Patent Document ID: 20120140131
Application ID: 13309535
Patent Flag: 0

Claim One:
1. A method for producing an actual 4D light field that approximates a target 4D light field, wherein a pair of spatial light modulators is backlit by an incoherent light source, the pair comprises a rear modulator that displays a rear mask and front modulator that displays a front mask, a contiguous area in each of the rear and front masks, respectively, corresponds to a region of the target 4D light field that is adjacent to a depth discontinuity, in that area, the target 4D light field has an angular gradient, in that area, a parallax barrier is displayed, which parallax barrier comprises a set of more than ten slits, a majority of the slits having an orientation within 15 degrees of perpendicular to the angular gradient, and the front and rear masks produce the actual 4D light field, which actual 4D light field comprises a multi-view automultiscopic display with full motion parallax.