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。

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。

公开(公告)号：US5943153A

公开(公告)日：1999-08-24

申请号：US947745

申请日：1997-10-09

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： G02B26/12 ,  G02B27/0031

摘要： 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.

摘要翻译： 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。

公开(公告)号：US6137616A

公开(公告)日：2000-10-24

申请号：US351886

申请日：1999-07-13

申请人： Yoshihiro Inagaki ,  Akiyoshi Hamada ,  Toshio Naiki

发明人： Yoshihiro Inagaki ,  Akiyoshi Hamada ,  Toshio Naiki

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/123

摘要： A multi-beam optical scanning device capable of suppressing jitter at the image edges within allowable tolerance by satisfying the following equation: ##EQU1## Where r represents the radius of photosensitive member (mm); .alpha. represents the maximum value of the angle obtained by subtracting the angle formed by the light beam and the scanned line on the surface of the photosensitive member from 90 degrees; D represents the distance (mm) on the surface of the photosensitive member between the light beam condensing position on the furthermost upstream side and the condensing position on the furthermost downstream side in the direction of rotation of the photosensitive member.

摘要翻译： 一种多光束光学扫描装置，其能够通过满足以下等式来抑制图像边缘处的抖动：容许公差：其中r表示感光体的半径（mm）; α表示通过将光束和感光构件表面上的扫描线形成的角度从90度减去所获得的角度的最大值; D表示感光构件表面上最远的上游侧的光束聚光位置与感光构件的旋转方向最下游侧的聚光位置之间的距离（mm）。

公开(公告)号：US6101018A

公开(公告)日：2000-08-08

申请号：US66515

申请日：1998-04-24

申请人： Toshio Naiki ,  Yoshihiro Inagaki ,  Akiyoshi Hamada

发明人： Toshio Naiki ,  Yoshihiro Inagaki ,  Akiyoshi Hamada

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/123

摘要： A light beam scanning optical apparatus in which is capable of switching over the image density. The light beam scanning optical apparatus comprises a light source unit having at least three light emitting points, a control circuit block which selects and lights the light emitting points for switching over the image density at least either between different pages or within one page, an optical deflector for deflecting light beams emitted from the light emitting points, a scanning surface, a first optical system placed between the laser diode array and the optical deflector, and a second optical system placed between the optical deflector and the scanning surface. For switching over the image density, light emitting points corresponding to a specified image density are selected and lighted by the control circuit block. Thus, the switchover of image density in the direction of sub scanning is implemented not by mechanical operation of relatively slow response, but by electrical operation of quick response with selection of light emitting points.

摘要翻译： 一种能够切换图像浓度的光束扫描光学装置。 光束扫描光学装置包括具有至少三个发光点的光源单元，控制电路块，其选择并点亮发光点，用于切换不同页面之间或在一页内的至少一个图像浓度，光学 用于偏转从发光点发射的光束的偏转器，扫描表面，放置在激光二极管阵列和光学偏转器之间的第一光学系统，以及放置在光学偏转器和扫描表面之间的第二光学系统。 为了切换图像浓度，选择与指定的图像浓度对应的发光点，并由控制电路块点亮。 因此，副扫描方向上的图像浓度的切换不是通过相对慢的响应的机械操作而是通过选择发光点的快速响应的电气操作来实现的。

公开(公告)号：US6034806A

公开(公告)日：2000-03-07

申请号：US37014

申请日：1998-03-09

申请人： Yoshihiro Inagaki ,  Akiyoshi Hamada ,  Toshio Naiki

发明人： Yoshihiro Inagaki ,  Akiyoshi Hamada ,  Toshio Naiki

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/123

摘要： A light beam scanning optical apparatus is provided which simultaneously converges a plurality of light beams on different locations in a scanning surface and thereby simultaneously writes a plurality of lines in one scanning operation. The light beam scanning optical apparatus comprises a light source having three or more light emitting points, and a converging lens which shapes light beams emitted from the light source, into generally parallel or convergent bundles of rays. The converging lens has a shape generally symmetrical with respect to the optical axis, and the light emitting points on the light source are disposed on a circle having its center generally on the optical axis. Alternatively, the light source comprises a first light source having one light emitting point, a second light source having a plurality of light emitting points, and a light beam coupling device for unifying the directions of travel of light beams emitted from the first and second light sources. Scanning with light beams of which the number is n and which have been emitted from the light source is simultaneously performed at unequal intervals with respect to the direction of sub scanning on the scanning surface, and then the following relational expressions hold:h.sub.i mod n.noteq.0h.sub.i mod n.noteq.h.sub.j mod n(2.ltoreq.i.ltoreq.n, 2.ltoreq.j.ltoreq.n, i.noteq.j)wherein h.sub.k (2.ltoreq.k.ltoreq.n) is the position where the kth light beam from the front extremity of an image is condensed, which position is measured with respect to the position where the first light beam from the front extremity of the image is converged on the scanning surface, and which position is expressed in units of the interval between scanning lines required by a given image density on the scanning surface, and wherein mod is an operator for finding the remainder in the case that h.sub.i or h.sub.j is divided by n.

