Focal shift and focal switch in dual-focus systems

1997 ◽  
Vol 14 (6) ◽  
pp. 1297 ◽  
Author(s):  
Yajun Li
Keyword(s):  
Optik ◽  
2005 ◽  
Vol 116 (3) ◽  
pp. 99-106 ◽  
Author(s):  
Xiumin Gao ◽  
Fei Zhou ◽  
Wendong Xu ◽  
Fuxi Gan

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