Development of Integrated Optical Unit for Large Storage Capacity Floppy Disk
Development of Integrated Optical Unit for Large Storage Capacity Floppy Disk
复制标题
大容量软盘集成光学单元的研制
DOI：
10.1143/jjap.39.1554
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
T. Saimi
中科院分区：
文献类型：
--
作者：
K. Sano;S. Kadowaki;Hajime Hatada;M. Takano;T. Saimi
本文提出了一种适用于大容量软盘驱动器的小型集成光学单元。光学单元宽6.8 mm，深3.3 mm，高3.0 mm。激光二极管和光盘上的聚焦光束之间的距离仅为4.0 mm。光学单元由两个部件组成，即透镜单元和激光检测器单元。在这种光学装置中，光束倾斜入射到光盘上，反射光束走另一条路，因此，衍射光栅、透镜和偏转器可以集成为一个部件。光学单元允许宽盘倾斜高达2.4度。
A small integrated optical unit suitable for a large storage capacity floppy disk drive is proposed. The optical unit is 6.8 mm wide, 3.3 mm deep, and 3.0 mm high. The distance between the laser diode and the focused beam on the disk is only 4.0 mm. The optical unit consists of two components, a lens unit and a laser-detector unit. In this optical unit, with the beam slanting incident on the disk, the reflected beam takes another path. Thus, a diffraction grating, a lens, and a deflector can be integrated into one component. The optical unit allows wide disk tilting of up to 2.4 degrees.