A two-dimensional scanning apparatus has light source means, deflecting
means for deflecting a beam emitted from the light source means in a
two-dimensional direction, and scanning optical means for directing the
beam deflected by the deflecting means onto a surface to be scanned. The
scanning optical means has one or more scanning optical element, and one
or more surfaces of one or more of the aforementioned one or more
scanning optical elements are anamorphic surfaces, and the anamorphic
surfaces on the aforementioned one or more surfaces are anamorphic
surfaces monotonously changing in a radius of curvature of which the
absolute value of the radius of curvature in a first one-dimensional
direction continuously decreases from one side toward the other side
along a second one-dimensional direction orthogonal to the first
one-dimensional direction. Thus, there can be supplied a two-dimensional
scanning apparatus which can well correct TV distortion caused by the
two-dimensional deflection of the beam by the deflecting means and
trapezoid distortion caused by an image being obliquely projected onto a
surface to be scanned, and a scanning type image displaying apparatus
using the same.