191results about How to "Uniform light effect" patented technology

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.

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 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.

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 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.

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 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 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.