Technical Characteristics and Color Measurement Application Analysis of LISUN Portable Color Spectrophotometer

1. Introduction

In the R&D and quality control of plastics, printing and packaging, coatings and building materials, textiles and garments, automotive interiors and other industries, color consistency and accuracy are important indicators of product quality, which directly affect product competitiveness and brand reputation. Traditional visual color judgment is affected by subjective perception, light source environment, observation angle and other factors, resulting in large errors and non-quantifiable results, which can no longer meet the refined and standardized color control requirements of modern industry.

As a professional instrument for quantitative color measurement, the spectrophotometer captures the spectral reflectance of objects accurately, converts color into quantifiable optical data, and realizes objective and accurate color judgment. The portable color spectrophotometer independently developed by LISUN breaks through the space limitation of traditional desktop colorimeters, combines portability with high precision, and is designed in strict accordance with international color measurement standards, making it an ideal instrument for on-site color measurement and online quality control in various industries. As a high-end model of LISUN, the HSCD-860 portable color spectrophotometer has achieved comprehensive upgrades in measurement accuracy, stability and functional adaptability. This paper comprehensively analyzes the instrument from technical design, performance parameters and industrial applications, providing a reference for color measurement instrument selection in various industries.

2. Core Technical Design and Development Standards of the Portable Color Spectrophotometer

2.1 Core Technical Architecture

LISUN portable color spectrophotometer adopts the core design of grating spectroscopy technology and dual 16-group silicon photodiode array sensors, combined with nano-integrated optical devices, to achieve nanometer-level spectroscopic capability. Grating spectroscopy technology can accurately decompose composite light into monochromatic light, and the array sensor quickly captures and converts optical signals of different wavelengths to accurately obtain the spectral reflectance data of objects in the 400~700nm visible light band, providing a core basis for quantitative color analysis.

At the same time, high-end models such as HSCD-860 adopt a dual optical path design, which monitors light source energy fluctuations in real time while measuring sample light signals, effectively offsetting the influence of light source drift and ambient light interference on measurement results and greatly improving measurement stability. Equipped with a zirconia calibration whiteboard with a Mohs hardness of 9, it features color stability under temperature and humidity changes, scratch resistance and automatic calibration. Compared with traditional ceramic/plastic whiteboards, its long-term stability and durability are significantly improved, ensuring measurement accuracy during long-term use.

2.2 Strict Compliance with International Development Standards

The R&D, production and calibration of all LISUN portable color spectrophotometer models strictly follow international color measurement standards, fully complying with CIE No.15 (International Commission on Illumination color measurement standard) and ISO 7724-1 (general specifications for spectrophotometers and colorimeters), as well as mainstream domestic and foreign standards such as ASTM E1164, DIN5033 Teil7 and GB/T 3978. The measurement viewing conditions, field angles (2°/10°), light source conditions and other parameters are set in accordance with international standards, ensuring the universality and comparability of measurement data, enabling color data exchange between different regions and enterprises, and laying a foundation for global production and quality control of products.

3. Key Performance Parameters and Functional Features of LISUN HSCD-860 Portable Color Spectrophotometer

LISUN portable color spectrophotometer includes three models: HSCD-780, HSCD-800 and HSCD-860. As a flagship high-precision model, HSCD-860 has achieved all-round optimization in measurement accuracy, measurement aperture and functional adaptability, with core performance parameters reaching industry-leading levels, meeting high-precision and multi-scenario color measurement requirements in various industries.

3.1 Ultra-High Measurement Accuracy and Stability

The HSCD-860 portable color spectrophotometer features measurement repeatability ΔE*ab ≤ 0.02, inter-instrument difference ΔE*ab ≤ 0.2, and display accuracy of 0.01, realizing ultra-precise quantitative color measurement. Equipped with a full-band balanced LED + UV illumination light source with a service life of 10 years / 1,000,000 measurements, it provides stable light output. With a 1-second fast measurement mode, it improves detection efficiency while ensuring accuracy. A single charge supports up to 8,000 consecutive measurements, meeting the needs of large-batch and continuous testing in industrial sites.

