Camouflage by Controllable Color Changes.

摘要

A practical camouflage system whose colors and color patterns can be continuously,controllably and reversibly varied on command would be of great tactical importance to mobile army units. In the study described a number of possible approaches were researched,an extensive literature search was carried out,and some laboratory investigations performed. From considerations of each of these approaches,the state-of-the-art in materials technology,and of the requirements of the program, a liquid crystal approach was deemed to have the best potential for demonstrating the feasibility of a variable camouflage system. By electrically varying the temperature of a cholesteric liquid crystal,the color is also varied. The concept has been demonstrated to be reversible,controllable and reproducible,even though the colors and color ranges obtained are not ideal. (Modified author abstract)