Patent ID: 8801220
Filing Date: 2014-08-12
Classification: F21S,F21V,F21W

Abstract:
1. A color temperature adjusting device of a light source module comprising: a plurality of light source modules, each light source module having at least one light source and at least one electrochromic device disposed at one side of the light source with a light emitting surface, the electrochromic device switches between two color systems in colored/bleaching state and the two color systems are selected from the group consisting of cool colors and primary colors, warm colors and primary colors, and cool colors and warm colors; a plurality of control modules, each control module electrically connected to a corresponding one of the light source modules, each control module having at least one light-source driver circuit that drives at least one of the light sources; and at least one control circuit for electrochromic devices that controls the colored/bleached state of the electrochromic device; and a central control unit electrically connected to each of the control modules, the central control unit selectively controlling the control modules simultaneously and independently to generate a unique combined color temperature response, each of said electrochromic devices includes: a first module having a first substrate and a first transparent electrode layer disposed over the first substrate; a second module having a second substrate and a second transparent electrode layer arranged over the second substrate while the second transparent electrode layer is symmetric to the first transparent electrode layer; at least one electrolyte layer that is disposed between the first transparent electrode layer and the second transparent electrode layer and is for providing cations involved in electrochemical reactions; and at least one electrochromic layer set between the electrolyte layer and the first transparent electrode layer, said electrochromic layer is formed from a material selected from the group consisting of a transition metal oxide, hexacyanoferrate (Fe