LED Solar Simulator
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 A+A+A+ IEC 60904-9 Ed. 3 standards for spectral match, uniformity of irradiance, and temporal stability.
LumiSun™ 50 LED Solar Simulator Highlights:
- IEC class A+A+A+ compliant
- Long-life multispectral LEDs
- Irradiance from 0.1 to 1.2 SUNS
- Spectral range 350 - 1,250 nm
- Adjustable output spectrum
- Uniform and stable illumination
- Steady-state or pulsed modes
- Low cost of ownership
LumiSun™ 50 LED Solar Simulator Overview
Innovations in Optics’ patent pending 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 35-wavelength array of long-lasting LEDs.
This unit features a preset solar reference spectrum that emulates 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 1.2 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 [%] | Spectral Match [%] |
|---|---|---|---|
| 300 - 470 | 121 | 14.6 | 100 ±12.5 |
| 471 - 560 | 144 | 17.4 | |
| 561 - 660 | 150 | 18.2 | |
| 661 - 770 | 136 | 16.5 | |
| 771 - 920 | 145 | 17.6 | |
| 920 - 1200 | 130 | 15.7 | |
| Total | 8261 | 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 826 W/m2 is an abridged definition of 1 SUN irradiance when integrating over the 350 – 1,250 nm interval. See the ASTM G173−03 (2020) reference solar spectrum.
System Properties and Specifications
| Compliance | Class A+A+A+ (IEC 60904-9 Ed. 3) | ||
| Irradiance | 0.1 - 1.2 SUNS | ||
| Spectrum | 350 - 1,250 nm | AM1.5G Coverage: 100% | AM1.5G Deviation: < 12% |
| Illumination field | 50 X 50 mm | ||
| Cone half angle | 12.3° | ||
| Non-uniformity | < 1% | ||
| Working distance | 124 mm (light source exit aperture to test plane) | ||
| Warm-up time | 5 minutes from cold start | ||
| Instability | Short-term (STI): < 0.1% | Long-term (LTI): < 1% | |
| Output control |
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| Operation modes | Steady-state and pulsed (external trigger, 200 μsec minimum pulse width) | ||
| Communication interfaces |
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| Thermal management | Air cooling with sensors for safety shutdown | ||
| Operating environment | 20 - 40°C, < 85% relative humidity (non-condensing) | ||
| Dimensions (W H D)1 | 18 X 16.5 X 18 cm | 7 X 6.4 X 7" | |
| Weight1 | 3.2 kg | 7.1 lbs | |
| Power supply | 24 VDC / 100 W | ||
1Without rack and pinion mounting hardware