Thermal radiation detection device and system, as well as electronic device comprising such a device or system

A thermal radiation detection system comprising:

• a thermal radiation detection device comprising:
• a sensor array comprising a plurality of sensor elements;
• and
• an optical waveguide having a radiation input end and a radiation output end;
• wherein said radiation input end is configured to receive thermal radiation;
• wherein said radiation output end is operatively connected to said sensor array;
• wherein said optical waveguide is configured to transmit said received thermal radiation as a plurality of simultaneous thermal radiation signals;
• wherein said optical waveguide is comprised of a plurality of fibers, and each fiber of said plurality of fibers of said optical waveguide are arranged in a first two-dimensional pattern at said radiation input end, and in a second two-dimensional pattern at said radiation output end, said second two-dimensional pattern being different than said first two-dimensional pattern;
• and
• wherein at least one of said radiation input end and said radiation output end of said optical waveguide comprises a reflective surface, wherein a main plane of said reflective surface extends at a first angle to a main thermal radiation path of said optical waveguide, and wherein said reflective surface is configured to fold said main thermal radiation path by a second angle within said optical waveguide, and
• at least one of a camera or a guiding light source, wherein at least one of said camera or guiding light source are arranged such that an optical axis of said camera or an optical axis of said guiding light source is located at a maximum distance of 1.7 cm or 2.5 cm from a center axis of the optical waveguide of said thermal radiation detection device.