Patent ID: 8056275

Claim:
An apparatus for providing a water disk effect, comprising: a first disk; a second disk, wherein the first and second disks each have a first side with a substantially planar surface and a second side with a surface textured with a three dimensional (3D) pattern including ridges and valleys and wherein the first and second disks are at least translucent to light; a housing supporting the first and second disks, wherein the first and second disks are mounted for independent rotation about a common rotation axis extending through a center of each of the disks and wherein the first side of the first disk is positioned adjacent and proximate the first side of the second disk, whereby the second sides of the first and second disk face outward in the apparatus; and a drive assembly adapted for rotating the first disk in a first direction about the rotation axis and for concurrently rotating the second disk in a second direction about the rotation axis that is opposite the first direction, wherein the index of refraction of at least the first and second disks is substantially identical and wherein paired, adjacent portions of the 3D pattern on the first and second disks produce interference during light transmission through the first and second disks.