Full-Appearance Color Matching With Virtual Samples and Light Control
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Solution Overview
Problem
The existing color matching process in industries such as textile, printing, ink, and paint is inefficient and resource-intensive, requiring multiple iterations to determine product colors, leading to significant manpower and time consumption.
Innovation Solution
A full-appearance color matching method and device that uses a photometric instrument and light distribution light sources to measure and adjust colors on a substrate, allowing direct determination of XYZ tristimulus values under a standard light source, and stores the results electronically for accurate transmission and restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional color matching process with multiple iterations is used, then color accuracy can be achieved, but time consumption and resource waste increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-establishing a standard light source environment and calibrating the light distribution light source before color matching begins. The system pre-configures the observation environment with standard illuminants and pre-calibrates the photometric instruments, so that when color matching is performed, no iterative adjustments are needed. This eliminates the need for multiple proofing iterations while maintaining color accuracy.
Solution Approach 2:
The patent creates a virtual color sample that copies the appearance characteristics of the actual sample under standard light source conditions. By using a light distribution light source to illuminate a substrate with controlled spectral power distribution, the system generates a digital representation of the color that can be directly compared with target colors, eliminating the need for physical sample iterations.
2Measurement precision
If traditional color matching process with multiple iterations is used, then color accuracy can be achieved, but manpower and material resources are wasted
Solution Approach 1:
The patent replaces physical color samples with a virtual color sample created by illuminating a substrate with a controlled light distribution light source. This virtual sample can be generated digitally and adjusted without consuming physical materials. The system captures the appearance characteristics through photometric instruments and stores them as electronic data, eliminating the need to produce multiple physical proofs and reducing material waste.
Solution Approach 2:
The patent replaces the mechanical process of producing physical color samples with an optical and electronic system. Instead of manually creating and adjusting physical proofs, the system uses a light distribution light source with controllable spectral power distribution to generate colors optically, and uses photometric instruments to measure and store the data electronically, thereby reducing manpower and material resource consumption.
3Productivity
If virtual color sample with light distribution light source is used, then efficiency is improved, but device complexity increases
Solution Approach 1:
The patent designs the light distribution light source to serve multiple functions: it acts as both the illumination source for creating the virtual color sample and as a reference standard for color measurement. The system integrates the light source, substrate, and photometric measurement capabilities into a unified device that can both generate and measure colors, reducing the need for separate equipment and simplifying the overall system architecture.
Solution Approach 2:
The patent introduces a substrate as an intermediary element that mediates between the light distribution light source and the measurement system. The substrate with controlled spectral reflectance or transmittance characteristics acts as a mediator that converts the light source's spectral output into visible colors that can be observed and measured, simplifying the relationship between the light source and the color measurement 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 method significantly reduces resource waste and time by allowing direct color adjustment and storage, doubling the efficiency of the supply chain process while accurately reproducing the appearance, texture, and feel of actual samples.
Implementation Method 1
emitting, by a light distribution light source, light consistent with a chromaticity value of the selected color onto the substrate for displaying the selected color
Implementation Method 2
measuring, by the photometric instrument, the color data of the sample
Data Source
AI summary
A color matching method and a color matching device are provided, the color matching method includes: S1, determining a target color; S2, judging whether color data of a sample is obtained, if yes, proceeding to step S3, and if not, proceeding to step S5; S3, measuring the color data of the sample and displaying a color on a substrate, and proceeding to step S4; S4, judging whether the color displayed on the substrate is consistent with the target color, and if not, proceeding to step S6, and if yes, proceeding to step S7; S5, selecting a color and emitting light consistent with a chromaticity value of the selected color onto the substrate and proceeding to step S6; S6, adjusting the color displayed on the substrate until an adjusted color displayed on the substrate is consistent with the target color, and proceeding to S7; and S7, storing data.