Lens has 2:1 focal-length ratio, consists of three spherical and two cylindrical elements, and is 7.6 cm in length. When used in conjunction with image dissector tube, expected root-mean-square noise equivalent angle is approximately 8 arc seconds.
Anamorphic lens for tracking system
NASA Tech Briefs ; 1 , 1
1976-03-01
Miscellaneous
No indication
English