Multi-band imaging spectrometer

摘要

One embodiment disclosed is a spectrometry system for collecting spatially and temporally co-registered hyperspectral data covering multiple spectral bands. The spectrometry system includes a single entrance slit for receiving light and a plurality of disperser elements operating over a plurality of distinct spectral bands to disperse the received light into constituent spectral channels. The system also includes a plurality of collimating and imaging optic elements that receive and re-image the dispersed light. The system also includes at least two focal plane arrays affixed in a common plane and configured to receive the re-imaged dispersed light, each of the at least two focal plane arrays being dedicated to sensing a distinct spectral band of the dispersed light.

主权项

1. A spectrometry system for collecting spatially and temporally co-registered hyperspectral data covering multiple spectral bands, the spectrometry system comprising:
a) a single entrance slit for receiving light; b) a plurality of disperser elements operating over a plurality of distinct spectral bands to disperse the received light into constituent spectral channels; c) a plurality of collimating and imaging optic elements that receive and re-image the dispersed light; d) at least two focal plane arrays affixed in a common plane and configured to receive the re-imaged dispersed light, each of the at least two focal plane arrays being dedicated to sensing a distinct spectral band of the dispersed light; and e) a common clock for synchronizing the integration timing between the at least two focal plane arrays, thereby ensuring that each light-sensing pixel of the at least two focal plane arrays is temporally co-registered.