3.2 Multi-Aperture Adaptation and Full-Dimensional Measurement Indicators

The instrument is equipped with 6 measurement apertures, including stable apertures of Φ11mm, Φ6mm, Φ3mm and flexible apertures of ▽11mm, ▽6mm, ▽3mm, which can adapt to samples of different sizes and shapes. Whether it is large-format coating plates, automotive interior parts, or small-aperture plastic parts and hardware accessories, accurate measurement can be achieved.

In terms of measurement indicators, HSCD-860 can accurately detect more than ten color space parameters such as spectral reflectance, CIE-Lab, CIE-LCh, and supports multiple color difference formulas such as ΔE*ab and ΔE*00. It can realize full-dimensional color index detection such as whiteness, yellowness, blackness, color density, hiding power and tinting strength, meeting the multiple needs of color matching reference, product quality judgment and quality grading.

3.3 Intelligent Operation and Multi-Platform Compatibility

HSCD-860 is equipped with a 3.5-inch full-color touch screen, supporting both Chinese and English operation with a simple and intuitive interface, enabling quick operation without professional training. It is equipped with dual USB and Bluetooth interfaces, enabling wireless/wired connection between the instrument and computers, mobile phones, and supports multi-platform software adaptation for Android, iOS, Windows and WeChat mini-programs. The instrument can store 10,000 test data locally, and the supporting APP realizes massive data storage, analysis and export, helping enterprises build color databases and achieve full-life-cycle color control of products.

Table 1 shows the key performance parameter comparison of the three core models of LISUN portable color spectrophotometer, directly reflecting the high-end performance and scenario adaptability of HSCD-860.

Table 1 Key Performance Parameter Comparison of LISUN Portable Color Spectrophotometer Core Models

Performance Index	HSCD-780	HSCD-800	HSCD-860
Core Positioning	Small-aperture dedicated measurement	High-precision general measurement	Flagship ultra-high-precision measurement
Measuring Geometry	D/8, SCI	D/8, SCI+SCE	D/8, SCI+SCE
Measurement Repeatability ΔE*ab	≤0.05	≤0.04	≤0.02
Inter-Instrument Difference ΔE*ab	N/A	≤0.4	≤0.2
Measuring Aperture	1 (Φ1mm)	2 (Φ11mm, ▽11mm)	6 (Φ11/6/3mm, ▽11/6/3mm)
Illumination Source	Full-band balanced LED	LED + UV	LED + UV
Observation Mode	Visual	Camera	Camera
Integrating Sphere Diameter	20mm	40mm	40mm
Interface	USB, Bluetooth	USB	USB, Bluetooth
Screen	2.4-inch full-color touch screen	3.5-inch full-color touch screen	3.5-inch full-color touch screen
Metrology Standard	Metrologically qualified	Class I metrologically qualified	Class I metrologically qualified

4. Industrial Application and Practical Value of LISUN HSCD-860 Portable Color Spectrophotometer

4.1 Core Application Scenarios in Various Industries

With its portability, high precision and multi-functionality, the LISUN HSCD-860 portable color spectrophotometer is widely used in plastics, printing and packaging, coatings and building materials, textiles and garments, food, hardware and home appliances, automotive interiors and other industries, becoming a core color measurement instrument in R&D, incoming inspection, process control and finished product delivery. Its practical value is reflected in the whole process of color management.

1. Plastics Industry: Measures the color of plastic raw materials and injection-molded parts, quickly judges color differences between incoming materials and standard color plates, controls color deviation in the injection molding process, and ensures color consistency between batches of plastic products, suitable for mobile phone casings, home appliance plastic accessories, plastic pipes and other products.

2. Printing and Packaging Industry: Tests color density and color difference of paper, ink and printed products, accurately matches printing color values, avoids scrap caused by color deviation, suitable for online quality control of packaging boxes, labels, book printing and other scenarios.

3. Coatings and Building Materials Industry: Conducts on-site color measurement of coatings, paints, plates and ceramics, quickly judges whether coating color matching meets standards at construction sites, controls color uniformity of walls, furniture and building materials, solving color deviation problems between laboratory testing and on-site construction.

