A near-eye display system includes a display panel to present image frames to the eyes of a user for viewing. The system also includes a beam steering assembly facing the display panel that is configurable to displace a light beam incident on the beam steering assembly, thereby laterally shifting light relative to an optical path of the light beam incident on the beam steering assembly. The beam steering assembly includes a birefringent plate configurable to replicate a light ray incident on the beam steering assembly such that the replicated light ray is laterally shifted relative to an optical path of the light ray incident on the beam steering assembly.

A wide-field imaging lens and an optical image capturing device for an electronic mobile device are provided. In the wide-field imaging lens, an aperture stop, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element may be sequentially located and optically coupled. A surface of each of the first lens element to the fifth lens element may be an aspheric surface.

A multilayer grating is a diffraction grating that includes a plurality of layers. The plurality of layers arranged to form a 2-dimensional grating, the layers including at least a first patterned layer and a second patterned layer. The first patterned layer includes a plurality of different materials that are arranged in a first pattern such that the first patterned layer has a first index profile. The second patterned layer includes a plurality of different materials that are arranged in a second pattern such that the second patterned layer has a second index profile that is inverted relative to the first index profile. Ambient light incident on the first patterned layer and the second patterned layer creates a first diffracted ray and a second diffracted ray, respectively, and the first diffracted ray and the second diffracted ray destructively interfere with each other based in part on the inverted index profile.

A projection augmented reality headset (ARHS), providing a wide field of view and an optimized eye relief. THE ARHS includes a projection having an imager and imaging optics which provides image light to a partially reflecting combiner. Further, the partially reflecting combiner configured to receive the image light, and is configured to re-direct the image light towards an eye box, with an eye relief offset between the partially reflecting combiner and the eyebox. As such, the imaging optics include a combination of lens elements having symmetrical or free-form lens surfaces that are tilted and decentered to expand a field of view.

A projection augmented reality headset (ARHS), providing a wide field-of-view and an optimized eye relief. THE ARHS includes a projection having an imager and imaging optics which provides image light to a partially reflecting combiner. Further, the partially reflecting combiner configured to receive the image light, and is configured to re-direct the image light towards an eyebox, with an eye relief offset between the partially reflecting combiner and the eyebox. As such, the imaging optics include a combination of lens elements having symmetrical or free-form lens surfaces that are tilted and decentered to expand a field-of-view.

Provided is a meta-lens including a first region including a plurality of first nanostructures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of first nanostructures are provided based on a first rule, and a plurality of second regions surrounding the first region, each of the plurality of second regions including a plurality of second nanostructures that are two-dimensionally provided in a circumferential direction and a radial direction, wherein the plurality of second nanostructures are provided in each of the plurality of second regions based on a plurality of second rules, respectively, that are different from the first rule.

A lens for headlamps of vehicles provided with a diffraction grating on a surface, wherein a phase function of the diffraction grating is represented by $\varphi \left(r\right)=\underset{i=1}{\overset{N}{.Math.}}{\beta }_{2i}{r}^{2i}$
where r represents distance from the central axis of the lens, and the relationship
|β.sub.2|.Math.(0.3R).sup.2<|β.sub.4|.Math.(0.3R).sup.4
is satisfied where R represents effective radius of the lens, and wherein a second derivative of the phase function has at least one extreme value and at least one point of inflection where r is greater than 30% of R, a difference in spherical aberration between the maximum value and the minimum value at any value of r in
0≤r≤R
is equal to or less than the longitudinal chromatic aberration for visible light, the diffraction grating is at least partially on the surface where r is greater than 30%, and the relationship $1<.Math.\frac{\varphi \left(R\right)}{R^2}.Math.<10$
is satisfied.

An optical device includes a lightguide having a first pair of external surfaces parallel to each other, and at least two sets of facets. Each of the sets including a plurality of partially reflecting facets parallel to each other, and between the first pair of external surfaces. In each of the sets of facets, the respective facets are at an oblique angle relative to the first pair of external surfaces, and at a non-parallel angle relative to another of the sets of facets. The optical device is particularly suited for optical aperture expansion.

A projection augmented reality headset (ARHS), providing a wide field-of-view and an optimized eye relief. THE ARHS includes a projection having an imager and imaging optics which provides image light to a partially reflecting combiner. Further, the partially reflecting combiner configured to receive the image light, and is configured to re-direct the image light towards an eyebox, with an eye relief offset between the partially reflecting combiner and the eyebox. As such, the imaging optics include a combination of lens elements having symmetrical or free-form lens surfaces that are tilted and decentered to expand a field-of-view.

Methods to build multi-functional scattering structures while respecting tight requirements imposed by manufacturing processes are described. The described methods and devices are based on etching away wire networks embedded in 3D structures to form voids in order to perform a target function. Optimization algorithms for designing binarized devices that meet manufacturing requirements are also disclosed.