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:
Jul. 22, 2014
Filed:
Mar. 17, 2011
Sigrun Kammans, Herborn, DE;
Sigrun Kammans, Herborn, DE;
Leica Camera AG, Solms, DE;
Abstract
An apparatus for illuminating a marking, which is applied on a transparent reticle in the form of a diffraction structure, wherein illuminating beams are injected into the reticle via a side edge surface of the reticle such that they are emitted after diffraction at the marking perpendicular to the plane of the reticle, wherein a concavely curved mirror having two focal points is attached to the side edge surface such that a light source is arranged in the region of the first focal point and the marking is arranged in the region of the second focal point, wherein a second mirror having two focal points is attached such that a second light source with a second emission wavelength is arranged in the first focal point thereof and the marking is arranged in the region of the second focal point of the second mirror.