Light-Directed Detection Device for Adaptive Sensor Illumination
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Solution Overview
Problem
Existing detection devices face reduced detection accuracy due to varying light amounts applied to detection elements, influenced by the types and conditions of objects, culture vessels, and culture media, leading to inconsistent light application beyond the detection range.
Innovation Solution
A detection device with a planar configuration of photodetection elements and corresponding point light sources, utilizing a light directivity control element and a detection circuit to control light amounts, compare sensor values, and set optimal light emission for accurate detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light sources emit light at fixed amounts, then device operation is simple, but detection accuracy deteriorates due to varying light transmission through different objects and media
Solution Approach 1:
The light emitting elements are configured to emit light at different light amounts dynamically, allowing the system to adapt to varying transmission conditions through objects and media. This dynamic light emission capability enables the detection element to receive light within its detection range regardless of the transmission characteristics, thereby improving detection accuracy without requiring complex manual adjustment mechanisms.
Solution Approach 2:
The system changes the light amount parameter of the light emitting elements based on the transmission characteristics of the objects and media. By adjusting the light amount parameter dynamically, the system ensures that sufficient light reaches the detection element within its detection range, resolving the contradiction between maintaining simple operation and achieving high detection accuracy under varying conditions.
2Measurement precision
If light amount varies to match different detection conditions, then detection accuracy improves, but control complexity increases
Solution Approach 1:
The detection device automatically adjusts the light emission amounts of the light emitting elements based on the detection requirements and transmission conditions. This self-service mechanism eliminates the need for manual intervention to adjust light amounts for different objects and media, thereby improving detection accuracy while maintaining ease of operation. The system autonomously optimizes light emission to ensure the detection element receives light within its detection range.
3Adaptability or versatility
If multiple light amounts are emitted for different conditions, then adaptability improves, but device complexity increases
Solution Approach 1:
The light emitting elements are designed with dynamic light emission capability, allowing them to emit light at different light amounts depending on the detection conditions and transmission characteristics of objects and media. This dynamic adaptability enables the system to handle diverse detection scenarios without requiring separate fixed-light-source systems for each condition, thereby improving versatility while controlling overall system complexity.
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
Enhances detection accuracy by ensuring consistent light application to photodetection elements, enabling precise imaging of objects despite variations in object and medium conditions.
Implementation Method 1
the light emitted from the light-emitting elements enters the photodetection elements through the culture medium and the cells (objects to be detected) in the culture vessel
Implementation Method 2
the photodetection elements are configured to output sensor values corresponding to the light amounts
Data Source
AI summary
A detection device includes: a planar detection device including photodetection elements; point light sources provided correspondingly to the photodetection elements; a light directivity control element disposed between the point light sources and the photodetection elements; and a detection circuit electrically coupled to the photodetection elements. Each point light source corresponds to at least one of the photodetection elements. In a light amount setting mode, the point light sources are lit up at different light amounts; the photodetection elements output sensor values corresponding to the different light amounts; the sensor values that are detected are compared with a preset target sensor value; and light amounts for detection of the point light sources are set. In a detection mode, the point light sources are lit up at the set light amounts for detection; and the photodetection elements output sensor values corresponding to the light amounts for detection.