Lightguide based holographic display

A display comprising:

• a light source for providing a collimated light beam;
• a tiltable reflector operably coupled to the light source for receiving and variably redirecting the collimated light beam;
• a replicating lightguide operably coupled to the tiltable reflector for receiving the collimated light beam and providing multiple laterally offset parallel portions of the collimated light beam;
• a spatial light modulator (SLM) operably coupled to the replicating lightguide for receiving and spatially modulating the portions of the collimated light beam in at least one of amplitude or phase, forming an image light beam;
• and
• a focusing element operably coupled to the SLM for focusing the image light beam at an exit pupil of the display, so as to form an image for direct observation by a user.

A display comprising:

• an illuminator for providing a collimated light beam;
• a replicating lightguide operably coupled to the illuminator for receiving the collimated light beam and providing multiple laterally offset parallel portions of the collimated light beam;
• a spatial light modulator (SLM) operably coupled to the replicating lightguide for receiving and spatially modulating the portions of the collimated light beam in at least one of amplitude or phase;
• a redirecting element in an optical path downstream of the SLM for variably redirecting the image light beam;
• and
• a focusing element in the optical path downstream of the SLM for focusing the image light beam at an exit pupil of the display to form an image for direct observation by a user.