FIELD: images forming devices. SUBSTANCE: invention relates to a projection screens provided with means for reducing speckles. Method for reducing speckle on a projection screen comprises vibrating a projection screen within a predetermined frequency spectrum having power which is broadly dispersed, mitigating speckle on the projection screen to …
FIELD: physics. SUBSTANCE: invention relates to screens equipped with means of reducing speckles. Speckle attenuation system comprises at least one main vibration element configured to be attached to the projection screen, wherein said at least one main vibration element is configured to communicate the projection screen with vibration in a …