2007•Unpublished venueRequires access

Triple-write One-lens Optical Pickup for Blu-ray Disc/DVD/CD Supporting 4x Blu-ray Read/Write

F. Issiki, N. Maeda, Katsuhiko Kimura, Hideo Suenaga, Tetsuji Kurokawa

Abstract

Blu-ray disc (BD)/digital versatile disc (DVD)/compact disc (CD) compatible optical pickup supporting Blu-ray 4times read/write has been developed. To achieve 4times speed for BD, a one-lens-type objective lens was adopted to ensure stability for high-speed tracking servo control. Optical system, signal characteristics, and actuator vibration characteristics of the developed pickup are presented.

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Available abstract

Key concepts: Optical disc, Pickup, Compact disc, Lens (geology), Actuator, Optics, Servo, Computer science