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:
Jun. 23, 1981
Filed:
Sep. 24, 1979
Glen E Miller, Redondo, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
Two fiberoptic cables are connected to a transparent hemiellipsoidal optical element at the foci thereof, at the back surface portion of the element. The fiberoptic cables are arranged so that their central axes, if continued into the element, would intersect approximately at the point of tangency on the curved front surface portion of the element with an imaginary plane parallel to the back surface portion. The geometry of the optical element is such that light entering the optical element through one fiberoptic cable is (1) substantially completely internally reflected in the optical element and exits through the other fiberoptic cable when the optical element is submerged in a first medium, and (2) substantially completely transmitted through the optical element into the surrounding medium when the element is in a second medium having a different index of refraction than the first medium.