Patent ID: 11879777
Assignee: THE TEXAS A&M UNIVERSITY SYSTEM
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A handheld Raman spectrometer device comprising:
a laser to emit an excitation beam towards a sample location, the excitation beam defining a first optical axis;
collection optics defining a second optical axis intersecting the first optical axis at the sample location, wherein the second optical axis is perpendicular to the first optical axis, the collection optics to capture Raman-scattered light from a sample placed at the sample location;
a diffraction grating positioned on the second optical axis to diffract the collected light along a third optical axis directly towards a camera of a cell phone, the camera comprising an objective lens and an image sensor; and
a housing containing the laser, collection optics, and diffraction grating.