公开(公告)号：US3654624A

公开(公告)日：1972-04-04

申请号：US3654624D

申请日：1969-03-17

Applicant: PRECISION INSTR CO

Inventor： BECKER CARL H ,  DELL HAROLD R ,  FRENCH BALLARD D ,  HASHIGUCHI MASAO ,  MCFARLAND KEITH E ,  WONG HERMAN

IPC: G06K1/12 ,  G06K17/00 ,  G11B7/0025 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11C13/04 ,  G01D15/14 ,  G01D15/28

CPC classification number: G11B20/18 ,  G06K1/126 ,  G06K17/00 ,  G06K17/0009 ,  G11B7/0025 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B20/10527 ,  G11B20/12 ,  G11B2007/13727

Abstract: A laser recording system for scanning a modulated laser beam in spaced parallel lines across a flat elongated strip of energy absorbing material and for ablating minute regions from the material in a linear pattern representing digital bits according to the intensity of the modulating signal. The flat elongated record strip is wound around the surface of a drum during the recording and reproducing operations and the drum is rotated with respect to the laser beam. By means of a servo-controlled linear positioning mechanism, the laser beam is moved transversely to the direction of drum rotation in a manner which will permit selection of any one of a large number of spaced parallel scan lines on the record strip. The final positioning of the laser beam to the selected scan line is performed by a servo-controlled mirror galvanometer mounted on the linear positioning mechanism carriage.

Abstract translation: 一种激光记录系统，用于沿平行的能量吸收材料带间隔开的平行线扫描经调制的激光束，并根据调制信号的强度以表示数字位的线性图形从材料中消除微小区域。 在记录和再现操作期间，平坦的细长记录条缠绕在鼓的表面上，并且鼓相对于激光束旋转。 通过伺服控制的线性定位机构，激光束以允许选择记录条上的大量间隔开的平行扫描线中的任何一个的方式横向于鼓旋转方向移动。 激光束到所选择的扫描线的最终定位由安装在线性定位机构托架上的伺服控制的镜式电流计进行。