Abstract: A projection curtain is provided in the present invention. The projection curtain at least comprises a reflective layer and one of a colored layer, a diffusion layer, and a Fresnel lens layer. The Fresnel lens layer is a spherical Fresnel lens layer or an aspherical Fresnel lens layer. The Fresnel lens layer comprises a plurality of annular protrusions protruding from a plane, the plurality of annular protrusions are arranged in circular bands. A cross-sectional shape of each annular protrusion along a cross section perpendicular to the plane is a triangular shape or a multi-step shape or a free surface shape. The width of one side of each cross-sectional shape parallel to the plane gradually changes, and gradual change of the cross-sectional shape and the width thereof determines light gathering characteristics of the spherical Fresnel lens layer or the aspherical Fresnel lens layer. A surface of each annular protrusion has scattered microstructures.

Abstract: Disclosed is an ultra-thin composite transparent conductive film, including: a transparent substrate; a first UV glue layer disposed on one side of the transparent substrate, pattern-imprinted and cured to form a first grid-shaped groove, the first grid-shaped groove being filled with conductive materials to form a first conductive layer; a second UV glue layer disposed on one side of the first UV glue layer away from the transparent substrate to provide a reinforced insulating support layer; and a third UV glue layer disposed on one side of the second UV glue layer away from the transparent substrate, pattern-imprinted and cured to form a second grid-shaped groove, the second grid-shaped groove being filled with conductive materials to form a second conductive layer, where a thickness of the reinforced insulating support layer is in a range of 5-10 micrometers.

Abstract: Disclosed is an ultra-thin composite transparent conductive film, comprising: a transparent substrate; a first UV glue layer disposed on one side of the transparent substrate, pattern-imprinted and cured to form a first grid-shaped groove and a first lead groove, the first grid-shaped groove and the first lead groove being filled with conductive materials to form a first conductive layer and a first lead region respectively, depth of the first grid-shaped groove and the first lead groove being smaller than a thickness of the first UV glue layer; a second UV glue layer disposed on one side of the first UV glue layer away from the transparent substrate and used as a reinforced insulating support layer; and a third UV glue layer disposed on one side of the second UV glue layer away from the transparent substrate, pattern-imprinted and cured to form a second grid-shaped groove and a second lead groove, the second grid-shaped groove and the second lead groove being filled with conductive materials to form a second

Abstract: A preparation method (100) for a three-dimensional micro-nano morphological structure manufactured by a laser direct writing lithography machine, comprising: step 110, providing a three-dimensional model diagram; step 120, dividing the three-dimensional model diagram in a height direction to obtain at least one height interval; and step 130, projecting the three-dimensional model diagram onto a plane to obtain a mapping relationship, wherein the mapping relationship comprises coordinates, on the plane, corresponding to each point on the three-dimensional model diagram, and wherein the height of each point on the three-dimensional model diagram corresponds to a height value in a corresponding height interval; and making the mapping relationship correspond to an exposure dose according to the mapping relationship, and performing lithography on the basis of the exposure dose. Any three-dimensional micro-nano morphological structure can be obtained.

Abstract: A high-speed and high-accuracy spectral video system has a filter module that filters optical signals in desired bands; a beam splitting module that splits the signal from the filter module into two identical beams entering an encoding aperture module and an RGB information acquisition module, respectively; a dispersion module disperses the optical signal and transmits the dispersed signal to a grayscale information acquisition module; a data reconstruction module aligns the signal from the grayscale information acquisition module to the signal from the RGB information acquisition module, denoises the signals, reconstructs a video by a bilateral filtering algorithm, and sends the reconstructed video to a display module for storage and display. A flame spectrum can be reconstructed using few sampling points to obtain broad-band spectral characteristics of the flame or using many sampling points to obtain high-accuracy spectral data.

Abstract: The invention relates to image display technology, in particular to a device for rendering an augmented reality image and a system for realizing augmented reality display comprising the device.

