34results about How to "Uniform luminosity" patented technology

An LED lamp tube with improved sealing and cooling performance includes a plastic tube shell, an LED lamp strip, a metal casing and two end caps. The plastic tube shell is elongate and includes a light condensing structure and a light reflection structure integrally formed by extrusion and an installation chamber formed between the light condensing structure and the light reflection structure. The LED lamp strip is held in the installation chamber and at one side of the light reflection structure. The metal casing is coupled on the outer side of the light reflection structure. Each of the end caps is coupled on each of two ends of the plastic tube shell, thus can achieve IP67 waterproof and dustproof level, and also can resolve cooling problem of the lamp tube.

The invention discloses an intelligent tile exhibition lamp. Lamplight is provided for tiles in an exhibition zone through a light-emitting module for irradiation, image information of the irradiated tiles is collected through a camera shooting module to calculate the tile areas and the tile dip angles, the projection angles, the light-emitting angles, the luminance and the color temperatures of the light-emitting module are automatically adjusted according to the differences of the types, the areas, the dip angles and the tasting visual angles of the tiles, obvious light-reflection dazzle light cannot be generated when the tiles are irradiated by the lamplight, or the textures of the tiles cannot be shielded by the too bright lamplight, and convenience is brought to purchasing by clients. The people stream is induced by an induction module, the light-emitting module is controlled to be automatically and fully bright when people exists and automatically become dark when no people exists, energy saving is achieved, and the problem of lamplight interference of the adjacent tiles can be solved. Video information of the clients is collected, induction information of the induction module is used in a combined manner to analyze and record the user browse number and the staying time and upload the user browse number and the staying time to a data processing center or a cloud terminal server, and therefore sellers can visually and accurately master consumption data like preference of different consumption crowds conveniently and accurately formulate marketing strategies in time.

The invention discloses a lighting device, which at least comprises a base, wherein the base is provided with a or a plurality of laser diode chips and a or a plurality of lighting diode chips, wherein at least a laser diode and a lighting diode is arranged on the base. The lighting device can have characteristic illuminating of the laser diode when an extremely narrow spectrum frequency bandwidth is needed, and characteristic illuminating of the lighting diode which has better heat dissipating characteristics when the extremely narrow spectrum frequency bandwidth is not needed.

The invention discloses a capsulation structure of white light. A printing circuit layer is setup on base. A covering layer with through hole is setup on the printing circuit layer. Being placed on the through hole, chip is connected to circuit layer electrically through weld line. Resin is filled to the through hole to cover surfaces of chip, weld line and printing circuit layer. Next, prefabricated even luminescence thin film is placed on the through hole to cover the resin layer. Then, an optical lens is setup on the even luminescence thin film and covered layer. The disclosed structure provides white light source with even photo chromic and brightness.

The invention discloses a water-resistant paint which is composed of the following raw materials in parts by weight: 10-16 parts of synthetic resin 5-7 parts of isocyanate, 8-12 parts of methyl methacrylate, 16-24 parts of boiled wood oil, 4-6 parts of vegetable wax, 2-6 parts of color matching pigment, 0.2-0.5 part of dispersing agent, 6-9 parts of ethanol, 2-4 parts of emulsifier, 6-10 parts of turpentine, 3-6 parts of nano titanium dioxide and 0.6-1.6 parts of antioxidant. The water-resistant paint has the advantages of high water resistance and low shedding tendency, and is uniform and glossy.

A semiconductor light-emitting device that is high in luminous efficiency and that emits light which is high in color rendering property includes a semiconductor light-emitting element that emits blue light; a green fluorescent substance that absorbs the blue light and emits green light; and an orange fluorescent substance that absorbs the blue light and emits orange light, fluorescence emitted by the green fluorescent substance and the orange fluorescent substance having an emission spectrum that has a peak wavelength of not less than 540 nm and not more than 565 nm and that satisfies the relation of 0.70>PI(90)/PI(MAX)>0.55, where PI(MAX) represents an emission intensity at the peak wavelength, and PI(90) represents an emission intensity at a wavelength 90 nm longer than the peak wavelength.

