Reference solar cell has solar cell accommodated in housing and selected according to spectral or radiometric requirements, where spectral screen exposes part of graduated filter for transmission of rays to solar cell

摘要

The reference solar cell has a solar cell (201) accommodated in a housing (200), and are selected according to the spectral or radiometric requirements. The solar cells are permanently or electrically separated from the outgoing solar cell, and are equipped with temperature sensors (203). A graduated filter (208) with location-dependent transmission lines or bands is attached to the solar cell. A spectral screen (209) is provided that exposes part of the graduated filter for the transmission of rays to the solar cell.