4. Automotive Interior Industry: Measures color of automotive seats, dashboards, door panels and other interior parts, adapts to interior parts of different sizes, achieves precise color matching of the whole vehicle interior, ensures color consistency of various automotive interior components and improves overall vehicle quality.

5. Textile and Garment Industry: Tests color and color fastness of fabrics, yarns and garments, judges color effects of printing and dyeing processes, controls color deviation of fabrics in different batches, providing data support for garment color matching and fabric procurement.

In addition, the instrument can also be used in food appearance color grading, hardware and home appliance surface coating color measurement and other scenarios, adapting to color measurement needs in various industries.

4.2 Core Value in Industrial Practice

1. Realize Objective and Quantitative Color Judgment: Replaces traditional manual visual judgment, converts color into quantifiable and traceable optical data, eliminates interference from subjective and environmental factors, makes color judgment more objective and accurate, and improves the standardization level of product quality control.

2. Improve Color Control Efficiency and Reduce Costs: Portable design enables on-site rapid detection; 1-second measurement speed and 8,000 consecutive measurements per charge greatly improve the efficiency of incoming inspection and process control. Accurate color difference analysis can detect color deviation in advance, avoiding unqualified products entering the next process and reducing scrap and rework costs.

3. Support Product R&D and Color Matching Optimization: Accurately captures color data under different raw materials and processes, providing a scientific basis for color matching in product R&D, helping R&D personnel quickly optimize color schemes, shorten R&D cycles, and improve product color design and adaptability.

4. Realize Enterprise Color Data Management: Multi-platform data storage and analysis functions help enterprises build exclusive color databases, realize full-life-cycle color data traceability from R&D, production to after-sales, providing data support for quality improvement and product upgrading.

At the same time, LISUN provides a wealth of optional accessories for the portable color spectrophotometer, such as powder measurement cups, ceramic test plates, ISO17025 laboratory metrology reports, etc., which can meet the testing needs of samples in different forms such as powder, liquid and solid, further expanding the application scenarios of the instrument.

5. Conclusion and Prospect

Through a comprehensive analysis of the core technical design, key performance parameters and industrial application characteristics of the LISUN HSCD-860 portable color spectrophotometer, this paper draws the following conclusion: as a high-end color measurement instrument independently developed by LISUN, this portable color spectrophotometer relies on core technologies such as grating spectroscopy, dual optical path design and nano-integrated optical devices, and is developed and manufactured in strict compliance with international standards such as CIE No.15 and ISO 7724-1. It achieves ultra-high precision with measurement repeatability ΔE*ab ≤ 0.02, combining portability, intelligence and multi-scenario adaptability, fully meeting the high-precision, standardized and efficient color measurement requirements of modern industry.

The instrument can be widely used for color measurement, color difference analysis and consistency control in plastics, printing and packaging, coatings and building materials, automotive interiors and other industries, with multiple functions of color matching reference, quality judgment and quality grading. It helps enterprises eliminate errors in manual visual judgment, improve the standardization level of color control, reduce production costs, and provide important technical support for improving product quality and market competitiveness.

With the development of industrial manufacturing toward refinement, intelligence and digitalization, the requirements for color measurement accuracy, efficiency and data management in various industries will continue to increase. In the future, portable color spectrophotometer will develop toward higher precision, smarter IoT connectivity, and more comprehensive multi-form sample measurement. Combined with 5G, big data and artificial intelligence technologies, it will realize cloud sharing, remote analysis and intelligent early warning of color measurement data, building an intelligent color control system for the entire industrial chain.

As a developer of color measurement instruments, LISUN will continue to focus on grating spectroscopy technology and optical sensor design, continuously optimize the performance parameters of portable color spectrophotometer, expand industrial application scenarios, and adapt to color measurement needs in more emerging fields. With continuous technological progress, portable color spectrophotometer will become one of the core instruments for digital quality control in various industries, providing a more solid technical guarantee for the high-quality development of industrial manufacturing.

Tags：HSCD-860