Automatic optical path adjustment in home OCT

US10595722B1 · kind B1 · utility

Assignee

• Notal Vision Ltd. · IL

Inventors

• Amit Pascal · Haifa, IL
• Omer Rafaeli · Rishpon, IL
• Yair Alster · Menlo Park, US
• Gidon Goren-Gratzyani · Givatayim, IL

Key dates

• Filing date: May 28, 2019
• Grant date: Mar 24, 2020
• Expiry date: May 28, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B2290/35
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Retinal imaging systems and related methods employ a user specific approach for controlling the reference arm length in an optical coherence tomography (OCT) imaging device. A method includes restraining a user's head relative to an OCT imaging device. A reference arm length adjustment module is controlled to vary a reference arm length to search a user specific range of reference arm lengths to identify a reference arm length for which the OCT image detector produces an OCT signal corresponding to the retina of the user. The user specific range of reference arm lengths covers a smaller range of reference arm lengths than a reference arm length adjustment range of the reference arm length adjustment module.