The Michelle mid-infrared spectrometer and imager

Michelle is an all-reflective long-slit spectrometer and imager which is being built at the Royal Observatory Edinburgh for operation on both the UKIRT 4 metre and the Gemini 8 metre telescopes. The project is now well advanced with major optical and mechanical components in manufacture. In addition to summarising the optical specification and opto-mechanical design of the spectrometer, we present the results of optical testing of the spectrometer collimator.