In the rapidly advancing field of LED lighting, the LED Tester has become an essential tool for ensuring that light sources meet rigorous international standards for performance and efficiency. LEDs, renowned for their high efficiency, energy savings, and environmental benefits, are widely utilized in applications ranging from indoor and outdoor lighting to display technologies, agricultural lighting, and specialized illumination systems. Accurate measurement of photometric, colorimetric, and electrical parameters is critical to ensuring LED quality, reliability, and market competitiveness.
The LSG-6000 Rotating Detector Vertical Goniophotometer (Full-Space Goniophotometer), developed by LISUN LED Test Equipment Co., Ltd. (hereinafter referred to as LISUN), is a cutting-edge LED Tester designed to measure light intensity distribution and luminous flux with unparalleled precision, fully compliant with LM-79-19 standards. This article explores the technical principles, advanced features, diverse applications, and transformative contributions of the LSG-6000 LED Tester to the global LED testing industry.
LM-79 Moving Detector Goniophotometer (Mirror Type C)
The LSG-6000 LED Tester is a C-type photometric measurement system engineered as a full-space goniophotometer, leveraging advanced rotating detector technology to measure the three-dimensional light intensity distribution of LED sources and calculate luminous flux through spatial integration. Its design adheres to stringent standards set by the International Commission on Illumination (CIE) and the Illuminating Engineering Society (IES), including LM-79-19, EN13032-1 Clause 6.1.1.3 (Type 4 Goniophotometer), and CIE S025, ensuring global applicability.
The LSG-6000 LED Tester employs a sophisticated moving detector and mirror system to rotate around the LED source in both horizontal and vertical planes, capturing light intensity data (measured in candelas, cd) at various angles. With an angular accuracy of 0.05° and a resolution of 0.001°, the LED Tester generates highly precise three-dimensional light intensity distribution curves. The testing distance is customizable, ranging from 5 to 30 meters, accommodating a broad spectrum of LED sources, from compact modules used in consumer electronics to large-scale streetlights and floodlights.
The LSG-6000 LED Tester can be seamlessly integrated with LISUN’s LPCE-2 high-precision CCD spectroradiometer, enabling comprehensive measurement of spatially correlated color temperature (CCT), color rendering index (CRI), spectral power distribution, and other colorimetric parameters. This integrated capability makes the LED Tester exceptionally suited for evaluating complex LED sources, such as multi-color LEDs or those with tailored spectral outputs for specialized applications.
To ensure measurement accuracy, the LSG-6000 LED Tester incorporates environmental monitoring modules that compensate for variables such as temperature fluctuations, humidity, and power instability. This feature is critical for maintaining consistent results in diverse testing conditions, from controlled laboratory environments to industrial production lines.
• Key Features of the LSG-6000 LED Tester
The LISUN LSG-6000 LED Tester is distinguished by its innovative design and advanced technical capabilities, positioning it as a leading solution in the LED testing industry.
• Unmatched Precision and Reliability
The LSG-6000 LED Tester integrates Japanese Mitsubishi servo motors and German high-precision angle decoders, ensuring smooth and accurate movement of the detector and mirror system. A cross-laser alignment device facilitates rapid and precise positioning of the LED source, minimizing installation errors. The photometric detector achieves Class L accuracy (per DIN5032-6/CIE pub1. No. 69), delivering reliable measurements even for low-luminance LED sources, which are increasingly common in energy-efficient lighting designs.
• Comprehensive Multi-Parameter Testing
As a versatile LED Tester, the LSG-6000 supports an extensive range of photometric parameters, including light intensity distribution, zonal luminous flux, luminaire efficiency, luminance distribution, unified glare rating (UGR), isolux curves, and effective beam angle. When paired with a spectroradiometer, it also measures colorimetric parameters such as CCT, CRI, spectral distribution, and agricultural lighting metrics like photosynthetically active radiation (PAR) and photosynthetic photon flux density (PPFD). This multi-parameter capability makes the LED Tester a one-stop solution for comprehensive LED evaluation.
• Broad Compatibility Across Light Sources
The LSG-6000 LED Tester supports a rotation range of ±180° (or 0–360°), with adjustable testing distances to accommodate various light sources, including LEDs, high-intensity discharge (HID) lamps, fluorescent lamps, grow lights, streetlights, and floodlights. Its software generates output files in formats such as IES, LDT, and CIE, which are compatible with lighting design software like DiaLux, enabling seamless integration into practical lighting design workflows.
• Intelligent and User-Friendly Operation
Equipped with English-language testing software compatible with Windows 7/8/10, the LSG-6000 LED Tester communicates via RS-485/USB interfaces. Users can configure testing distances, illuminance values, and other parameters through an intuitive interface, generating 3D light intensity distribution graphs and detailed reports with ease. The software’s cloud-based data management capabilities further enhance efficiency by enabling remote access and analysis, making it ideal for large-scale testing operations.
• Robust and Durable Design
The LSG-6000 LED Tester is built with high-quality components to ensure long-term reliability and minimal maintenance costs. Its robust construction and automated testing processes make it suitable for high-intensity, continuous use in industrial settings.
