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:
Feb. 14, 2006
Filed:
May. 22, 2003
Roger S. Sillmon, Troutville, VA (US);
Arlynn W. Smith, Blue Ridge, VA (US);
Rudy G. Benz, Daleville, VA (US);
Roger S. Sillmon, Troutville, VA (US);
Arlynn W. Smith, Blue Ridge, VA (US);
Rudy G. Benz, Daleville, VA (US);
ITT Manufacturing Enterprises Inc., Wilmington, DE (US);
Abstract
A photocathode includes a first layer having a first energy band gap for providing absorption of light of wavelengths shorter than or equal to a first wavelength, a second layer having a second energy band gap for providing transmission of light of wavelengths longer than the first wavelength, and a third layer having a third energy band gap for providing absorption of light of wavelengths between the first wavelength and a second wavelength. The first wavelength is shorter than the second wavelength. The first, second and third layers are positioned in sequence between input and output sides of the photocathode.