Method for changing states of electrochromic film
AssigneeFurcifer Inc.
InventorsJian Wang, Yan Zhou
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Abstract
The disclosure relates generally to a method of changing an optical state of an electrochromic film. The electrochromic film may have a plurality of optical states. The method may include selecting a desired state of the plurality of optical states; injecting electric charges into the electrochromic film; monitoring an amount of the electric charges injected into the electrochromic film; and stopping injecting the electric charges when the electric charges reaches a pre-set amount corresponding to the desired state.
Claims16
A method of changing an optical state of an electrochromic film in an electrochromic device, comprising:
- determining a color of the electrochromic film;
- determining an amount of adjustment to be applied to the color, wherein the determination of the amount of adjustment comprises determining a difference between the color and a target color of the electrochromic film;
- and
- in response to determining that the difference is greater than the threshold amount, injecting or removing an amount of electric charges into or from the electrochromic film until the difference is less than the threshold amount.
A method of changing an optical state of an electrochromic film in an electrochromic device, comprising:
- detecting a light intensity of external light, wherein the detecting of the light intensity comprises:
- simultaneously determining an amount of current generated during a process of providing a power to the electrochromic device;
- and
- detecting the light intensity based on a linear relationship between the light intensity and the amount of current generated;
- and
- adjusting a level of transmission of the electrochromic film based on the detected light intensity or a change in the detected light intensity.
A electrochromic device comprising:
- one or more layers of glass;
- one or more adhesive layers;
- an electrochromic film;
- and
- a controller configured to:
- detect a light intensity of external light, wherein the detecting of the light intensity comprises:
- simultaneously determining an amount of current generated during a process of providing a power to the electrochromic device;
- and
- detecting the light intensity based on a linear relationship between the light intensity and the amount of current generated;
- and
- adjust a level of transmission of the electrochromic film based on the detected light intensity or a change in the detected light intensity.
Dependencies are inferred from the claim text.