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. 02, 2002
Filed:
May. 15, 2000
Maurice Whelan, Angera, IT;
Robert P. Kenny, Gavirate, IT;
John T. Sheridan, Dublin, IE;
Alfredo C. Lucia, Osmate, IT;
European Atomic Energy Community (Euratom), Luxembourg, LU;
Abstract
A luminous intensity sensor element having a flat disk-shaped element ( ) made of material with a high thermal expansion coefficient and of low thermal conductivity, and in turn having, on opposite faces ( ), an optically absorbent layer ( ) and a reflecting layer ( ). On receiving excitation radiation (R), the optically absorbent layer ( ) is heated and transmits heat to the flat disk-shaped ( ), which in turn is heated internally in spatially nonuniform manner and is deformed together with the superimposed reflecting layer ( ). The reflecting layer ( ) receives an incident reference layer beam (S) to generate a reflected light beam having optical characteristics (&Dgr;&phgr;) depending on the aforementioned deformation (&Dgr;d) and varying in response to the excitation radiation.