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. 29, 2024
Filed:
Sep. 01, 2023
Applicant:
Drägerwerk Ag & Co. Kgaa, Lübeck, DE;
Inventors:
Ralf Buchtal, Lübeck, DE;
Hanno Kretschmann, Lübeck, DE;
Assignee:
DRÄGERWERK AG & CO. KGAA, Lübeck, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 14/02 (2006.01); F21V 21/14 (2006.01); F21V 21/40 (2006.01); F21W 131/205 (2006.01); G01S 7/51 (2006.01); G01S 17/10 (2020.01);
U.S. Cl.
CPC ...
F21V 14/02 (2013.01); F21V 21/14 (2013.01); F21V 21/40 (2013.01); G01S 7/51 (2013.01); G01S 17/10 (2013.01); F21W 2131/205 (2013.01);
Abstract
An illumination device () includes an illumination unit () which illuminates a surface (Ob). The position and the orientation of the illumination unit () relative to the surface (Ob) can be changed. A distance sensor () measures an indicator of the current distance between the illumination unit () and the surface (Ob). A signal processing control unit () is configured to control an output unit () of the illumination unit (). The controlled output unit () outputs an indication of how much the measured distance deviates from a predetermined reference distance (Ref, Ref).