Photosensitive device and camera using the same

A photosensitive device, the device comprising:

• a plurality of photosensitive units distributed in an array, wherein each photosensitive unit is configured to receive and convert light signal, and each photosensitive unit comprises:
• a polarizer configured to transform an incident light into a polarized light;
• a detecting element configured to form a temperature difference or a potential difference between two points of the detecting element when exposed to the polarized light, wherein the detecting element comprises a carbon nanotube structure comprising a plurality of carbon nanotubes oriented along the same direction, and angles between a polarizing direction of the polarized light and an oriented direction of the plurality of carbon nanotubes is adjustable;
• a measuring device configured to measure the temperature difference or the potential difference;
• and
• a data processor configured to analyze and calculate the potential differences or the temperature differences.