Scanning device, image display device, and method for controlling image display device

Abstract

A scanning device that scans a beam emitted from a light source, includes: a beam condensing unit that condenses the beam emitted from the light source; a beam diverging unit that is arranged on an output side of the beam condensing unit, and diverges the beam condensed by the beam condensing unit; a first scanning unit that is arranged between the beam condensing unit and the beam diverging unit, and scans the beam condensed by the beam condensing unit; and a moving unit that moves at least one of the beam condensing unit and the beam diverging unit along respective optical axis directions thereof, in accordance with a scan angle of the first scanning unit.

Dependencies are inferred from the claim text.