Wearable Optical Activity Detector with Integrated Polarization Module
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Solution Overview
Problem
Conventional optical activity detecting devices are complex, costly, and large, making them difficult to move and unable to perform continuous non-invasive detection.
Innovation Solution
A compact optical activity detecting device with a simplified structure, integrating a light source, filter, polarizers, compensation films, and detectors, which can be worn on the head, utilizing edge-emitting semiconductor lasers, organic or inorganic light sources, and detectors like Si, GaAs, and InGaAs, with phase differences between polarizers optimized for detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional light source and optical analyzer are used, then detection capability is achieved, but device complexity and cost increase
Solution Approach 1:
The patent combines the light source, filter, first polarizer, second polarizer, compensation film, and detector into a single integrated optical module. This merging of multiple components into one compact unit reduces device complexity and cost while maintaining the detection capability for optical activity measurements.
Solution Approach 2:
The optical module is designed to perform multiple functions within a single compact structure: light generation, wavelength filtering, polarization control, optical activity detection, and signal detection. This multi-functionality eliminates the need for separate conventional light sources and optical analyzers, reducing overall device complexity.
2Reliability
If conventional optical activity detecting device structure is used, then detection function is provided, but device size becomes huge and mobility is reduced
Solution Approach 1:
The patent integrates all optical components (light source, filter, polarizers, compensation film, and detector) into a single compact optical module, dramatically reducing the device size and weight compared to conventional separate-component systems, while maintaining full detection functionality.
Solution Approach 2:
The optical components are nested within a compact module structure where the filter, polarizers, and compensation film are arranged in sequence within a small volume, allowing the entire optical path to be contained in a portable form factor suitable for wearable applications.
3Reliability
If conventional optical activity detecting device is used, then detection is possible, but continuous non-invasive detection cannot be realized
Solution Approach 1:
The integrated optical module enables continuous non-invasive detection by consolidating all necessary components into a portable unit that can be worn close to the measurement site, allowing for uninterrupted monitoring without requiring complex external equipment setups.
Solution Approach 2:
The device is designed as a wearable system that can be dynamically positioned and worn by the user during normal activities, enabling continuous detection in real-world conditions rather than requiring stationary operation in controlled environments.
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 continuous non-invasive detection with a smaller, more affordable device that can be easily carried, simplifying the structure while maintaining effective detection capabilities.
Implementation Method 1
The light source provides a light beam
Implementation Method 2
The light beam travels from the light source, passes through the filter and the first polarizer
Implementation Method 3
The phase difference between the first polarizer and the second polarizer is 90 degrees or 0 degrees
Implementation Method 4
At least a portion of the light beam travels from the object, passes through the second polarizer and the first compensation film and is received by the first detector
Data Source
AI summary
An optical activity detecting device is provided. The optical activity detecting device is adapted to detect an object. The optical activity detecting device includes a light source, a filter, a first polarizer, a second polarizer, a first compensation film and a first detector. The light source provides a light beam. The light beam travels from the light source, passes through the filter and the first polarizer, and enters the object. At least a portion of the light beam travels from the object, passes through the second polarizer and the first compensation film and is received by the first detector.