Patent ID: 8506089

Claim:
An apparatus for preventing bird collisions with a window, the apparatus comprising: an ultraviolet (UV) light source; a mask that is at least partially transparent to UV light including a pattern that is at least partially opaque to UV light; a first lens configured to direct UV light from the UV light source through the mask, wherein the UV light passing through the mask contains the pattern, wherein the pattern-containing UV light is projected onto a pane of glass to form a UV image visible to birds corresponding to the pattern on the pane of glass and configured to deter birds from flying into the pane of glass; a first circuit comprising a first coil coupled to the UV light source; and a power circuit comprising a power supply and a second coil electromagnetically coupled to first circuit through the pane; wherein the power supply supplies an electric current to the second coil to induce a magnetic flux in the second coil and the magnetic flux from the second coil induces an electric current in the first coil.