Multi-layer optical head for 3D storage |
Title： |
| Multi-layer optical head for 3D storage |
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Application Number： |
00124422 |
Application Date： |
2000/09/01 |
Announcement Date： |
2001/01/24 |
Pub. Date： |
2003/09/10 |
Publication Number： |
1281216 |
Announcement Number： |
1121030 |
Grant Date： |
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Granted Pub. Date： |
2003-9-10 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G11B 7/12, G11B 7/135 |
Applicant(s)： |
Qinghua Univ |
Inventor(s)： |
Xu Duanyi, Ma Lijun, Li Hexiong |
Key Words： |
Multi-layer optical head, 3D storage |
Abstract： |
An optical head for parallelly reading and writing on multilayer 3D optical disk in order to effectively increase R/W rate and storage capacity is disclosed. Its primary optical axle is composed of laser, frequency doubler, collimating lens and two splitters. The object lens, right splitter, auxiliary collimating lens and auxiliary laser are coaxially installed to obtain an optical axle with an included angle with primary optical axle of 90 deg. The optical disk is arranged at another side of object lens opposite to splitter. A secondary optical oxle is composed of another collimating lens, another laser and left splitter and vertical to the primary optical axle. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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