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:
Nov. 30, 2004
Filed:
Sep. 11, 2002
James Kevan Guy, Mesa, AZ (US);
The Boeing Company, Chicago, IL (US);
Abstract
A beam splitter wave guide apparatus and method for enabling the selection of one of a plurality of distinct spectra of an optical input signal and for enabling an intensity of a resulting output signal to be adjusted. The apparatus comprises a cylindrical optical element having an input end and an output end. The input end includes a pair of spaced apart surfaces that each include a suitable filter formed thereon. A first one of the filters passes a first spectrum of light and reflects all other light outside the first spectrum. The second filter passes a second spectrum of light but reflects all other light outside of the second spectrum. Rotating the cylindrical optical element allows either the first or second spectrum to be selected such that an optical output signal is generated having the desired spectrum. Controlled rotational movement of the cylindrical optical element further allows the intensity of the resulting optical output signal to be varied as needed.