Patent · US Active

Apparatus for measurement of the axial length of an eye

US7884946B2 · kind B2 · utility

4Cited by

13References

10Claims

0Family size

Assignee

Lumentrics, Inc. · US

Inventors

Todd Blalock · Penfield, US
Filipp V. Ignatovich · Rochester, US

Key dates

Filing date	Apr 28, 2008
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Apr 28, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01B2290/70
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for measuring the axial length of a human eye, the apparatus comprising a low coherence light source; a beam splitter; a fast displacement module for rapidly varying the path length within a reference arm of an interferometer; a laser directing a laser beam that is co-propagating with light from the low coherence light source into the displacement module.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.