Industrial Camera Matrix Geometric Alignment for 3D Imaging
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Solution Overview
Problem
Existing methods for obtaining three-dimensional images using a digital camera matrix suffer from limited precision and accuracy due to geometric inconsistencies in camera positioning and optical axis alignment, which restricts the measurement range and image acquisition capabilities.
Innovation Solution
An image acquisition apparatus with a matrix structure where lenses and photosensitive elements are integrated on the same substrates, ensuring precise geometric alignment and parallelism, allowing for reduced inter-lens distances and improved integration, facilitating higher precision and accuracy in three-dimensional image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If four digital cameras are installed on a fixed mechanical structure with precise positioning, then the geometric precision of the camera matrix structure is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent merges multiple camera modules into a single integrated camera matrix structure where multiple photosensitive elements share common optical components and housing. This integration eliminates the need for separate mechanical positioning structures for each camera, reducing overall device complexity while maintaining geometric precision through unified manufacturing processes.
Solution Approach 2:
The patent uses standardized, identical camera module designs that can be replicated and assembled into the matrix structure. By copying proven single-camera designs into a multi-camera array, the system achieves consistent geometric relationships without requiring complex custom positioning mechanisms for each element.
2Strength
If the minimal distance between lenses is maintained at the width of one digital camera housing, then the structural integrity is preserved, but the photographing range is limited and close objects cannot be imaged
Solution Approach 1:
The patent combines multiple camera modules into a compact matrix arrangement where shared housing and optical paths reduce the effective distance between functional elements. This merging allows the system to maintain structural integrity while achieving a smaller overall footprint and closer effective lens spacing for enhanced close-object imaging capability.
3Device complexity
If cameras are mounted on a mechanical structure with manufacturing inconsistencies, then the device complexity is reduced, but the photosensitive elements cannot be kept on the same horizontal plane and optical axes cannot be aligned
Solution Approach 1:
The patent merges the positioning function into the integrated camera matrix housing itself, eliminating separate mechanical positioning structures. This unified structure ensures that photosensitive elements are manufactured at precise, predetermined positions with consistent geometric relationships, achieving high alignment precision without complex assembly mechanisms.
4Device complexity
If ex post calibration is used to compensate for manufacturing errors, then the device complexity is reduced, but the precision and accuracy of three-dimensional calculation are greatly affected
Solution Approach 1:
The patent performs geometric precision assurance during the manufacturing process itself through integrated construction and precise positioning features built into the camera matrix structure. By establishing accurate geometric relationships beforehand rather than correcting them later through calibration, the system maintains high three-dimensional calculation precision while simplifying the overall process.
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
This approach enhances the precision and accuracy of three-dimensional image acquisition, expands the measurement range, and integrates the cameras into a more compact, miniaturized system, improving manufacturing and fabrication processes.
Implementation Method 1
A lens matrix is provided on the first substrate... A photosensitive element matrix is provided on a surface of the second substrate facing the first substrate, and each of the photosensitive elements in the photosensitive element matrix is disposed in one-to-one correspondence with each of the lenses
Data Source
AI summary
Provided is an image acquisition apparatus based on an industrial digital camera matrix, comprising a first substrate and a second substrate arranged in parallel. The first substrate is provided with a lens matrix, and axes of various lenses in the lens matrix are respectively perpendicular to a plane where the first substrate is located; and a surface, towards the first substrate, of the second substrate is provided with a photosensitive element matrix, and various photosensitive elements in the photosensitive element matrix are arranged in one-to-one correspondence with the various lenses.