Optical Disc for Small Form Factor Optical Drive

概要

論文の詳細を見る
We investigated the signal characteristics of a 46 mm small optical disk in a blue laser system [laser wavelength, 405 nm; numerical aperture (NA), 0.85]. To determine the physical dimensions of the rim area of the disk, we considered some factors affecting this rim area. We confirmed the transcription of the substrate, and the thickness of the cover layer of the disc. Also, by spin coating and selecting the optimum viscosity of the resin used for the 0.1-mm-thick cover layer, it was possible to reduce rim area from 1.5 mm to 1.0 mm. Also, we confirmed that the thickness of the substrate for sufficient mobility should be thicker than 0.5 mm.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2005-05-15