Hybrid-type 3-axis actuator for active tilt compensation in optical pickup

Kyung Taek Lee; Chul Jin Kim; No Cheol Park; Young Pil Park

doi:10.1016/j.mechatronics.2007.10.003

Hybrid-type 3-axis actuator for active tilt compensation in optical pickup

Kyung Taek Lee, Chul Jin Kim, No Cheol Park, Young Pil Park

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In optical disc drives (ODD), a short wavelength laser, a high numerical aperture (NA) objective lens, and high track following performance are required for high data capacity and high data transfer rate. However, in disc drive systems using a short wavelength laser and a high NA objective lens, the deterioration of signal by disc tilt becomes serious. 3-axis actuators for active tilt compensation are used to compensate disc tilt. Hybrid-type 3-axis actuator, which has similar mechanical characteristics to conventional 3-axis actuators and simpler in its structure compared with them, is proposed in this paper. In order to optimize the configuration of the hybrid-type actuator, the electromagnetic circuit and moving part are designed by parametric investigations. The performance of the actuator is verified by experiments using proposed actuator.

Original language	English
Pages (from-to)	71-80
Number of pages	10
Journal	Mechatronics
Volume	18
Issue number	2
DOIs	https://doi.org/10.1016/j.mechatronics.2007.10.003
Publication status	Published - 2008 Mar

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Computer Science Applications
Electrical and Electronic Engineering

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10.1016/j.mechatronics.2007.10.003

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title = "Hybrid-type 3-axis actuator for active tilt compensation in optical pickup",

abstract = "In optical disc drives (ODD), a short wavelength laser, a high numerical aperture (NA) objective lens, and high track following performance are required for high data capacity and high data transfer rate. However, in disc drive systems using a short wavelength laser and a high NA objective lens, the deterioration of signal by disc tilt becomes serious. 3-axis actuators for active tilt compensation are used to compensate disc tilt. Hybrid-type 3-axis actuator, which has similar mechanical characteristics to conventional 3-axis actuators and simpler in its structure compared with them, is proposed in this paper. In order to optimize the configuration of the hybrid-type actuator, the electromagnetic circuit and moving part are designed by parametric investigations. The performance of the actuator is verified by experiments using proposed actuator.",

author = "Lee, {Kyung Taek} and Kim, {Chul Jin} and Park, {No Cheol} and Park, {Young Pil}",

year = "2008",

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AU - Lee, Kyung Taek

AU - Kim, Chul Jin

AU - Park, No Cheol

AU - Park, Young Pil

PY - 2008/3

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N2 - In optical disc drives (ODD), a short wavelength laser, a high numerical aperture (NA) objective lens, and high track following performance are required for high data capacity and high data transfer rate. However, in disc drive systems using a short wavelength laser and a high NA objective lens, the deterioration of signal by disc tilt becomes serious. 3-axis actuators for active tilt compensation are used to compensate disc tilt. Hybrid-type 3-axis actuator, which has similar mechanical characteristics to conventional 3-axis actuators and simpler in its structure compared with them, is proposed in this paper. In order to optimize the configuration of the hybrid-type actuator, the electromagnetic circuit and moving part are designed by parametric investigations. The performance of the actuator is verified by experiments using proposed actuator.

AB - In optical disc drives (ODD), a short wavelength laser, a high numerical aperture (NA) objective lens, and high track following performance are required for high data capacity and high data transfer rate. However, in disc drive systems using a short wavelength laser and a high NA objective lens, the deterioration of signal by disc tilt becomes serious. 3-axis actuators for active tilt compensation are used to compensate disc tilt. Hybrid-type 3-axis actuator, which has similar mechanical characteristics to conventional 3-axis actuators and simpler in its structure compared with them, is proposed in this paper. In order to optimize the configuration of the hybrid-type actuator, the electromagnetic circuit and moving part are designed by parametric investigations. The performance of the actuator is verified by experiments using proposed actuator.

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Hybrid-type 3-axis actuator for active tilt compensation in optical pickup

Abstract

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