Light directing film structure employing at least two layers having different refractive indices and forming a continuous corrugated boundary between major surfaces of the film. The corrugated boundary forms a plurality of alternating facets forming different dihedral angles with a prevalent plane of the film structure. The facets may longitudinally extend along a straight, arcuate, circular, or curvilinear path. Light received by a major surface of the film structure is internally redirected by interacting with the facets of the corrugated inter-layer boundary and may be emitted from the opposing major surface towards a new propagation direction which is different from the original propagation direction.

An optically active material set can include a particulate build material including polymer particles having an average particle size from 10 m to 100 m, wherein the particulate build material as a whole has a transparency from 85% to 100%. The material set can further include an inkjettable fluid for application to the build material for 3D printing, wherein the inkjettable fluid may include dielectric nanoparticles having an average particle size from 1 nm to 100 nm.

Disclosed is a method for manufacturing an optical article, including: providing a base-lens substrate having opposite first and second lens surfaces, and at least one optical element disposed on the second lens surface or embedded within the base-lens substrate, each optical element having a maximum height that is less than or equal to 0.5 mm, and a maximum width that is less than or equal to 2.0 mm, and performing a differentiate coating deposition on the second lens surface, wherein the second lens surface includes at least two areas defined according to their relative position with respect to at least one optical element, and the differentiate coating deposition includes changing at least one parameter of the coating deposition according to the considered area.

Methods of forming Luneburg lenses and Luneburg lenses formed from same are provided. One method includes providing a spherical core formed of a material with a substantially uniform dielectric constant from a center of the spherical core to an outer surface of the spherical core. The method further includes forming a plurality of holes that are substantially uniform in size and symmetrically located about the center of the spherical core. The method further includes forming an at least one outer layer that is substantially spherical by winding a filament formed of a low-loss material around the spherical core.

Methods of fabricating optical lenses and mirrors, systems and composite structures based on diffractive waveplates, and fields of application of said lenses and mirrors that include imaging systems, astronomy, displays, polarizers, optical communication and other areas of laser and photonics technology. Diffractive lenses and mirrors of shorter focal length and larger size, with more closely spaced grating lines, and with more exacting tolerances on the optical characteristics, can be fabricated than could be fabricated by previous methods.

A wafer level lens system includes a target lens and a wafer level lens group. The target lens includes a first surface, a second surface, and a first fitting structure. The second surface is opposite to the first surface. The first fitting structure is disposed at the second surface. The wafer level lens group includes a first transparent plate and a second fitting structure. The first transparent plate has a third surface and a fourth surface opposite to the third surface. The second fitting structure is disposed on the third surface. The first fitting structure is fitted into the second fitting structure, and there is a space encapsulated between the second surface and the third surface.

A method for producing a light transmissive optical component (10) is disclosed. The method comprises 3D printing a stack (1) of at least two layers (2). Each layer (2) is a biconvex cylinder lens having an optical axis (OA) perpendicular to a stacking direction (S) of the stack (1).

Systems and methods are provided for forming an optical element within a transparent material using an irradiating optical beam, where the irradiating optical beam is employed to induce internal refractive index changes in the transparent substrate. Optical elements such as bulk and gradient index lenses may be formed in the transparent structure according various embodiments of the disclosure. An optical element may be formed by selecting a refractive index profile for the optical element, determining a corresponding suitable spatially dependent irradiation intensity profile for producing the selected refractive index profile, focusing an irradiating optical beam within the transparent structure, and controlling an intensity and position of the focused irradiating optical beam within the transparent structure according to the spatially dependent irradiation intensity profile.

Provided is a spectacles lens that includes a multilayer film disposed on a surface of a lens base material directly or via one or more other layers, wherein the multilayer film includes a plurality of high refractive index material layers and a plurality of low refractive index material layers, and a thickness of the thickest high refractive index material layer among the plurality of high refractive index material layers is greater than a thickness of the thickest low refractive index material layer among the plurality of low refractive index material layers.

An electronic device comprises a cover and an outer casing. The cover includes a first light transmitting substrate layer and a first pattern layer. The first pattern layer is attached to bottom of the first light transmitting substrate layer and includes a plurality of first microstructure patterns. The outer casing is mounted on the cover. The outer casing includes a second light transmitting protection layer and a second pattern layer. The second light transmitting protection layer includes a first surface facing the cover. The second pattern layer is configured at the first surface of the second light transmitting protection layer. The second pattern layer includes a plurality of second microstructure patterns. The first pattern layer and the second pattern layer are superimposed to form a virtual pattern image.