数，或者通过用于将步进电机重新设定到其停止位置的初始控制装置，其在先前的成像操作完成之前被重新通电， 用于下一次成像操作。

公开(公告)号：US5815301A

公开(公告)日：1998-09-29

申请号：US633377

申请日：1996-04-17

Applicant: Toshio Naiki ,  Akiyoshi Hamada ,  Yoshihiro Inagaki

Inventor： Toshio Naiki ,  Akiyoshi Hamada ,  Yoshihiro Inagaki

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

CPC classification number: G02B27/0031 ,  G02B26/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5530579A

公开(公告)日：1996-06-25

申请号：US147723

申请日：1993-11-04

Applicant: Hiromu Nakamura ,  Satoru Ono ,  Akiyoshi Hamada

Inventor： Hiromu Nakamura ,  Satoru Ono ,  Akiyoshi Hamada

IPC: G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  G02B26/08

CPC classification number: G02B26/125 ,  G02B27/0031

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5212501A

公开(公告)日：1993-05-18

申请号：US875977

申请日：1992-04-29

Applicant: Hiromu Nakamura ,  Akiyoshi Hamada ,  Satoru Ono ,  Masanori Murakami ,  Toshio Naiki ,  Kunihiko Omura ,  Masahito Niikawa

Inventor： Hiromu Nakamura ,  Akiyoshi Hamada ,  Satoru Ono ,  Masanori Murakami ,  Toshio Naiki ,  Kunihiko Omura ,  Masahito Niikawa

IPC: G02B5/18 ,  G02B26/12 ,  G06K15/12

CPC classification number: G06K15/1219 ,  G02B26/124 ,  G02B5/1876 ,  G06K15/1214

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4722581A

公开(公告)日：1988-02-02

申请号：US799915

申请日：1985-11-20

Applicant: Akiyoshi Hamada ,  Katsumi Miwa

Inventor： Akiyoshi Hamada ,  Katsumi Miwa

IPC: G02B26/12 ,  B41J2/44 ,  G02B5/00 ,  G02B27/09 ,  G06K15/12 ,  H04N1/036 ,  G02B26/04

CPC classification number: G02B5/005 ,  G02B19/0014 ,  G02B19/0052 ,  G02B27/09 ,  G02B27/0988 ,  G06K15/1204 ,  H04N1/036

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5943153A

公开(公告)日：1999-08-24

申请号：US947745

申请日：1997-10-09

Applicant: Toshio Naiki ,  Akiyoshi Hamada ,  Yoshihiro Inagaki

Inventor： Toshio Naiki ,  Akiyoshi Hamada ,  Yoshihiro Inagaki

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

CPC classification number: G02B26/12 ,  G02B27/0031

Abstract: A scanning optical apparatus has a convex cylindrical lens and a concave cylindrical lens between a light source for emitting a light beam and a polygon mirror. The cylindrical lenses condense the light beam in the vicinity of a deflecting surface of the polygon mirror only in the sub-scanning direction. The cylindrical lenses are held by a lens barrel to form one unit, and the lens barrel is mounted on a V groove formed in a base. The position of the unit having the cylindrical lenses is adjustable along the optical axis, and the rotational angle of the unit is adjustable about the optical axis.

Abstract translation: 扫描光学装置在用于发射光束的光源和多面镜之间具有凸柱面透镜和凹柱面透镜。 柱面透镜仅在副扫描方向上将多个反射镜的偏转表面附近的光束进行冷凝。 柱面透镜由镜筒保持以形成一个单元，并且透镜镜筒安装在形成在基座中的V形凹槽上。 具有柱面透镜的单元的位置可沿着光轴调节，并且该单元的旋转角度可围绕光轴调节。