What is the definition of type C goniophotometer?

LSG-6000 Moving Detector Goniophotometer (Mirror Type C)  manufactured by LISUN completely meets LM-79-24、LM-79-19, COMMISSION DELEGATED REGULATION (EU) 2019/2015, CIE-121, CIE S025, SASO 2902, IS16106 and EN13032-1 clause 6.1.1.3 type 4 requirements. LSG-6000 is the latest upgraded product of LSG-5000 and LSG-3000 in compliance with the requirements of the LM-79-19 standard Clause 7.3.1. It’s an automatic light distribution intensity 3D curve testing system for measuring light. The darkroom can be designed according to the customer’s existing room size.

Standard:
LM-79-19 “Optical and Electrical Measurements of Solid State Lighting Products”
EN13032-1 “Light and lighting – Measurement and presentation of photometric data of lamps and luminaires – Part 1: Measurement and file format; German version EN 13032-1:2004+A1:2012”
CIE-121 ” The Photometry and Goniophotometry of Luminaires”
CIE S025 “Test Method for LED Lamps, LED Luminaires and LED Modules”

What is the use of goniophotometer?

The manufacturer of LSG-6000 gonio photometer is LISUN. It can measure all types of lighting sources, LED, Plant Lighting or HID luminaires such as indoor and outdoor luminaires, roadway luminaires, street lamps, flood lights and other kinds of luminaires.

Measurement:
Luminous Intensity Data, Photometric Data, Luminous Intensity Distribution, Zonal Luminous Flux, Luminaries Efficiency, Luminance Distribution(Option), 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, etc.

Feature:
• The near field detector moves together with the big mirror in a line. The big mirror and the far field detector move synchronously.
• The burning position of the lumainares will be kept without moving at all, and the detector will always sense the light directly from the luminares.
• The rotary motor is from Japan MITSUBISHI MOTORS and the angle decode system is from Germany. They help the goniophotometer rotating smoothly with high accuracy. It is very stable when start and stop.
• The working principles are according to IESNA and CIE. The LSG-6000 completely meet the LM-79, LM-75, GB, EN and CIE121-1996 standards.
• Special collimation device with cross laser line help you installing the position of the luminaires under test conveniently and accurately.

Specification:
• The mirror and detector rotates around the luminaire under test with an angle of (γ) vertical axis ±180° (or 0-360°) and the luminaire rotates around itself with an angle of (C) horizontal axis ±180° (or 0-360° ).
• The accuracy of angle: 0.05°, Resolution of angle: 0.001°
• Photometer Detector Accuracy: Constant temperature photo detector DIN5032-6/CIE pub1. No. 69 Class L with f1′<1.5%