Characteristics of Flexible-Film Disks
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概要
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To achieve high-density recording with a high numerical aperture (NA) pickup, we produced a flexible optical disk system that has a small axial runout, enabling the pickup to follow the focal servo more easily. Young's modulus, the film thickness, and the position of the radius determine the rigidity of a film. Therefore, we defined the length to which a stabilizer pushing on a disk deformed the disk as the repellent force of the film and investigated the relationship between this repellent force and the axial runout of the disk. Consequently, by developing films with a specific repellent force, the axial runout of a variety of disks was reduced to less than 10 μm and high-density recording was achieved at a linear velocity of 13 m/s.
- 公益社団法人 応用物理学会の論文
公益社団法人 応用物理学会 | 論文
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