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02 Mar, 2020 1568 Views Author: LISUN

LPCE-3 CCD Spectroradiometer Integrating Sphere Compact System is Designed According to IES LM-79-08 9.1 Integrating Sphere with a Spctroradiometer(Sphere-spectroradiometer System)

The full name of IES LM-79-08 is Electrical and Photometric Measurements of Solid-State Lighting Products. It is edited by the Illuminating Engineering Society in 2008. This approved method is a guide developed for the measurement of solid state lighting products. We will introduce the clause 9.1 Integrating Sphere with a Spectroradiometer(Sphere-spectroradiometer System) in this article.

The following is the original content of IES LM-79-08 Clause 9.1

9.1 Integrating Sphere with a Spctroradiometer(Sphere-spectroradiometer System)
This type of instrument measures total spectral radiant flux(unit:W/nm), from which total luminous flux and color quantities are calculated. By using an array spectroradiometer, the measurement speed can be of the same magnitude as for a photometer head.
9.1.1 Integrating sphere The size of the integrating sphere should be large enough to ensure that the measurement errors due to effects of baffle and self-absorption(see section 9.1.5) by the test SSL product are not significant. See section 9.1.2 for the guidance on the size of the sphere required relative to the size of the SSL products to be measured. In general. Sphere size of 1 m or larger is typically used for compact lamps(size of typical incandescent and compact fluorescent lamps), and 1.5 m or larger for larger lamps (e.g., size of 4-foot linear fluorescent lamps and HID lamps). The sphere should also be large enough to avoid excessive temperature increase due to heat from the light source being
measured. 2 m or larger spheres are typically used for measurement of light sources of 500W or larger.
9.1.4 Spectroradiometer Either mechanical scanning type or array type spectroradiometer may be used. The array type spectroradiometers may be used. The array spectroradiometer has the advantage of shorter measurement time sue to the multiplex nature of arrays. The specctroradiometer shall have a minimum spectral range from 380nm to 780nm. The defined visible spectral region is 360nm to 830nm²。

LISUN designed the LPCE-3 CCD Spectroradiometer Integrating Sphere compact system according to the LM-79 Clause 9.1 standard. It is suitable for photometric, colorimetric and electrical measurement. such as CCT, Color Ratio, Peak Wavelength, CRI, TM30, CQS, EEI and so on. It can measure LEDs, LED luminaires, Energy-saving lamps, Fluorescent lamps(high voltage sodium lamps and high voltage mercury lamps) and CCFL. We will update the software and testing parameters according to the updating of the LM-79 standard.

The following is the picture LPCE-3 CCD Spectroradiometer Integrating Sphere compact system

LPCE-3_ CCD Spectroradiometer Integrating Sphere Compact System

The following is the video of LPCE-3 CCD Spectroradiometer Integrating Sphere compact system


Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Surge Generator, EMC Test SystemsESD Simulator, EMI Test Receiver, Electrical Safety Tester, Integrating Sphere, Temperature Chamber, Salt Spray Test, Environmental Test ChamberLED Test Instruments, CFL Test Instruments, Spectroradiometer, Waterproof Test Equipment, Plug and Switch Testing, AC and DC Power Supply.

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