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:
Jun. 06, 2017
Filed:
Dec. 28, 2015
Viavi Solutions Inc., Milpitas, CA (US);
Curtis R. Hruska, Cloverdale, CA (US);
Charles A. Hulse, Sebastopol, CA (US);
Brett J. Bryars, Santa Rosa, CA (US);
Marc K. Von Gunten, Novato, CA (US);
Christopher G. Pederson, Santa Rosa, CA (US);
Nada A. O'Brien, Santa Rosa, CA (US);
Jerry Zieba, Santa Rosa, CA (US);
Benjamin F. Catching, Santa Rosa, CA (US);
Viavi Solutions Inc., Milpitas, CA (US);
Abstract
A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.