Optical Sensing Assembly With Segmented Light-Blocking Structure
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Solution Overview
Problem
Conventional non-invasive blood glucose detection devices suffer from issues such as complicated manufacturing processes, low yield, high cost, fixed module configuration, and inaccurate measurements due to light leakage and improper fitting, which affect measurement accuracy.
Innovation Solution
A light-sensing device with individually mounted light-emitting and light-sensing components, surrounded by a light-blocking component, and equipped with a pressure-sensitive component to ensure proper fitting, allowing for flexible module configuration and accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional multi-chip module with half-cut and glue-dispensing structure is used, then light-blocking between components is achieved, but ambient light entry and light leakage are not prevented, and the manufacturing process becomes complicated with low yield
Solution Approach 1:
The light-blocking function is segmented into multiple independent components: a first light-blocking component between light-emitting and light-sensing components, and a second light-blocking component surrounding the entire multi-chip module. This segmentation allows each component to perform its specific light-blocking function independently, improving overall light-blocking efficiency while simplifying the manufacturing process by allowing modular assembly
Solution Approach 2:
The patent introduces intermediary light-blocking components that act as mediators between the light-emitting components and the external environment. These components prevent unwanted light interaction without requiring complex manufacturing processes, serving as simple yet effective barriers that improve light-blocking efficiency
2Ease of manufacture
If a fixed multi-chip module configuration is used, then manufacturing is simplified, but defective chips cannot be replaced and module flexibility is reduced
Solution Approach 1:
The multi-chip module is segmented into individually mounted light-emitting components and light-sensing components on the substrate. This segmentation allows for flexible configuration where components can be independently positioned and replaced, maintaining manufacturing simplicity while enabling adaptability for different application requirements and facilitating defect replacement
Solution Approach 2:
The patent introduces dynamic configurability to the module design, allowing the arrangement and configuration of light-emitting and light-sensing components to be adjusted based on specific application needs. This dynamic approach maintains ease of manufacture through standardized mounting processes while significantly improving adaptability and versatility
3Ease of operation
If the device is worn loosely or tightly, then user comfort is affected, but optical signal loss occurs or measurement accuracy is distorted
Solution Approach 1:
The patent incorporates a pressure-sensitive component that provides feedback on the device's contact pressure with the user's body. This feedback mechanism allows the system to detect and compensate for improper fitting conditions, maintaining measurement accuracy while ensuring user comfort through automated adjustment or warning mechanisms
Solution Approach 2:
The patent utilizes parameter changes in the pressure-sensitive component to detect and respond to different wearing conditions. By monitoring pressure parameters, the system can adjust optical parameters or trigger warnings to maintain optimal measurement conditions, balancing user comfort with measurement precision
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
The solution enhances light-blocking efficiency, increases module yield, reduces production costs, and improves measurement accuracy by preventing light leakage and ensuring proper device fitting, thereby enhancing the flexibility and accuracy of glucose monitoring.
Implementation Method 1
a light-emitting component and a light-sensing component, wherein the light-emitting component is used to emit a light
Implementation Method 2
the light-sensing component is used to receive the diffuse-reflected light after the light is diffuse-reflected by an external object
Implementation Method 3
a light-blocking component designed as a half-cut and glue-dispensing structure... can only block the light transmission between the light-sensing component and the light-emitting component
Data Source
AI summary
A light-sensing device and a manufacturing method thereof are provided. The light-sensing device includes a substrate, at least one light-emitting component and a light-sensing component. The light-emitting component is used to emit a light, and the light-sensing component is used to receive the diffuse-reflected light after the light is diffuse-reflected by an external object. Moreover, the light-emitting component and the light-sensing component are individually and separately mounted on the substrate.