LIGHT-MODIFYING AND OTHER STRUCTURES USING DICHROMATED GELATINE AND OTHER MATERIALS, AND METHODS OF MAKING SUCH STRUCTURES

摘要

The invention relates to various structures utilising dichromated gelatine (DCG) or analogous materials and includes improved techniques for processing DCG to produce light-modifying structures and/or products having an open-celled or porous structure. Applications include a collimating, lens-like light diffuser, improved LCD displays utilising DCG or another transparent porous material permeated by a liquid crystal medium, a reflector comprising a thin layer of DCG on a substrate and also a non-optical product comprising a magnetic recording medium, such as a magnetic disk having a coating of a porous open-celled medium, preferably DCG, in which the pores are filled with a ferro-fluid.