This feature allows interrupt the projection without having to turn off the projector, the screen will go black and returns to the projection for all their luminosity instantly when it was interrupted.

A mechanical lens shutter minimizes annoying light leakage when the projector is on standby or temporarily not in use, such as during a meeting. This is a feature not generally offered in projectors of this class. The effect of dust has been minimized by completely sealing the optical block. The dust-free design helps ensure that projector will continue to deliver crisp, sharp, high-resolution images over an extended service life. Also acts as a weather protection.