Abstract
The purpose of this work is to develop a new surface-modification technique for soft mechanisms. We focused on structural color existing natural world. In the previous report, we reported the change of the diffracted light with stretching and fabrication of an FMA(Flexible Microactuator) with diffraction grating structure In this paper, we report a multi grating pattern sheet made from silicone rubber. Multi grating pattern consisting of 9 patterns is used. We fabricated black and transparent rubber sheets with multi grating pattern, which works successfully to change the color with stretching. The experiment shows that the black sheet shows brighter diffracted light than the transparent sheet.
