Large capacity digital CD and making method thereof |
Title： |
| Large capacity digital CD and making method thereof |
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Application Number： |
01118392 |
Application Date： |
2001/05/29 |
Announcement Date： |
2002/01/30 |
Pub. Date： |
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Publication Number： |
1333535 |
Announcement Number： |
1136553 |
Grant Date： |
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Granted Pub. Date： |
2004-1-28 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G11B 7/004, G11B 7/24, G11B 7/26 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Pan Longfa, Bing Yuejing, Luan Xun |
Key Words： |
Large capacity, digital CD, making method |
Abstract： |
The present invention belongs to the field of optical informatino storage medium technology, mainly consisting of substrate with time coding track, recording layer, reflecting layer and photocurable protective colloid layer. The track pitch range with time coding is 1.2 micrometers-1.4 micrometers, linear speed range is 0.90 m/sec.-1.1m/sec., the time coding possesses two coding formats of decimal-coded format and hexadecimal-coded format. Said invention can obviously raise optical disk capacity, and the storage time can be raised by 120 min. and more than that, and can meet the requirements for optical disk storage capacity of doemstic oplical disk video machine, so that it can use one optical disk to record one film. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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