INFRARED DETECTOR, CAMERA MODULE, AND ELECTRONIC DEVICE

Provided in the embodiments of the present application are an infrared detector, a camera module, and an electronic device. The infrared detector comprises an optical window, a thin film layer, a reflection layer, and a readout circuit layer which are sequentially stacked, wherein the thin film layer comprises an absorption layer and a conversion layer, and the absorption layer is located between the optical window and the conversion layer; the optical window is configured to allow incidence of infrared light, the absorption layer is configured to absorb the infrared light and convert the infrared light into heat energy, and the conversion layer is configured to convert the heat energy into an electrical signal; the reflection layer is configured to reflect the infrared light so as to increase the infrared light absorbed by the absorption layer; a readout circuit is configured to process the electrical signal, and the processed electrical signal is configured to form a thermal infrared image; and the infrared