35results about How to "Good for mixing light" patented technology

The invention provides a substantially round illumination device (1) comprising a light source (10) and a substantially round waveguide (20). The waveguide (20) comprises a first waveguide surface (21), a second waveguide surface (22), a substantially round waveguide entrance window (23), a substantially round waveguide edge window (24), and a central axis (100). The first waveguide surface (21) or the second waveguide surface (22) or both the first waveguide surface (21) and the second waveguide surface (22) further comprise a plurality of elongated structures (200) each having an elongation axis (201) substantially parallel to a radius (101) perpendicular to the central axis (100).

Disclosed is an optical fiber that includes an inner core having a concentration of at least one laser active material, the inner core being adapted to operate in a single mode manner; and an outer core disposed about the inner core having a concentration of at least one laser active material. The outer core being adapted to operate in a multimode manner, a cladding disposed about the outer core; and an outer cladding is disposed about the cladding adapted to substantially confine pump light within the cladding.

The invention relates to the technical field of liquid crystal display, in particular to a backlight module and a liquid crystal displayer. The backlight module sequentially comprises a printed circuit board, a reflector plate, an LED light source and a diffusion plate from bottom to top. First protruding points are arranged on the light-in face, facing the LED light source, of the diffusion plate and around the projection, within the light-in face, of the LED light source. The first protruding points can conduct reflection diffusion on an illumination area, on the diffusion plate, of the LED light source, eliminate projection dark spaces and prevent light source gathering, so that the distribution of a light-emitting area on the diffusion plate is more uniform. Meanwhile, the LED light source can be independently controlled, local light control can be better achieved, and accordingly the display quality of a high-dynamic-comparison image is improved. The reflector plate can reflect leaking light again so that the light can irradiate the diffusion plate again, accordingly the utilization rate of the light source is increased, the light mixing distance is increased, and thinning design of the liquid crystal displayer is achieved easily.

A light source that has improved light mixing. The light source uses a nanolens layer in conjunction with an LED light source to enhance the mixing of the colored light emitting from the LED light source.

A method, an optical system and a lighting arrangement for homogenizing a bundle of light rays (110) by means of an elongated optical element (100) arranged for homogenizing light. The bundle of light rays is directed into a transversal entry face (101) of the optical element, and into at least one of the following geometrical regions: (a) a neighbourhood of the perimeter of the entry face; (b) a neighbourhood of at least a portion of a first line segment (R1) extending from the centre of the entry face to a mid-point of a vertex (123); (c) a neighbourhood of at least a portion of a second line segment (R2a) extending from the centre of the entry face to a midpoint of an edge (122).

A folded circularly symmetric illumination optic comprising a first light transfer mode having a first central refractive surface and a second central refractive surface, wherein one of the first and second central refractive surfaces has at least one peened feature; a second light transfer mode having a first refractive surface, a first TIR surface, a second TIR surface and a second refractive surface; a third light transfer mode having a first refractive surface, a first TIR surface and a second refractive surface, wherein the first TIR surface has at least one peening feature, and wherein the second refractive surface is conical; wherein the first TIR surface and second refractive surface of the second light transfer mode is coincident at least one point, wherein the second refractive surface of the third light transfer mode is coincident with the first TIR surface and second refractive surface of the second light transfer mode.

The invention discloses a lens and a lens group for plug-in LED lamp beads. According to the lens and the lens group for the plug-in LED lamp beads, single lenses are included; the single lenses are hollow semi-elliptical solids, externally provided with lens emergent faces formed by smooth spline surfaces, and internally provided with lens incident faces formed by smooth hemispherical surfaces, and lamp bead accommodating cavities are formed in the single lenses; a certain number of single lenses form the lens group through regular array combination; the lens group is provided with lens group installation faces and lens group clamping hooks used for being assembled with other mechanism pieces; a lens group accommodating cavity for accommodating a cable, and a lens group waterproof ring accommodating cavity for accommodating a waterproof ring are formed in the lens group; the plug-in LED lamp beads are arranged in the centers of the lamp bead accommodating cavities, and the gap between the top face of each lamp bead and the corresponding lens incident face is not more than 0.5 mm; the thickness of the lens between each lens incident face and the corresponding lens emergent face is 0.5-2 mm; each plug-in LED lamp bead is placed in the corresponding lamp bead accommodating cavity; and the lens group is made of polycarbonate or organic glass.

