Solar simulator spectroradiometer LS-100 is developed for the spectral irradiance
measurement of the solar simulator, which is mainly used for the evaluation of the
photovoltaic cells.
The compact grating spectrometer is integrated in the body to measure the spectral
irradiance by using photodiode array. The obtained data is downloaded to PC, and the
spectral irradiance is calculated by the attached software. Attached software 1) compares
the obtained data with the Reference solar radiation at AM1.5 provided by JIS C 8941, 2)
calculate the cumulative spectral irradiance in the specified wavelength, JIS C8912 spectral
mismatch, and the deference/ratio comparing to the Reference data.
JIS C 8941-2009 Secondary reference crystalline solar cell
JIS C 8912-2011 Solar simulator for crystalline solar cells and modules
1. Long Stability
The less aging diffuser, grating spectrometer and diode-array are adopted in LS-100.
LS-100 is durable because there is no movable part to change the wavelength. This is
accomplished by the adoption of photodiode-array.
2. Substantial software functions
LS-100 software automatically determines the optimal shutter opening time for the spectral
measurement based on the intensity of the light source. It saves the obtained measured
spectral data as the Reference data, and compares it with the other data.
Both “Catalogue View” of the plural spectral data and the “Detailed View” of the single
spectral data are available by LS-100 analysis software. The measured data of 1nm or
5nm interval can be saved by the setting of this software. The obtained data can be
compared with the standard solar radiation provided by JIS.