Patent ID: 9273997
Filing Date: 2016-03-01
CPC Classification: G01J,Y10T

Claim Text:
1. A spectrometer, comprising: a waveguide module, the waveguide module having a first reflective surface, a second reflective opposite to the first reflective surface, and a light channel located between the first reflective surface and the second reflective surface; a diffractive component, the diffractive component having a diffractive surface with a plurality of strip-shaped diffractive structures, wherein a sharpness of a profile of the strip-shaped diffractive structures at a first side of the diffractive surface is greater than a sharpness of the profile of the strip-shaped diffractive structures at a second side of the diffractive surface, wherein the first side of the diffractive surface is located between the first reflective surface and the second reflective surface, with the first side of the diffractive surface spaced apart from both the first and the second reflective surfaces, when viewed along a direction generally perpendicular to the second reflective surface; and a light sensor, the light sensor receiving diffracted light after light transmitted in the light channel is diffracted into the diffracted light by the diffractive surface.