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：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：US5680244A

公开(公告)日：1997-10-21

申请号：US354604

申请日：1994-12-13

申请人： Satoru Ono ,  Toshio Naiki

发明人： Satoru Ono ,  Toshio Naiki

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

CPC分类号： G02B26/125

摘要： A scanning optical system has a deflector and a scanning lens. A convergent beam is deflected at a uniform angular velocity by the deflector. The scanning lens forms the scanned beam into an image on a scanned surface to scan the surface substantially at a uniform velocity. The scanning lens includes from the side of the deflector a negative lens element and at least one more lens element. The convergent beam is incident on a surface of the deflector which faces the deflector. The scanning lens fulfills predetermined conditions.

摘要翻译： 扫描光学系统具有偏转器和扫描透镜。 收敛光束由偏转器以均匀的角速度偏转。 扫描透镜将扫描光束形成扫描表面上的图像，以基本上均匀的速度扫描表面。 扫描透镜从偏转器的一侧包括负透镜元件和至少一个更多的透镜元件。 会聚光束入射到面向导流板的偏转器的表面上。 扫描透镜满足预定条件。

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：US5113291A

公开(公告)日：1992-05-12

申请号：US335042

申请日：1989-04-07

申请人： Toshio Naiki

发明人： Toshio Naiki

IPC分类号： G02B7/00 ,  G02B7/02

CPC分类号： G02B7/004 ,  G02B7/023

摘要： A focus and optical axis adjustment mechanism for a semiconductor laser and a collimator lens is disclosed. A first holding member for holding a semiconductor laser is attached to an intermediate member so that it is movable on a plane vertical to the optical axis of the semiconductor laser. The intermediate member is attached to a second holding member which holds a collimator lens so that it can be bent with a portion near one end thereof as the bending line.

摘要翻译： 公开了一种用于半导体激光器和准直透镜的聚焦和光轴调节机构。 用于保持半导体激光器的第一保持构件附接到中间构件，使得其可以在垂直于半导体激光器的光轴的平面上移动。 中间构件附接到保持准直透镜的第二保持构件，使得其可以以其一端附近的部分作为弯曲线弯曲。

公开(公告)号：US07322224B2

公开(公告)日：2008-01-29

申请号：US10764536

申请日：2004-01-27

申请人： Koji Ohashi ,  Takayoshi Mori ,  Michio Yamada ,  Koji Ooi ,  Hisashi Yasumatsu ,  Toshio Naiki ,  Hiromu Nakamura

发明人： Koji Ohashi ,  Takayoshi Mori ,  Michio Yamada ,  Koji Ooi ,  Hisashi Yasumatsu ,  Toshio Naiki ,  Hiromu Nakamura

IPC分类号： B21D31/00

CPC分类号： B21D22/22

摘要： A drawing method for forming a reflective curved surface by pressing a metal plate fitted in a fixed die with a movable die. The fixed die is composed of a lower die and a core, and the movable die is composed of an upper die and a presser. During the drawing, the metal plate is pressed to have a compressed border portion between a non-pressed portion and a curved surface pressed portion. It is the most desirable to compress the border portion to have a thickness which is 70% of the thickness of the metal plate before drawing.

摘要翻译： 一种用于通过将装配在固定模具中的金属板与可动模具进行加压来形成反射曲面的拉丝方法。 固定模具由下模和芯组成，可动模具由上模和压板构成。 在拉伸过程中，金属板被压制成在非压制部分和曲面压制部分之间具有压缩边界部分。 最优选的是将边缘部分压制成具有在拉丝前金属板厚度的70％的厚度。

公开(公告)号：US06172787B2

公开(公告)日：2001-01-09

申请号：US08835710

申请日：1997-04-10

申请人： Toshio Naiki

发明人： Toshio Naiki

IPC分类号： G02B2608

CPC分类号： H04N1/1916 ,  G02B26/123 ,  G06K15/1261 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911

摘要： A laser beam scanning optical apparatus which images each laser beam emitted from a laser diode array via a deflector and optical elements and scans the laser beam linearly on a scanning surface at a substantially constant speed. The laser diode array has a plurality of light emitting sources arranged two-dimensionally, and more specifically, arranged in a first direction at uniform intervals of P1 and in a second direction perpendicular to the first direction at uniform intervals of P2 which is different from P1. In the laser beam scanning optical apparatus, the magnification ratio in the main scanning direction and the magnification ratio in the sub scanning direction are different from each other. If there are a number m of light emitting sources in each line of the first direction at the intervals of P1 and a number n of light emitting sources in each line of the second direction at the intervals of P2, the first direction is at an angle &thgr; expressed by the following expression to the main scanning direction: &thgr;=tan−1(P2/mP1).

摘要翻译： 一种激光束扫描光学装置，其通过偏转器和光学元件对从激光二极管阵列发射的每个激光束进行成像，并以基本恒定的速度在扫描表面上线性地扫描激光束。 激光二极管阵列具有二维布置的多个发光源，更具体地，以P1的均匀间隔沿第一方向布置，并且在垂直于第一方向的第二方向上以与P1不同的P2的均匀间隔 。 在激光束扫描光学装置中，主扫描方向的放大率和副扫描方向的放大率彼此不同。 如果在P1的间隔处以第一方向的每一行中的m个发光源和在第二方向的每一行的发光源的数量n以P2的间隔存在数量m的发光源，则第一方向成角度 θ由主扫描方向的以下表达式表示：