Head Mounted Display Device with Double Faceted Optics

A head mounted display device, comprising:

• a light engine configured to generate light corresponding to image data;
• a housing having an inwardly facing side and an outwardly facing side, the inwardly facing side configured to be engaged by a head of a user to position the housing relative to an eye of the user;
• and,
• an optical assembly and the light engine positioned by the housing transverse to an axis extending through the eye, the optical assembly comprising:
• a first sub-assembly positioned proximate to the light engine and having a surface profile facing the light engine that has a low rate of curvature proximate to the axis at a center of the first sub-assembly and an increasing rate of curvature toward a periphery of the first sub-assembly;
• and,
• a second sub-assembly positioned distal to the light engine and comprising multiple coplanar convex lenses configured to collimate at least some of the light toward an eye box positioned proximate to the inwardly facing side.