Laser printing device with control of oscillation amplitude
    3.
    发明授权
    Laser printing device with control of oscillation amplitude 失效
    具有振荡幅度控制的激光打印装置

    公开(公告)号:US5218377A

    公开(公告)日:1993-06-08

    申请号:US689575

    申请日:1991-04-23

    摘要: In a laser printing device in which a laser beam is deflected in a scanning mode while its intensity is being modulated, to record a halftone image on an optical recording material, the scanning laser beam is oscillated in a direction substantially perpendicular to the scanning direction within one pitch of the scanning line formed on the optical recording material, and the oscillation of the scanning laser beam is changed in amplitude by a signal provided by a computer, whereby a halftone image is recorded with high accuracy.

    摘要翻译: 在激光打印装置中,其激光束在其强度被调制时以扫描模式偏转,将半色调图像记录在光学记录材料上,扫描激光束在基本上垂直于扫描方向的方向上振荡, 形成在光学记录材料上的扫描线的一个间距,并且扫描激光束的振荡通过计算机提供的信号在幅度上变化,由此以高精度记录半色调图像。

    Laser beam scanning apparatus and method providing controllable print
density
    6.
    发明授权
    Laser beam scanning apparatus and method providing controllable print density 失效
    激光束扫描装置和提供可控打印密度的方法

    公开(公告)号:US5995130A

    公开(公告)日:1999-11-30

    申请号:US685560

    申请日:1996-07-24

    摘要: A laser beam scanning apparatus and method for providing controllable print density. The laser beam scanning apparatus includes a modulator for modulating a light beam, a rotating polygon mirror for deflectively scanning a light beam which is passed through the modulator, at least one lens unit having at least one lens which is movable to a position on the optical axis and a position completely off the optical axis, and a controller for switching the modulating clock frequency of the modulator and the rotating speed of the polygon mirror together with selective shifting of the at least one lens unit or lens thereof to a position on the optical axis or completely off the optical axis whereby the method effects control of the apparatus for controlling print density.

    摘要翻译: 一种用于提供可控打印浓度的激光束扫描装置和方法。 激光束扫描装置包括用于调制光束的调制器,用于偏转地扫描通过调制器的光束的旋转多面镜,至少一个透镜单元,其具有至少一个可移动到光学器件上的位置的透镜 轴和完全离开光轴的位置,以及用于切换调制器的调制时钟频率和多面镜的旋转速度的控制器,以及至少一个透镜单元或其透镜的选择性移位至光学上的位置 轴或完全离开光轴,由此该方法实现了用于控制打印浓度的装置的控制。

    Lens-on-disc type optical scanning apparatus
    8.
    发明授权
    Lens-on-disc type optical scanning apparatus 失效
    镜片式光盘扫描装置

    公开(公告)号:US4640573A

    公开(公告)日:1987-02-03

    申请号:US460804

    申请日:1983-01-25

    IPC分类号: G02B3/00 G02B26/10 H04N1/113

    CPC分类号: G02B26/10 G02B3/00

    摘要: A lens-on-disc type optical scanner comprises a plurality of lenses of predetermined surface profile arranged on a disc along the circumferential direction of the disc. The disc is rotated so that a laser beam from a laser beam source passes sequentially through the lenses for optical scanning.

    摘要翻译: 圆盘镜片式光学扫描器包括沿盘的圆周方向布置在盘上的多个具有预定表面轮廓的透镜。 旋转盘,使得来自激光束源的激光束依次通过透镜进行光学扫描。

    Laser recorder with piezoelectric bimorph focal length vibrator
    10.
    发明授权
    Laser recorder with piezoelectric bimorph focal length vibrator 失效
    激光记录仪采用压电双压电晶片振镜

    公开(公告)号:US4274101A

    公开(公告)日:1981-06-16

    申请号:US76427

    申请日:1979-09-17

    摘要: In a laser beam recording apparatus comprising a laser source, an optical modulator for modulating the intensity of the laser beam from the laser source in response to an electrical signal, an optical scanner for deflecting the modulated laser beam, a recording medium on which the deflected laser beam is recorded, and a optical system for guiding the emitted laser beam from the laser source to recording medium, an automatic focusing device is provided for vibrating a lens or mirror in the optical system in synchronism with the scanning provided by the optical scanner, thereby converging the deflected laser beam into a small spot at any position on the recording medium.

    摘要翻译: 在包括激光源的激光束记录装置中,响应于电信号调制来自激光源的激光束的强度的光调制器,用于偏转调制的激光束的光学扫描器,其上偏转的记录介质 记录激光束,并且提供用于将发射的激光束从激光源引导到记录介质的光学系统,自动聚焦装置用于与由光学扫描器提供的扫描同步地在光学系统中振动透镜或反射镜, 从而将偏转的激光束会聚到记录介质上的任何位置的小斑点。