Share Email Print
cover

Proceedings Paper

Optical pickup for recording to dual-layer 2x-speed Blu-ray disc, DVD, and compact disc
Author(s): Toshiyasu Tanaka; Kousei Sano; Kenji Matsumura; Hidenori Wada; Keiichi Matsuzaki; Kanji Wakabayashi; Yoshiaki Komma
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An ordinary half-height size optical pickup with high light-use efficiency for Blu-ray Discs (BDs) has been realized. It has two objective lenses arranged tangentially. Although one of the objective lenses, BD objective lens, does not follow the line that passes thorough the center of the spindle motor, stable tracking-error detection has been achieved by enhancing a one-beam method. This pickup has a beam shaper which changes a divergent angle of light with high magnification. Although beam shapers are sensitive to a positional error, our pickup accomplished stable positioning by introducing a new structure.

Paper Details

Date Published: 22 June 2006
PDF: 10 pages
Proc. SPIE 6282, Optical Data Storage 2006, 62822C (22 June 2006); doi: 10.1117/12.692279
Show Author Affiliations
Toshiyasu Tanaka, Matsushita Electric Industrial Co., Ltd. (Japan)
Kousei Sano, Matsushita Electric Industrial Co., Ltd. (Japan)
Kenji Matsumura, Matsushita Electric Industrial Co., Ltd. (Japan)
Hidenori Wada, Matsushita Electric Industrial Co., Ltd. (Japan)
Keiichi Matsuzaki, Matsushita Electric Industrial Co., Ltd. (Japan)
Kanji Wakabayashi, Matsushita Electric Industrial Co., Ltd. (Japan)
Yoshiaki Komma, Matsushita Electric Industrial Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 6282:
Optical Data Storage 2006
Ryuichi Katayama; Tuviah E. Schlesinger, Editor(s)

© SPIE. Terms of Use
Back to Top