Invention Grant
US07705292B2 Method and apparatus for detecting a condition of an optical element
有权
用于检测光学元件的状态的方法和装置
- Patent Title: Method and apparatus for detecting a condition of an optical element
- Patent Title (中): 用于检测光学元件的状态的方法和装置
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Application No.: US12139381Application Date: 2008-06-13
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Publication No.: US07705292B2Publication Date: 2010-04-27
- Inventor: Gerhard Hammann , Dieter Hallasch , Juergen Hohenadel
- Applicant: Gerhard Hammann , Dieter Hallasch , Juergen Hohenadel
- Applicant Address: DE Ditzingen
- Assignee: TRUMPF Werkzeugmaschinen GmbH + Co. KG
- Current Assignee: TRUMPF Werkzeugmaschinen GmbH + Co. KG
- Current Assignee Address: DE Ditzingen
- Agency: Fish & Richardson P.C.
- Main IPC: G01H5/00
- IPC: G01H5/00
Abstract:
A condition or detecting a change in the condition of an optical element of a laser arrangement is detected. An ultrasonic signal is coupled into an optical element such that the ultrasonic signal travels along a path within the optical element, and a transit time or a change in transit time for the ultrasonic signal to travel along the path within the optical element is detected.
Public/Granted literature
- US20090007675A1 DETECTING A CONDITION OF AN OPTICAL ELEMENT Public/Granted day:2009-01-08
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