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    • 6. 发明授权
    • Three laser optical disk drive system
    • 三激光光盘驱动系统
    • US5113387A
    • 1992-05-12
    • US449002
    • 1989-12-12
    • Paul GoldsmithWilliam R. A. Ziegler
    • Paul GoldsmithWilliam R. A. Ziegler
    • G11B7/00G11B7/004G11B7/0045G11B7/0055G11B7/095G11B7/127G11B7/13G11B7/24G11B7/30
    • G11B7/127G11B7/004G11B7/13G11B7/24
    • An erasable optical disk drive system is disclosed which utilizes an electron trapping media coated on the disk surface to store data in the form of light energy and which utilizes three laser beams, each having a wavelength range distinct from each other as well as distinct from the wavelength range of the emission produced by the impingement of the read laser onto the electron trapping media. Data is written onto the disk, which is contained in a light-tight contamination-free environment, using a visible light laser beam. Data is read from the disk and the disk is erased by using a near infrared light laser beam. The focus and tracking functions of the disk drive system are accomplished by using a laser beam having yet another range of wavelengths, which are greater than those of the visible light laser beam and those of the photon emission from the electron trapping optical memory media, but less than those of the read/erase laser.
    • 公开了一种可擦除光盘驱动系统,其利用涂覆在盘表面上的电子捕获介质以光能的形式存储数据,并且利用三个激光束,每个激光束具有彼此不同的波长范围, 通过将读取的激光撞击到电子俘获介质上产生的发射的波长范围。 使用可见光激光束将数据写入包含在不透光的环境中的光盘上。 从磁盘读取数据,并通过使用近红外光激光束擦除磁盘。 磁盘驱动系统的聚焦和跟踪功能是通过使用具有大于可见光激光束的另一波长范围的激光束和来自电子捕获光存储介质的光子发射的激光束来实现的,但是 小于读取/擦除激光器的数量。