Patent · US Active

Thermal imaging camera and method for the determination of the lens parameters of an IR interchangeable lens of a thermal imaging camera

US8247770B2 · kind B2 · utility

11Cited by

0References

12Claims

0Family size

Assignee

Testo AG · DE

Inventor

Jörn Fischer · Steinheim an der Murr, DE

Key dates

Filing date	Mar 2, 2010
Grant date	Aug 21, 2012
Priority date	—
Expiry date	Mar 4, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02B23/12
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a thermal imaging camera (1) with an IR sensor arrangement (2) and an interchangeable IR lens (5), an image processing unit (12) and a data processing unit (13) are provided with which at least one feature (8, 9) can be extracted from a recorded IR image (6) and a numerical value (14) can be derived from this feature, wherein the numerical value (14) is determined by the distortion of the interchangeable IR lens (5), and a mapping (16) of lens characteristics (17, 18, 19) with the determinable numerical values (14) is stored.

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