Spatial intensity distribution test

Item：GPM Serial Goniophotometer test system

Testing environment：Standard optics lab

The system including：GPM Goniophotometer（Light distribution curve）、Dual path intelligent photometer,WL serial CC&CV DC Power source、、Standard intensity lamp（Traced to NIM ）、Customized fixture.

Test methods：

C-γ、A-αand B-β

Applied lamp type:

Suitable for all kind of LED lamps like navigation lamp, auto lamp, street lamp, spot lamp, flood lamp, LED bulb, LED Tube etc.

Tested parameters:

Luminaire Efficacy Rating (LER), Luminous Intensity Distribution Curve Max. Intensity: Pos of Max. Intensity, Luminous Intensity Distribution Curve(cd/klm,Coefficients Of Utilization - Zonal Cavity Method,Curves of Luminaires vs Lighting Area,Isocandela (rectangle),Isocandela (sphere),IsoLux Plot,Lum Limit Curve,Illuminance at a Distance,Vertical IsoLux Plot,The Average Illuminance Effective Figure,Zonal Lumen,Candlepower Table.

Relative standards:

＞CIE Pub. NO.70, “The Measurment of Absolute Luminous Intensity Distributions”

＞ CIE DIV.Ⅱ-TC10, “Photometry of Luminaires”

＞ CIE Pub.NO.76, “Photometry-the CIE Sytstem of Physical Photometry”

＞ CIE 121-1996 “The Photometry of Goniophotometer of Luminaries”

＞ IESNA LM-75 “Goniophotometer Types and Photometric Coordinates”

＞ IESNA LM-79 “Electrical and Photometric Measurements of Solid-state Lighting Products”

＞IESNA-1971(73-96),“IES Practical Guide to Photometry”

＞ IESNA 61341 “Method of Measurement of Center Beam Intensity and Beam Angle(s) of Reflector Lamp”

＞ GB/T 9467-2008, “Photometry of indoor type luminaires”

＞ GB/T 9468-1988, “Photometry of luminaires for street lighting”

＞ GB/T 7002-2008,“Photometry for floodlight”

＞ LB/T 001-2008 “Method for measuring integral LED street lamp”

＞ GB/T 24824-2009 “Methods of measurement for LED modules for general lighting“

File output format:

◇ *.CIE  CIE

◇ *.IES  IESNA  (North America)

◇ *.TM14 TM14   (British)

◇ *.EUT  EULUMDAT  (Germany)

◇ *.CSV EXCEL

Please consult Ken for details