Multi-angle Colorimeter for Metallic Coating Glitter Index
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Solution Overview
Problem
The evaluation of metallic/pearl color coatings, which requires both color and texture assessment, particularly the glittering effect, is inefficient due to the need for separate devices, leading to increased size and cost.
Innovation Solution
A multi-angle colorimeter that incorporates a light emitting unit, a light amount detection unit, and an index calculation unit to assess the glittering effect by calculating an index based on optical parameters across various angles, using equations that weigh reflected light amounts at specific angles to determine the luminance of the glittering material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If color evaluation and texture evaluation are performed using separate devices, then measurement precision for both color and glittering effect is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines color evaluation and texture (glittering effect) evaluation into a single multi-angle colorimeter. The device integrates a light emitting unit, light amount detection unit, and index calculation unit that work together to measure both optical properties using the same hardware platform, thereby reducing device complexity while maintaining measurement precision through multi-angle detection
Solution Approach 2:
The multi-angle colorimeter is designed to perform multiple functions: it evaluates both color (through optical parameters) and texture/glittering effect (through the calculated index I). This universal device replaces the need for separate specialized instruments, achieving cost and space efficiency without sacrificing the precision of either measurement type
2Adaptability or versatility
If a digital camera is used for texture evaluation, then glittering effect measurement capability is improved, but the size of the entire evaluation system increases
Solution Approach 1:
The patent integrates glittering effect measurement capability directly into the multi-angle colorimeter by combining the light emitting unit, light amount detection unit, and index calculation unit. This merged system eliminates the need for a separate digital camera setup, reducing the overall evaluation system size while maintaining the ability to measure glittering effect through multi-angle light reflection detection
3Adaptability or versatility
If multiple separate devices are used for comprehensive coating evaluation, then measurement comprehensiveness is improved, but cost increases
Solution Approach 1:
The multi-angle colorimeter is designed as a universal evaluation device that performs both color evaluation (through optical parameters) and texture/glittering effect evaluation (through index I calculation). This single comprehensive device replaces multiple separate instruments, reducing cost while maintaining measurement comprehensiveness through its integrated multi-functional capability
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 allows for comprehensive evaluation of metallic and pearl coatings using a single device, reducing the size and cost by integrating color and texture assessment, including the glittering effect, within the multi-angle colorimeter.
Implementation Method 1
a light amount detection unit that receives the light emitted from the light emitting unit and reflected by the object in a plurality of directions of angles, and detects a reflected light amount in each of the angles
Data Source
AI summary
A multi-angle colorimeter includes an index calculation unit that calculates, based on a predetermined calculation formula, an index corresponding to luminance of a glittering material used in metallic coating or pearl coating by using optical parameters for color evaluation of the metallic coating or pearl coating on a surface of an object.