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LumiSun 50

LED Benchtop Solar Simulator

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LumiSun 50

lumisun

The LumiSun-50 offers A+A+A+ illumination across a 50x50mm area, making it perfect for research labs to measure the efficiency and spectral response of photovoltaic (PV) cells. It is also suitable for various other applications, including photobiology, solar degradation studies, and other sunlight research. Unlike bulky, costly, and environmentally harmful lamp-based systems, the LumiSun-50 utilizes a multi-wavelength array of long-lasting LEDs. These LEDs are independently driven and allow users to control and adjust the spectra.


The Highlight Features

  • IEC class A+A+A+ compliant
  • Compact size
  • Irradiance 0.1 to 1.2 Suns
  • Long LED lifetime >20,000 hours
  • Spectral range 350-1250nm
  •  35 l  individually controlled
  • 50 x 50mm highly uniform area
  • RS485 & USB computer connection (Modbus RTU)
  • Steady state or pulsed mode
Vital Vision Pte Ltd logo 2022
ModelLumiSun-50
Solar simulator class A+A+A+ IEC 60904-9 Ed. 3
Irradiance range of solar simulator 0.1 to 1.2 Suns2 350-1250 nm
Illumination area 50 mm x 50 mm At working distance 124.2 mm
Expected Lifetime >20,000 hours L70
Spectral Deviation< 15%; <12%; < 9% 300-1200nm; 350-1250nm; 400-1100nm
Spectral Coverage100%; 98% 350-1250nm; 300-1250nm
Non-UniformityA+ < 1%
Instability (16 hours @ 1 Sun2)A+ < 1%
Temporal Instability (STI)< 0.1 % 50Hz sampling over 3s; Exceeds A+
Long-term temporal instability (LTI) A+ < 1% 1,000 hours
Spectral Match (IEC binning) A+ 300-1200nm per IEC spec
Working distance (WD) 124.2 mm Source exit aperture to test plane
Maximum angle subtended at (WD) Half angle 12.3° Full cone angle 24.6°
Warm up time for stable irradiance < 1s (system on) From enable to within 1% final output (on state)
Temperature Control of LEDs Yes With TEC module; set points at 25˚ and 40˚
Operating environment 20°C to 40°C <85%, relative humidity, non-condensing
Thermal sensors Safety shutdown LED and driver PCBs. Controlled by software
PC Communication RS485 and USB RS485 connector dual RJ45, USB (type B)
RS485 Communication Protocol MODBUS RTU 19.2 kBd – 230.4 kBd
USB Communication Protocol MODBUS RTU via COM port redirection
Maximum on-pulse duration< 200 µs and CW
Maximum trigger frequency >10 kHz
Maximum rise time< 100 µs Time to stable output from trigger
Maximum Time to Stable Output < 10 ms With changes to intensity set point
System Width (including screw heads) 17.88 cm See ICD
System Depth 15.41 cm See ICD (17.9 cm with mounting pivot)
System Height (image plane to top) 28.97 cm See ICD (16.36 cm enclosure only)
Weight 3.2 Kg Without rack and pinion mounting hardware
Electrical voltage input 24 VDC +/- 5% < 100W power consumption
Over Temperature Response Software control

Spectral Match Values and Irradiance at 1.0 SUN

Wavelength Range(nm)Measured Irradiance(W/m2)Percentage of totalirradiance (%)Spectral match to spectral bins (%)
300-470
121.1514.6887.5-112.5
471-560143.9717.4587.5-112.5
561-660149.4918.1187.5-112.5
661-770135.7116.4487.5-112.5
771-920 144.75 17.54 87.5-112.5
921-1200130.1915.7887.5-112.5

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