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44results about How to "Polarized" patented technology

Single-mode single-polarization hollow negative curvature optical fiber

The invention discloses a single-mode single-polarization hollow negative curvature optical fiber. The invention discloses a hollow negative curvature optical fiber, which belongs to the technical field of hollow negative curvature optical fibers and comprises an outer cladding, four cladding tubes, a fiber core area, nesting tubes and a fiber core, wherein the four cladding tubes are uniformly arranged around the circle center of the outer cladding and cling to the inside of the outer cladding; the nesting tubes are respectively arranged in the cladding tubes and uniformly arranged around thecircle center of the outer cladding; the outer diameters of the four cladding tubes are equal, the wall thicknesses of the two cladding tubes in the Y direction are the same, the wall thicknesses ofthe two cladding tubes in the X direction are the same, the wall thickness of the cladding tubes in the Y direction is larger than that of the cladding tubes in the X direction, and the gaps between the adjacent cladding tubes in the circumferential direction are equal; the nesting tubes are tightly attached to the interiors of the cladding tubes and correspond to the position where the outer cladding is tightly attached to the cladding tubes; and the core area and other internal spaces are filled with air. At the working wavelength, the single-mode characteristic is good, the material is purequartz, the structure is simple, the effective mode field area is large, and the manufacturing efficiency is high.
Owner:四川天府江东科技有限公司

Light source, projection display apparatus and lamp

The invention provides a light source, a projection display apparatus and a lamp. The light source comprises a first excitation source and a second excitation source, and also comprises a wavelength conversion wheel; the wavelength conversion wheel comprises a wavelength conversion layer and a first reflective type polarizing film which are arranged in a stacked manner; the wavelength conversion wheel also comprises a first driving apparatus used for driving the wavelength conversion layer and the first reflective type polarizing film to turn; first excitation light and second excitation light are incident to a first position and a second position of the wavelength conversion wheel respectively to excite the wavelength conversion layer so as to emit first light with a first polarizing direction and second light with a second polarizing direction from the first position and the second position respectively; and the first light and the second light form mixed light in a position of a polarizing light mixing apparatus. According to the light source, the projection display apparatus and the lamp disclosed by the invention, based on the polarization property of the first light and the second light, the first light and the second light are combined into one beam through the polarizing light mixing apparatus, so that the luminance is greatly improved.
Owner:APPOTRONICS CORP LTD

Composite substrate, liquid crystal display screen, and manufacturing method

The invention discloses a liquid crystal display screen, a composite substrate, and a manufacturing method. The composite substrate comprises a substrate, a carbon nano-tube layer, and an optical alignment base material. The carbon nano-tube layer is bonded on the surface of the substrate through the optical alignment base material. The carbon nano-tube layer comprises a plurality of carbon nano tubes extending along a same direction. Since the extension directions of the plurality of carbon nano tubes in the carbon nano-tube layer are the same, the carbon nano tubes arranged in parallel would form a plurality of grooves arranged in parallel. The grooves can be used for initial alignment for liquid crystal molecules, that is, the carbon nano-tube layer can be used as an alignment layer. The carbon nano-tubes have polarization effect, and have transmission effect on light whose polarization direction is vertical to the extension direction of the carbon nano tubes, and have absorption effect on light whose polarization direction is parallel to the extension direction of the carbon nano tubes, that is, the carbon nano-tube layer can be used as a polarization layer. Thus, the composite substrate can be used as an alignment layer, and also can be used as the polarization layer. Therefore, the composite substrate is used as a TFT array substrate, and is simple in structure and low in cost.
Owner:XIAMEN TIANMA MICRO ELECTRONICS +1

Patterned sapphire substrate with nonpolar and semipolar surface, visual light communication light source with nonpolar and semipolar surface and preparation method thereof

The invention discloses a visible light communication light source based on a nonpolar and semipolar surface and a corresponding patterned sapphire substrate. A sapphire substrate is selected to be processed into grating-shaped strip-shaped patterns; the angle of the side wall of a step is optimized in the etching process, and the angle of a growth surface of the next step is optimized; a barrierlayer is designed on the patterned sapphire substrate, and a silicon oxide film is adopted as an epitaxial barrier layer; a GaN layer, an N-type GaN layer, an InGaN/GaN multi-quantum well layer, an electronic barrier layer and a p-type GaN layer are sequentially grown by adopting a chemical vapor phase epitaxy method, and the growth method of the GaN layer, the N-type GaN layer, the InGaN/GaN multi-quantum well layer, the electronic barrier layer and the p-type GaN layer is disclosed. The influence of quantum-limited Stokes effect is weakened by utilizing the advantages of non-polar/semipolarsurface on III-group nitride polarization regulation, the overlapping of electron-hole wave functions on real space is increased, and the radiation recombination proportion and the rate of current carriers are improved, and therefore, the method provided by the invention is suitable for effectively improvement of the visible light communication performances by adopting the nonpolar and semipolar surface technologies.
Owner:NANJING UNIV

Optical fiber with polarization function

The invention relates to an optical fiber with a polarization function. The optical fiber comprises a nanometer grating arranged inside the optical fiber. The optical fiber with the polarization function is simple in optical structure, low in cost, large in band width range of working and high in extinction ratio.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

Foamed ceramic microsphere of core-shell structure and preparation method and application thereof