摘要翻译： 提供一种光束扫描光学装置，其同时在扫描表面上将多个光束会聚在不同位置，从而在一次扫描操作中同时写入多条线。 光束扫描光学装置包括具有三个或更多个发光点的光源和将从光源发射的光束成形为大致平行或会聚的光束的会聚透镜。 会聚透镜具有相对于光轴大致对称的形状，并且光源上的发光点设置在其中心大致在光轴上的圆上。 或者，光源包括具有一个发光点的第一光源，具有多个发光点的第二光源，以及用于统一从第一和第二光发射的光束的行进方向的光束耦合装置 来源。 相对于扫描面上的副扫描方向以不等间隔同时进行数量为n且已经从光源发射的光束的扫描，然后以下关系式成立：hi mod n NOTEQUAL 其中hk（2）=（i，i，i，i，i，i） 来自图像的前端的第k个光束被冷凝，该位置相对于来自图像的前端的第一光束会聚在扫描表面上的位置被测量，并且该位置以 在扫描表面上给定图像浓度所需的扫描行之间的间隔，其中mod是在hi或hj除以n的情况下找到余数的算子。

公开(公告)号：US5890789A

公开(公告)日：1999-04-06

申请号：US972803

申请日：1997-11-18

申请人： Yoshihiro Inagaki ,  Toshio Naiki ,  Akiyoshi Hamada ,  Keiji Ogoh

发明人： Yoshihiro Inagaki ,  Toshio Naiki ,  Akiyoshi Hamada ,  Keiji Ogoh

IPC分类号： G02F1/11 ,  G02F1/33 ,  G02F1/335

CPC分类号： G02F1/113 ,  G02F1/33 ,  G02F1/335

摘要： A multi-beam emitting device which splits a light beam emitted from a light source into a plurality of beams with a beam splitter to emit a plurality of beams. As the beam splitter, an optical waveguide type acoustooptic element or the like is used. A multi-beam emitting device according to the present invention has a beam splitter which drives an acoustooptic element with a plurality of electric signals with different frequencies applied thereto so as to deflect a light beam emitted from a light source and split the light beam into a plurality of beams, a signal generator which generates the electric signals with different frequencies which are used for the drive of the acoustooptic element, a modulating circuit which turns on and off the electric signals generated by the signal generater individually based on a data signal, an intensity control circuit which controls the light source to change the intensity of the light beam emitted therefrom. Another multi-beam emitting device has a beam splitter which deflects a light beam emitted from a light source and splits the light beam into an even number of beams, a shutting member which shuts out a half of the beams, a modulating circuit which controls the beam splitter so that the total quantity of light of the beams which are emergent from the beam splitter and not shut out by the shutting member and the beams which are emergent from the beam splitter and shut out by the shutting member will be constant. Further, in these multi-beam emitting devices, the deflecting position of the light beam and the beam waist position of the light beam are inside the optical waveguide type acoustooptic element at a specified distance from each other.

摘要翻译： 一种多光束发射装置，其用光束分离器将从光源发射的光束分解成多个光束，以发射多个光束。 作为分束器，使用光波导型声光元件等。 根据本发明的多光束发射装置具有分束器，该分束器利用施加到其上的具有不同频率的多个电信号驱动声光元件，以偏转从光源发射的光束并将光束分成 多个光束，产生用于驱动声光元件的具有不同频率的电信号的信号发生器，基于数据信号单独地导通和关断由信号发生器产生的电信号的调制电路， 强度控制电路，其控制光源以改变从其发射的光束的强度。 另一种多光束发射装置具有一个分束器，该光束分离器使从光源发出的光束偏转，并将光束分裂成偶数个光束，一个关闭光束的一半的关闭部件，一个调制电路， 使得从分束器出射并且不被关闭构件遮断的光束和从分束器射出并被关闭构件遮断的光束的总光量将是恒定的。 此外，在这些多光束发射装置中，光束的偏转位置和光束的光束腰部位置在彼此指定距离的光波导型声光元件内。

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。

公开(公告)号：US6021145A

公开(公告)日：2000-02-01

申请号：US932084

申请日：1997-09-17

申请人： Toshio Naiki ,  Akiyoshi Hamada

发明人： Toshio Naiki ,  Akiyoshi Hamada

IPC分类号： H04N1/113 ,  H01S5/00 ,  H01S5/06 ,  H01S5/40 ,  H01S3/18 ,  H01S3/00

CPC分类号： H01S5/4025

摘要： A laser diode array unit for use in laser beam scanning optical apparatus and the like. The laser diode array has plural light emitting sources to be drivingly controlled independently of each other. The laser diode array is so disposed as to permit laser beams emitted from the light emitting sources to be incident to a collimator lens. On an optical axis between the laser diode array and the collimator lens is disposed a beam splitter for splitting the laser beams emitted from the light emitting sources into image light and monitor light. A magnifier lens and a photoreceptor element are arranged on the optical axis so as to allow incidence of monitor light oriented to advance in a direction perpendicular to the direction of advance of image light.

摘要翻译： 用于激光束扫描光学装置等的激光二极管阵列单元。 激光二极管阵列具有彼此独立驱动地控制的多个发光源。 激光二极管阵列被布置成允许从发光源发射的激光束入射到准直透镜。 在激光二极管阵列和准直透镜之间的光轴上设置有用于将从发光源发射的激光束分成图像光并监视光的分束器。 放大镜透镜和感光体元件布置在光轴上，以允许监视光的入射方向朝向与图像光的前进方向垂直的方向前进。

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。