Patents Assigned to LighTopTech Corp.
  • Patent number: 12690768
    Abstract: The present system employs optical coherence tomography (OCT) or optical coherence microscopy (OCM) systems, including ultra-high resolution Gabor-domain optical coherence microscopy (GD-OCM), into a 3D flow imaging technique. This technique models the repeated scans as Gaussian latent variables, with the common variance representing both static tissue structure and dynamic blood flow, and the anisotropic unique variance representing tissue motion in specific frames. Since the motion generated variance is independent from that of the structure or the flow, by iteratively maximizing the combined log-likelihood probability of these two variances modeled through exploratory factor analysis, the unique variance (or the tissue motion) may be largely excluded. In the common variance, the dynamic blood flow may be separated from the static tissue structure, by integrating the factors that represent the relatively low levels of correlation.
    Type: Grant
    Filed: December 31, 2024
    Date of Patent: July 28, 2026
    Assignee: LighTopTech Corp.
    Inventors: Wei Wei, Cristina Canavesi, Andrea Cogliati
  • Patent number: 12292558
    Abstract: A low-coherence interferometry imaging system for imaging translucent samples, wherein the system includes an optical coherence microscopy (OCM) mode and an optical coherence tomography (OCT) mode, and wherein the system can selectively employ either mode without requiring re-positioning of a sample under test. The system provides for the selective disposition of the OCM mode or the OCT mode in an optical path intermediate a scanning system and an imaging objective.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: May 6, 2025
    Assignee: LighTopTech Corp.
    Inventors: Eric L. Buckland, Cristina Canavesi
  • Patent number: 12207878
    Abstract: The present system employs optical coherence tomography (OCT) or optical coherence microscopy (OCM) systems, including ultra-high resolution Gabor-domain optical coherence microscopy (GD-OCM), into a 3D flow imaging technique. This technique models the repeated scans as Gaussian latent variables, with the common variance representing both static tissue structure and dynamic blood flow, and the anisotropic unique variance representing tissue motion in specific frames. Since the motion generated variance is independent from that of the structure or the flow, by iteratively maximizing the combined log-likelihood probability of these two variances modeled through exploratory factor analysis, the unique variance (or the tissue motion) may be largely excluded. In the common variance, the dynamic blood flow may be separated from the static tissue structure, by integrating the factors that represent the relatively low levels of correlation.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 28, 2025
    Assignee: LighTopTech Corp.
    Inventors: Wei Wei, Cristina Canavesi, Andrea Cogliati
  • Patent number: 11094064
    Abstract: A system for non-contact imaging of corneal tissue stored in a viewing chamber using Gabor-domain optical coherence microscopy (GDOCM), wherein a 3D numerical flattening procedure is applied to the image data to produce an at least substantially artifact-free en face view of the endothelium.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: August 17, 2021
    Assignee: LighTopTech Corp.
    Inventors: Cristina Canavesi, Andrea Cogliati