Goniophotometry is a critical measurement technique in photometric analysis, enabling precise characterization of luminous intensity distribution, total luminous flux, and spatial color uniformity of light sources. The LISUN LSG-6000 is a fully automated goniophotometer designed for high-accuracy testing in compliance with international standards such as IEC 60598, IES LM-79, CIE 121, and EN 13032.
This instrument is widely adopted across industries requiring rigorous photometric validation, including LED/OLED manufacturing, display testing, urban lighting design, and medical lighting development. Its automated operation, high angular resolution, and spectral correction capabilities make it a preferred solution for laboratories and production facilities demanding traceable and repeatable measurements.
The LSG-6000 integrates a high-precision mechanical rotation system with a spectroradiometer or photometer for comprehensive light analysis. Key specifications include:
The LSG-6000 operates on the far-field goniophotometric principle, where the test luminaire is rotated along two axes (C and γ) while a detector measures luminous intensity at fixed angular increments. Key methodologies include:
In LED/OLED production, the LSG-6000 validates compliance with IES LM-80 and ANSI C78.377, ensuring consistent luminous flux and angular color uniformity. For micro-LED displays, the system quantifies viewing-angle performance per IEC 62931.
Municipal lighting projects require adherence to EN 13201 and CIE 140 for road luminance uniformity. The LSG-6000’s high dynamic range (0.1–200,000 cd) ensures accurate modeling of streetlights and façade illumination.
Medical lighting systems must meet ISO 15004-2 for ophthalmic instruments and DIN 5035 for surgical luminaires. The LSG-6000’s spectroradiometric option verifies flicker-free operation and spectral irradiance.
Entertainment lighting relies on ESTA E1.48 for beam consistency. The LSG-6000’s rapid scanning mode (5°–10°/sec) enables real-time profiling of moving head fixtures.
In solar simulation, the system validates collimation angle per IEC 60904-9, while optical component manufacturers use it to certify lens diffusion profiles.
A European automotive supplier utilized the LSG-6000 to certify LED matrix headlights per ECE R112 and SAE J3069. The system’s 0.1° resolution detected micro-variations in beam cutoff, ensuring compliance with glare limits.
Q1: What is the minimum sample size required for LSG-6000 testing?
The system accommodates luminaires from 5 mm to 2 m in diameter, with adjustable mounting fixtures for irregular shapes.
Q2: Does the LSG-6000 support near-field goniometry?
No, it is optimized for far-field measurements (≥5x the luminaire’s largest dimension).
Q3: How does the LSG-6000 handle high-power LEDs (>500W)?
Active thermal management and calibrated neutral density filters prevent detector saturation.
Q4: Can the system measure flicker in PWM-driven LEDs?
Yes, with an optional high-speed spectrometer (up to 50 kHz sampling rate).
Q5: What is the typical calibration interval?
Annual recalibration is recommended, traceable to NIST or PTB standards.
This article has outlined the LSG-6000’s technical capabilities, industry applications, and compliance framework, demonstrating its role as a benchmark in photometric testing.
