Patent ID: 11971486
Assignee: NANJING UNIVERSITY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A three-dimensional imaging method based on a superconducting nanowire photon detection array comprising: forming a superconducting nanowire photon detection array using a superconducting nanowire single photon detector (SNSPD) as a pixel; using a lens array to divide laser incident light multiple beams equal to numbers of pixels, which converge to photosensitive surface area of the SNSPD; using a pulsed laser emits pulsed light to surface of an object to be measured, the pulsed light is reflected on the surface of the object, a reflected back light signal passes through lens, the SNSPD detects a return signal, and records time difference of each emitted photon and received light signal as an emitted photon round trip time; the number of photons detected by each single-image detector is collected; a grayscale value of the pixel is calculated based on the number of photons, and plotted as a grayscale image, the distance between the object and the SNSPD is calculated based on the emitted photon round-trip time of each photon, and a 3D image of the object is reconstructed based on the grayscale image and the distance between the object and the pixel.