Electrochromic Camera Module with Integrated Filter Layer
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Solution Overview
Problem
Conventional camera filters that block infrared and ultraviolet light to improve visual effects are bulky and interfere with different wavelengths of light, leading to image quality issues and increased camera size.
Innovation Solution
An electrochromic module with stacked conductive layers and an electrochromic filter layer that adjusts light transmission based on applied voltages, allowing independent control of light wavelengths and colors, integrated into a camera module with conductive layers or flexible printed circuits for easy connection to a circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional filter is added to block infrared and ultraviolet light, then the visual effect is improved, but the camera size increases and light wavelength interference occurs
Solution Approach 1:
The patent combines the filter layer with the electrochromic layer into a single integrated structure. The filter layer is positioned between the electrochromic layer and the image sensor, allowing both filtering and electrochromic functions to coexist in one compact unit, thus improving visual effect without significantly increasing camera size
Solution Approach 2:
The electrochromic module serves multiple functions: it acts as both a filter for blocking unwanted wavelengths and an electrochromic element for adjustable light transmission. This multi-functionality allows the system to improve visual effect while maintaining compact dimensions through a single component performing multiple roles
2Illumination intensity
If a conventional filter is added to block infrared and ultraviolet light, then the visual effect is improved, but light wavelength interference occurs during filtering
Solution Approach 1:
The patent segments the light filtering function into two parts: the filter layer handles the blocking of infrared and ultraviolet light, while the electrochromic layer provides adjustable transmission for visible light wavelengths. This segmentation allows each layer to specialize in specific wavelength ranges, reducing interference between different wavelengths
Solution Approach 2:
The electrochromic layer provides dynamic control over light transmission by changing its optical properties in response to applied voltage. This dynamic adjustment capability allows the system to optimize light transmission for different conditions, reducing wavelength interference by adaptively controlling which wavelengths reach the image sensor
3Illumination intensity
If a conventional filter is added to block infrared and ultraviolet light, then the visual effect is improved, but the filter has large volume
Solution Approach 1:
The patent merges the filter layer with the electrochromic layer into a single integrated module. The filter layer is positioned adjacent to the electrochromic layer, allowing both functions to be implemented in a compact configuration that minimizes overall volume while maintaining effective filtering and electrochromic performance
Solution Approach 2:
The patent uses thin film structures for both the filter layer and electrochromic layer. These thin films provide the necessary filtering and electrochromic functions with minimal thickness, significantly reducing the volume of the filter assembly compared to conventional bulk filters
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
Enables precise modulation of light wavelengths, reduces interference between different light types, and provides a compact camera design with improved image quality and security features, such as adjustable color and partial occlusion capabilities.
Implementation Method 1
at least one electrochromic unit 3 between two first substrates 1. Each of the electrochromic unit 3 includes a first conductive layer 31, a filter layer 32, and a second conductive layer 33 stacked in that turn... configured to connect to a power supply 4
Data Source
AI summary
An electrochromic module includes two opposite positioned first substrates and at least one electrochromic unit disposed between the first substrates. Each of the electrochromic unit includes a first conductive layer, a filter layer, and a second conductive layer stacked in turn. One end of the first conductive layer protrudes from an edge of the filter layer to form a first electrode area. One end of the second conductive layer protrudes from another edge of the filter layer to form a second electrode area. Vertical projections of the first electrode area and the second electrode area on the first substrates are spaced apart from each other. Each of the first electrode area and the second electrode area is configured to connect to a power supply. The electrochromic module can make it easy to connect the electrochromic unit to the power supply.