Patent · US Active

System and method for enhanced predictive autofocusing

US8878923B2 · kind B2 · utility

46Cited by

16References

21Claims

0Family size

Assignee

General Electric Company · US

Inventors

David L. Henderson · Austin, US
Kevin Bernard Kenny · Niskayuna, US
Siavash Yazdanfar · Niskayuna, US

Key dates

Filing date	Apr 13, 2009
Grant date	Nov 4, 2014
Priority date	—
Expiry date	Feb 14, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/365
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In an imaging device having an objective and a stage for holding a sample to be imaged, a method for autofocusing is presented. The method includes determining a measured focus value corresponding to at least a first of a plurality of logical image segments. Further, the method includes imaging the first logical image segment using the measured focus value. The method also includes determining a predicted focus value for a second of the plurality of logical image segments using the measured focus value and a stored focus variation parameter. In addition, the method includes imaging the second logical image segment using the predicted focus value.

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