Light-dividing device for reading digital colour multi-layer multi-stage optical disk signal |
Title： |
| Light-dividing device for reading digital colour multi-layer multi-stage optical disk signal |
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Application Number： |
00103230 |
Application Date： |
2000/03/17 |
Announcement Date： |
2000/08/16 |
Pub. Date： |
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Publication Number： |
1263338 |
Announcement Number： |
1107946 |
Grant Date： |
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Granted Pub. Date： |
2003-5-7 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G11B 7/135 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Xu Duanyi, Liao Ningfang, Gong Mali |
Key Words： |
Light-dividing device, reading, digital, colour, multi-layer multi-stage, optical disk, signal |
Abstract： |
The light-dividing equipment for reading out digital colour multilayer multistep optical disk signal includes photoelectric receiver array and optical splitter, in which the optical splitter is formed from equicrural triple prism and imaging lens, and two oblique planes of the equicrural triple prism are photopermeable faces, and the incident beam is undergone the process offirst refraction on the incident face of prism, then the colour light beam dispersed by prism is focus-imaged onto the linear photoelectric receiver array by means of imaging objective. Said invented equipment can implement longitudinal and parallel fetch process of multilayer colour records positioned close to same focal plane, so that it is favourable for raising storage capacity of optical disk greatly and fetching rate of the signal. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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