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:
Jul. 26, 1977
Filed:
Apr. 01, 1975
John S Wollam, Acton, MA (US);
Other;
Abstract
A reflective window for providing an indirect optical path to an object including an array having a plurality of reflective elements, each being disposed at an acute angle to the plane of the window and parallel to each of the other reflective elements; each of the reflective elements having a length, along its dimension which intersects with the plane of the window, capable of producing on the window a projection which is at least as great as the distance between each pair of the reflective elements, each of the reflective elements having first and second reflective surfaces for receiving radiation on its first reflective surface and reflecting it to the second reflective surface of one adjacent reflective element and for receiving on and reflecting from its second surface radiation from the first reflective surface of another adjacent reflective element.