A representative embodiment of the invention provides a compact image
projector having a light source coupled to a spatial light modulator
(SLM). The light source has a substantially planar structure. The overall
size of the SLM is dominated by its length and/or width. The projector
has an optical arrangement that enables the SLM to be oriented so that
the SLM's dominant dimensions are parallel to the plane of the light
source. Due to this relative orientation of the SLM and light source, one
of the dimensions of the image projector can be smaller than 12 mm, which
advantageously enables incorporation of the projector into a hand-held
electronic device, such as a cell phone, PDA, or media player.