Method of making uniformly magnetized elements for a gyricon display
First Claim
1. A method of forming rotating elements for a rotating element display comprising:
- a) providing at least two planar streams of hardenable liquids flowing in substantially the same direction, each stream being associated with an optical modulation characteristic wherein at least one stream has an associated optical modulation characteristic different from at least one other stream and at least one stream includes a magnetic pigment,b) merging the streams to form a reservoir containing side-by-side amounts of each liquid,c) forming a free jet containing side-by-side amounts of each liquid from the reservoir, andd) passing at least a portion of the free jet through a magnetic field aligned transverse to the free jet to magnetize the magnetic pigment.
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Accused Products
Abstract
A method of forming magnetized rotating elements for a rotating element display where all the elements are magnetized in the same orientation is provided. First, at least two planar streams of hardenable liquids flowing in substantially the same direction are provided. Each stream has an associated optical modulation characteristic and at least one stream has an associated optical modulation characteristic different from at least one other stream. At least one stream includes a magnetic pigment. The streams are then merged to form a reservoir containing side-by-side amounts of each liquid from each stream. A free jet is then formed containing side-by-side amounts of each liquid from the reservoir. Then a portion of the free jet is passed through a magnetic field which is oriented transverse to the direction of the free jet to magnetize the magnetic pigment. The rotating elements formed can be either spherical in shape or cylindrical in shape. In either case, each element will be comprised of side-by-side segments. To form spherical elements the free jet can be broken into spherical portions either before or after the magnetic pigment has been magnetized. Ultimately, magnetized spherical portions of the free jet are hardened into rotating spherical elements and collected. To form cylindrical elements, the free jet is magnetized and hardened into a filament The filament is then collected and broken into cylindrical elements.
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Citations
21 Claims
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1. A method of forming rotating elements for a rotating element display comprising:
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a) providing at least two planar streams of hardenable liquids flowing in substantially the same direction, each stream being associated with an optical modulation characteristic wherein at least one stream has an associated optical modulation characteristic different from at least one other stream and at least one stream includes a magnetic pigment, b) merging the streams to form a reservoir containing side-by-side amounts of each liquid, c) forming a free jet containing side-by-side amounts of each liquid from the reservoir, and d) passing at least a portion of the free jet through a magnetic field aligned transverse to the free jet to magnetize the magnetic pigment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification