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. 11, 2017
Filed:
Sep. 02, 2015
Applicant:
Leica Camera Ag, Wetzlar, DE;
Inventor:
Alexander Martin, Gieβen, DE;
Assignee:
LEICA CAMERA AG, Wetzlar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01); G02B 3/02 (2006.01); G02B 9/00 (2006.01); G02B 9/08 (2006.01); G02B 9/64 (2006.01); G02B 27/00 (2006.01); G02B 7/10 (2006.01);
U.S. Cl.
CPC ...
G02B 9/64 (2013.01); G02B 7/10 (2013.01); G02B 13/18 (2013.01); G02B 27/0025 (2013.01);
Abstract
Wide-angle lens comprising floating element (G2) and aperture stop (BL) comprising a group (G1) of ten lens elements with refractive power sequence arranged in a manner mirrored in sign with respect to the stop (BL), wherein lens elements having positive and negative refractive power are arranged alternately in the light direction upstream and downstream of the stop (BL) and the group (G1) is displaceable for the purpose of focusing.