76results about How to "Improve diffraction" patented technology

The present invention provides systems of recording holograms that reduce the writing time, increase the diffraction efficiency, improve the resolution, or restitute color. These systems are well suited for use with an updateable 3D holographic display using integral holography and photorefractive polymer.

The invention discloses a transparent display panel, a display panel, a manufacturing method, and a display device. The transparent display panel includes a substrate, and a light-emitting element layer on the substrate. The light-emitting element layer includes a first electrode, a first light-emitting structure on the first electrode, and a second electrode assembly on the first light-emitting structure. The second electrode assembly includes a second electrode which is located on the first light-emitting structure and comprises a plurality of openings, and light-transmitting blocks which are located in the openings, wherein the material of the light-transmitting blocks is sparse from the material of the second electrode. According to the transparent display panel provided by the embodiment of the invention, by making use of the sparseness between the material of the light-transmitting blocks and the material of the second electrode, the formation of a film in the area with the light-transmitting blocks is avoided, thereby accurately patterning the second electrode.

A solid-state image sensor comprises a pixel unit having a substrate including therein a photoelectric conversion section and an optical waveguide arranged on a light incident side of the substrate so as to guide an incident light converted into a guided mode of the optical waveguide and being propagated through the optical waveguide to the photoelectric conversion section. The optical waveguide has a mode conversion section for changing a propagation state of the incident light such that the incident light being propagated through the optical waveguide has an electric field amplitude distributed with the same sign at a light incident surface of the substrate.

A holographic recording medium having a polymer matrix comprising a developer, wherein the holographic recording medium is capable of recording a latent hologram and the developer is capable of developing the latent hologram into a readable hologram by activation of the developer is disclosed. The holographic recording medium is capable of storing large numbers of holograms in the same volume with better signal resolution than previous holographic media by first recording a multitude of latent (or very weak) holograms in the same volume of space, then applying preferably a non-chemical fixing step to develop the latent holograms into readable holograms. The holographic recording medium and method of this invention cause the holograms to increase in diffraction efficiency, thus preventing complications caused during recording of holograms whereby previously recorded holograms interfere with latter recorded holograms in the same volume of space within the media.

The invention discloses a method for preparing an organic ammonium metal halide film. A half-closed type carrier gas free hot wall type low-pressure chemical vapor deposition method process is adopted to prepare the organic ammonium metal halide film. The method comprises the following steps: firstly, preparing a metal halide (MX2) film on a quartz substrate by using a dry method or a wet method, and transferring the metal halide (MX2) film into a glass tube for annealing, wherein one end of the glass tube is sealed and the other end is grounded; secondly, transferring the energy to organic ammonium (AX) powder inside the glass tube through a hot wall, forming steam blocks through self-diffusion of AX steam in low vacuum, performing chemical reaction on MX2 with a hot substrate to generate the film which is uniform in thickness, good in appearance, high in light absorption rate and smooth in surface, and performing in-situ annealing so as to generate the AMX3 film which is dense in structure and high in crystallinity degree. The method has the advantages that in-situ annealing can be performed in the film formation process, continuous vacuuming is not needed, the preparation time is shortened, the energy consumption is reduced, the filming efficiency is high, the charge capture trap in the film is reduced, and the carrier mobility is increased.

A solid-state image sensor comprises a pixel unit having a substrate including therein a photoelectric conversion section and an optical waveguide arranged on a light incident side of the substrate so as to guide an incident light converted into a guided mode of the optical waveguide and being propagated through the optical waveguide to the photoelectric conversion section. The optical waveguide has a mode conversion section for changing a propagation state of the incident light such that the incident light being propagated through the optical waveguide has an electric field amplitude distributed with the same sign at a light incident surface of the substrate.

The invention discloses a method for plating a metal surface with a diamond-like carbon (DLC) film. The method comprises the following main steps: (1) performing ultrasonic cleaning and vacuumizing; (2) performing ion cleaning, introducing argon gas, and opening an ion cleaning source to generate a large amount of argon ions to bombard the surface of a workpiece; (3) loading negative bias voltage between the metal workpiece and a vacuum chamber and opening a titanium electric-arc source to deposit a titanium transition layer on the surface of the metal workpiece; (4) introducing nitrogen gas and depositing a titanium nitride transition layer on the surface of the metal workpiece; (5) starting pulsed arc discharge, introducing hydrocarbon gas into a film plating chamber, and allowing carbon ions generated by pulse discharge and high-energetic neutral atoms of carbon to collide with hydrocarbon gas molecules so as to generate new carbon ions flying to the surface of the workpiece, thereby forming the diamond-like carbon film. The matching performance of the diamond-like carbon film and metal materials is well enhanced by means of depositing the transition layers, so that the diamond-like carbon film can be well adhered to the metal surface and the thickness of the film can achieve 1 micron meter.

