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:
Mar. 10, 2020
Filed:
May. 04, 2012
Applicants:
Jin U. Kang, Ellicott City, MD (US);
Xuan Liu, Baltimore, MD (US);
Inventors:
Jin U. Kang, Ellicott City, MD (US);
Xuan Liu, Baltimore, MD (US);
Assignee:
The Johns Hopkins University, Baltimore, MD (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/00 (2006.01); A61B 1/06 (2006.01); A61B 1/07 (2006.01);
U.S. Cl.
CPC ...
A61B 1/0623 (2013.01); A61B 1/00165 (2013.01); A61B 1/0684 (2013.01); A61B 1/07 (2013.01); A61B 1/00188 (2013.01);
Abstract
A dark field endoscopic microscope includes an illumination system, an objective lens unit arranged in an optical path of the illumination system, an optical fiber bundle optically coupled to the objective lens unit, and an observation system arranged in an optical return path from the optical fiber bundle. The illumination system provides oblique off-axial illumination while axial rays are at least attenuated.