Laddawn, Inc. May 2018 - Apr 2019
Maintenance Technician
Gorton's May 2018 - Apr 2019
Maintenance Technician
West Rock Oct 2017 - May 2018
Maintenance Technician
Newcorr Packaging Jan 2014 - Oct 2017
Maintenance Technician
Radant Technologies, Inc. Jan 2012 - Dec 2013
Mechanical Assembler
James T. Daly - Mansfield MA Andrew Bodkin - Needham MA Michael J. Groden - Auburn NH Edward A. Johnson - Bedford MA
International Classification:
G01N 2100
US Classification:
25033902
Abstract:
A spectrometer system comprises (i) a slab waveguide characterized as an index of refraction higher than a surrounding medium, and having front surface and a rear surface opposite thereto, the front surface including a input portion for accepting optical radiation, a diffractor portion and an exit portion, (ii) a diffraction grating disposed on said diffractor portion of said front surface, (iii) a detector array aligned adjacent to the exit portion, and (iv) a mirror coated on the rear surface of the waveguide. Radiation transmitted within the waveguide from the input portion is reflected and collimated by the mirror to the granting. Light diffracted from the grating is dispersed to the mirror and reflected toward and through the exit portion and onto the array.
Michael Groden, 44,of Needham; Keith Curtis, 38, of Athol, and Katherine Isaacs, 33, of Weymouth were apprehended around 1 p.m. Monday and charged in connection with a drug investigation in the downtown area, police said.