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:
Feb. 14, 2017
Filed:
Jul. 21, 2015
Lockheed Martin Corporation, Bethesda, MD (US);
James Alexander Fry, Orlando, FL (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A reflecting prism has an input surface, an output surface, a first reflection surface, a second reflection surface, and a third reflection surface. The reflecting prism has a first refractive index, such that the first, second, and third reflection surfaces interface with an external medium having a second refractive index less than the first refractive index. This interface defines a critical angle for total internal reflection for each of the first, second, and third reflection surfaces. Light is received at the input surface of a prism body of a reflecting prism and is transmitted along a first internal optical path segment of an optical path to the first reflection surface. The angle of incidence of the first internal optical path segment with respect to the first reflection surface is greater than the critical angle for the first reflection surface, thereby causing the light to be reflected via total internal reflection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile