193results about How to "Uniform light effect" patented technology

The invention discloses a liquid cooling LED lamp which comprises a lamp seat, a heat abstractor arranged on the lamp seat and a heat conductive column fixed on the heat abstractor, wherein the heat conductive column is wound with a flexible circuit board along the side face and top face thereof, the flexible circuit board is provided with a plurality of LEDs, a transparent outer cover is sheathedat the periphery of the LEDs and fixed on the heat abstractor, and the transparent outer cover and the heat abstractor form a cavity filled with liquid. In the invention, as the cavity formed by thetransparent lamp cover and the heat abstractor is filled with heat conductive liquid, heat generated by the LEDs can be abundantly transmitted to the heat abstractor and the transparent outer cover bythe heat conductive liquid, thus improving the overall radiating effect of the lamp, reducing heat of the LEDs and improving the light emission efficiency. Simultaneously, the LEDs are wound on the side face and the top face of the heat conducting device by the flexible circuit board, thus improving the production efficiency of products and causing the light emission effect of the lamp to be moreeven.

An image projecting apparatus has an integrator for generating plural secondary-light-source images for generating illumination light with a uniform intensity; and a variable stop mechanism arranged at or near a position conjugate with the secondary-light-source images. The variable stop mechanism has a base plate having a fixed aperture; and a stop blade which moves across the aperture for changing a quantity of light. The change in the quantity of light passing through said variable stop caused by the movement of said stop blade is greater than a change in a size of an effective region of a stop aperture.

The invention discloses a deign method of a light-type controllable lens with double freeform surfaces. The method comprises the following steps of: taking a light source as an origin of coordinates according to an energy equal division principle to divide a three-dimensional space of the light source into gridding graphs according to latitudes and longitudes, wherein the gridding graphs have the equal luminous fluxes and the latitudes and the longitudes are crossed; dividing a target surface into grid regions with equal areas and equal luminous fluxes; and distributing two times of deflection angles of lights on inner and outer surfaces of the lens with the double freeform surfaces according to the symmetrical characteristic of the target surface of the lens with the double freeform surfaces to be designed and a pre-set function relation between the inner and outer surfaces or through a direction of incidence lights of the lens and a direction of final outgoing lights, which are obtained by dividing the light source and the target surface, and then designing. The inner and outer surfaces of the lens with the double freeform surfaces can be designed into different shapes which are applicable to different packaging requirements; the control of light beams is realized through the inner and outer surfaces, thereby meeting various different illumination requirements and realizing various different illumination effects.

A LED lighting fixture includes a cavity receiving a light guide board, and a plurality of LEDs mounted within two reinforcing parallel grooves formed in the light guide board along the length of corresponding opposite lateral sides. The light guide board further includes a clear base portion made of a light transmissive material, and a continuous reflective layer disposed over a surface of the clear base portion, the reflective layer having a portion protruding into the clear base portion. Light from the LEDs is injected transversely into the inside of the light guide board for reflection by the reflective layer to be ejected from the lighting fixture through a surface of the light guide board.

An amplified condensing LED light lens and a module thereof are disclosed. The lens is a downwardly tapered cup structure having a first light-incident surface and a second light-incident surface concavely disposed at the bottom of the amplified condensing LED light lens to form a containing space and a light-incident hole, and the containing space is provided for containing a light emitting source, and a residual light blocking structure is protruded from the first light-incident surface for blocking a residual light of the light emitting source. If the distance between the first light-incident surface and the light-incident hole is S, the distance between the bottom of the residual light blocking structure and the light-incident hole is L, 0<L<(⅜)*S, and S≧0.8*D, the residual light blocking structure can hinder the occurrence of a residual light phenomenon caused by the reflection of the light emitting source from the second light-incident surface.

The invention relates to the field of diffusion plates, in particular to a foaming light diffusion plate and a preparation method and application thereof. Compared with a chemical foaming agent, supercritical fluid is used for foaming to prepare the light diffusion plate, residues of toxic substances cannot be caused, meanwhile, the prepared light diffusion plate has excellent optical performance by controlling the introduction rate of the supercritical fluid, gathered point light sources can be homogenized, and the light diffusion plate has excellent haze; the maximum haze can reach 99.6%, the soft and uniform lighting effect can be achieved, meanwhile, the high light transmittance is achieved, the maximum light transmittance can reach 52.6%, and too high light loss cannot be caused; besides, the mass of the light diffusion plate is effectively reduced, the usage amount of raw materials is reduced, the production cost is reduced, meanwhile, the better mechanical strength is maintained, and the light diffusion plate has good impact resistance, smoothly passes an IK03 test and is wide in application prospect.

A LED lighting fixture includes a light guide board, which is made of a high transmissive material and directly mounted in the cavity of a lamp holder, furniture, utensil, or the construction of a building, having a clear base layer at the front side and a continuous piece of reflective layer with a corrugated cross section at the back side, and a plurality of LEDs mounted within the cavity outside the light guide board and controlled to emit light transversely into the inside of the light guide boards for reflection by the reflective layer to increase the angle of illumination and to provide a uniform lighting effect having an enhanced brightness without multi-image and flashing.

The invention relates to a diffusion plate, a manufacturing method of the diffusion plate and a backlight module. The diffusion plate is applied to the direct type backlight module provided with a reflecting type second lens. Reflecting net points are arranged on the diffusion plate and formed by white printing ink mixed with a small amount of blue printing ink and white light is generated by the reflecting net points with yellow light, so that the color cast problem caused by use of the reflecting type second lens is solved.

The invention relates to an LED total reflection lens, an LED light guiding body and an automobile lamp. The LED total reflection lens is of an integrated type polyhedron structure; the main structureis a cuboid, and is provided with a light incoming face, a light outgoing face, a conical total-reflection face, a combined total-reflection face, a chamfered total-reflection face and an air lens; the air lens is of an integrated and up-down through structure; the air lens is divided into an upper refraction face and a lower refraction face; the lower refraction face is a curved face or a plane;the middle portion of the upper refraction face is a plane or a curved face; tooth-shaped structure uniformly distributed on the two sides of the middle portion are on the two sides of the upper refraction face; the tooth-shaped structures are total-reflection teeth; and the tooth face of the total-reflection teeth is a total-reflection face. The LED total reflection lens is arranged into the polyhedron structure, by means of changes of different face types, light ray is collected and then is allocated, a uniform visual effect can be achieved, the energy utilizing rate is high, the using number of LED light sources is small, and the problems that an existing light guide is poor in light allocating uniformity, and the energy utilizing rate is low are solved.

An LED die comprises a substrate and an epitaxial layer formed thereon. The epitaxial layer comprises a first n-type semiconductor layer, an active layer and a p-type semiconductor layer grown on the substrate in sequence. The LED die defines a receiving recess formed in a center of a top face of the p-type semiconductor layer. The receiving recess extends through the p-type semiconductor layer, the active layer and into the n-type semiconductor layer along a top-to-bottom direction of the epitaxial layer. A pair of p-pads are located at two opposite sides of the p-type semiconductor layer, respectively. A first n-pad is received in the receiving recess and located on the n-type layer.

The invention discloses an elevator ceiling arranged on a top plate of an elevator car. The elevator ceiling comprises a framework and lighting devices, wherein the framework comprises two fixing frames, two connecting frames and a plurality of lighting device mounting crossbeams; the two fixing frames are parallel to each other, and are respectively detachably connected with the top plate of theelevator car; the two connecting frames are parallel to each other and are respectively detachably connected with the two fixing frames; the lighting device mounting crossbeams are arranged between the two connecting frames, and are respectively detachably connected with the two fixing frames; and the lighting devices are arranged on the lighting device mounting crossbeams. The elevator ceiling has the advantages that: the height space of the elevator car is promoted in the aspect of vision, the appearance is attractive, the lighting efficiency is high, the elevator ceiling is convenient to detach and transport, light-emitting diode (LED) devices are suitable to be adopted and the maintenance cost is low.

A LED light module for a vehicle includes a reflective light frame having an elongated light reflective channel, a LED light assembly supported along the light reflective channel for generating light along the light reflective channel to provide an even light intensity distribution therealong, and a light diffusion holder enclosing the LED light assembly within the light reflective channel, wherein the light diffusion holder diffuses the lights at the light reflective channel to generate a uniform light effect along the light diffusion holder.

