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. 07, 2006
Filed:
Jun. 22, 2004
Applicants:
Radu Ispasoiu, Los Gatos, CA (US);
Thomas R. Gockel, Modesto, CA (US);
James S. Vickers, San Jose, CA (US);
Inventors:
Radu Ispasoiu, Los Gatos, CA (US);
Thomas R. Gockel, Modesto, CA (US);
James S. Vickers, San Jose, CA (US);
Assignee:
Credence Systems Corporation, Milpitas, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 40/14 (2006.01); H01J 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An integrated housing for a lens and a photodetector, which is being cooled to low temperatures to enable the detector to detect faint emission of photons. An enclosure is provided to which a lens is affixed from one side using a retaining ring, and a photodetector is affixed from the opposite side. The enclosure is affixed to a TE cooler. The enclosure and the retaining ring are made from materials having similar thermal expansion coefficients.