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. 29, 1997
Filed:
Aug. 17, 1995
Applicant:
Inventors:
Christa Dietzsch, Jena, DE;
Eberhard Dietzsch, Jena, DE;
Assignee:
ETB Endoskopische Technik GmbH Berlin, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359435 ; 359362 ; 359434 ;
Abstract
A telecentric relay lens system is provided with field lenses in the vicinity of an object and an image, respectively, at both sides of a centrally arranged lens member. In order to produce distortion the field lenses include cemented surfaces, the cemented surface of one of the field lenses being a collective surface, the cemented surface of the other of the field lenses, being oppositely arranged relative to the central lens member, being a diverging surface.