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:
May. 12, 1992
Filed:
Nov. 28, 1989
Michael M Carrabba, Franklin, MA (US);
R David Rauh, Newton, MA (US);
EIC Laboratories, Inc., Norwood, MA (US);
Abstract
A fiber-optic probe which is useful for measuring Raman spectra of samples remote from the light source and detector. The probe head contains optical components which selectively remove unwanted fluorescence and Raman scattering arising from the interaction between the Raman excitation source radiation and the input optical fiber. The optics also filter the Raman excitation source into a return optical fiber leading to a spectrometer or detector. In one embodiment, the disposition of optical components provides a compact probe geometry with parallel input and output fibers at one end and a sampling port at the other end. An encasement for the optics is also disclosed, for sealing the components against the environment, and for coupling the probe to specialized sampling attachments, such as for conducting Surface Enhanced Raman Spectroscopy.