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. 16, 2021
Filed:
Mar. 12, 2019
Daryoosh Vakhshoori, Cambridge, MA (US);
Romain Blanchard, Lexington, MA (US);
Peili Chen, Andover, MA (US);
Masud Azimi, Belmont, MA (US);
Tobias Mansuripur, Cambridge, MA (US);
Kalyani Krishnamurthy, Lincoln, MA (US);
Arran M. Bibby, Savannah, GA (US);
Fred R. Huettig, Iii, Sudbury, MA (US);
Gokhan Ulu, Newton, MA (US);
Greg Vander Rhodes, Lexington, MA (US);
Daryoosh Vakhshoori, Cambridge, MA (US);
Romain Blanchard, Lexington, MA (US);
Peili Chen, Andover, MA (US);
Masud Azimi, Belmont, MA (US);
Tobias Mansuripur, Cambridge, MA (US);
Kalyani Krishnamurthy, Lincoln, MA (US);
Arran M. Bibby, Savannah, GA (US);
Fred R. Huettig, III, Sudbury, MA (US);
Gokhan Ulu, Newton, MA (US);
Greg Vander Rhodes, Lexington, MA (US);
Pendar Technologies, LLC, Cambridge, MA (US);
Abstract
A compact, portable Raman spectrometer makes fast, sensitive standoff measurements at little to no risk of eye injury or igniting the materials being probed. This spectrometer uses differential Raman spectroscopy and ambient light measurements to measure point-and-shoot Raman signatures of dark or highly fluorescent materials at distances of 1 cm to 10 m or more. It scans the Raman pump beam(s) across the sample to reduce the risk of unduly heating or igniting the sample. Beam scanning also transforms the spectrometer into an instrument with a lower effective safety classification, reducing the risk of eye injury. The spectrometer's long standoff range automatic focusing make it easier to identify chemicals through clear and translucent obstacles, such as flow tubes, windows, and containers. And the spectrometer's components are light and small enough to be packaged in a handheld housing or housing suitable for a small robot to carry.