Multi-Angle Optical Detection Layout for Irregular Surface Inspection
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Solution Overview
Problem
Modern optical instruments face challenges in automating the detection of defects on objects with irregular shapes or curved surfaces, requiring manual operation and intuitive visual inspection, which lacks consistency and precision.
Innovation Solution
An optical detection device with a 3D optical detection instrument aligned along a central axis and surrounded by 2D optical detection instruments, providing illumination and capturing 2D images from different angles, mimicking human visual inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual visual inspection is used to detect defects on objects with irregular shapes or curved surfaces, then detection flexibility and adaptability are improved, but detection consistency, precision, and productivity deteriorate
Solution Approach 1:
The detection system is segmented into multiple independent 2D optical detection instruments arranged around the central axis, with each instrument dedicated to capturing images from a specific viewing angle. This segmentation allows each detector to specialize in its designated angular range, improving overall detection precision while maintaining adaptability through the coordinated operation of multiple specialized units.
Solution Approach 2:
The system transitions from single-point detection to multi-dimensional detection by arranging 2D optical detection instruments around the central axis in three-dimensional space. Each detector captures images from its specific angular position, creating a comprehensive multi-angle view that enables precise detection of defects on irregular shapes and curved surfaces while maintaining automation and consistency.
2Device complexity
If a single 3D optical detection instrument is used to detect objects, then device complexity is reduced, but detection precision and ability to capture multi-angle information deteriorate
Solution Approach 1:
Multiple 2D optical detection instruments are merged into a coordinated system arranged around the central axis, where each instrument captures images from its specific viewing angle. The combined output of these multiple detectors provides comprehensive multi-angle information that enhances detection precision, while the instruments share a common structural framework that manages system complexity.
Solution Approach 2:
Each 2D optical detection instrument is designed with multi-functionality, capable of capturing images from its specific angular position while contributing to the overall detection system. The instruments universally detect defects on objects with irregular shapes and curved surfaces from their respective viewpoints, providing comprehensive coverage without requiring overly complex individual components.
3Measurement precision
If multiple 2D optical detection instruments are arranged around the central axis to capture images from different angles, then detection precision and information richness are improved, but device complexity and arrangement complexity increase
Solution Approach 1:
The 2D optical detection instruments are asymmetrically arranged around the central axis at different angular positions, with each detector oriented to capture images from its specific viewing angle. This asymmetric arrangement optimizes detection precision by positioning detectors at strategically determined angles, while the symmetric circular pattern simplifies the overall structural design and control of the system.
4Measurement precision
If illumination is provided to the predetermined region to enhance image quality, then detection precision is improved, but energy consumption and device complexity increase
Solution Approach 1:
Illumination is provided to the predetermined region before image capture to ensure optimal lighting conditions for detection. The illumination is activated in advance to allow the 2D optical detection instruments to capture high-quality images from their respective angles, improving detection precision while the illumination duration is optimized to minimize energy consumption.
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 precision and efficiency by obtaining richer image information from multiple angles, reducing the need for manual inspection and improving reliability and reproducibility.
Implementation Method 1
each of the plurality of 2D optical detection instruments has a 2D detection lens, a lens direction of each of the 2D detection lenses is arranged offset from the central axis, and each of the 2D detection lenses is configured to capture 2D images of the object positioned in the predetermined region based on a preset optical path
Implementation Method 2
a 3D optical detection instrument, disposed along a central axis parallel to a first direction and having a 3D detection lens, wherein a lens direction of the 3D detection lens is oriented toward a predetermined region located apart from the 3D detection lens to detect 3D information of an object positioned in the predetermined region
Implementation Method 3
an illumination module, arranged around the central axis and between the 3D detection lens and the predetermined region and configured to provide an illumination light to the predetermined region
Data Source
AI summary
An optical detection device including an optical detection module and an optical detection method are disclosed. The optical detection module includes: a 3D optical detection instrument, disposed along a central axis parallel to a first direction and having a 3D detection lens with the lens direction oriented toward a predetermined region aligned with the central axis to detect its 3D information; an illumination module, arranged around the central axis between the 3D detection lens and the predetermined region, providing an illumination light to the predetermined region; and a 2D detection module, including a plurality of 2D optical detection instruments arranged around the central axis, wherein each 2D optical detection instrument has a 2D detection lens. The lens direction of the 2D detection lens is arranged offset from the central axis and configured to capture 2D images of the object positioned in the predetermined region based on a preset optical path.