Reducing Axial Run-Out in a Flexible Optical Disk by Restricting Airflow to the Aerodynamic Stabilizer
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概要
- 論文の詳細を見る
Flexible optical disks (FODs) can be rotated at 15,000 rpm and have the capability of recording at 250 Mbps, the rate necessary for a high definition video recording system (HD-D5). Although the conventional stabilization system can suppress the axial run-out of FODs to approximately 1/10 (${\leq}10$ μm) of that of current optical disks, FODs rotating at 15,000 rpm must be set close to the stabilizer within about 100 μm. Because of this severe positioning constraint at high-speed rotation, high accuracy of assembly and positioning are required in the drive system, and the mechanical margin of the setting is very narrow. To overcome this problem, we developed a new stabilizing method that can suppress the axial run-out while keeping a wide clearance margin between the disk and stabilizer by restricting airflow to the stabilizer.
- 2010-08-25
著者
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Koide Daiichi
Science & Technical Research Laboratories Nhk (japan Broadcasting Corporation)
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Tokumaru Haruki
Science & Technical Research Laboratories Nhk (japan Broadcasting Corporation)
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Aman Yasutomo
Ricoh Company Ltd. Manufacturing Technology R&d Center
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Koide Daiichi
Science and Technology Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
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Takano Yoshimichi
NHK Engineering Services, Inc., Setagaya, Tokyo 157-8540, Japan
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Kajiyama Takeshi
Science and Technology Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
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Onagi Nobuaki
Ricoh Company, Ltd., 16-1 Shineicho, Tsuzuki, Yokohama 224-0035, Japan
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Onagi Nobuaki
Ricoh Co., Ltd., 16-1 Shinei-cho, Tsuzuki-ku, Yokohama 224-0035, Japan
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Takano Yoshimichi
NHK Engineering Service, Inc., 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
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Aman Yasutomo
Ricoh Company, Ltd., 16-1 Shineicho, Tsuzuki, Yokohama 224-0035, Japan
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Aman Yasutomo
Ricoh Co., Ltd., 16-1 Shinei-cho, Tsuzuki-ku, Yokohama 224-0035, Japan
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Tokumaru Haruki
Science and Technology Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
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