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Microsystem Technologies
Published in: Microsystem Technologies 8-10/2007

01-05-2007 | Technical Paper

High-performance optical pick-up actuator with singlet objective lens for BD/DVD/CD compatible drive

Authors: Byung Youn Song, Young Bin Lee, Dae Jong Jang, Jong Kook Lee, Junghoon Lee

Published in: Microsystem Technologies | Issue 8-10/2007

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Abstract

For perfect compatibility of BD/DVD/CD, a heavy objective lens assembly is inevitable. However, BD format needs very high transfer rate to edit the contents of HD media, without delay. And performance of an optical pick-up actuator is one of several keys to make it possible. To secure high sensitivity, we introduce a magnetic circuit composed of two 3-pole magnets. As a result of it, despite heavy weight of lens assembly, we achieved high performance enough to operate the disc drive as BD CLV 4X.
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Literature
Go S, Ryu J, Park KH, Jeong HS (1998) Characteristics of an asymmetric optical pick-up fine actuator of a high speed CD-ROM. J Korea Soc Noise Vib Eng 8(2):346–352
Kim SJ, Lee YH, Ahn YM, Chung CS (2002) Study on dual-lens actuators for HD-DVD system. In: Proceedings of Korea Society of noise and vibration engineering
Kim SJ, Heor TY, Kim TK, Ahn YM, Chung CS (2004) High response twin-objective actuator with radial tilt function. In: Technical Digest of International Symposium for Optical Memory
Kim TK, Kim SJ, Ahn YM (2005) Blu-ray Pick-up Head. In: Proceedings of Society of Information Storage System
Ueyama T, Watanabe Y, Numata T, Sakai K, Kurata Y (2003) A new tracking servo system using a phase-shift differential push-pull method for recordable optical disks. In: Technical Digest of International Symposium for Optical Memory
Metadata
Title
High-performance optical pick-up actuator with singlet objective lens for BD/DVD/CD compatible drive
Authors
Byung Youn Song
Young Bin Lee
Dae Jong Jang
Jong Kook Lee
Junghoon Lee
Publication date
01-05-2007
Publisher
Springer-Verlag
Published in
Microsystem Technologies / Issue 8-10/2007
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI
https://doi.org/10.1007/s00542-006-0333-6

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