Light-Based Protractor for Angle-Dependent Coating Matching
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Solution Overview
Problem
The complexity of modern coatings, particularly those with angle-dependent characteristics such as textured finishes, makes it difficult to verify matching across different components of a vehicle or other objects, especially on non-planar surfaces, without damaging the coating.
Innovation Solution
A light-based protractor system comprising an optically interactive component that reflects, refracts, transmits, or polarizes light at specific angles, used in conjunction with a digital camera and computer system to identify and validate coating characteristics by mapping angular indications to viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional visual inspection methods are used to verify coating matches, then the process is simple and quick, but it is unreliable for angle-dependent coatings and requires human subjectivity
Solution Approach 1:
The patent replaces manual visual inspection with an automated optical measurement system. A digital camera captures images of the coating at specific angles, and computer processing automatically analyzes the angular color characteristics, eliminating human subjectivity and improving reliability without requiring complex manual measurement devices
Solution Approach 2:
The patent introduces a light-based protractor as an intermediary tool that provides reference angle markings in the captured images. This intermediary element enables the system to accurately determine viewing angles and map them to coating characteristics, making the automated measurement reliable and objective
2Measurement precision
If multiple manual measurements at different angles are performed, then angle-dependent characteristics can be assessed, but the process is time-consuming and labor-intensive
Solution Approach 1:
The patent performs preliminary action by capturing multiple angular views of the coating in a single photograph rather than requiring sequential manual measurements. The light-based protractor provides pre-marked angle references that are all visible simultaneously in the image, allowing the system to analyze multiple angles at once and significantly improving verification speed
Solution Approach 2:
The patent creates a digital copy of the coating appearance at multiple angles through photography. The captured image serves as a permanent record that can be processed computationally to extract angular color characteristics, replacing the need for repeated physical measurements and enabling fast, automated analysis
3Measurement precision
If conventional colorimeters or spectrophotometers are used, then objective color data can be obtained, but the devices are expensive and require controlled lighting conditions
Solution Approach 1:
The patent makes the measurement system universal by using a standard digital camera that can function for both general photography and precise color measurement. The system includes a light-based protractor with angle markings that works with any digital camera, eliminating the need for specialized expensive equipment while maintaining measurement precision through computational methods
Solution Approach 2:
The patent replaces complex specialized color measurement instruments with a simple digital camera combined with computational analysis. The angle-dependent color information is extracted through image processing algorithms rather than specialized optical sensors, simplifying the hardware while maintaining measurement capability
4Reliability
If coatings are tested on non-planar surfaces, then real-world application accuracy is improved, but measurement consistency becomes difficult to maintain
Solution Approach 1:
The patent addresses non-planar surfaces by capturing images in three-dimensional space rather than requiring flat surface placement. The light-based protractor provides angle references that work regardless of surface curvature, and the digital camera captures the coating appearance from various viewing angles, allowing accurate measurement on complex geometries while maintaining consistency through standardized angular sampling
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 efficient and non-destructive verification of coating matches by identifying angle-dependent characteristics, allowing for automated validation of coating specifications across non-planar surfaces.
Implementation Method 1
an optically interactive component that reflects, refracts, transmits, or polarizes light at specific angles
Implementation Method 2
an optically interactive component that reflects, refracts, transmits, or polarizes light at specific angles
Implementation Method 3
an optically interactive component that reflects, refracts, transmits, or polarizes light at specific angles
Data Source
AI summary
A system for detection and coating analysis that comprises a digital camera and a light-based protractor positioned adjacent to or on a physical coating surface. The system identifies a particular angular indication being displayed by the light-based protractor. The system then identifies a target color of the physical coating surface and identifies one or more target coating texture characteristics of the physical coating surface. Additionally, the system identifies a proposed coating that comprises a proposed color that matches the target color and proposed coating characteristics that match the one or more target coating texture characteristics. The system then displays, on a user interface, the proposed coating.