High End Systems / Lightwave Research
Moving Mirror fixture.
From the HireWL website:
The Trackspot colour wheel features eight richly-saturated dichroic colours (plus white) and a colour corrector. The 10-position gobo wheel includes two multi-coloured dichroic patterns and a replaceable custom gobo position. Trackspot has an ultra-fast, smooth pan and tilt capability as well as optical sensors that eliminate color or gobo positioning errors. Control options include standard analog, Lightwave Research (LWR) protocol, and DMX 512 protocol.
Lightparts - Trackspot Spares
Trackspot User Manual v4.1 (September 1999)
Trackspot Datasheet (February 2001)