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14 Jun, 2022 29 Views Author: LISUN

Color and spectrum measurement difference between goniospectraodiometer and integrating sphere system

Integrating sphere measurement system is the most common light color measurement equipment in the lamp industry. Its measurement results can meet the R & D and testing needs of most products. It is a more economical measurement means.

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Principle of Integrating sphere test system:
1. use the standard lamp for calibration, obtain the luminous flux data of the tested lamp through the coefficient (relative measurement), measure the illumination of a certain point on the integrating sphere, calculate the radiation flux at a certain wavelength, and finally calculate the total luminous flux of the light source;

2. spectral method: optical fiber measurement, obtaining chromaticity coordinate values (x/y, u/v), and calculating other color parameters

3. photometry: probe V (λ) Correction measurement.

The Integrating sphere test system is suitable for:
Integrated LED lamps and relatively small LED lighting products

Integrating sphere test system features:
Fast, no darkroom required

Chromaticity parameters:
Chromaticity coordinates, relevant color temperature, color ratio, peak wavelength, half bandwidth, main peak wavelength, color purity, color rendering index, CQS, tm-30 (RF, RG), spectrogram, etc.

The Goniospectraodiometer is an instrument that makes the light source or detector rotate to measure the light intensity in any direction. It is usually used to measure the light distribution characteristics, but it can also calculate the luminous flux of all solid angles from the measured light intensity and add them to obtain the luminous flux of the measured light source Unlike the integrating sphere, the distribution photometer does not need to consider the measurement error caused by self absorption. In addition, the heating of the light source will not affect the measuring instrument, so it is conducive to the measurement of large and high-power lamps.

Operating principle of Goniospectraodiometer :
Generally, the light intensity distribution of the light source is measured and the luminous flux of the light source is calculated Through luminous flux / luminous intensity / illuminance / brightness and the conversion between these parameters, illuminance is the basic data, and other parameters are calculated by it.

The Goniospectraodiometer is suitable for:
The optical measurement of large lamps such as high pressure mercury lamp and sodium lamp has higher measurement accuracy.

Goniospectraodiometer features:
The measurement time is long, so it must be installed in a constant temperature dark room.

Chromaticity parameters:
Chromaticity coordinates, related color temperature, color rendering index, wavelength accuracy.

Therefore LISUN launched LPCE-2 Integrating Sphere Spectroradiometer LED Testing System is for single LEDs and LED lighting products light measurement. LED’s quality should be tested by checking its photometric, colorimetric and electrical parameters. According to CIE 177CIE84,  CIE-13.3IES LM-79-19Optical-Engineering-49-3-033602COMMISSION DELEGATED REGULATION (EU) 2019/2015IESNA LM-63-2 and ANSI-C78.377, it recommends to using an array spectroradiometer with an integrating sphere to test SSL products. The LPCE-2 system is applied with LMS-9000C High Precision CCD Spectroradiometer or LMS-9500C Scientific Grade CCD Spectroradiometer, and A molding integrating sphere with holder base. This sphere is more round and the test result is more accruacy than the traditional integrating sphere.

LPCE-2(LMS-9000) High Precision Spectroradiometer Integrating Sphere System

LSG-1890BCCD/LSG-1800ACCD Goniospectroradiometer is high precision automatic goniophotometric instrument for luminous intensity distribution measurement with facility for rotating the light source. The LSG-1890BCCD/LSG-1800ACCD can do the spatial CCT test and the intensity distribution test. It is for industrial laboratory photometric data measurement of luminaires such as LED luminaires, LED Plant Lighting, HID luminaires, fluorescent lamps and so on. Full meet the EN13032-1 clause 6.1.1.3 goniophotometer type 1, COMMISSION DELEGATED REGULATION (EU) 2019/2015CIE-70CIE-121IES LM-79IES LM-75IES LM-80 and ect.

High Precision Rotation Luminaire Goniophotometer LSG 1890B YK64

High Precision Rotation Luminaire Goniophotometer LSG 1890B 

Measurement:
Luminous Intensity Data, Luminous Intensity Distribution, Zonal Luminous Flux, Luminaries Efficiency, Luminance Distribution, Coefficient Of Utilization, Luminance Limitation Curves Glare, Maximum Ratio of Distance to Height, Equal Illuminance Diagrams, Curves of Luminaires VS Lighting Area, Isocandela Diagrams, Efficient Luminescence Angle, EEI, UGR, CCT, CRI, Color Temperature Distribution, Spectrum, (x, y)/(u, v), PAR, PPF, PPFD 3D distribution test and etc.

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 GoniophotometerIntegrating SphereSpectroradiometerSurge GeneratorESD Simulator GunsEMI ReceiverEMC Test EquipmentElectrical Safety TesterEnvironmental ChamberTemperature ChamberClimate ChamberThermal ChamberSalt Spray TestDust Test ChamberWaterproof TestRoHS Test (EDXRF)Glow Wire Test and Needle Flame Test.

Please feel free to contact us if you need any support.
Tech Dep: [email protected], Cell/WhatsApp:+8615317907381
Sales Dep: [email protected], Cell/WhatsApp:+8618117273997

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