US Patent 7095702 Optical pickup apparatus

Patent 7095702 was granted and assigned to LG on August, 2006 by the United States Patent and Trademark Office.

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Patent Inventor Names

Seong Yun Jeong0

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Patent abstract

The present invention relates to an optical pickup apparatus enabling to reproduce/record data of different kinds of disks in different thicknesses, using one single optical pickup. The optical pickup apparatus includes two objective lens, in which one objective lens has an incident plane and an outgoing plant formed of a flat plane at a designated radius domain from an optical axis, thereby preventing spherical aberration caused by the difference of the thickness between different kinds of disks.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=070957020

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