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. 24, 2011
Filed:
Feb. 17, 2006
Bernard E. H. Laluvein, Eastcote, GB;
Timothy A. James, Harrow, GB;
Bernard E. H. Laluvein, Eastcote, GB;
Timothy A. James, Harrow, GB;
Thorn Security Limited, Sunbury-on-Thames, Middlesex, GB;
Abstract
A detector comprises a housing () having a window (), a measuring and processing unit (), a source () of electromagnetic radiation, a plurality of sensors (), and a reflector (). The measuring and processing unit (), the electromagnetic radiation source () and the sensors () are mounted within the housing (). The reflector () is mounted outside the housing (). The reflector () is positioned to reflect electromagnetic radiation passing through the window () from the electromagnetic radiation source () onto the sensors () via the window. The sensors () are operatively associated with the measuring and processing unit () to provide that unit with an input indicative of the level of electromagnetic radiation reaching the sensors.