LSG-1900 goniophotometer is an automatic light distribution testing system test distance from 5m to 30m is adjustable and can measure all type of lighting sources and luminaries, including all kinds of luminaries, such as indoor and outdoor luminaries, roadway luminaries, and flood lights with high accuracy. It can achieve the testing program of CIE C-γ、 CIE B- β and CIE A-α. The tested results can be used as international lighting Design software. It meets the requirements of CIE and IESNA standards

• Measure 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 luminaries vs lighting area, lso candela diagrams, efficient luminescence angle etc
• The mirror rotates around the tested luminaries with an angle of (γ)±180°(0～360°), and the tested luminaries rotates around itself with an angle of (C)±180°(0～360°).
• Using technical and high level redirector which is made up by special  metal fiber, no winding, intelligent  startup and stop ,keep stable rotating continuous testing  and low noise.
• The position and working state remain the same as it is under working.
• Special collimation device with laser cross line, convenient and accurately fix the position of the tested luminaries.
• The accuracy of angle :0.1°, Resolution of angle: 0.01°.
• Accuracy of photometry :   CIE class A (standard class).
• The tested data meets the international and national standard requirements. IESNA file format output can be transferred by other illumination and luminaries design software
• RS-232C standard interface and windows operating  boundary surface with both Chinese and English，convenient to connect with all kinds of computers.
 

Products of this category:
LSG-2000: Mirror on optical axis. When measuring light source, the holder for light source has to move in a large space during the measurement.
LSG-1900: Lamp on optical axis. It overcomes the problem of instability of the tested light source when measuring light intensity. 
LSG-1800: With facility of double arms for turning the light source. When doing light measurement, the long measuring distance can easily be achieved.
LSG-1600: With facility of single arm for turning the light source when doing the measurement of light.
LSG-1200: The compact one is the best way for light intensity measurement of small or weak sources.
LSG-880: This goniophotometer is the best answer of how to measure light of LED cup lamp or spotlight.