Device for swept source optical coherence domain reflectometry

US9044164B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Martin Hacker · Jena, DE
• Ralf Ebersbach · Schmölln, DE
• Thomas Pabst · Leonberg, DE
• Ulf Peterlein · Jena, DE
• Gerard Antkowiak · Jena, DE
• Roland Bergner · Jena, DE
• Ingo Koschmieder · Jena, DE

Key dates

• Filing date: Mar 14, 2014
• Grant date: Jun 2, 2015
• Expiry date: Mar 14, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B2290/45
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of δk<168 m−1 and the adjustment of the light source is carried out in τ<44 s/(D*k0).