1980-05-27
1982-02-23
Henry, Jon W.
350102, G02B 718
Patent
active
043166504
ABSTRACT:
A sealed prism assembly including a prism having a cylindrical body region which terminates at one of its ends with an annular flange. Encasing the body region and fitting closely thereabout is a cylindrical cup terminating at a circular end which contacts the flange. A silicone rubber sealant distributed between the prism body region and the cup forms an expandable-contractable air-tight seal therebetween. The prism and cup are encased in a canister in an axially compressed condition.
Henry Jon W.
McHenry Systems, Inc.
LandOfFree
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