The invention provides an LED (light emitting diode) reflecting lamp, comprising a control circuit, at least two LED light sources, at least two light source panels fixed with the LED light sources, a light reflecting cup with an inner reflecting surface, a reflecting opening and a through groove at the bottom part of the light reflecting cup, a heat conducting column in a polyhedral column body shape, and a radiator with a cavity, wherein the at least two light source panels are fixedly connected on the surface of the heat conducting column respectively in a heat conducting way, the size and the shape of the cavity are made to be matched with at least one part of the bottom part of the light reflecting cup, and the heat conducting column is inserted into the inner part of the light reflecting cup through the through groove at the bottom part of the light reflecting cup and is arranged on the radiator, so that the LED light source is parallel to the central vertical axis of the light reflecting cup and the central vertical axis of the radiator or the LED light source forms a certain angle with the central vertical axis of the light reflecting cup and the central vertical axis of the radiator. The LED (light emitting diode) reflecting lamp provided by the invention has the characteristics of good heat conductivity, good radiation capacity and good concentrated optical rotation, evenness in lighting, adjustable lighting angle according to the demands and the like.

The invention belongs to the technical field of microscopes, and relates to a microscope lighting system based on LED arrays. The microscope lighting system comprises a microscope frame, a fixing device, a connecting device and an electric appliance controller, wherein an ocular lens, a converter, an object lens, an objective table set, a contrast push-pull plate set, a lighting device, a focusing mechanism and a lens wall set are arranged on the microscope frame, and the lighting device comprises an aspherical lens, an LED array lamp set, a PCB and an aperture diaphragm set. The lighting device is fixed into an integral body through the fixing device, and the focal length of the aspherical lens is 8-30mm. The LED array lamp set is arranged on the PCB and situated on a conjugate plane of the object lens incident pupil after passing the aspherical lens, the divergence angles of the LEDs in the LED array lamp set range from 15 to 60 degrees, and the number of the LEDs is no less than 15. The connecting device connects the lighting device on the microscope frame, and the lighting device is connected with the electric appliance controller through the connecting device. Nonuniform illumination and other problems caused by structural defects of a conventional microscope lighting device can be solved.

The invention discloses an LED optical structure for car lamps. The LED optical structure comprises a pattern structural face which is arranged on the front face of an LED lamp body and used for diffusing light types and an LED light source which is arranged behind the LED lamp pattern structural face. The LED optical structure is characterized in that a light guide inner lens is arranged right behind the LED lamp pattern structural face; the LED light source is arranged on one side of the light guide inner lens, namely, the LED light source is arranged on the rear side of the LED lamp pattern structural face; and a reflecting surface with a free curved surface is formed in the side, corresponding to the LED light source, of the light guide inner lens to ensure that the light from the LED light source reaches the LED lamp pattern structural face of the light guide inner lens after being totally reflected on the reflecting surface with the free curved surface. According to the LED optical structure for car lamps, the composite lighting effects of light sources with different colors are continuous and uniform so as to form continuous and uniform light emitting light bands.

The invention provides a flash LED of a mobile phone. A circuit board is provided with a first through hole; the circuit board is provided with an inner ring wall and an outer ring wall which form anoptical cavity, and a second through hole is formed in the inner ring wall; an inner cavity and an outer cavity is formed by an inner light reflecting layer, a middle light reflecting layer and an outer light reflecting layer in the optical cavity; two first LED chips are arranged in the inner cavity, and two second LED chips are arranged in the outer cavity; an inner light guide plate is arrangedin the inner cavity, and first fluorescent glue layers are covered with the first LED chips; an outer light guide plate is arranged in the outer cavity, and second fluorescent glue layers are coveredwith the second LED chips; the inner light guide plate and the outer light guide plate are covered with a diffusion layer and a Fresnel lens; a transparent protection cover is arranged at the top endof the inner ring wall and the outer ring wall, and a third through hole is formed in the transparent protection cover; the first through hole, the second through hole and the third through hole areconnected sequentially to form a lens cavity; and the circuit board is provided with a driving circuit for the first LED chips and the second LED chips. According to the flash LED, the light supplementary intensity and the light supplementary uniformity can be improved, silhouettes are avoided, the color temperature can be adjusted, and different requirements of users are met.

