In
response to the increasing use of advanced two axis machining systems,
for the
direct lathing of contact lenses, Contour Fine Tooling has developed
a range of tools with conical or cylindrical clearance. These tools
are available with natural or synthetic single crystal diamond and
with the traditional solid shank or the Insert system
Unlike established contact lens lathes that operate on the R theta
principle, 2 axis lathes dictate that the diamond tool must have a
radius with controlled
waviness. The control software of the machine in conjunction with the tool radius
form combine to generate the lens geometry. Any errors in the tool form will
translate directly into the machined work piece. Evolved from
the demanding requirements of the electro-optics manufacturing industries, controlled
waviness contact lens tools offer an extremely high level of performance at an
affordable price. |