The invention discloses a vehicle plate capable of uniformly emitting light. The vehicle plate comprises a base, an outer ring, an LED driving circuit board, a light guide plate and a vehicle logo bearing plate; a photosensitive switch is arranged at the bottom of the base; the LED driving circuit board is fixed in the base; LED lamps are mounted on the edge and the center position of the LED driving circuit board; the light guide plate is mounted on the right side of the LED driving circuit board, and is provided with LED lamp holes for embedding in the LED lamps; a light transmission paper covers the light guide plate; the vehicle logo bearing plate is mounted on the right side of the light transmission paper, and is provided with a hollow vehicle logo; screw holes are formed in the base, the LED driving circuit board, the light guide plate, the light transmission paper and the vehicle logo bearing plate; the outer ring is provided with screws and a photosensitive switch cover; and the screws are connected with the base through the screw holes. The vehicle plate is energy-saved and beautiful, and realizes light emitting of different characters, patterns or marks; and meanwhile, aphotosensitive switch can control light emitting of a vehicle logo according to external brightness to realize automatic control.

The book scanner includes one main body with glass window, and one optical bench set inside the main body. The glass window set on the main body has angled structure for the scanned file to be set on, and the optical bench is provided with one bar light source corresponding to the glass window. Especially, the light source has its stronger light part far from the glass window and weaker light part near the glass window, so that the scan lines generated via irradiating the light source to the scanned matter have stable and homogeneous brightness.

A light plate assembly having minimal light leakage and uniform luminosity. The light plate assembly has a housing, a trough within the housing and a cover. The cover has a transparent window with an opaque side edge that prevents undesired light leakage between an outer surface of the transparent window and a base frame of the cover. The transparent window also has a length and a width, and a length-to-width ratio of greater than 10:1. In addition, luminosity variation along a length of the transparent window is less than 20%, and in some instances less than 10%.

The invention discloses a lighting device, which at least comprises a refrigeration chip, wherein the refrigeration chip is provided with a or a plurality of a laser diode chips and a or a plurality of lighting diode chips, wherein at least a laser diode and a lighting diode are arranged on the base. The lighting device can have characteristic illuminating of the laser diode when an extremely narrow spectrum frequency bandwidth is needed, and characteristic illuminating of the lighting diode which has better heat dissipating characteristics when the extremely narrow spectrum frequency bandwidth is not needed.

The invention provides aqueous paint. The aqueous paint is prepared from the following raw materials in parts by weight: 10-16 parts of synthetic resin, 6-12 parts of acrylonitrile, 8-16 parts of an acrylic emulsion, 20-40 parts of oil materials, 3-5 parts of arachidic acid, 4-8 parts of magnesium chloride, 7-9 parts of a curing agent, 6-10 parts of vegetable wax, 3-5 parts of a leveling agent, 1-3 parts of a defoaming agent, 7-9 parts of a moisture-proof agent, 4-6 parts of color modulation pigments, 10-20 parts of titanium dioxide, 8-10 parts of linseed oil, 8-12 parts of rosin water and 1-2parts of an antioxidant. The aqueous paint is high in storage stability and excellent in viscidity, has high scratch resistance, water resistance and weather resistance, also has high acid resistanceand alkali resistance, is not easy to fall off, and is uniform and lustrous.

An illuminated keyboard providing high and uniform luminosity includes a keyboard portion and at least one light guide element. The keyboard portion includes a plurality of key units and a substrate to hold the key units. The key units are arranged in parallel rows each having multiple key units to form a key unit assembly. The key unit assembly is spaced from the substrate to form a vertical projection space, and any two neighboring key unit assemblies form a horizontal mounting space. The light guide element includes a light guide portion located in the horizontal mounting space and two light projecting portions located in the vertical projection space. Each light projecting portion has at least one transparent zone to project light transmitted by the light guide portion into the vertical projection space to provide uniform luminosity for the key unit assembly.