The invention provides a prism diffusion plate, a prism diffusion plate preparation method and a lamp. The prism diffusion plate includes a substrate, a microprism structure layer and a diffusion layer, wherein the microprism structure layer and the diffusion layer are respectively arranged at two surfaces of the substrate. According to the prism diffusion plate provided by the invention, the anti-glare effect of a microprism structure and the light diffusion effect of a diffusion plate can be integrated on one plate, and therefore, the two kinds of functions can be simultaneously realized on the same plate, and the preparation method of the prism diffusion plate is simple, and the effects of a finished plate can be excellent. According to lamp provided with the prism diffusion plate, the cost of the diffusion plate can be decreased, and resources can be saved, the installation and fixation mode of the lamp is simpler, and the lamp will be lighter and thinner.

The invention discloses a light-emitting device, including a base plate, a first conductive layer, a second conductive layer, a self-light-emiting layer and a first auxiliary conductive pattern layer. The first conductive layer and the second conductive layer are both arranged on the base plate. The self-light-emiting layer is arranged between the first conductive layer and the second conductive layer, and defines a light-emitting area on the base plate. The resistance of first auxiliary conductive pattern layer is contacted is smaller than that of the first conductive layer. The ratio of the circumference (micrometer) of the first auxiliary conductive pattern layer at the light-emitting area to the area of the (micrometer<2>) light-emitting area is not more than 0.0262 (1 / micrometer).

The invention provides a light processing device, a vehicle lamp with the light processing device and a vehicle provided with the vehicle lamp. The light processing device comprises a body, a light entering face and a light outgoing face, wherein the light entering face and the light outgoing face are arranged on the body. The body comprises a light diffusion part, a light collimation part and a light reflecting part, wherein the light diffusion part is used for diffusing light entering the light diffusion part through the light entering face, and the light entering face is arranged on the light diffusion part; the light collimation part is arranged on a transmission route of the diffused light and used for collimating the diffused light; the light reflecting part comprises a light reflecting face and a light outgoing part fixedly connected with the light reflecting face, an angle is formed between the collimated light and the light outgoing part, and the collimated light is transmitted by the light outgoing part and emitted out through the light outgoing face after being reflected by the light reflecting face. According to the light processing device, the vehicle lamp and the vehicle, a light face of the light is expanded through the light diffusion part, the emitted-out light is more even through the collimation processing of the collimation part and the processing of the light reflecting part, and the light outgoing effect is improved.

A watertight rope light of the present invention includes two parallel wires, a plurality of light emitting diodes and a transparent enclosing layer. The light emitting diodes are substantially parallel to the wires. Each light emitting diode has a semiconductor die, a lens, an anode leg and a cathode leg. The lens has a distal end, which is formed with an awl-shaped concave surface, and the semiconductor die is adapted to emit light toward the concave surface. As such, the light emitted from the semiconductor die can be reflected radially outward to illuminate the surrounding uniformly.

An LED filament, comprising a plurality of light-emitting chips, a metal electrical terminal, a fluorescent glue, an insulating substrate and an electrically and magnetically conductive connector. The plurality of light-emitting chips are connected in series, and encapsulated and fixed on a surface of the insulating substrate by the fluorescent glue, one face of the electrically and magnetically conductive connector is fitted on the other surface of the insulating substrate, the metal electrical terminal is electrically connected to a light-emitting chip at one end of the insulating substrate. Also provided is an LED filament light, comprising a plurality of LED filaments and a permanent magnet. The LED filaments are magnetically and movably connected by means of magnetic attraction via the permanent magnet, and are capable of automatic sliding adjustment during thermal expansion and elongation.

The invention discloses a light distribution method of a vehicle brake lamp. The light distribution method of the vehicle brake lamp is characterized by comprising an LED light source and an inner light distribution mirror; a discrete material is arranged in a substrate of the inner light distribution mirror; and emitted light of the LED light source is emitted out after passing through the inner light distribution mirror. The light distribution method is adopted; and the novel discrete material is used as an auxiliary material of the inner light distribution mirror, so that output light rays are scattered more uniformly, bright and dark areas formed on the surface of the inner light distribution mirror after lightening can be effectively weakened and eliminated, the illumination is uniform and beautiful, and the internal structure and light source selection is wider and more various.

The invention relates to a lens. The lens comprises a bottom surface and a surface sticking out from the bottom surface; a concave area is defined in the center of the bottom surface; the surface of the concave area forms an incident plane; the surface comprises a first refracting surface, a first reflecting surface, a second refracting surface and a second reflecting surface, wherein first light from a light source is emergent after being refracted by the first refracting surface; second light from the light source is emergent after being reflected by the first reflecting surface and refracted by the second refracting surface; third light from the light source is reflected by the first reflecting surface and the second reflecting surface, and then, is emergent after being refracted by the second refracting surface. Moreover, the invention also designs an illuminating device using the lens.

