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. 01, 1990
Filed:
Nov. 22, 1988
A.R.M.I.N.E.S., Paris, FR;
Abstract
This invention relates to an apparatus emitting infrared radiation which comprises a plane source of infrared rays and a reflector. In order to avoid the problem due to captive rays and to multiple reflections, the cross section of each half-reflector located on one side of the plane of symmetry has the form of an arc of ellipse whose two foci are respectively constituted by the first end of the plane source and the first end of the target which are both located on the other side of the plane of symmetry, this arc of ellipse extending between the second end of the plane source and the point of intersection of the ellipse with the direct ray going from the first end of the plane source to the second end of the target.