| Presentation | 2002/1/10 Aberration-compensation Methods for 0.85 Numerical Aperture (NA) Single-Element Objective Lens Tetsuo ARIYOSHI, Takeshi SHIMANO, Koichi MARUYAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have fabricated a high numerical aperture objective lens that consists of only a single-element. This lens has a large working distance and no assembling procedures in comparison to a two-element objective lens already proposed. We have also developed aberration compensation methods for coma and spherical aberration. Especially, spherical aberration is compensated automatically by using a servo circuit. A signal read-out obtained from a high-density optical disk is demonstrated using this single-element objective lens. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 0.85-NA objective lens / aberration compensation / next-generation DVD / spherical aberration servo |
| Paper # | 2001-MR-95 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2002/1/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Aberration-compensation Methods for 0.85 Numerical Aperture (NA) Single-Element Objective Lens |
| Sub Title (in English) | |
| Keyword(1) | 0.85-NA objective lens |
| Keyword(2) | aberration compensation |
| Keyword(3) | next-generation DVD |
| Keyword(4) | spherical aberration servo |
| 1st Author's Name | Tetsuo ARIYOSHI |
| 1st Author's Affiliation | Hitachi Ltd., Central Research Laboratory() |
| 2nd Author's Name | Takeshi SHIMANO |
| 2nd Author's Affiliation | Hitachi Ltd., Central Research Laboratory |
| 3rd Author's Name | Koichi MARUYAMA |
| 3rd Author's Affiliation | Asahi Optical Co., Ltd. Research & Development Center |
| Date | 2002/1/10 |
| Paper # | 2001-MR-95 |
| Volume (vol) | vol.101 |
| Number (no) | 564 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |