Patent ID: 6174153
Filing Date: 2001-01-16
Classification: G02B,G09F

Abstract:
An apparatus for forming rotating elements for a rotating element display comprising:a) at least one separator member, having a diameter, each separator member having two opposed surfaces and an edge region in contact with both of said surfaces,b) means for providing at least two liquid flows wherein each one of the liquid flows has an associated surface on an associated separator member, wherein each one of the at least two liquid flows is provided across the associated surface of the associated separator member toward the edge region of the associated separator member, the plurality of liquid flows each being a flow of hardenable liquid material associated with an optical modulation characteristic, and at least one of the liquid flows containing a magnetic pigment,c) means for merging the liquid flows outboard of the edge regions of the at least one separator member to form a reservoir containing side-by-side amounts of each liquid,d) means for forming a free jet approximately in a plane outward from the reservoir, the free jet comprising side-by-side amounts of each liquid from the reservoir,e) means for providing a magnetic field, andf) means for passing at least a portion of the free jet through the magnetic field to magnetize the magnetic pigment wherein the magnetic field is aligned transverse to the free jet.