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:
Dec. 11, 1990
Filed:
Jul. 27, 1989
Floyd E Woodard, Olivette, MO (US);
Monsanto Company, St. Louis, MO (US);
Abstract
An optical element for a motor vehicle windshield comprises, in combination, an interference filter having one or more light-reflecting metal layers and one or more reflection-suppressing layers for coacting with the one or more metal layers to minimize reflection and enhance transmission in the visible region, a gradient band continuation of the interference filter above the direct line of forward vision through a windshield when disposed in a motor vehicle for reflective rejection of infra-red solar energy, such band including a light-reflecting metal layer gradually increasing in thickness toward a lateral edge of the band, a transparent substrate supporting such filter and gradient band and plural bus bars substantially parallel to the lateral edge of the gradient band in electrical contact with the metal layers of the interference filter and the gradient band continuation.