Patent ID: 9435689
Filing Date: 2016-09-06
CPC Classification: G01J,Y10T

Claim Text:
1. A hyperspectral imaging system for imaging a remote object, the hyperspectral imaging system comprising: a housing; fore optics, attached to the housing, where the fore optics are configured to receive a beam from the remote object; a detector attached to the housing; and a monolithic Offner spectrometer positioned inside the housing, the monolithic Offner spectrometer comprising: where the monolithic Offner spectrometer is configured according to: where: dx/dλ is a linear dispersion in a range of 4-200 mm/μm; f is a focal length in a range of 10-300 mm which is measured from the diffraction grating to the focal plane detector; d is the period of the linear gratings in a range of 3-1000 μm; n is an order of diffraction in a range of 1-10; φ is an Ebert angle in a range of 1-30° and is measured from incident to normal; θ is a diffracted angle in a range of 0.2-45° and is measured from normal to diffracted order.