Abstract
A new technique for reducing vibration of an objective lens actuator on a carriage is developed for optical disc drives. Phase disturbance at frequencies of several thousand hertz resulting from drive reaction forces is discussed. A practical method using only phase disturbance for evaluating modal damping in higher modes is proposed. Calculating modal damping in higher modes by this method is feasible for deciding the modal residue ratio and the level of vibration reduction. A simple structure for isolating the vibration of the drive reaction force of the actuator is designed. A new lens actuator which uses this vibration reduction technique has developed. And a thin-type optical disc drive has developed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Society for Precision Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
