Patent ID: 11895429
Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  C  G | IPC C  G  H

Claim 13:
14. An infrared imager, comprising:
a plurality of infrared detectors arranged to form a two-dimensional array, wherein each of the plurality of infrared detectors comprises:
an infrared light absorber configured to absorb infrared light and convert the infrared light into heat; wherein the infrared light absorber comprises a carbon nanotube structure, and the carbon nanotube structure comprises:
a first drawn carbon nanotube film comprising a plurality of first carbon nanotubes joined end-to-end by van der Waals attractive force and substantially extending along a first direction;
a second drawn carbon nanotube film comprising a plurality of second carbon nanotubes joined end-to-end by van der Waals attractive force and substantially extending along a second direction; and
a third drawn carbon nanotube film comprising a plurality of third carbon nanotubes joined end-to-end by van der Waals attractive force and substantially extending along a third direction;
wherein the first drawn carbon nanotube film, the second drawn carbon nanotube film, and the third drawn carbon nanotube film are stacked on and directly contacts with each other; and the first direction and the second direction form an angle of about 42 degrees to about 48 degrees, and the first direction and the third direction form an angle of about 84 degrees to about 96 degrees;

a thermoelectric element, wherein the infrared light absorber is located on the thermoelectric element; and
an electrical signal detecting element configured to detect a change of an electrical signal of the thermoelectric element;

a signal processor configured to process the electrical signal to form thermal field distribution data; and
an infrared image display configured to display an infrared thermal image according to the thermal field distribution data.