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:
Oct. 17, 1989
Filed:
May. 27, 1988
Leslie T Clarke, Merseyside, GB;
Pilkington PLC, Merseyside, GB;
Abstract
This invention relates to translucent electromagnetic shielding panels, that is translucent panels for shielding against electromagnetic interference or eavesdropping, which incorporate silver coatings to attenuate electromagnetic radiation. Such panels may be used, for example, for glazing the windows of buildings, serving as viewing panels in enclosures for housing electronic equipment, for instance, in electronic apparatus rackscubicles, and serving as viewing windows in front of electronic apparatus such as v.d.u.'s (visual display units). The panel of the invention includes at least one pane of glass or plastics and two silver layers each up to 30 nm thick whereby the panel has a lower reflection for visible light than a panel having a single thicker layer of silver having an equivalent electromagnetic shielding effect. The panel may be laminated having an interlayer and has electrical connection means for providing an electrical conductive path from the silver coatings to earth.