Patent ID: 8666447

Claim:
An apparatus, comprising: a portable electronic device configured to conduct a two-way voice conversation, comprising: a power source comprising a fuel cell; and an image projection system configured to project an image away from the portable electronic device, comprising: a mechanism coupled to a light source and configured to drive the light source; a first set of optics configured to process light from the light source, wherein the first set of optics comprises at least one optical element which is light piping, light channeling, refractive, reflective, diffractive, or a combination thereof; a second set of optics configured to project an image, wherein the second set of optics comprises at least one optical element which is light piping, light channeling, refractive, reflective, diffractive, or a combination thereof; and an image projection control circuit for the image projection system configured to be at least in part responsive to an output from an orientation sensor, wherein the image projection control circuit is configured to control, at least in part, the image projection system.