Light detector

A light detector comprising:

• a substrate;
• and
• a membrane which is supported on a surface of the substrate so that a space is formed between the surface of the substrate and the membrane,
• wherein the membrane includes a first wiring layer and a second wiring layer which are opposite each other with a gap extending along a line interposed therebetween, a resistance layer which is electrically connected to each of the first wiring layer and the second wiring layer and has an electric resistance depending on a temperature, a light absorption layer which is opposite to the surface of the substrate, and a separation layer which is disposed between the first wiring layer and the light absorption layer, and the second wiring layer and the absorption layer, and
• wherein the light absorption layer includes a first region which spreads to the side opposite to the second wiring layer with respect to the first wiring layer when viewed from the thickness direction of the substrate and a second region which spreads to the side opposite to the first wiring layer with respect to the second wiring layer when viewed from the thickness direction of the substrate.