Movable Color Filter Scanning for Full-Resolution Image Capture
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Solution Overview
Problem
Existing image capture devices have a lower resolution due to the need for multiple sensing units to record color information for each pixel, as each unit can only record intensity information, leading to inefficient color data collection.
Innovation Solution
An image capture device with a filter layer and micromotor system that moves filter units relative to sensing units, allowing each sensing unit to correspond with multiple filter units to capture color information, improving resolution by combining signals from different color lights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensing units are used to record color information for each pixel, then color information can be captured, but the image resolution becomes lower than the sensing component resolution
Solution Approach 1:
The filter layer is made movable relative to the sensing component through a micromotor-driven scanning mechanism. This dynamic configuration allows a single sensing unit to sequentially capture light through different filter units (red, green, blue) at different time points, eliminating the need for multiple fixed sensing units per pixel while maintaining color information accuracy and achieving full-resolution color images
Solution Approach 2:
The micromotor drives the filter layer to periodically scan across the sensing component in a cyclic manner. Each sensing unit sequentially receives red, green, and blue light in periodic cycles, enabling time-multiplexed color capture. This periodic scanning allows complete color information to be collected at each pixel position over time, resolving the contradiction between color accuracy and spatial resolution
2Device complexity
If each sensing unit records only intensity information, then the sensing process is simple, but color data collection becomes inefficient
Solution Approach 1:
The filter layer acts as an intermediary between the light source and the sensing units. By placing colored filters (red, green, blue) in the optical path, the system enables simple intensity-sensitive sensing units to capture color information indirectly. The filter layer separates and transmits specific wavelength bands to each sensing unit sequentially, achieving efficient color data collection without complicating the sensing units themselves
Solution Approach 2:
The filter layer is segmented into multiple filter units with different spectral transmission characteristics (red, green, blue filters). Each filter unit is independently positioned and scanned across the sensing component. This segmentation allows the system to collect complete color data by combining measurements from different filter units, significantly improving color data collection efficiency while maintaining simple sensing unit design
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
This approach enhances the resolving power of the sensing component, resulting in improved image resolution by allowing a single sensing unit to collect color information from multiple filter units, effectively refining the image capture process.
Implementation Method 1
each of the plurality of sensing units 11 is used for receiving a light signal and converting the light signal into an electrical signal
Implementation Method 2
The filter layer 30 includes a plurality of filter units 31 arranged in an array for transmitting lights of predetermined wavelength bands to the plurality of sensing units 11
Data Source
AI summary
An image capture device includes a sensing component, a filter layer, and a micromotor. The sensing component includes a plurality of sensing units arranged in an array. The filter layer is disposed on one side of the sensing component and includes a plurality of filter units arranged in an array. The micromotor includes a stator and a mover, the sensing component is fixed on the stator, the filter layer is fixed on the mover. The micromotor is used to drive the filter layer to move relative to the sensing component, such that the plurality of sensing units is moved to a one-to-one corresponding position relative to the plurality of filter units.