Optical: systems and elements – Lens – Fluid
Patent
1994-05-18
1995-10-17
Lopez, F. Daniel
Optical: systems and elements
Lens
Fluid
G02B 312
Patent
active
054596149
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: 60109 (1866-11-01), Woodward
patent: 2200466 (1940-05-01), Cristiani et al.
patent: 3498695 (1970-03-01), Brouwer
patent: 5033831 (1991-07-01), Sigler
Niemi, R. G. "Silicones" in: Modern Plastics Encyclopedia (McGraw-Hill, 1988) vol. 65, No. 11, pp. 138-139.
Lockheed Missiles & Space Company Inc.
Lopez F. Daniel
Morrissey John J.
Radlo Edward J.
Violette J. P.
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