Method of imaging in crystalline colloidal arrays
AssigneePPG Industries Ohio, Inc.
InventorsSean Purdy, Eldon L. Decker, Calum H. Munro, Noel R. Vanier
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Abstract
A method of producing an image in the crystalline colloidal array is disclosed. The method includes providing an ordered array of particles received within a curable matrix composition; curing a first portion of the matrix composition, wherein the first cured portion diffracts radiation at a first wavelength; curing another portion of the matrix composition, wherein the other cured portion diffracts radiation at another wavelength; and exposing the array to radiation to exhibit an image.
Claims22
A method of producing an image comprising:
- providing an imaging member comprising an array of elements received within a curable matrix composition;
- curing the matrix composition in a first portion of the imaging member by projecting laser radiation onto said first portion in the configuration of an image, such that the first cured portion exhibits a first optical property;
- altering another portion of the imaging member;
- and
- curing the other portion of the matrix composition, such that the other cured portion exhibits a different optical property from the first portion.
A method of producing an image comprising:
- providing an array of elements received within a curable matrix composition;
- curing a first portion of the matrix composition through a grey-scale positive or negative mask of an image;
- and
- curing another portion of the matrix composition.
A method of producing a multi-color image in a crystalline colloidal array comprising:
- providing a plurality of imaging members, each imaging member comprising an ordered array of particles received within a curable matrix composition;
- providing an image mask for each imaging member;
- exposing each imaging member to actinic radiation through one of the image masks to produce a plurality of imaged members, each imaged member having a cured image portion and an uncured background portion;
- curing the uncured portions of the imaged members such that the cured image portion and the cured background portion diffract radiation at differing wavelengths;
- and
- stacking the imaged members such that the diffraction of radiation from the cured image portions yields a full-color image.
Dependencies are inferred from the claim text.