公开(公告)号：US20220221339A1

公开(公告)日：2022-07-14

申请号：US17603487

申请日：2020-04-03

Applicant: University of Rochester

Inventor： Changsik Yoon ,  Jannick P. Rolland-Thompson ,  Aaron Bauer

IPC: G01J3/18 ,  G01B9/02091 ,  G01J3/02

Abstract: A detector system for Fourier spectroscopy such as a spectral domain optical coherence tomography instrument includes a diffractive optic for diffracting the interfering light into angularly dispersed wavenumbers, a prism for reduces a nonlinear angular dispersion among the wavenumbers, and a focusing optic for converting the angularly dispersed wavenumbers from the prism into spatially distributed wavenumbers along a detector having an array of pixels. A field lens between the focusing optic and the detector has a freeform surface for more evenly distributing the wavenumbers along the array of pixels.

公开(公告)号：US12085445B2

公开(公告)日：2024-09-10

申请号：US17603487

申请日：2020-04-03

Applicant: University of Rochester

Inventor： Changsik Yoon ,  Jannick P. Rolland-Thompson ,  Aaron Bauer

IPC: G01J3/18 ,  G01B9/02091 ,  G01J3/02 ,  G01J3/12

CPC classification number: G01J3/18 ,  G01B9/02091 ,  G01J3/0208 ,  G01J2003/1208

Abstract: A detector system for Fourier spectroscopy such as a spectral domain optical coherence tomography instrument includes a diffractive optic for diffracting the interfering light into angularly dispersed wavenumbers, a prism for reduces a nonlinear angular dispersion among the wavenumbers, and a focusing optic for converting the angularly dispersed wavenumbers from the prism into spatially distributed wavenumbers along a detector having an array of pixels. A field lens between the focusing optic and the detector has a freeform surface for more evenly distributing the wavenumbers along the array of pixels.