Abstract: An example apparatus may include a display and an optical configuration configured to provide an image of a display, for example, in a head-mounted device. An example apparatus may include a display, a first lens assembly including a lens and a reflector, and a second lens assembly including a second lens and a second reflector. In some examples, the first lens assembly has a front surface configured to receive display light from the display when the display is energized. The first lens assembly may include a Fresnel surface (e.g., a Fresnel surface including facets and steps) that may, for example, be formed in a lens surface, or in the surface of a substrate supported by a lens surface. Other devices, methods, systems and computer-readable media are also disclosed.

Abstract: A variable aperture lens and methods of forming such lenses are disclosed. More particularly, embodiments of the variable aperture lens include an electro-optic aperture sandwiched between a front lens and a rear lens along an optical axis. The front lens or the rear lens may include multiple lens layers having different optical properties to provide for a low z-height, optically aligned, variable aperture lens.

Abstract: A variable aperture lens and methods of forming such lenses are disclosed. More particularly, embodiments of the variable aperture lens include an electro-optic aperture sandwiched between a front lens and a rear lens along an optical axis. The front lens or the rear lens may include multiple lens layers having different optical properties to provide for a low z-height, optically aligned, variable aperture lens.