Asymmetric Fourier transform optical system and holographic storage optical system |
Title： |
| Asymmetric Fourier transform optical system and holographic storage optical system |
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Application Number： |
200510034649 |
Application Date： |
2005/05/13 |
Announcement Date： |
2006/11/15 |
Pub. Date： |
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Publication Number： |
1862306 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G02B 9/10, G02B 9/24, G11B 7/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Zeng Jiyong, Jin Guofan, Wang Minqiang, Yan Yingbai |
Key Words： |
Asymmetric, Fourier transform, holographic storage, optical system |
Abstract： |
The present invention relates to an asymmetrical Fourier transform optical system. From object surface to spectral surface it includes first lens group with negative-light deports and second lens group with positive-light dioptry, in which said first lens group is formed from a first meniscus concave lens and a second meniscus concave lens, the convex surface of said first meniscus concave lens is faced with object surface, the convex surface of said second meniscus concave lens is faced with spectral surface; said second lens group is formed from a convex lens, its one lens surface faced with object surface is a convex surface. Said invention also provides a volume holographic storage optical system adopting the above-mentioned asymmetrical Fourier transform optical system. |
Claim： |
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Priority： |
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PCT： |
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