公开(公告)号：US20240245281A1

公开(公告)日：2024-07-25

申请号：US18158801

申请日：2023-01-24

Applicant: Canon U.S.A., Inc.

Inventor： Badr Elmaanaoui ,  Leonid Pesok ,  Mostafa Raziq

IPC: A61B1/00 ,  A61B1/045 ,  A61B1/06 ,  A61B1/07 ,  A61B1/313 ,  G01J1/44

CPC classification number: A61B1/00006 ,  A61B1/045 ,  A61B1/0655 ,  A61B1/07 ,  A61B1/3137 ,  G01J1/44

Abstract: A wavelength interrogation apparatus includes an optical fiber with a fiber core and an interference pattern in the fiber core, one or more photodiodes or photo-sensors to convert from a transmittance light of the optical fiber to an electrical signal, and an electrical circuit to generate a pulse with a predetermined duration, wherein the apparatus provides image acquisition at accurate start wavelength. The electrical circuit can include a first amplifier, a first differentiator or high-pass filter, a comparator, and a multivibrator, and can include other components.