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Browsing by Author "Shih, HF"

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    Design of optical head with holographic optical element for small form factor drive systems
    (2005-02-01)
    Shih, HF
    ;
    Chang, CL
    ;
    Lee, KJ
    ;
    Chang, CS
    ;
    機械工程學系
    An optical head composed of an optical module and a biaxial actuator is designed for small form factor drives. This system adopts a finite-conjugate objective lens with numerical aperture 0.65 for 654-nm wavelength. A holographic optical element is used for simplifying the optical configuration which provides a better approach for alignment. The actuator is of a spider-like suspension for the focusing and is of a swing arm for the tracking.