Optoelectronic sensor used for measuring solar radiation, has optical filter whose transmission characteristic is proportional to photon energy and inversely proportional to external quantum efficiency of photovoltaic cell

摘要

The optoelectronic sensor has an optical filter whose a transmission characteristic is proportional to the photon energy and inversely proportional to the external quantum efficiency of the photovoltaic cell over a wavelength range of 20 nm. The external quantum efficiency of the photoelectric cell within the wavelength range is predominantly greater than 10% of the maximum value. The optical filter is provided with several layers with different refractive index. The filter layers are arranged on the light-facing side of a light-sensitive photocell.