Patent · US Active

Device for machining an object by means of laser radiation

US9498844B2 · kind B2 · utility

0Cited by

10References

18Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Marco Hanft · Jena, DE
Dirk Muehlhoff · Jena, DE
Mario Gerlach · Hohen Neuendorf, DE
Elke Ebert · Jena, DE

Key dates

Filing date	Jul 12, 2005
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Apr 6, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2009/00897
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a device for machining an object by laser radiation, in particular by using the photodisruption method. Said device comprises an observation device for imaging the object and a laser scanning device by which the laser radiation is passed over a predetermined sector of the object for scanning said sector. According to the invention, such a device includes the observation device with a first lens for imaging the object; the laser scanning device with a second lens, through which the laser radiation is guided, in which both lenses with regard to the dimension of the regions to be produced in the images and/or with regard to their focal intercept are different from each other. This invention alternately images the respective region of the object in a first operating mode by the first lens and in a second operating mode by the second lens. It is thus possible to use in both operating modes a lens adapted to the intended imaging purpose.

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