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:
Jan. 08, 1985
Filed:
Jan. 07, 1982
Applicant:
Inventors:
Nicholas Bottka, Ridgecrest, CA (US);
Howard Lessoff, Potomac, MD (US);
Marian E Hills, Ridgecrest, CA (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350356 ; 350166 ; 350164 ; 350316 ; 372 26 ; 372 43 ;
Abstract
A semiconductor multi-color filter spectrum analyzer is created by multiple pitaxial layers of varying composition. A DC sweep voltage is used to successively deplete the epitaxial layers. An AC voltage is used to modulate the absorption edge of the individual layers. A modification of this device concept is a variable bandwidth detector in which the spectral bandwidth is a function of the applied DC voltage.