レンズレス光フロッピーディスクシステムの研究(2) : 空気流体応用ヘッドの実験と相変化録再基礎実験

概要

論文の詳細を見る
An automatic gap control mechanism between an optical head and a flexible disk was proposed by one of us and preliminary experiments using a lensless optical head and a piece of dye-polymer optical medium were performed and published in 1993. The dye-polymer optical medium is used as a surface recording material with a lensless optical head where the distance between the medium and the lensless optical head is very close such as less than 1 micron meter, evapolated dye-polymer by laser pulses which form pits on the surface of the optical medium, again adhered, or is deposited to an output facet of the laser diode chip. In this paper phase change medium was used in order to avoid the adhesion. Writing and reading experiments using the phase change medium were done successfly without any objective lens. Various aero-dynamic experiments were performed to get a stable and narrow constant gap between the lensless head and the flopy disk with parameters of disk rotaing speed and height of the lensless optical head to the disk direction. The gap was able to maintain very narrow and stable as narrow as ±0.15 micron meter.
東海大学の論文
1996-03-30