The invention provides an LED strip lens and LED strip lamp with even luminosity of 180 degrees. The upper surface of the LED strip lens comprises two arc-shaped curve surfaces which are symmetrical to each other. The middle part of the lower surface of the LED strip lens is provided with a semi-elliptic groove, and the two side ends of the LED strip lens are provided with clamping parts. The LEDstrip lens and LED strip lamp with even luminosity of 180 degrees have the beneficial effects that by arranging the shape of the upper surface of the LED lens as the two arc-shaped curve surfaces symmetrical to each other, the middle part of the lower surface of the LED strip lens as the structure of semi-elliptic groove, and according to the refractive index and thickness distribution of lens materials, ray of light emitted by LED emitting components in the lens can be reflected and refracted, and finally, the uniform distribution of luminosity at sectional positions of a box body is achieved. The structure of a second LED strip lens is formed by integrating the LED strip lens with a strip seat of the LED lens, the LED emitting components are arranged in the structure, the leakproofness is improved, water vapor is prevented from entering the structure, and the service life of the emitting components on a LED light panel is prolonged.

The invention is a display and a facture method of a picture-pixel forming sturcture of an organic electronic assembly, in which liquid ink is provided in a single longitudinal direction or a transverse direction to form two edges which are in parallel in the picture-pixels by using an insulating material, arranging direction of the insulating material is vertical to an arranging direction of an anode formed on coating indium tin-doped oxide (ITO) of a transparent glass substrate but not surround around four edges of the picture-pixel. When performing an ink jetting program, a row or a column is acted as an operation unit but not using a single picture-pixel as an ink jetting unit, so that each picture-pixel is formed evenly, and irradiance of the display is even. On the other hand, the arranging direction of the insulating material is in parallel with a cathode forming direction, the picture-pixels is jetted and formed at surfaces of the anodes by an int jetting device, the insulating material is two cathode separating strips adjacent with each other to ensure accuracy of the display picture-pixel facture process and increase irradiance area and uniformity of each picture-pixel.

The invention provides an LED polarized lens with uniform brightness. The LED polarized lens is arranged above a PCB circuit board, the LED polarized lens is provided with a lens inner cavity top surface, a first lens inner cavity side, a second lens inner cavity side, a first lens reflecting surface, a second lens reflecting surface, a first lens exit surface and a second lens exit surface, wherein the cross-sectional contour of a lens main body formed by the first lens exit surface, the first lens reflecting surface, the second lens reflecting surface and the second lens exit surface is M-shaped, and the lens main body is composed of a first lens assembly and a second lens assembly which are symmetrical at left and right. According to the invention, the LED polarized lens can project thelight emitted from the LED light source to the area of 70-80 degrees, and the width and height of a receiving area are the relationship of about five times, a small angle of focusing is realized, theratio of a maximum light intensity to lumen reaches 2Cd/Lm, the light spot effect in an LED light receiving area has a uniform transition, the illuminance uniformity reaches 1:1 .1, so that the illuminance uniformity of an LED lamp is improved, and a lamp power is reduced under the same illuminance.

A novel driving method targeting area color organic light emitting diode display devices aims at resolving the problems of poor color balance and uneven luminosity on the display panel resulting from different luminous materials.

The invention provides a surface-modified light-emitting chip. The surface-modified light-emitting chip comprises a light-emitting chip and a diffusion adhesive layer, and the diffusion glue layer covers the top of the front surface of the light-emitting chip so as to form the surface-modified light-emitting chip. The preparation method of the surface-modified light-emitting chip comprises a powder attachment procedure. The invention at least has the technical effects that: the diffusion glue layer is used for covering the top of the front surface of the light source to achieve a self-atomization effect; the visual defect that bright spots are generated on the light-emitting surface is directly reduced, and five-surface light emission is maintained to enable the light-emitting surface to have uniform luminosity or surface illuminance.