Abstract: A solar cell superfine electrode transfer thin film is described. The electrode transfer thin film sequentially includes from bottom to top a substrate, a release layer, a resin layer and a hot melt adhesive layer; the resin layer is formed with electrode trenches therein; the electrode trenches are formed with electrodes therein; superfine conductive electrodes are continuously prepared on a transparent thin film via a roll-to-roll nanoimprinting method, the width of an electrode wire being 2 ?m-50 ?m, and the width of a typical line being 10 ?m-30 ?m. Directly attach the superfine electrodes of the hot melt adhesive layer to a solar cell by peeling off the substrate material, and sintering at a high temperature to volatilize the hot melt adhesive layer material while retaining the electrodes, thus the electrodes are integrally transferred, without poor local transfer.

Abstract: A polishing fixture and a polishing system are disclosed. The polishing fixture includes a supporting platform, and an operating platform detachably and fixedly connected to the supporting platform. The operating platform includes at least two locating pins, the supporting platform and the operating platform are fixedly connected together to form a placement platform for the product to be polished. The object of the present invention is to provide a polishing fixture and a polishing system, after hundreds of products are fixed by the polishing fixture, the polishing equipment is capable of polishing hundreds of products at one time, which improves the polishing efficiency and reduce the rejection rate of the polishing products at the same time, and the rejection rate is as low as about three per thousand.

Abstract: Provided are a solar cell superfine electrode transfer thin film, manufacturing method and application method thereof. The electrode transfer thin film sequentially includes from bottom to top a substrate, a release layer, a resin layer and a hot melt adhesive layer; the resin layer is formed with electrode trenches therein; the electrode trenches are formed with electrodes therein; superfine conductive electrodes are continuously prepared on a transparent thin film via a roll-to-roll nanoimprinting method, the width of an electrode wire being 2 ?m-50 ?m, and the width of a typical line being 10 ?m-30 ?m. Directly attach the superfine electrodes of the hot melt adhesive layer to a solar cell by peeling off the substrate material, and sintering at a high temperature to volatilize the hot melt adhesive layer material while retaining the electrodes, thus the electrodes are integrally transferred, without poor local transfer.

Abstract: The present invention provides a colored radiative cooler based on a Tamm structure, including a substrate on which metal film and dielectric layers A to G are sequentially provided from bottom to top, where the Tamm structure is formed from the metal film and the dielectric layers A to D; a distributed Bragg reflector is formed from the dielectric layers A to D; and a selective emitter is formed from the dielectric layers E to G. Compared to the conventional radiative cooler, the colored radiative cooler not only has better cooling performance, but it has a wide applications in many aspects such as aesthetics and decoration.

Abstract: A method for accelerating hyperspectral video reconstruction includes steps of: acquiring, according to a spectral video and an RGB video captured by a hyperspectral video camera, a calibration matrix of the spectral video and the RGB video; sorting the calibration matrix to generate an ordered calibration matrix; converting, according to the ordered calibration matrix, the spectral video and the RGB video into a data matrix in a parallel manner; acquiring all related calibration points of a reconstruction region according to the ordered calibration matrix; and, reconstructing a hyperspectral video in a parallel manner according to the related calibration points and the data matrix. The related calibration points are acquired by sorting the calibration matrix, such that the number of times the calibration matrix is traverse is reduced, and the computation amount of hyperspectral video reconstruction is decreased.

Abstract: The present disclosure discloses a real-time micro/nano optical field generation and manipulation system and method. The system comprises a light source, a spatial filtering unit, an optical 4F system and a light wave manipulation unit, and the optical 4F system comprises a first lens (set) and a second lens (set) sequentially arranged along a light path. The present disclosure achieves real-time modulation on an incident wavefront through a phase element or a phase element assemble. By dynamically manipulating an incident light sub-wavefront, or the light wave modulation optical element, or different areas of the optical element, or different parts of the optical field in an imaging plane and/or the like by the spatial filtering unit, real time light fields with different parameters are generated in the image plane of the system.

