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One of OSIRIS' tunable filters, which is 20 cm in diameter and 10 cm tall. The black metal parts contain the piece electric devices that will control the distance separating the laminates and their parallel alignment. The condensors that will be used to precision manage the distance separating the laminates can also be seen. The system is so stable that any adjustment applied to the filters (wavelength and bandwidth) can be automatically maintained for days.
IMAGE COURTESY OF: The OSIRIS Project Team