Patent ID: 8040609
Filing Date: 2011-10-18
Classification: F24S,H01L,Y02B,Y02E

Abstract:
1. A self-adjusting solar light transmission apparatus comprising: a sheet having opposing first and second boundary surfaces and comprising a material layer including a stimuli-responsive material (SRM) that is evenly distributed throughout the material layer, said material layer being disposed between the first and second boundary surfaces; and means for concentrating solar radiation directed onto said apparatus such that said solar radiation is concentrated in a focal zone disposed inside the material layer, wherein the SRM is characterized such that all of said SRM disposed in said material layer assumes a first state when a first amount of said concentrated solar radiation in said focal zone is below a predetermined first level, and such that a portion of said SRM disposed in said focal zone changes from the first state to a second state when said concentrated solar radiation in said focal zone increases from said first amount to a predetermined second amount while a remaining portion of said SRM disposed outside of said focal zone remains in said first state, the second state being more opaque than the first state, and wherein said material layer comprises a sufficient quantity of said SRM such that, when said portion of said SRM in the focal zone is in said second state, at least half of said concentrated solar radiation directed onto said focal zone is prevented by said predetermined portion from passing entirely through said sheet.