%0 Journal Article
%T THE SPATIAL FILTERING OF INCOHERENT IMAGING SYSTEM<br>非相干成象系统的空间滤波
%A LI ZHENG-MIN
%A <br>李正民
%J 物理学报
%D 1979
%I 
%X The physical behaviour of an incoherent-light illuminated optical imaging system is investigated. The result obtained is that there is a coherent region in the reference spherical surface of entrance or emergent pupil which is corresponding to a certain spatial frequency. The author explained the physical characteristics of incoherent optical transfer function sufficently, and suggested a possibility which may vary the transfer function curves of the system, thus permits a normal optical imaging system to have the ability of processing input signals in the frequency region.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=CDA1ADAC58D58DDC&yid=8C8371356FB4C85C&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=DABEF202280E7EF1&eid=B1F98368A47B8888&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0