Patent · US Active

Predictive autofocusing

US8179432B2 · kind B2 · utility

7Cited by

7References

21Claims

0Family size

Assignee

General Electric Company · US

Inventors

Siavash Yazdanfar · Niskayuna, US
Robert John Filkins · Niskayuna, US
Elizabeth Lockenberg Dixon · Delanson, US
Krenar Tasimi · Naugatuck, US
Kevin Bernard Kenny · Niskayuna, US

Key dates

Filing date	Aug 23, 2007
Grant date	May 15, 2012
Priority date	—
Expiry date	Oct 20, 2030

Classification

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

Abstract

A method of autofocusing includes capturing first, second and third images of a sample, at respective first, second and third sample distances and respective first, second and third lateral positions determined with respect to an objective; determining a quantitative characteristic for the first, second and third images; determining a primary sample distance based upon at least the quantitative characteristics for the first, second, and third images; and capturing a primary image of the sample at the primary sample distance and at a primary lateral position that is offset from the first, second and third lateral positions.

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