A device and method for tracking optics for a spectrometer, is disclosed. A plurality of tracking mirrors track a position of a light source relative to the tracking optics, receive light from the light source, and emit reflected light. A reflecting diffuser is configured to receive reflected light from the mirrors and diffuse and reflect the received light toward the spectrometer. A camera is configured to record an image of the light source on the diffuser surface, and a tracking mechanism is configured to adjust the position of one or more of the tracking mirrors according to the image of the light source in the recorded image.

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