Incorporates touch sensors on the control panel, a first in the industry. A dust-proof design, with fewer gaps, including hermetically sealed lenses and cover-protected zooming/focusing rings, etc., has been achieved. These are portable projectors, and are designed to prevent dust from adhering to optical components. As a result, their total brightness can be maintained three times longer than that of our conventional models. The simple form, vertically symmetrical design, and silver color have been adopted to harmonize the projectors with installation locations such as offices or classrooms.