Radiation detector

摘要

An encapsulant 9 for a photosensitive cell 1 contains a pigment to equalize the response of the cell to visible radiation. The encapsulant may form a lens 10 or be Fresnel lens shaped to provide a substantially uniform polar response. In one embodiment a silicon solar cell intended for use in horticulture and agriculture has a peak response towards the red end of the spectrum and may be encapsulated in a resin containing a cyan pigment. A layer of resin containing an opaque white pigment may be applied on the back face of the cell. Also disclosed is a mounting arrangement utilizing an extension of the encapsulation material.