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. 22, 2007
Filed:
Jan. 27, 2006
John C. Tesar, Tucson, AZ (US);
Eric L. Hale, Altadena, CA (US);
Nathan Jon Schara, Pasadena, CA (US);
Hans David Hoeg, Arcadia, CA (US);
John C. Tesar, Tucson, AZ (US);
Eric L. Hale, Altadena, CA (US);
Nathan Jon Schara, Pasadena, CA (US);
Hans David Hoeg, Arcadia, CA (US);
Karl Storz Development Corp., Goleta, CA (US);
Abstract
A optical system for a viewing instrument with a variable direction of view is disclosed generally comprising shaft, first and second reflectors located at the distal end of the shaft, where the first reflector rotates about an axis angularly offset from the longitudinal axis of the shaft, and an entrance pupil positioned in the optical path created by the reflectors and preceding the reflecting surface of the second reflector. In certain embodiments, the entrance pupil comprises an aperture stop positioned between the first and second reflectors. In some embodiments, the system includes negative and positive lenses located adjacent the entrance and exit faces of the first reflector.