title: Design of an off-axis see-through display based on a dynamic phase correction approach.
abstract: The design and the analysis of an off-axis (50°) diffractive imaging optical system is presented in this paper. A 10°x15° field of view is considered. The optical system is composed of two diffractive optical elements. A static diffractive optical element having a frozen phase transfer function is used to perform a virtual point in the considered field of view. A dynamic diffractive optical element having an adapted calculated phase transfer function is used to compensate for aberrations of the static element. Using a sequential creation of virtual image points and considering human eye characteristics, it is shown that a nine points virtual image can be obtained with current technology. Moreover, it is presented that aberrations can be compensated whatever the position of the virtual point in the 10°x15° field of view. Finally, using rigorous coupled wave analysis, it is shown that an average diffraction efficiency of 79% can be reached across the considered field of view with a standard deviation of nearly 5%.
authors: Université de Strasbourg, INESS, ENSPS, Boulevard S. Brant, F −67412 Illkirch Cedex, France. marc.beuret@etu.unistra.fr
authors: Marc
authors: M
authors: Beuret
authors: Patrice
authors: P
authors: Twardowski
authors: Joël
authors: J
authors: Fontaine
mesh_terms: D003626:Data Display; D004867:Equipment Design; D006801:Humans; D007909:Lenses; D008029:Lighting / Q000295:instrumentation*; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D014584:User-Computer Interface