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    • 3. 发明授权
    • Optical recorder having focus controlling means
    • 光学记录器具有聚焦控制装置
    • US4003059A
    • 1977-01-11
    • US545746
    • 1975-01-30
    • Yoshinori SugiuraKiyonobu EndoKimio KonoHideaki Sato
    • Yoshinori SugiuraKiyonobu EndoKimio KonoHideaki Sato
    • G11B7/085G11B7/09G11B7/12G01D18/00
    • G11B7/08582G11B7/0917G11B7/122
    • An optical device includes a recording medium for recording and reproducing information by light beam, a generator of writing and reproducing light beam, a floating member provided at least one floating shoe which produces high air pressure at that surface thereof which faces to the recording medium at an extremely small distance thereof, an optical lens mounted upon the floating member for focusing the light beam upon the surface of the recording medium, a detector of the floating height of the floating member above the recording medium, and optical system controller for controlling in response to the output from the floating height detector in such a way that the point at which the light beam is focused by the optical lens is within a predetermined range relative to the surface of the recording medium.
    • 光学装置包括用于通过光束记录和再现信息的记录介质,写入和再现光束的发生器,浮动构件,其设置有至少一个浮动鞋,其在其面向记录介质的该表面处产生高空气压力 其极小的距离,安装在用于将光束聚焦在记录介质的表面上的浮动元件的光学透镜,浮动元件在记录介质上方的浮动高度的检测器,以及响应于控制的光学系统控制器 到浮动高度检测器的输出,使得光束被光学透镜聚焦的点在相对于记录介质的表面的预定范围内。
    • 4. 发明授权
    • Recording apparatus
    • 记录装置
    • US4351005A
    • 1982-09-21
    • US179174
    • 1980-08-18
    • Nobuhiro ImaiKimio KonoKazuo HoshitoTakehiko KiyoharaHideaki Sato
    • Nobuhiro ImaiKimio KonoKazuo HoshitoTakehiko KiyoharaHideaki Sato
    • G06K15/12H04N1/30
    • G06K15/12
    • A recording apparatus including a beam generator for generating a beam modulated by a modulating signal supplied thereto; a deflector for deflecting the beam generated by the beam generator repeatedly in two directions; a recording member for receiving the beam deflected by the deflector and recording the trajectory of irradiation by the beam; a recording information storage for storing information to be recorded on the recording member; the recording information read from the information storage being supplied to the beam generator as the modulating signal; a beam detector provided in the deflecting area of the beam deflected by the deflector and adapted to release a beam detection signal upon detection of arrival of the deflected beam at the detector; and a signal forming device adapted for selecting either one of two consecutive beam detection signals released from the beam detector thereby forming a reference signal for instructing the initiation of the readout from the recording information storage.
    • 一种记录装置,包括用于产生由提供给其的调制信号调制的光束的光束发生器; 偏转器,用于在两个方向上重复地偏转由光束发生器产生的光束; 用于接收由偏转器偏转的光束并记录光束的照射轨迹的记录部件; 用于存储要记录在记录部件上的信息的记录信息存储器; 从信息存储器读取的记录信息作为调制信号提供给光束发生器; 光束检测器,设置在由偏转器偏转的光束的偏转区域中,并且适于在检测到偏转光束到达检测器时释放光束检测信号; 以及信号形成装置,适于选择从光束检测器释放的两个连续的光束检测信号中的任一个,从而形成用于指示从记录信息存储开始读出的参考信号。