Imaging Device Continuous Polarized Light Switching
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Solution Overview
Problem
Current dermoscopy imaging devices require multiple operations to capture images with different light sources and filter settings, leading to inefficiencies and inconsistencies in image quality due to differences in exposure, white balance, and angle of view.
Innovation Solution
An imaging device with a camera body, a light unit featuring multiple light sources (polarized and unpolarized LEDs) and a filter unit that allows for continuous imaging by switching between light sources and filter positions using a single shutter operation, ensuring consistent image capture with polarized and unpolarized light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple imaging operations are performed with different light sources and filter settings, then comprehensive disease site observation is achieved, but operational complexity and time consumption increase
Solution Approach 1:
The patent combines multiple light sources (polarized and unpolarized) and filter units into a single integrated imaging device. The camera body simultaneously supports multiple illumination modes and filter configurations, allowing comprehensive disease site observation through unified operation rather than separate imaging sessions.
Solution Approach 2:
The imaging device is designed with multi-functional capabilities to perform various imaging modes (polarized light imaging, unpolarized light imaging, and combined modes) through a single device. The filter unit can be configured in different states (attached or detached) to achieve different imaging effects, making the device universally applicable for comprehensive skin disease diagnosis.
2Adaptability or versatility
If multiple separate imaging operations are performed, then different light conditions are captured, but image consistency and quality uniformity deteriorate
Solution Approach 1:
By merging multiple light sources and filter units into one integrated system, the patent ensures that all imaging operations are performed through a single camera body with unified exposure, white balance, and angle of view settings. This eliminates the inconsistencies that arise from separate imaging operations while maintaining the flexibility to capture different light conditions.
3Measurement precision
If multiple imaging steps are required, then detailed disease site analysis is possible, but diagnostic time increases
Solution Approach 1:
The patent enables continuous imaging capability where the camera body can sequentially capture images under different light sources and filter configurations without requiring intermediate operations. The filter unit can be rapidly switched between attached and detached states, and the light sources can be alternated, allowing comprehensive disease site analysis to be completed in a single continuous imaging session rather than through multiple separate steps.
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 easy observation of disease sites with multiple images captured efficiently, reducing diagnostic time by eliminating the need for multiple operations and ensuring consistent image quality across different light settings.
Implementation Method 1
a light unit that is provided in the camera body and that includes a first light source and a second light source that have mutually different characteristics
Implementation Method 2
a filter unit that includes at least one independent filter, and that is capable of positioning the filter on an optical axis of the camera body and retracting the filter from the optical axis of the camera body
Data Source
AI summary
An imaging device that images a disease site as a subject includes a camera body, a light unit that is provided in the camera body and includes a first light source and a second light source that have different characteristics, and a filter unit that includes at least one independent filter capable of being positioned on and retracted from an optical axis of the camera body. The imaging device performs continuous imaging by imaging in a state in which the subject is illuminated with light from the first light source and, via a first mode, the filter is positioned on or retracted from the optical axis and, thereafter, imaging in a state in which the subject is illuminated with light from the second light source and, via a second mode that differs from the first mode, the filter is positioned on or retracted from the optical axis.