Skin Imaging Holder With Polarized Lighting for Consistent Capture
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Solution Overview
Problem
Existing smartphone-based skin analysis applications face challenges in maintaining consistent photographing environments due to difficulties in focusing, positioning, and lighting variations, and the cost and compatibility issues with dedicated attachments.
Innovation Solution
A photography aid tool and skin photographing device with a portable device holder, illumination device, and polarizing filters, designed to stabilize smartphone positioning and lighting for consistent image capture, using a smartphone application for skin analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dedicated attachment with photographic lens and lighting device is used, then photographing accuracy and consistency are improved, but cost increases and compatibility with various smartphone shapes decreases
Solution Approach 1:
The holder body is designed with a universal structure that can accommodate multiple smartphone models and shapes through adjustable clamping mechanisms and flexible positioning, allowing the same device to work with various smartphone form factors without requiring model-specific attachments
Solution Approach 2:
The holder acts as an intermediary device between the smartphone and the photographing process, providing a standardized interface that mediates between different smartphone shapes and the fixed photographing requirements, enabling compatibility without compromising accuracy
2Measurement precision
If a dedicated attachment with photographic lens and lighting device is used, then photographing accuracy and consistency are improved, but device cost increases
Solution Approach 1:
The holder is designed as an inexpensive, simple structure made from cost-effective materials that can be mass-produced, replacing expensive dedicated attachments with a budget-friendly solution that maintains photographing accuracy while significantly reducing device cost
Solution Approach 2:
The invention extracts only the essential functions needed for accurate photographing (positioning and lighting control) from expensive dedicated attachments, separating these functions from costly components like specialized lenses, thereby achieving accuracy at lower cost
3Ease of operation
If selfie-like photographing method is used, then ease of operation is improved, but photographing consistency and analytical accuracy decrease
Solution Approach 1:
The holder pre-positions the smartphone at the optimal distance and angle for skin photographing before the user takes the shot, and provides structured lighting through integrated guides, eliminating the need for users to manually adjust positioning while ensuring consistent, analysis-ready images
Solution Approach 2:
The holder serves as an intermediary that mediates between the user's simple operation and the complex requirements for consistent photographing, translating ease of use into measurement precision by automatically enforcing proper positioning and lighting conditions
4Ease of operation
If photographing is performed at different times and locations, then flexibility and ease of operation are improved, but lighting environment consistency deteriorates
Solution Approach 1:
The holder pre-configures the lighting environment by incorporating lighting guides and positioning structures that standardize illumination conditions before photographing begins, ensuring consistent lighting regardless of external environmental variations at different times and locations
Solution Approach 2:
The holder creates a controlled, isolated photographing environment that shields against external lighting variations, effectively creating an 'inert' atmospheric condition where consistent illumination is maintained independent of external time and location factors
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, cost-effective, and accurate skin analysis by ensuring consistent photographing conditions, allowing for high-quality image capture and analysis regardless of time and location changes.
Implementation Method 1
a photography polarizing filter for the photographing device and an illumination polarizing filter for the illumination device
Data Source
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AI summary
Provided are a photography aid tool and a skin photographing device used for photographing skin. A main body (11) is used for photographing skin with a portable device having a photographing device and an illumination device, and is composed of a front plate (12), a rear plate (13) and a plurality of side plates (14). The main body (11) has an insertion opening (15a), a partition (16) with two openings, and a portable device holder (17) for holding the portable device. A polarizing filter is provided at the opening of the partition (16). The portable device is held by the portable device holder (17), and the skin photographing window (12a) of the front plate (12) is in contact with the skin. The skin surface is photographed using only the light from the illumination device of the portable device while light outside the main body (11) is blocked.