(SSVF-SS) Solar Simulator Variable Focus

Every time the illumination target size of a Fully Reflective Solar Simulator changes, the reflective mirrors inside the solar simulator that direct the light from the source to the target need to be refocused. Although this can be performed manually, the procedure is a hassle should the user need to change the target spot size frequently. The solar simulator would need to be shut down and have each internal mirror re-adjusted to support a different focal spot size. With this variable focus option re-adjusting the internal mirrors of the solar simulator is performed through a single knob without having to shutdown the solar simulator. This feature can also be used to vary illumination intensity by spreading the light over a larger area or concentrating the light into a smaller area.