Electrochromic Optical Device with Textured Layer for Light Distribution
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Solution Overview
Problem
Existing optical devices that change with electricity cannot effectively direct light to a desired direction for optimal light distribution and control.
Innovation Solution
An optical device comprising a light-transmissive first electrode, a light-transmissive second electrode, a refractive index adjustment layer with adjustable refractive index in the visible light to near-infrared range, and a textured layer providing an uneven surface, controlled by sensors and a controller to manage voltage for light distribution states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-adjusting element uses an electrolyte layer with electrochromic material to form a mirror state, then light reflection capability is improved, but the ability to change light direction to a desired direction deteriorates
Solution Approach 1:
The optical device is segmented into multiple functional layers: a refractive index adjustment layer for light direction control and a textured layer for light distribution. This segmentation allows each layer to perform its specific function independently, resolving the contradiction between light reflection and light direction control
Solution Approach 2:
The refractive index adjustment layer dynamically changes its refractive index in response to applied voltage, enabling transition between different optical states (transparent state and light-distributing state). This dynamic property allows the device to adapt light direction based on operational requirements
2Adaptability or versatility
If the refractive index adjustment layer is made variable between transparent state and light distribution state, then light distribution capability is improved, but device complexity increases
Solution Approach 1:
The refractive index adjustment layer serves multiple functions: it acts as both a transparent state layer and a light-distributing state layer depending on the applied voltage. This multi-functionality reduces the need for separate components, thereby managing device complexity while enhancing adaptability
Solution Approach 2:
The device utilizes changes in the refractive index parameter of the adjustment layer to achieve different optical states. By controlling this physical parameter through voltage application, the device achieves versatile light distribution capabilities without requiring complex mechanical or structural changes
3Measurement precision
If sensors and controllers are added to detect and control near-infrared light, then light control precision is improved, but device complexity increases
Solution Approach 1:
The control system incorporates sensors that detect near-infrared light and provide feedback to the controller. This feedback mechanism enables precise control of the refractive index adjustment layer by monitoring actual light conditions and adjusting voltage accordingly, improving measurement precision while managing complexity through intelligent control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The optical device achieves good optical properties by creating transparent and light distribution states, allowing for effective light direction change and distribution, enhancing its application in various settings.
Implementation Method 1
a refractive index adjustment layer (15) provided between the first electrode (13) and the second electrode (14) and having a refractive index that is adjustable in an arbitrary wavelength band from a visible light range to a near-infrared range
Implementation Method 2
a textured layer (16) in the form of a film that gives the refractive index adjustment layer (15) an uneven surface
Data Source
AI summary
An optical device includes a first electrode, a second electrode, a refractive index adjustment layer, and a textured layer. The first electrode is light-transmissive. The second electrode is light-transmissive and electrically paired with the first electrode. The refractive index adjustment layer is provided between the first electrode and the second electrode and has a refractive index that is adjustable in an arbitrary wavelength band from the visible light range to the near-infrared range. The textured layer gives the refractive index adjustment layer an uneven surface and is in the form of a film. The refractive index adjustment layer is variable between a transparent state and a state of distributing incident light.