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.:

US 6979825 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 27, 2005

Filed:

Apr. 11, 2003
Applicant:

Kwong-kit Choi, Brookeville, MD (US);

Inventor:

Kwong-Kit Choi, Brookeville, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L027/144 ;
U.S. Cl.
CPC ...
Abstract

A plurality of quantum-grid infrared photodetector (QGIP) elements are concatenated to form a spectrometer. Each of the QGIP elements is adapted to detect light at a particular range of wavelengths. Additionally, each QGIP element is adapted to produce a photocurrent that is proportional to the amount of light detected at its respective range of wavelengths. This type of configuration permits spectrometry within a spectrum that spans the aggregate ranges of wavelengths of each QGIP element.


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