Stereoscopic image display apparatus

A stereoscopic image display apparatus, comprising:

• a first projection element group including a plurality of first projection elements operable to project first light fluxes along and about respective ones of first light flux axes in a first direction;
• a second projection element group including a plurality of second projection elements operable to project second light fluxes along and about respective ones of second light flux axes in a second direction which is different from the first direction and in which respective ones of the second light fluxes are directed to respective ones of the first light fluxes;
• and
• a reflecting optical system operable to reflect the second light fluxes in the first direction,
• wherein, prior to the reflecting optical system reflecting the second light fluxes, respective ones of the first light flux axes and respective ones of the second light flux axes are oriented at least generally perpendicularly to one another and, after the reflecting optical system reflects the second light fluxes, respective ones of the first light flux axes and respective ones of the second light flux axes extend at least generally parallel to one another and
• wherein each one of the plurality of first projection elements and the plurality of second projection elements includes a projection lens assembly, a four-sided prism having a first side, a second side, a third side and a fourth side, a red light-emitting diode assembly directing red light onto the first side and into the prism, a blue light-emitting diode assembly directing blue light onto the second side and into the prism and a green light-emitting diode assembly directing green light onto the third side and into the prism so that light emitted by the red, blue and green light-emitting diode assemblies is projected from the fourth side of the prism and through the projection lens assembly.