The invention provides a display substrate and a manufacturing method thereof, a display panel and a display device and belongs to the technical field of display. The display substrate comprises a waveguide layer, a transparent insulation graph and electrodes; the transparent insulation graph is located on the waveguide layer, the refractive index of the transparent insulation graph is smaller than that of the waveguide layer, the transparent insulation graph includes multiple first parts and multiple second parts, the first parts and the second parts are different in thickness, the first parts and the second parts are identical in the extension direction and are arranged alternatively, the thickness of the part is greater than that of the second parts, and the thickness of the second parts is less than the wavelength / (2*the refractive index of the transparent insulation graph) of visible light; the electrodes are located on the first parts of the transparent insulation graph. By the arrangement, even luminous efficiency of the display device can be achieved, and display effect of the display device is improved.

The invention discloses a light-emitting diode (LED) indoor illumination optical lens, which is of a rotary symmetrical structure, wherein a concave hemispherical surface which makes the LED emergent ray enter the lens without deflection is arranged at the bottom of the optical lens, an LED is installed at the sphere center of the hemispherical surface, the external surface of the optical lens is a free-form surface which controls the direction of the LED emergent ray and has continuously changed curvature, the radius of the hemispherical surface is 1 / 3R to 1 / 2R, wherein R is the radius of the bottom of the optical lens. The LED indoor illumination optical lens has a simple structure, reasonable design, uniform LED illumination, high illumination efficiency, widened LED utilization scope, is energy-saving and environmental-friendly, has a good use effect, and is convenient to popularize and use.

The invention relates to the technical field of chemical engineering and particularly discloses a fluorescent substance based on an amino acid deep eutectic solvent and a preparation method of the fluorescent substance. The fluorescent substance based on the amino acid deep eutectic solvent comprises the following ingredients: the deep eutectic solvent and rare earth chloride at a mass ratio of (10-20):1, wherein rare earth chloride is at least one of europium chloride, lanthanum chloride, terbium chloride or gadolinium chloride; and the deep eutectic solvent comprises an alcohol compound andamino acid at a mole ratio of (5-10):1. The fluorescent substance based on the amino acid deep eutectic solvent can achieve a uniform luminescence effect, and is good in heat stability, green and environmentally friendly.

The invention discloses a bulb lamp production method, which includes steps: firstly, producing a multi-angle light emitting module; secondly, producing a spherical glass shade; thirdly, preparing a wide-voltage adjustable driver; fourthly, preparing a lamp holder; fifthly, preparing a radiator; and sixthly, performing assembly. The invention further discloses a bulb lamp produced by the bulb lamp production method. The method is simple in process, low in cost and easy to implement, and can be used for quickly producing bulb lamps with wide lighting angle and effective illumination. The bulb lamp is ingenious in structural design, LEDs in the multi-angle light emitting module are scientifically distributed in terms of position and aluminum substrate inclination, a novel light distribution scheme is obtained, light distribution is convenient and flexible, and lighting angle is large. In addition, the bulb glass shade and the aluminum substrate are reasonable in design, light distribution effect can be improved better, light utilization rate is increased effectively, large optical length and uniform light distribution are achieved, and illumination of the bulb lamp in an effective illuminating range is enhanced greatly.

The invention discloses a novel solar illumination device. The device comprises a plurality of sunlight collectors, a plurality of sunlight illumination lamp caps and a plurality of sunlight transmission units which are used for transmitting sunlight energy collected by the sunlight collectors to the sunlight illumination lamp caps, wherein each sunlight collector is composed of a condenser lens and a secondary reflective coupler connected with the condenser lens; the sunlight illumination lamp caps are beam splitting lenses; the sunlight transmission units are photoconductive fibers; a protective cover is arranged outside the plurality of sunlight collectors; and a sunlight tracker is arranged at the top end of the protective cover. The solar illumination device has the advantages of simple structure, reasonable design, uniform illumination effect, long service life, good use effect and convenience in popularization and application, and can be used for enlarging the field of solar development and utilization and improving the solar utilization efficiency.