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:
Mar. 25, 2003
Filed:
Mar. 08, 2000
Applicant:
Inventors:
Larry L. Moresco, San Carlos, CA (US);
Vivek Mansingh, Saratoga, CA (US);
Teruo Murase, Yokohama, JP;
Assignee:
Fujitsu Limited, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/12 ; G01J 5/20 ;
U.S. Cl.
CPC ...
G02B 6/12 ; G01J 5/20 ;
Abstract
A signal coupler is comprised of a transmitting section and a receiving section. The receiving section includes a polymer pyroelectric film element having a greater than 1% by volume of a high thermal diffusivity material, such as aluminum nitride, to improve the thermal diffusivity of the polymer film. A preferred embodiment of the transmitting section includes a thin film resistive heater to generate thermal pulses which are coupled to the receiving section by a thin film of thermal grease disposed between the receiving section and the transmitting section.