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	Analysis and design of suspension wire in the optical pickup actuator
	Zhang, B.Q. ; Ma, J.S. ; Cheng, X.M. ; Pan, L.F. ; Wu, L.Y.
	2010-05-10 ; 2010-05-10
会议名称	Proceedings of the SPIE - The International Society for Optical Engineering ; Quantum Optics, Optical Data Storage, and Advanced Microlithography ; Beijing, China ; INSPEC
关键词	Practical Experimental/ actuators ageing lenses optical design techniques optical disc storage optical fabrication wires/ suspension wire optical pickup actuator lens actuator wire design laser vibrometer DVD-ROM HD DVD Blu-Ray/ A4280T Optical storage and retrieval A4215E Optical system design A4280A Optical lenses and mirrors A4285D Optical fabrication, surface grinding B4120 Optical storage and retrieval
中文摘要	The lens actuator is the important mechanical-electrical component in the optical disk reading/recording system. According to the error signals from the optical pickup reading/writing process, namely the focusing and tracking error signals, the focusing coils as well as the tracking coils are applied the corresponding corrective current (or voltage), thus, the force generated by the current-on coils in the magnetic field will real-time actuate the objective lens to make the focusing spot precisely fall on the disc information track, realizing the data reading/writing. As wire suspension type, the suspension model determines the wire design process. According to the material mechanics, the force distribution on the wires is analyzed and the four wire suspension model is set up, thus, the wire parameters are designated and the natural frequency as well as the static sensitivity of the moving part can be determined. After serial material experiments using Instron 5848 Microtester, better treatment for the wire fabrication is adopted with 1.5 hour aging and sliver cover-layer. Moreover, the actuator with the suspension wire is tested by the laser vibrometer and results show the good performance of the actuator, which proves the feasibility of the suspension model. Although the suspension model is set up on the four wire suspension actuator used in DVD-ROM, it can also be used in the six wire suspension actuator in the HD DVD and Blu-Ray.
会议录出版者	SPIE - The International Society for Optical Engineering ; USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19220]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, B.Q.,Ma, J.S.,Cheng, X.M.,et al. Analysis and design of suspension wire in the optical pickup actuator[C]. 见:Proceedings of the SPIE - The International Society for Optical Engineering, Quantum Optics, Optical Data Storage, and Advanced Microlithography, Beijing, China, INSPEC.

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