05225932 is referenced by 9 patents and cites 9 patents.

An eyecup insert is provided which allows easy attachment and removal of an eyecup from an associated night vision goggle. The eyecup provides a light secure seal when pressed against the head of an operator of the goggle. A connecting end of the eyecup has annular channel which engages the insert. The insert is ring shaped with a central aperture having a plurality of detents protruding inwardly of the aperture. The operator can form a snap-fit connection between the eyecup and the goggle by forcing the aperture over a circular flange which surrounds an eyepiece of the goggle until the detents have snapped passed the flange. The eyecup can be removed by reversing the installation procedure.

Title
Eyecup insert for night vision goggles
Application Number
7/908301
Publication Number
5225932
Application Date
July 2, 1992
Publication Date
July 6, 1993
Inventor
Roland M Morley
Tempe
AZ, US
Gary A Wannagot
Mesa
AZ, US
Agent
Poms Smith Lande & Rose
Assignee
Litton Systems
CA, US
IPC
G02B 21/00
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