Bond between a rigid refractive element and a surrounding housin

Details Bond between a rigid refractive element and a surrounding housin Bond between a rigid refractive element and a surrounding housin

1993-10-12

1995-07-25

Sugarman, Scott J.

Optical: systems and elements

Lens

Fluid

G02B 106, G02B 312

Patent

active

054367662

ABSTRACT:
In an optical system comprising a pair of rigid (e.g., glass) lens elements 11 and 12 mounted coaxially within a hollow cylindrical housing 10 so as to define a gap therebetween, a liquid (which functions as a liquid lens element 13) is contained within the gap. The rigid lens elements 11 and 12 are bonded to corresponding interior surface portions of the cylindrical housing 10 by means of an adhesive material that also functions as a sealant to prevent leakage of liquid from the gap. The adhesive sealant material preferably consists of a fluorosilicone sealant marketed by Dow Corning Corporation of Midland, Mich. under the trademark DOW CORNING X5-8738.

REFERENCES:
patent: 5113331 (1992-05-01), Nagengast
patent: 5180219 (1993-05-01), Geddie

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