Paper Abstract and Keywords |
Presentation |
2006-09-15 15:20
Optical Pickup for Writing Dual Layer 2x-speed BD, DVD and CD Toshiyasu Tanaka, Kousei Sano, Kenji Matsumura, Hidenori Wada, Keiichi Matsuzaki, Kanji Wakabayashi, Yoshiaki Komma (MEI) Link to ES Tech. Rep. Archives: CPM2006-84 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
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. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
optical disc / tracking error / one beam / beam shaping / beam shaper / Blu-ray / BD / |
Reference Info. |
IEICE Tech. Rep., vol. 106, no. 248, CPM2006-84, pp. 31-36, Sept. 2006. |
Paper # |
CPM2006-84 |
Date of Issue |
2006-09-08 (CPM) |
ISSN |
Print edition: ISSN 0913-5685 |
Copyright and reproduction |
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Link to ES Tech. Rep. Archives: CPM2006-84 |
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