Mobile Device Hyperspectral Imaging Attachment
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Solution Overview
Problem
Hyperspectral/multispectral imaging technologies are costly and inconvenient for routine medical applications due to the need for complex optics and clinical settings, limiting their use in medical diagnostics.
Innovation Solution
A portable attachment device for external devices like smartphones, which includes a filter housing with a motor-driven system to intercept optical paths, allowing for hyperspectral/multispectral imaging using a series of filters and controlling an external imager and light source via a communications interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional hyperspectral/multispectral imaging instruments are used, then imaging precision and spectral resolution are improved, but device cost and system complexity increase significantly
Solution Approach 1:
The patent divides the spectral imaging function into discrete wavelength bands, with each band captured by a separate filter element in the filter wheel. This segmentation allows the system to achieve high spectral resolution through multiple sequential measurements rather than requiring complex simultaneous spectral separation optics.
Solution Approach 2:
The patent replaces complex optical spectral separation systems with a mechanical filter wheel that sequentially positions different wavelength-specific filters in the optical path. This mechanical approach simplifies the overall optical system while maintaining the ability to resolve multiple spectral bands.
2Measurement precision
If traditional hyperspectral/multispectral imaging instruments are used, then spectral imaging capability is improved, but cost of the device increases to tens or hundreds of thousands of dollars
Solution Approach 1:
The patent employs relatively inexpensive optical components including standard filters, a simple filter wheel mechanism, and a conventional imager. These components can be manufactured at low cost compared to specialized hyperspectral instruments, making the system economically viable for routine clinical use.
Solution Approach 2:
The patent designs a system that can be integrated with existing mobile devices and imaging equipment, allowing a single platform to perform both standard imaging and hyperspectral/multispectral imaging functions. This multi-functionality reduces the need for separate specialized instruments.
3Measurement precision
If traditional hyperspectral/multispectral imaging is used in clinical settings, then diagnostic accuracy is improved, but administrative and professional costs increase
Solution Approach 1:
The patent enables the imaging system to be operated by trained clinical staff rather than requiring specialized operators or researchers. The automated filter wheel and integrated control system allow users to perform spectral imaging routines with minimal training, reducing dependence on expert operators.
Solution Approach 2:
The patent employs an automated filter wheel that dynamically switches between different wavelength filters based on the imaging protocol. This dynamic operation allows the system to adapt to different diagnostic needs without manual intervention, improving workflow efficiency in clinical settings.
4Measurement precision
If traditional hyperspectral/multispectral imaging is used, then imaging capability is improved, but requirement for clinical environment and subject visits increases
Solution Approach 1:
The patent replaces bulky, fixed optical tables and complex mechanical spectrometer systems with a compact, motorized filter wheel assembly that can be mounted on mobile devices. This mechanical simplification enables the system to be deployed in various locations including patient rooms, clinics, and even home settings.
Solution Approach 2:
The patent integrates the spectral imaging system with existing mobile imaging devices, allowing the same equipment to function in both traditional clinical environments and point-of-care settings. This versatility eliminates the need for separate specialized imaging rooms or facilities.
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 cost-effective, rapid, and mobile hyperspectral/multispectral imaging, reducing administrative and professional costs, and allowing for imaging outside traditional clinical environments.
Implementation Method 1
A filter in the plurality of filters is characterized by a wavelength range in a plurality of wavelength ranges. The filter is transparent to the wavelength range and opaque to other wavelengths in at least the visible spectrum.
Implementation Method 2
The filter housing is movable along or about an axis to thereby selectively intercept the first optical path. A motor, in the interior of the casing, is configured to move the filter housing.
Data Source
AI summary
An attachment device comprising a cover, with first and second windows, is affixed to a backing, with third and fourth windows, thereby forming a casing. The first and third windows form a first optical path with light entering the third window passing through the first window. The second and fourth windows form a second optical path with light entering the second window passing through the fourth window. A filter housing with a plurality of filters is driven by a motor so that the filters intercept the first optical path in accordance with an imaging regimen electronically stored in the casing interior. The imaging regimen communicates instructions, via a communications interface of the attachment device, to an imager and light source of an external device, to which the attachment device is attached, thereby controlling these components in accordance with the regimen.