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:
May. 26, 2015
Filed:
May. 30, 2013
Olympus Medical Systems Corp., Tokyo, JP;
Nobuhiko Sone, Tokyo, JP;
OLYMPUS MEDICAL SYSTEMS CORP., Tokyo, JP;
Abstract
To provide excellent illumination over entire range from near view to distant view to achieve clear observation over entire range from near view to distant view. Provided is an endoscope including an imaging optical systemprovided in insertion portion at a distal end thereof and for observing an object to be observed, and a plurality of illumination optical systemsprovided in the insertion portionand for distributing the illuminating light emitted from a light source to the object to be observed, the illumination optical systems being directed in the same direction each other to illuminate the same field of view, wherein at least one of the plurality of illumination optical systems is a first illumination optical systemhaving a convex lens, and at least one of the others is a second illumination optical systemhaving a concave lens.