The invention discloses a preparation method of a foamed ceramic microsphere of a core-shell structure. The method comprises the steps of silica sol preparation, silica sol gelation, preparation of a silicic acid xerogel microsphere, washing-surface aging treatment, secondary washing and drying and high-temperature foaming. The foamed ceramic microsphere of the core-shell structure has the grain diameter of 0.3-5 mm and is of an inner-outer layered structure, a ceramic hermetic shell with the diameter of 45-55 micrometers is arranged on the outer layer of the microsphere, polygonal aggregates are composed of micron-grade particles on the surface of the ceramic hermetic shell, the interval of every two adjacent polygonal aggregates is 0.8-1.2 micrometers, holes with the diameter of 80-120 nm are distributed in the intervals, a plurality of capillary channels are distributed in the holes, the micron-grade particles are used as a base core, nano particles are deposited on the surfaces of the micron-grade particles, and the specific area of the microsphere of the particles with nano particles deposited is larger than that of a smooth microsphere with the same diameter by 3-4 orders of magnitude; the interior of the microsphere is of a three-dimensional cut-through net micropore structure, and hermetic balls with the diameter of 0.2-0.5 micrometers are distributed in the micropores.
Owner:陈虹

Liquid crystal panel, display device and liquid crystal panel manufacturing method

The invention discloses a liquid crystal panel, a display device and a liquid crystal panel manufacturing method. The liquid crystal panel comprises a first substrate, a second substrate and a liquid crystal molecular layer, the first substrate and the second substrate are oppositely arranged, and the liquid crystal molecular layer is arranged between the first substrate and the second substrate; the first substrate comprises a plurality of polarization structures; the polarization structure comprises a pixel electrode and a common electrode 122; the pixel electrode comprises a plurality of first strip-shaped blocks; the common electrode 122 comprises a plurality of second strip-shaped blocks; and the first substrate further comprises a plurality of metal wire grid structures, the metal wire grid structures are arranged below the common electrode 122, and the metal wire grid structures are connected through metal wires. The pixel electrode and the common electrode 122 which are of a strip-shaped structure are arranged, so that the pixel electrode and the common electrode 122 have the traditional pixel electric control function and also have the polarization effect, a traditional iodine-system polaroid or a dye-system polaroid is replaced, the problem that the light transmittance of the traditional polaroid is low is solved, and the display brightness of the display device is improved.
Owner:MIANYANG HKC OPTOELECTRONICS TECH CO LTD +1

Lens, light source module, photoelectric module and ceiling lamp

The invention discloses a lens, a light source module, a photoelectric module and a ceiling lamp and relates to the technical field of lighting. By means of the provided lens, installation space of the lens can be saved, and thus the situation that the lighting effect is influenced because light interference is generated is prevented from occurring. The lens comprises two lens units. Each lens unit comprises an installation surface and an irradiation-exiting surface which are oppositely arranged. The middle of each installation surface is sunken towards the direction of the irradiation-exitingsurface, and a cavity is formed. The wall surface of each cavity is the incident plane. The outline of projection, on the plane which the corresponding installation surface is located, of each incident plane comprises a first arc line and a second arc line which are connected into a closed loop structure and whose openings are opposite. The dimension, in the direction perpendicular to the centralsurface, of each second arc line is larger than that, in the direction perpendicular to the central surface by the first arc line. Each second arc line is arranged in a manner that the second arc line is close to the central plane of the lens body. Besides, the two lens units are integrally formed. The light source module, the photoelectric module and the ceiling lamp can be used for improving the property of the lens.
Owner:宁波公牛光电科技有限公司

Preparation method of multifunctional all-fiber-based piezoelectric nano generator

The invention discloses a preparation method of a multifunctional all-fiber-based piezoelectric nano-generator, which comprises the following steps: preparing an electrostatic direct-writing nano-fiber membrane by using an electrostatic direct-writing method, and then plating a conductive film on one side and carrying out single-side super-hydrophobic treatment; and then compounding with an electrostatic spinning nanofiber membrane to prepare the all-fiber-based piezoelectric nanogenerator. The nanofibers which are orderly arranged in the electrostatic direct-writing nanofiber membrane form certain pores, so that the electrostatic direct-writing nanofiber membrane has good air permeability. The conductive film is plated on the single side, so that the electricity conduction of the generator is realized, the packaging step of the traditional piezoelectric nano generator is avoided, and the good air permeability and comfort are ensured. The single-side super-hydrophobic treatment reaches a super-hydrophobic state, so that the piezoelectric nano generator is not easily interfered by external moisture in the use process, the external moisture is ensured not to easily enter the piezoelectric nano generator, the stable output performance is maintained, and meanwhile, water drops rolling on the surface of the generator can take away dust on the surface through the super-hydrophobic treatment, so that the power generation efficiency is improved. And therefore, a relatively clean state is kept.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Light sources, projection display devices and lamps

The invention provides a light source and a projection display device and a lamp thereof. The light source comprises a first excitation source, a second excitation source and a wavelength conversion wheel, the wavelength conversion wheel comprises a wavelength conversion layer and a first reflective polarizing film which are arranged in laminated mode, and the wavelength conversion wheel further comprises a first driving device for driving the wavelength conversion layer and the first reflective polarizing film to rotate. The first excitation source and the second excitation source are respectively in incident at a first position and a second position of the wavelength conversion wheel to excite the wavelength conversion layer so as to enable a first light with a first polarization direction and a second light with a second polarization direction to be emitted out from the first position and the second position respectively, and the first light and the second light form combined light at the position of a polarization light combining device. According to the light source, the projection display device and the lamp, polarization characteristics of the first light and the second light are utilized, the first light and the second light are combined into one beam by using the polarization light combining device, and luminance is improved greatly.
Owner:APPOTRONICS CORP LTD
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