A one-dimensional image is formed by reflecting the light from a one-dimensional
display device having a plurality of light emitting sections or light emitting
sections disposed in one direction by a projection optical system three times or
more. Then, a two-dimensional image is obtained by optically scanning the one-dimensional
image by a light deflection means in a surface including a direction perpendicular
to the disposing direction of the light emitting sections or the light emitting
sections in the one-dimensional display device. A magnification projecting system
is provided to project the two-dimensional image by magnifying it as it is as an
intermediate image. A requirement for high resolution can be coped with by employing
the one-dimensional display device as well as a small and less expensive light
scanning apparatus and two-dimensional image forming apparatus can be realized thereby.
