Patent ID: 9122055
Filing Date: 2015-09-01
Classification: B29D,E06B,G02B,G02F

Abstract:
1. A shading system comprising: a substrate; a second material having a different index of refraction than the substrate on or embedded within a region of the substrate and forming a plurality of wrinkles; and a stretching device to reversibly stretch the substrate and the second material and to reduce the applied elongation; wherein the stretching device is capable of controlling the amount of light transmission by altering the orientation of the wrinkles as a function of applied strain; wherein the shading system is transparent when some of the wrinkles are oriented substantially parallel to the stretching direction and some of the wrinkles are oriented substantially perpendicular to the applied strain direction, wherein the stretching device applies strain and reduces the applied strain based on one or more environmental changes, pneumatic actuation, applied magnetic field, or applied electric field, wherein the one or more environmental changes include a change in temperature, humidity, or intensity of light.