Abstract: Disclosed is an ultra-thin composite transparent conductive film, comprising: a transparent substrate; a first UV glue layer disposed on one side of the transparent substrate, pattern-imprinted and cured to form a first grid-shaped groove and a first lead groove, the first grid-shaped groove and the first lead groove being filled with conductive materials to form a first conductive layer and a first lead region respectively, depth of the first grid-shaped groove and the first lead groove being smaller than a thickness of the first UV glue layer; a second UV glue layer disposed on one side of the first UV glue layer away from the transparent substrate and used as a reinforced insulating support layer; and a third UV glue layer disposed on one side of the second UV glue layer away from the transparent substrate, pattern-imprinted and cured to form a second grid-shaped groove and a second lead groove, the second grid-shaped groove and the second lead groove being filled with conductive materials to form a second

Abstract: Provided is a method for manufacturing an electromagnetic shielding film, which includes: step 1), coating a photoresist on a conductive substrate, and then forming a pattern structure on the conductive substrate through a photolithography process; step 2), growing a metal layer in the pattern structure through a selective electrodeposition process to form a metal pattern structure; and step 3), embedding the metal pattern structure in a flexible base material through an imprinting process to form an electromagnetic shielding film. A method for manufacturing an electromagnetic shielding window is also provided.

Abstract: The present invention provides a colored radiative cooler based on a Tamm structure, including a substrate on which metal film and dielectric layers A to G are sequentially provided from bottom to top, where the Tamm structure is formed from the metal film and the dielectric layers A to D; a distributed Bragg reflector is formed from the dielectric layers A to D; and a selective emitter is formed from the dielectric layers E to G. Compared to the conventional radiative cooler, the colored radiative cooler not only has better cooling performance, but it has a wide applications in many aspects such as aesthetics and decoration.

Abstract: A light guide plate with a toothed light incident surface includes a light guide plate body. A first plate surface and a second plate surface are formed at two opposite surfaces of the light guide plate body, respectively. Micro-structure points are provided and distributed randomly and densely on the first plate surface. Among multiple side surfaces of the light guide plate body, at least one side surface is provided with a plurality of first teeth arranged sequentially in parallel. The first teeth extend along a height direction of the light guide plate body. A first groove is arranged between every two neighboring first teeth. The light incident surface is formed by the plurality of first teeth and the plurality of first grooves.

Abstract: A naked eye 3D display device is provided. The naked eye 3D display device includes a directional projection screen, a laser light source, a red monochromatic laser light source, a green monochromatic laser light source and a blue monochromatic laser light source. Lights emitted by the three monochromatic laser light sources emit incident light on the directional projection screen with nano-grating pixels at specific angles and specific positions, and the same emergent light fields are formed. The laser light source provides multi-perspective image pixels. The multi-perspective image pixels match a nano-grating pixel array on the directional projection screen. By a direct spatial modulation for the laser projection light, colorful 3D display is achieved. There is no crosstalk between various viewpoints. The naked eye 3D display device has no visual fatigue and has a low cost.

Abstract: The present disclosure discloses a real-time micro/nano optical field generation and manipulation system and method. The system comprises a light source, a spatial filtering unit, an optical 4F system and a light wave manipulation unit, and the optical 4F system comprises a first lens (set) and a second lens (set) sequentially arranged along a light path. The present disclosure achieves real-time modulation on an incident wavefront through a phase element or a phase element assemble. By dynamically manipulating an incident light sub-wavefront, or the light wave modulation optical element, or different areas of the optical element, or different parts of the optical field in an imaging plane and/or the like by the spatial filtering unit, real time light fields with different parameters are generated in the image plane of the system.

Abstract: A light guide plate with a toothed light incident surface includes a light guide plate body. A first plate surface and a second plate surface are formed at two opposite surfaces of the light guide plate body, respectively. Micro-structure points are provided and distributed randomly and densely on the first plate surface. Among multiple side surfaces of the light guide plate body, at least one side surface is provided with a plurality of first teeth arranged sequentially in parallel. The first teeth extend along a height direction of the light guide plate body. A first groove is arranged between every two neighboring first teeth. The light incident surface is formed by the plurality of first teeth and the plurality of first grooves.

Abstract: A directive color filter and a naked-eye 3D display apparatus are provided. The directive color filter includes a color filter and a directive functional structure layer. The color filter includes multiple light filtering units, and each light filtering unit includes at least three light filtering sub-units with different colors. The directive functional structure layer includes multiple structure units, and each structure unit and one light filtering unit are arranged correspondingly. Each structure unit includes at least three structure sub-units. Each structure sub-unit and one light filtering sub-unit are arranged correspondingly. Each structure sub-unit includes multiple nano diffraction gratings.