LDRvastukset
LDR vastukset, also known as photoresistors or light-dependent resistors, are electronic components whose resistance decreases with increasing incident light intensity. They are typically made from semiconductor materials like cadmium sulfide (CdS) or lead sulfide (PbS). The core principle of operation involves the photoelectric effect, where photons striking the semiconductor material excite electrons, increasing the number of charge carriers available and thus lowering the resistance.
The spectral response of an LDR varies depending on the material used. For instance, cadmium sulfide LDRs
LDR vastukset find widespread application in various electronic circuits where light detection is required. Common uses