Patent classifications
B29D11/00326
Optical beam-steering devices and methods utilizing surface scattering metasurfaces
Systems and methods are described herein for an optical beam-steering device that includes an optical transmitter and/or receiver to transmit and/or receive optical radiation from an optically reflective surface. An array of adjustable dielectric resonator elements is arranged on the surface with inter-element spacings less than an optical operating wavelength. A controller applies a pattern of voltage differentials to the adjustable dielectric resonator elements. The pattern of voltage differentials corresponds to a sub-wavelength reflection phase pattern for reflecting the optical electromagnetic radiation. One embodiment of a dielectric resonator element includes first and second dielectric members extending from the surface. The dielectric resonator elements are spaced from one another to form a gap or channel therebetween. A voltage-controlled adjustable refractive index material is disposed within the gap.
MONOLITHIC HIGH REFRACTIVE INDEX PHOTONIC DEVICES
Fabricating a high refractive index photonic device includes disposing a polymerizable composition on a first surface of a first substrate and contacting the polymerizable composition with a first surface of a second substrate, thereby spreading the polymerizable composition on the first surface of the first substrate. The polymerizable composition is cured to yield a polymeric structure having a first surface in contact with the first surface of the first substrate, a second surface opposite the first surface of the polymeric structure and in contact with the first surface of the second substrate, and a selected residual layer thickness between the first surface of the polymeric structure and the second surface of the polymeric structure in the range of 10 m to 1 cm. The polymeric structure is separated from the first substrate and the second substrate to yield a monolithic photonic device having a refractive index of at least 1.6.
Optoelectronic lighting apparatus and display device
An optoelectronic lighting apparatus includes a reflector having a reflector face, an optical component arranged at a distance from the reflector face and opposite the reflector face, and a light-emitting component arranged on the reflector face and having a light-emitting face, wherein the optical component has a plurality of differently configured reflection elements for reflection, in a direction of the reflector face, of electromagnetic radiation emitted by the light-emitting face.
Display device
According to one embodiment, a display device includes an optical element including a transmission axis which transmits first linearly polarized light and reflecting second linearly polarized light which crosses the transmission axis, a display unit which emits display light of the second linearly polarized light towards the optical element, a retroreflector including a retroreflective unit which retroreflects reflection light reflected by the optical element, and a non-retroreflective unit, a modulating element including a modulating unit disposed in a position which overlaps the retroreflective unit, and a non-modulating unit disposed in a position which overlaps the non-retroreflective unit.
Fabrication of optical metasurfaces
The method is provided for fabricating an optical metasurface. The method may include depositing a conductive layer over a holographic region of a wafer and depositing a dielectric layer over the conducting layer. The method may also include patterning a hard mask on the dielectric layer. The method may further include etching the dielectric layer to form a plurality of dielectric pillars with a plurality of nano-scale gaps between the pillars.
Ophthalmic lenses with light scattering for treating myopia
An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and/or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and/or a random variation in dot size.
DISPLAY DEVICE
A display device is provided, including a display panel; a light-emitting element disposed under the display panel; an optical functional film disposed between the display panel and the light-emitting element. The optical functional film is capable of transmitting at least part of the light emitted from the light-emitting element. A diffuser film is disposed between the display panel and the light-emitting element. The haze of the diffuser film is greater than 85%, and the thickness of the diffuser film ranges from 0.1 mm to 0.3 mm.
OPTICAL LENS WITH LASER INDUCED PERIODIC SURFACE STRUCTURE
An optical lens with laser induced periodic surface structure has an optical lens made in one-piece with a surface and a convex surface. The convex surface has a microstructure of periodic surface induced and formed by laser. The periodic surface structure has a plurality of linear structures periodically arranged with an interval of 50 nm-1000 nm between each other and a height of 50 nm-500 nm.
Monolithic high refractive index photonic devices
Fabricating a high refractive index photonic device includes disposing a polymerizable composition on a first surface of a first substrate and contacting the polymerizable composition with a first surface of a second substrate, thereby spreading the polymerizable composition on the first surface of the first substrate. The polymerizable composition is cured to yield a polymeric structure having a first surface in contact with the first surface of the first substrate, a second surface opposite the first surface of the polymeric structure and in contact with the first surface of the second substrate, and a selected residual layer thickness between the first surface of the polymeric structure and the second surface of the polymeric structure in the range of 10 m to 1 cm. The polymeric structure is separated from the first substrate and the second substrate to yield a monolithic photonic device having a refractive index of at least 1.6.
Glass plate and display device
The present invention relates to a glass plate including a first main surface subjected to antiglare treatment, and a second main surface opposed to the first main surface, in which a clarity index value T, a reflection image diffusiveness index value R and an anti-sparkle index value S satisfy respective relations of: clarity index value T0.8; reflection image diffusiveness index value R0.01; and anti-sparkle index value S0.85; and a transmission haze measured by a method according to JIS K 7136 (2000) being 15% or less. The glass plate of the present invention is excellent in clarity, reflection image diffusiveness and anti-sparkle, and also excellent in reproducibility of color.