Goniophotometer for Automotive and Signal Lamps

LSG-1950 is a CIE A-α goiophotometer. The photometer head keeps static and it faces to the sample under test while the sample is rotating around both horizontal axis and vertical axis. So the luminous intensity and illuminance of the lamp or luminaires can be tested. It fully meets the Final Report PC13050202 Oregon, ECE-R65, FMVSS108, GB13954 and GB 25991 Standard.

Standard:
ECE-R65 “Special Warning Lights”
FMVSS108 “Lamps, re-flective devices, and associated equipment. “
IEC60662(GB13954 ) “High-pressure sodium vapour lamps”
GB 25991 “Automotive headlamps with LED light sources and/or LED modules”

Specification:
• A axis rotating angle: -180~180° and α axis rotating angle: -180~180°
• The accuracy of angle: 0.01°.  The resolution of angle: 0.001°
• Luminosity testing range: illuminance 0.001lx~99,999lx; Light intensity 1.0cd～10^7cd (detector)
• Accuracy of photometry: CIE Class A or Class L (option)
• Testing accuracy: 2% (Under Standard lamp); Stray light: less than 0.1%
• English version software can run on Win7, Win8, Win10, Win11.

LSG-1950 Test Size And Weight

The LSG-1950 goniophotometer can work with LISUN PM400F Flashlight Photometer to fully meet following standards:
• MH/T 6012-1999 – Aviation Obstruction Light
• HB6490-1991 – General Specifications for Aircraft Navigation Light and Anti-collision Light
• JTT 761—2022 – General Technical Conditions for Aids to Navigation Light
• ECE R65 Uniform Provisions Concerning The Approval of Special Warning Lamps for Motor Vehicles
• SAE J595 Directional Flashing Optical Warning Devices for Authorized Emergency, Maintenance, and Service Vehicles
• SAE J845 Optical Warning Devices for Authorized Emergency, Maintenance, and Service Vehicles
• JJF1330-2011 – Calibration Specification for Transient Effective Luminous Intensity Meter.

PM400F Flashlight source luxmeter

How to test Automotive LED Headlights?
According to IEC, EN, ECE, SAE, FMVSS108 federal regulations and relevant test standards, automotive LED lights is required to test optical characteristics, including the spatial distribution and total flux of luminous intensity (cd), spectral characteristics, chromaticity coordinates, dominant wavelength, luminance (cd / m2), color temperature etc parameters. 

To obtain these data, we mainly use goniophotometer to test. According to CIE and FMVSS108 standards, LISUN recommend LSG-1950/LSG-1950S CIE A-α Goniophotometer. It mainly for measuring transportation industry lighting, such as traffic lights, buses, trains, ships and aerospace equipment lamps. 

What are optical test parameters and standards of Automobile Headlights?
With the rapid development of the automobile industry and the improvement of driving speed, the automobile headlights are very important to ensure driving safety, the standards of automobile headlights occupies a very important position in automobile standards. At present, the standards applicable to automotive headlight products include ECE R112, SAE J1383, FMVSS108, GB 4599-2007, GB21259-2007, GB25991-2010, etc. These standards are applicable to automobile headlights with different light sources, but they also made uniform regulations for the entire lamp technical requirements, such as general requirements, color, luminous intensity distribution and test methods, and stability of luminous intensity distribution, etc. 

LISUN LSG-1950 Goniophotometer for Automotive and Signal Lamps – After-sales Frequently Asked Questions (FAQ)
LISUN LSG-1950 Goniophotometer for Automotive and Signal Lamps were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN will be continue to update this pages and more FAQ can be found in this topic link.

Steve Gibbons

2019-12-26

We have the LSG-1800BCCD gonio photometer. LISUN is professional and the photometer is nice. LISUN engineer came and installed for us. Now everything is functional. We are glad to cooperate with LISUN.

Goniophotometer for Automotive and Signal Lamps - Operation Video