Compact and Flexible Solar Simulation Technology for Research Labs
An innovative benchtop LED solar simulator, LumiSun™ 50 is perfect for measuring photovoltaic cells’ efficiency and spectral response in research labs. Photochemistry, photobiology, materials testing – all these use cases benefit from LumiSun™ 50’s performance
Featuring the same LED array and optics architecture as Innovations in Optics’ OEM solar simulators favored by leading PV manufacturers worldwide. LumiSun™ 50 lives up to Class AAA IEC 60904-9 Ed. 2, ASTM E927-19, and JIS C 8904-9 standards for spectral match, uniformity of irradiance, and temporal stability.
LumiSun™ 50 LED Solar Simulator Highlights:
- IEC class AAA-compliant
- Long-life multispectral LEDs
- Irradiance from 0.1 to 1.5 SUNS
- Adjustable output spectrum
- Uniform and stable illumination
- Steady-state or pulsed modes
- Low cost of ownership
- User-friendly front-panel touch screen
LumiSun™ 50 LED Solar Simulator Overview
Innovations in Optics’ patented light collection and projection optics certainly benefit LumiSun™ 50’s performance: It provides a 50 X 50 mm illumination field with excellent uniformity, outshining other LED-based designs on the market today. Unlike conventional solar simulators equipped with discharge lamps, LumiSun™ 50 incorporates a multi-wavelength array of long-lasting LEDs.
This unit features three preset solar reference spectra that emulate sunlight with remarkable accuracy. You can also configure user-defined spectra by controlling all installed LEDs individually and adjust LumiSun™ 50’s irradiance from 0.1 to 1.5 SUNS.
Setting up the LumiSun™ 50 solar simulator is an exercise in convenience. The LED light source sits in a freely rotatable air-cooled housing. A converging pair of red dots from integrated laser pointers helps you find the optimal working distance. An RS-485 interface with Modbus RTU communication protocol is built in to enable remote control.
LumiSun™ 50 LED Solar Simulator Output
Irradiance Spectrum at 1 SUN
| Wavelength [nm] | Irradiance [W/m2] | Share [%] |
|---|---|---|
| 400 - 500 | 186 | 20.5 |
| 500 - 600 | 185 | 20.4 |
| 600 - 700 | 159 | 17.5 |
| 700 - 800 | 128 | 14.1 |
| 800 - 900 | 101 | 11.1 |
| 900 - 1100 | 149 | 16.4 |
| Total | 9081 | 100 |
1The total solar irradiance of the AM1.5 Global Spectrum (AM1.5G) is defined as 1,000 W/m2 integrated over a 0 – 4,000 nm wavelength interval. The above total of 908 W/m2 is an abridged definition of 1 SUN irradiance when integrating over the 400 – 1,100 nm interval. See the ASTM G173−03 (2020) reference solar spectrum.
System Properties and Specifications
| Compliance | Class AAA (IEC 60904-9 Ed. 2, ASTM E927-19, JIS C 8904-9) | ||
| Irradiance | 0.1 - 1.5 SUNS | ||
| Spectrum | 400 - 1,100 nm | ||
| Output control |
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| Illumination field | 50 X 50 mm | ||
| Working distance | 151 mm (light source exit aperture to test plane) | ||
| Operation modes | Steady-state and pulsed (external trigger, 200 μsec minimum pulse width) | ||
| Warm-up time | 5 minutes from cold start | ||
| Long-term instability | ≤ 0.3% for 60 hours (after 5-minute warm-up) | ||
| Operating environment | 20 - 40°C, < 85% relative humidity (non-condensing) | ||
| Thermal management | Air cooling with sensors for safety shutdown | ||
| Communication interfaces | RS-485 (Modbus) | ||
| Dimensions (W H D)1 | 16 X 21 X 10 cm | 6.3 X 8.1 X 3.7" | |
| Weight1 | 0.5 kg | 1.1 lbs | |
| Power supply | 24 VDC / 100 W | ||
1Without rack and pinion mounting hardware