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:
Apr. 24, 2012
Filed:
Jun. 20, 2006
Applicant:
Friedhelm Harnischmacher, Menden, DE;
Inventor:
Friedhelm Harnischmacher, Menden, DE;
Assignee:
Cooper Crouse-Hinds GmbH, Soest, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A portable lighting device has at least one LED light source (). Associated with this light source are a voltage supply () which can be switched on and off and a light distribution device () for varying a luminous intensity distribution of the light source (). In order to improve the light distribution device in the case of such a portable lighting device in a simple way in design terms and without a considerable amount of space being required, it has a lens system () which can be varied in its distance in relation to the light source ().