RADIATION DIFFRACTION COLORANTS

摘要

The present invention relates to a system for producing radiation diffractive material comprising:
- a substrate for receiving a dispersion of core-shell particles that form an ordered periodic array, the shells being swellable and substantially non-film-forming;
- a matrix delivery device for coating the array with a matrix composition;
- a radiation source for illuminating the coated array;
- a radiation detector for measuring the spectrum of radiation diffracted by the coated array; and
- a curing system for curing components in the coated array and fixing the relative positions of the particles.