An optical image capturing lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has negative refractive power. The third lens element has positive refractive power, wherein an object-side surface and an image-side surface of the third lens element are aspheric. The fourth lens element with refractive power is made of plastic material and has a concave image-side surface, wherein an object-side surface and the image-side surface of the fourth lens element are aspheric, and the fourth lens element has at least one inflection point formed on at least one of the object-side surface and the image-side surface thereof.

Disclosed herein is an interdigitation-type diffractive light modulator. In the interdigitation-type diffractive light modulator of the present invention, each of a pair of ribbons has a plurality of diffractive branches which are arranged in a comb shape, and the diffractive branches of the ribbons interdigitate with each other. Furthermore, the respective ribbons moves upwards and downwards or, alternatively, one ribbon moves upwards and downwards, so that the diffractive branches of the ribbons which interdigitate with each other form a stepped structure, thus diffracting incident light.

The present invention relates to a method and a system for the storage of data in the form of volume holograms which do not mutually overlap. The storage medium consists of a light-sensitive materail in the form of a plate of thickness D, in which a single hologram is essentially shaped as a cylinder with the minimal possible cross-section. The signal light beam is modulated with data and directed onto the plate-shaped storage material by means of a lens or a convenient optical system, illuminating an area of said material which, for a given amount of data, is the smallest possible. To record a hologram, a reference light beam is used, incident upon the storage material either from the same direction as the signal beam, or opposite thereto. In contradistinction to prior-art solutions, the inventive reference light beam used for recording illuminates, in the most favorable case, the smallest possible volume of the storage material. The holgoram is only written in the portion where the signal and the reference beams overlap, so its volume is equal to the volume illuminated by the reference beam.

A touch panel and a method of manufacturing the touch panel are provided. The touch panel includes: a first conductive substrate configured to form a plurality of first electrode lines on the first conductive substrate; and a second conductive substrate configured to form a plurality of second electrode lines in a direction crossing the plurality of first electrode lines on the second conductive substrate. The plurality of first electrode lines are respectively formed in a first area that is set to keep intervals between the plurality of first electrode lines irregular, and the plurality of second electrode lines are respectively formed in a second area that is set to keep intervals between the plurality of second electrode lines irregular.

The present invention provides a stacked-layered thin film solar cell and manufacturing method thereof The manufacturing method includes the steps of: providing a substrate, a first electrode layer and a first light-absorbing layer; providing a mask with a plurality of patterns above the first light-absorbing layer; forming an interlayer made of an opaque, highly reflective material by providing the mask on the first light-absorbing layer, wherein the interlayer has a plurality of light transmissive regions corresponding to the patterns, and the light transmissive regions are provided to divide the interlayer into a plurality of units; and then depositing a second light-absorbing layer on the units and a second electrode layer on the second light-absorbing layer.

The present invention relates to a method and a system for the storage of data in the form of volume holograms which do not mutually overlap. The storage medium consists of a high-sensitive material in the form of a plate of thickness D, in which a single hologram is essentially shaped as a cylinder with the minimal possible cross-section. The signal light beam is modulated with data and directed onto the plate-shaped storage material by means of a lens or a conventional optical system, illuminating an area of the material which, for a given amount of data, is the smallest possible. To record a hologram, a reference light beam is used, incident upon the storage material either from the same direction as the signal beam, or opposite thereto. The hologram is only written in the portion where the signal and the reference beams overlap.

An optical modulation device, according to an exemplary embodiment of the present invention, includes first and second plates facing each other, the first and second plates including a plurality of regions, and a liquid crystal layer interposed between the first and second plates, the liquid crystal layer including liquid crystal molecules aligned in a vertical alignment (VA) mode. The first plate includes a non-conductive layer including stepped structures repeatedly arranged in a first direction, a first electrode formed to partially cover the non-conductive layer, and first and second aligners disposed in a second direction different from the first direction, wherein the first and second aligners are aligned in opposite directions with respect to each other. The second plate includes a second electrode.