The multifaceted capabilities of the LSG-6000 LED Tester make it a vital tool across diverse industries, enabling compliance with international standards and meeting the evolving demands of the global lighting market.
• LED Lighting Design and Optimization
In indoor and outdoor lighting design, the LSG-6000 LED Tester provides precise light intensity distribution and luminous flux data, enabling designers to optimize LED luminaire layouts. For example, LED streetlights require uniform light distribution to minimize glare and ensure safety. The LED Tester’s isolux curves and UGR data guide designers in adjusting luminaire angles and power settings to achieve optimal illumination performance.
• LED Quality Control in Manufacturing
LED manufacturers rely on the LSG-6000 LED Tester for quality assurance in mass production, ensuring compliance with standards like LM-79-19. Its high-precision measurements detect issues such as lumen depreciation, color shifts, or inconsistencies in light output, enhancing product reliability and boosting market competitiveness. The LED Tester’s automated testing capabilities streamline quality control processes, reducing production costs and time-to-market.
• Agricultural Lighting Optimization
In agricultural lighting, the LSG-6000 LED Tester, when integrated with a spectroradiometer, measures PAR and PPFD to optimize LED grow lights’ spectral and luminous flux distribution. This enhances photosynthesis efficiency, enabling tailored lighting solutions for specific crops, such as leafy greens, fruiting plants, or medicinal herbs. The LED Tester’s data-driven insights help farmers achieve higher yields and more sustainable agricultural practices.
• Specialized Lighting Testing
The LSG-6000 LED Tester is ideal for testing traffic signal lights, LED automotive headlights, and other specialized sources, ensuring visibility and safety in challenging environments. Its high angular resolution excels in evaluating the performance of directional LED sources, making it a preferred choice for applications requiring precise light distribution control.
• Research and Development
In R&D settings, the LSG-6000 LED Tester supports the development of next-generation LED technologies by providing detailed photometric and colorimetric data. Researchers can use the LED Tester to evaluate new materials, optical designs, or spectral configurations, accelerating innovation in fields like smart lighting and human-centric lighting.
The LISUN LSG-6000 LED Tester stands out in the LED testing industry due to its unique combination of advanced features and practical benefits:
• Global Standards Compliance: Fully adheres to LM-79-19, EN13032-1, and CIE S025, ensuring test results are recognized worldwide.
• Modular and Integrated Design: Supports seamless integration with integrating spheres, spectroradiometers, and other testing equipment for comprehensive photometric, colorimetric, and electrical analysis.
• Efficiency and Durability: High-quality motors and detectors ensure stable operation and low maintenance costs, making the LED Tester suitable for long-term, high-intensity use.
• Customized Solutions: LISUN offers tailored testing distances and fixtures to accommodate diverse LED luminaire sizes and testing scenarios, providing flexibility for various applications.
• Scalability for Industrial Use: The LED Tester’s automated workflows and cloud-based data management support large-scale testing operations, enhancing productivity in manufacturing environments.
LED testing presents several challenges, including measuring low-luminance LEDs, handling complex spectra, and improving testing efficiency. The LSG-6000 LED Tester addresses these challenges through innovative solutions:
• Low-Luminance Testing: The LED Tester employs near-field and far-field detectors to mitigate data inaccuracies in low-luminance LED testing, ensuring reliable results for energy-efficient light sources.
• Complex Spectra Management: Integration with high-precision CCD spectroradiometers (wavelength accuracy ±0.5 nm, chromaticity accuracy ±0.0015) minimizes errors in measuring multi-color LEDs or sources with complex spectral profiles.
• Automation for Efficiency: Fully automated testing supports long-duration tests (e.g., LM-80, up to 6,000 hours) without human intervention, significantly improving productivity and reducing labor costs.
As LED technology advances toward higher luminous efficacy, broader color gamuts, and smarter applications, LED Testers must evolve to meet these demands with greater precision and intelligence. LISUN is committed to enhancing the LSG-6000 LED Tester by integrating artificial intelligence algorithms for real-time data analysis and adaptive calibration, improving both accuracy and efficiency. Additionally, by actively participating in international standards development, LISUN aims to unify global LED testing protocols, ensuring consistency and reliability across the industry. Future iterations of the LED Tester may also incorporate advanced sensors for real-time environmental monitoring and predictive maintenance, further streamlining testing processes.
The LISUN LSG-6000 LED Tester, with its high precision, multifunctionality, and intelligent design, sets a new standard in LED photometric testing. From optimizing lighting designs to ensuring product quality, advancing agricultural lighting, and supporting specialized illumination applications, this LED Tester delivers exceptional performance and versatility. Through continuous innovation, customized solutions, and a commitment to global standards, LISUN is driving the evolution of LED Tester technology, contributing to a brighter, more sustainable future for the global lighting industry. As LEDs continue to transform how we illuminate our world, the LSG-6000 LED Tester stands at the forefront, empowering manufacturers, designers, and researchers to achieve excellence in lighting performance.
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