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.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Aug. 30, 2023
Drägerwerk Ag & Co. Kgaa, Lübeck, DE;
Hanno Kretschmann, Lübeck, DE;
Drägerwerk AG & Co. KGaA, Lübeck, DE;
Abstract
An illumination device () with a main illumination unit () and an auxiliary illumination unit (). Each illumination unit () includes a plurality of light source groups, respectively, which can be controlled individually. The maximum illuminance achieved by the main illumination unit () on an illuminated surface (Ob) is several times greater than the maximum illuminance achieved by the auxiliary illumination unit (). Thelight field (light field diameter) of the main illumination unit () on the surface (Ob) has a significantly smaller area than the dlight field of the auxiliary illumination unit (). The switched-on auxiliary illumination unit () is able to reduce the contrast of the illumination device ().