公开(公告)号：US20070115528A1

公开(公告)日：2007-05-24

申请号：US11493672

申请日：2006-07-27

Applicant: Hyung-soo Kim ,  Jae-hwan Yoo ,  Won-ho Seo ,  In-ho Yoon ,  Jong-min Lee ,  Se-tae Kim

Inventor： Hyung-soo Kim ,  Jae-hwan Yoo ,  Won-ho Seo ,  In-ho Yoon ,  Jong-min Lee ,  Se-tae Kim

IPC: G02B26/08

CPC classification number: G02B26/123

Abstract: A multi-beam scanning unit includes a light source having a plurality of light emitting portions, each light emitting portion emitting a laser beam, and a beam deflector deflecting each of the laser beams emitted from the light emitting portions in a main scanning direction of a photosensitive medium. The light emitting portions are arranged in a line on a light exit surface of the light source, and an angle A between a section on a light exit surface of the light source corresponding to a sub-scanning direction that is a direction in which the photosensitive medium moves and a section connecting the light emitting portions satisfies the following inequalities: 0°

Abstract translation: 多光束扫描单元包括具有多个发光部分的光源，发射激光束的每个发光部分以及从发光部分发射的每个激光束在主扫描方向上偏转的光束偏转器 光敏介质。 发光部分在光源的光出射表面上排列成一行，并且在光源的出射表面上的与作为光敏元件的方向的副扫描方向相对应的部分之间的角度A 介质移动和连接发光部分的部分满足以下不等式：0°

公开(公告)号：US20060146895A1

公开(公告)日：2006-07-06

申请号：US11296360

申请日：2005-12-08

Applicant: Jong-min Lee

Inventor： Jong-min Lee

IPC: H01S3/13

CPC classification number: H01S5/0683 ,  H01S5/042

Abstract: Provided is an apparatus for controlling a laser output comprising a common-anode laser diode having a first light emitting and receiving units and a common-cathode laser diode having a second light emitting and receiving units. Further, the apparatus comprises an automatic power controller (APC) that operates in either one of two modes. In the first mode the APC controls the amount of light emitted from the first light emitting unit by comparing a first feedback voltage corresponding to an amount of light received by the first light receiving unit and a reference voltage. In the second mode, the APC controls the amount of light emitted from the second light emitting unit by comparing a second feedback voltage corresponding to an amount of light received by the second light receiving unit and a reference voltage. Still further, the apparatus comprises a switching unit which connects the APC and the common-anode laser diode and the apparatus comprises a bias direction forming unit which forms a bias direction between the switching unit and the common-cathode laser diode.

Abstract translation: 提供一种用于控制激光输出的装置，包括具有第一发光和接收单元的共阳极激光二极管和具有第二发光和接收单元的共阴极激光二极管。 此外，该装置包括以两种模式中的任一种工作的自动功率控制器（APC）。 在第一模式中，APC通过比较与由第一光接收单元接收的光量相对应的第一反馈电压和参考电压来控制从第一发光单元发射的光量。 在第二模式中，APC通过比较与由第二光接收单元接收的光量相对应的第二反馈电压和参考电压来控制从第二发光单元发射的光量。 此外，该装置包括连接APC和共阳极激光二极管的开关单元，该装置包括在开关单元和共阴极激光二极管之间形成偏置方向的偏置方向形成单元。