Light-field projector generating optically corrected virtual images and method of generating corrected virtual images by using the light field projector

A method for generating corrected virtual images by using a light field projector comprising

• a SLM;
• a light source including a plurality of point light, each point light being configured to emit an incident light field illuminating the SLM;
• the SLM being configured to display a reference SLM image pattern in an SLM plane, the reference SLM image pattern being configured to modulate the incident light field and generate a modulated light field in accordance with the SLM image pattern;
• and
• a projection optic configured to project the modulated light field along a reference optical axis, and project a virtual image along the reference optical axis;
• wherein the SLM is further configured to display a corrected SLM image pattern;
• wherein the corrected SLM image pattern corresponds to the reference SLM image pattern being shifted in the SLM plane;
• and
• wherein the corrected SLM image pattern is configured such that the projection optic projects the virtual image along an apparent projection axis that differs from the reference optical axis, such that the virtual image simulates at least an optical correction;
• the method comprising:
• computing at least one virtual image by using a virtual pinhole camera model imaging a virtual 3D scene and displaying a reference SLM image pattern in accordance with the computed virtual image;
• generating at least one optical correction parameter;
• modifying the reference SLM image pattern as a function of said at least one optical correction parameter to obtain a corrected SLM image pattern;
• sequentially illuminating the SLM by the incident light fields such as to generate at least one modulated light field configured to form said at least one virtual image;
• and
• sequentially projecting said at least one modulated light field to project said at least one virtual image simulating said at least one optical correction.