MIL-L-49426, MILITARY SPECIFICATION: LENS ASSEMBLY, OBJECTIVE FOR AVIATOR’S NIGHT VISION IMAGING SYSTEM (06-NOV-1989) [NO S/S DOCUMENT]

MIL-L-49426, MILITARY SPECIFICATION: LENS ASSEMBLY, OBJECTIVE FOR AVIATOR’S NIGHT VISION IMAGING SYSTEM (06-NOV-1989) [NO S/S DOCUMENT]., This specification covers the Lens Assembly, Objective, referred to herein as the objective, which is a part of Aviation\'s Night Vision Imaging System, AN/AVS-6(V)1, AN/AVS-6(V)2, referred to herein as ANVIS (see 6.1).