Development of Integrated Optical Unit for Large Storage Capacity Floppy Disk

概要

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A small integrated optical unit suitable for a large storage capacity floppy disk drive is proposed.The optical unit is 6.8mm wide, 3.3mm deep, and 3.0mm high.The distance between the laser diode and the focused beam on the disk is only 4.0mm.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.
社団法人応用物理学会の論文
2000-03-30