초록 ▼

Electrochromic windows and panels are provided which have first and second spaced elements that are optically transparent to visible light. The first and second elements each have first and second sides, and the windows and panels define a sealed chamber disposed between the second side of the first

Electrochromic windows and panels are provided which have first and second spaced elements that are optically transparent to visible light. The first and second elements each have first and second sides, and the windows and panels define a sealed chamber disposed between the second side of the first element and the first side of the second element. The sealed chamber is filled with an electrochromic medium, and the transmission of visible light through the electrochromic medium is variable when an electrical potential is applied to electrically conductive coatings that are provided on the second side of the first element and the first side of the second element. A layer partially transmissive of visible light and partially reflective of visible light is provided on one of the sides of the first or second elements so that the application of electrical potential to the electrochromic medium causes variations in the visible light transmitted through the partially visible light transmissive and partially visible light reflective layer and through the electrochromic medium whereby privacy and changes in visible color of the electrochromic medium may be either enhanced in one embodiment of the invention or hidden in another embodiment of the invention.

대표청구항 ▼

[ What is claimed is:] [1.]1. An electrochromic structure comprising, in combination, first and second spaced visible light transparent elements, one side of said first element confronting said second element including a first visible light transmissive electrically conductive layer, one side of sai

[ What is claimed is:] [1.]1. An electrochromic structure comprising, in combination, first and second spaced visible light transparent elements, one side of said first element confronting said second element including a first visible light transmissive electrically conductive layer, one side of said second element confronting said first element including a second visible light transmissive electrically conductive layer, said structure having a chamber disposed between said first and second visible light transmissive electrically conductive layers on said first and second elements, an electrochromic reversibly variable visible light transmittance medium in said chamber in contact with one of said first or second visible light transmissive electrically conductive layers, one of said first or second transparent elements having a partially visible light reflective layer thereon, wherein said partially visible light reflective layer is in contact with said electrochromic medium, and means electrically connecting both said visible light transmissive electrically conductive layers on said first and second elements to apply an electrical potential to said electrochromic medium to cause variations in the visible light transmittance of said electrochromic medium.