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    • 8. 发明公开
    • 광 주사 장치 및 화상 형성 장치
    • 光扫描系统和图像形成装置
    • KR1020080114348A
    • 2008-12-31
    • KR1020070063814
    • 2007-06-27
    • 삼성전자주식회사
    • 박기성
    • G02B26/10
    • G02B26/125B41J2/473G02B13/0005
    • An optical scanning apparatus and an image forming apparatus are provided to improve assembly and mass production by minimizing influence by a reflective mirror in movement for assembly of a f-theta lens. An optical scanning apparatus comprises light sources(110,120), a deflector and f-theta lenses. The deflector(115) deflects the light irradiated from a light source. The f-theta lenses(116,126) images the light deflected by the deflector on sensitization media. The light irradiated from the light source is income to be inclined toward the vertical of the rotational axis of the deflector. The f-theta lens satisfies a conditional expression(-0.5
    • 提供了一种光学扫描装置和图像形成装置,以通过最小化用于组装f-θ透镜的运动中的反射镜的影响来改善装配和批量生产。 光学扫描装置包括光源(110,120),偏转器和f-theta透镜。 偏转器(115)偏转从光源照射的光。 f-theta透镜(116,126)将由偏转器偏转的光成像在致敏介质上。 从光源照射的光的收入倾向于偏转器的旋转轴线的垂直方向。 f-θ透镜满足条件表达式(-0.5
    • 10. 发明授权
    • TWO-DIMENSIONAL SURFACE EMITTING LASER ARRAY, MULTI-BEAM SCANNING UNIT EMPLOYING THE SAME AND IMAGE FORMING APPARATUS EMPLOYING THE MULTI-BEAM SCANNING UNIT
    • 二维表面发射激光阵列,使用其的多光束扫描单元和使用多光束扫描单元的图像形成装置
    • KR100754215B1
    • 2007-09-03
    • KR20060033212
    • 2006-04-12
    • SAMSUNG ELECTRONICS CO LTD
    • PARK GI SUNG
    • G02B26/10
    • B41J2/473H01S5/423
    • A two-dimensional surface emitting laser array, a multi-beam scanning unit, and an image forming device employing the same are provided to apply the two-dimensional surface emitting laser array to an optical system having two kinds of sub scanning magnifications or resolutions by making the rotational angle of the laser array different. A two-dimensional surface emitting laser array(10) for scanning plural laser beams at regular intervals in the sub scanning direction of a photo conductor(50) comprises the nxm number of surface emitting lasers(15) having the n number of surface emitting lasers aligned on a base line at regular intervals and the m number of surface emitting lasers inclined for the base line at the predetermined angle respectively and aligned at regular intervals on the n number of inclined lines crossing the n number of surface emitting lasers, respectively. The following variables of a, b, Theta, and Phi satisfy the following formula, cosPhi=P2/P1, cot Theta=tanPhi/2, a=mxP1, and b= P1/cosPhi. Accordingly, plural first scanning lines(L11,L12,L13,L14) and plural second scanning lines are formed selectively. The first scanning lines are separated at first sub scanning pitches. The second scanning lines are separated at second sub scanning pitches with the width different from that of the first sub scanning pitch. n and m are a positive number over 2. The Phi is the included angle between the first and second scanning lines.
    • 提供二维表面发射激光器阵列,多光束扫描单元和使用该二维表面发射激光器阵列的图像形成装置,以将二维表面发射激光器阵列应用于具有两种副扫描放大率或分辨率的光学系统 使激光器阵列的旋转角度不同。 用于在光导体(50)的副扫描方向上以规则间隔扫描多个激光束的二维表面发射激光器阵列(10)包括n×m个具有n个表面发射激光器的表面发射激光器(15) 在基线上以规则的间隔排列,并且m个表面发射激光器以预定角度分别倾斜到基线,并且分别以与n个表面发射激光器交叉的n个倾斜线上的规则间隔对准。 a,b,Theta和Phi的以下变量满足以下公式:cosPhi = P2 / P1,cot Theta = tanPhi / 2,a = mxP1,b = P1 / cosPhi。 因此,选择性地形成多条第一扫描线(L11,L12,L13,L14)和多条第二扫描线。 第一扫描线在第一副扫描间距处分离。 第二扫描线在第二副扫描间距处分开,宽度不同于第一副扫描间距的宽度。 n和m是2以上的正数.Pi是第一和第二扫描线之间的夹角。