US 12,149,860 B2
Infrared detector and infrared imager
Yuan-Hao Jin, Beijing (CN); Qun-Qing Li, Beijing (CN); and Shou-Shan Fan, Beijing (CN)
Assigned to Tsinghua University, Beijing (CN); and HON HAI PRECISION INDUSTRY CO., LTD., New Taipei (TW)
Filed by Tsinghua University, Beijing (CN); and HON HAI PRECISION INDUSTRY CO., LTD., New Taipei (TW)
Filed on Mar. 29, 2021, as Appl. No. 17/215,219.
Claims priority of application No. 202011471852.0 (CN), filed on Dec. 14, 2020.
Prior Publication US 2022/0191409 A1, Jun. 16, 2022
Int. Cl. H04N 5/33 (2023.01); G01J 5/00 (2022.01); G01J 5/02 (2022.01); G01J 5/12 (2006.01); G01J 5/14 (2006.01)
CPC H04N 5/33 (2013.01) [G01J 5/14 (2013.01); G01J 2005/0077 (2013.01); G01J 5/02 (2013.01); G01J 2005/123 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An infrared detector, comprising:
an infrared light absorber configured to absorb infrared light and convert the infrared light into heat, wherein the infrared light absorber comprises a plurality of carbon nanotubes entangled with each other to form a network structure and a plurality of carbon particles in the network structure;
a thermoelectric element, wherein the infrared light absorber is in direct contact with the thermoelectric element, and lengthwise extending directions of the plurality of carbon nanotubes are parallel to a contact surface between the thermoelectric element and the infrared light absorber; and
an electrical signal detecting element configured to detect a change of an electrical signal of the thermoelectric element.