The Mid-Infrared Instrument (MIRI) Medium Resolution Spectrometer for JWST Martyn Wells MIRI EC & UKATC. Spectrometer Pre Optics UKATC. Spectrometer Main Optics Netherlands. Deck (Leicester). Spectrometer Focal Plane Module (USA). Carbon Fibre Hexapod (Denmark). Imager (France).
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Spectrometer Main Optics
Spectrometer Focal Plane Module (USA)
Carbon Fibre Hexapod (Denmark)
Input Optics and Calibration Unit (Belgium)
Here are the flattened envelopes of the sliced and stacked sky images, heading off to the spectrometer collimator mirrors in the Spectrometer Main Optics (SMO)
The position of the Channel 2 collimator mirror
Here, the beam from the Channel 2 collimator is shown, heading back to one of Channel 2’s three diffraction gratings.
The position of a Channel 2 grating.
...which sends it to the final, camera mirror, which is a common optical element for Channels 1 and 2 (as is the fold mirror)
Here comes the beam from the Channel 1 IFU, collimated and sent to one of Channel 1’s 3 gratings...
...and sent via this fold mirror to share the last two mirrors on its way to the FPM with the spectrum from Channel 2.