The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 14, 1992

Filed:

Feb. 13, 1987
Applicant:
Inventors:

Fritz Wondrazek, Pfaffenhofen, DE;

Andreas Hahn, Sauerlach, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02F / ; G01J / ;
U.S. Cl.
CPC ...
359241 ; 385 15 ; 385 33 ; 250205 ;
Abstract

For limiting the maximum radiation intensity of a radiation source, in particular a laser, a transparent breakdown cell (4, 10, 17) with defined breakdown threshold value is placed within the ray path of the radiation source (2, 8, 15).


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