Light distribution measurement service

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last updated：Jun 07, 2021

スリー・エス

Official site

We accept lighting fixture distribution measurement tests!

We offer a "light distribution measurement service" to measure the spread of light and color appearance of lighting fixtures at a reasonable price. As an OEM manufacturer, we would be happy to assist companies that wish to conduct light distribution simulations for their products under development. Our light distribution measurement system utilizes a "3-axis goniophotometer" capable of measuring from 40W bulbs to 1200 millimeter-sized linear lighting fixtures. It employs a high-sensitivity electronic cooled back-illuminated spectrometer as the detector, allowing us to measure not only light distribution but also spectral irradiance spectra, total luminous flux, and colorimetric measurements. We provide the necessary inspections and data at an affordable price. For inquiries, please contact Ipros, or reach out to Shimada Co., Ltd. or Three S Co., Ltd. https://three-sco.jp/measurement/

Related Link - https://three-sco.jp/measurement/

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basic information

■About the Light Distribution Measurement Device Multi-channel spectrometer (QEpro) and light distribution measurement device using a 3-axis goniometer stage ■System Specifications Measurement distances: 1.5m, 3.0m, 4.5m, 6.0m Rotational mechanism: Sample section (φ) pitch angle (rotation range ±180°) 0°, 1°, 5°, 10°, 15°, 30°, 45°, 90° Receiving section (θ) pitch angle (rotation range ±110°) 1°, 2°, 5°, 10° Measurement wavelength range: 350–950nm ■Measurement Contents Illuminance [lx] Luminous intensity [cd] Correlated color temperature [K] Radiant illuminance [uW/cm^2] Chromaticity xy, uvΔuv Color rendering index Ra, R1, … R15 Peak wavelength [nm] Dominant wavelength [nm] Central wavelength [nm] Centroid wavelength [nm] ■Output Data of Measurement Results Luminous intensity table Light distribution curve Sine equal luminous intensity curve Illuminance on the horizontal plane Direct horizontal plane illuminance distribution Indoor lighting rate Outdoor lighting rate 1/2 illuminance angle 1/2 beam angle IES data (ies)