Photochromic plastics

Nori Y. C. Chu

doi:10.1117/12.2283609

28 March 1990 Photochromic plastics

Nori Y. C. Chu

Proceedings Volume 10304, Large-Area Chromogenics: Materials and Devices for Transmittance Control; 1030406 (1990) https://doi.org/10.1117/12.2283609
Event: Institutes for Advanced Optical Technologies, 1989, Hamburg, Germany

Abstract

A variety of materials and compounds change color when exposed to light and revert to their original color when placed in the dark. This reversible color change phenomenon induced by light is called photochromism. Since many compounds exhibit this phenomenon over A spectral range wider than the visible region, a broader definition for photochromism has been established as a reversible change of a single chemical species between two energy states with distinct absorption spectra and such a reversible change is induced in at least one direction by the action of the electromagnetic radiation.

Citation Download Citation

Nori Y. C. Chu "Photochromic plastics", Proc. SPIE 10304, Large-Area Chromogenics: Materials and Devices for Transmittance Control, 1030406 (28 March 1990); https://doi.org/10.1117/12.2283609

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