Prepn. of optical glass sbustrate for determining absolute zero position in plane
Title：
Prepn. of optical glass sbustrate for determining absolute zero position in plane
Application Number：
 01142031
Application Date：
 2001/09/07
Announcement Date：
 2002/02/20
Pub. Date：
 2003/12/17
Publication Number：
 1336563
Announcement Number：
 1131451
Grant Date：
Granted Pub. Date：
 2003-12-17
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G02B 27/32
Applicant(s)：
 Qinghua Univ.
Inventor(s)：
 Zhang Bopeng, Zhang Niansong, Zhang Yuecheng
Key Words：
 Prepn., optical glass sbustrate, absolute zero position, plane
Abstract：
 The invention relates to a preparing method of optical glass base sheet that is used to determine the absolute zero position of plane. At the beginning, a random number X with N X N entries is produced by a random function. Sequence Y composed of numeric 0 or 1 is created each to each based on random number. The number with N X N enntries in the sequence Y is arranged in sequence as a matrix Z with N low and N column composed of numeric 0 or 1. The optical glass base sheet is produced by copying the matrix Z as structure pattern onto surface of optical glass. When the absolute zero signal is being determined, the invented optical glass base sheet gives accurate signal, high signal-noise ratio, and high value in use. It is easy to produce.
Claim：
Priority：
PCT：
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