Appeal No. 97-1697
Application No. 08/336,170
directed to allowable subject matter. These are all the
claims in the application.
The claimed invention relates to an eyeglass having a
variable focus lens system. The lens includes both a rigid
glass element and a distensible transparent plastic element
with a space therebetween filled with a transparent liquid. A
mechanical system is provided in the frame to change the shape
of the distensible filled membrane thereby changing the focal
length of the lens.
Claim 1, reproduced below, is further illustrative of the
claimed subject matter.
1. In a variable focus lens of the type having a lens
assembly comprising a rigid lens, a distensible membrane
spaced from said rigid lens, and liquid filling the space
between said rigid lens and said distensible membrane, where
the focal length of said variable focus lens is varied by
changing the spacing between said rigid lens and said
distensible membrane, an actuation system which comprises:
a finger operated positioner;
a flexible elongated operating member moveable lengthwise
responsive
to movement of said finger operated positioner;
a supporting structure of said flexible elongated operating
member
for preventing compressive buckling; and
2
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