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:
May. 12, 2020

Filed:

Oct. 18, 2017
Applicant:

Heraeus Noblelight Gmbh, Hanau, DE;

Inventor:

Jan Winderlich, Frankfurt, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/10 (2020.01); H05B 41/39 (2006.01); H01J 61/52 (2006.01); H05B 41/295 (2006.01); H01J 61/20 (2006.01);
U.S. Cl.
CPC ...
H05B 41/39 (2013.01); H01J 61/523 (2013.01); H05B 41/295 (2013.01); H01J 61/20 (2013.01);
Abstract

A lamp system, and a method of operating the lamp system, are provided. The lamp system includes a gas discharge lamp, an electronic ballast and a control unit. A performance influencing control variable of the lamp system is used. The method allows operation with a high emission performance independent of the design thereof and of any potential changes caused by lamp aging and without any knowledge of the optimal operating temperature. According to the invention a light intensity control is provided, in which an actual value of a light intensity emitted by the gas discharge lamp is measured using a light sensor and the emitted light intensity is used as an actuating variable.


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