The invention discloses an LED light guide lens. The LED light guide lens comprises a long-strip-shaped cylindrical body, a flat cylinder and a hemispheroid which are sequentially connected; the long-strip-shaped cylindrical body is gradually increased from one end to the other end; the relatively large end of the long-strip-shaped cylindrical body is connected with the flat cylinder; the other end of the flat cylinder is connected with the hemispheroid; the spherical surface or the smooth curved surface of the hemispheroid is a light outlet surface of the LED light guide lens; the long-strip-shaped cylindrical body, the flat cylinder and the hemispheroid are coaxially; annular wave shaped fine grains are arranged on the side surface of the long-strip-shaped cylindrical body and the annular wave shaped fine grains extend from the relatively small end of the long-strip-shaped cylindrical body to the relatively large end of the long-strip-shaped cylindrical body, and the annular wave shaped fine grains are rotatably symmetrical; and the LED light guide lens is rotatably symmetrical. According to the LED light guide lens disclosed by the invention, light is mixed by the annular wave shaped fine grains, so that good light mixing is realized; and the problem that the original light guide lens has hybrid blood streak shaped varied spots during light mixing can be eliminated.

The invention discloses a multi-chip white LED package structure, which comprises a bracket; a first light-emitting chip, a second light-emitting chip, a third light-emitting chip which are installed in the bracket; a plurality of bonding pads; and a packaging glue packaging each of the light-emitting chips in the bracket. The packaging glue is preferably an epoxy resin. The first light-emitting chip is disposed on one bonding pad. The second light-emitting chip and the third light-emitting chip are connected in parallel or in series and are disposed on the respective bonding pads. The three light-emitting chips are electrically connected to the respective bonding pads respectively. The three light-emitting chips are packaged in the bracket by the packaging glue. A plurality of solid particles or/and a plurality of material mixtures are arranged in the packaging adhesive encapsulation glue. The solid particles have the function of refraction or reflection or penetration. The material mixtures are formed by mixing a plurality of materials with different refractive indexes. The multi-chip white LED package structure has the characteristics of reasonable design, simple structure, safe and reliable work, and so forth; and can effectively solve the problem that the white light cannot be completely mixed due to the failure of the chips to overlap in space and the resulting presence of areas where the light mixing is not complete.

The invention relates to the technical field of illumination, in particular to an LED diffuse reflection triple-prevention lamp. The LED diffuse reflection triple-prevention lamp comprises a shell body, wherein the shell body is integrally formed by aluminum profiles. The integrally formed shell body is provided with five folded edges. The first folded edge and the fifth folded edge are parallel to each other. The free end portions of the first folded edge and fifth folded edge are thickened inwards. Clamping grooves are arranged on the inner sides of thickened ends. First installing grooves are arranged at positions, corresponding to the clamping grooves, outside the thickened ends. Inclined planes are arranged on the inner sides of the thickened ends and provided with first concave clamping grooves. A V-shaped clamping groove is arranged at the junction of the thickened end of the first folded edge and a straight edge of a folded edge. A V-shaped clamping groove is arranged at the junction of the thickened end of the fifth folded edge and a straight edge of a folded edge. Installing grooves are arranged at the inner sides of bending portions of all folded edges respectively. Thethird folded edge is symmetrically provided with a pair of concave clamping grooves. The diffuse reflection triple-prevention lamp is simple in structure, high in light emitting rate, soft in light, free of glare, waterproof, dustproof and capable of avoiding falling.

The invention relates to the technical field of lighting, and provides a lamp which comprises a substrate, a plurality of light-emitting units and a control module, each light-emitting unit comprisesa white light source and a plurality of RGB light sources, each white light source comprises a plurality of white light beads, and each RGB light source comprises a red light bead, a green light beadand a blue light bead; the control module comprises a white light control module and an RGB control module, and can enable the light-emitting units to generate light meeting the requirements of various occasions. The lamp beads of the RGB light source are arranged adjacently in pairs, so that light can be well mixed. The plurality of RGB light sources are uniformly arranged on the periphery of thewhite light source, so that light of the RGB light sources and the white light source can be uniformly mixed in the single light emitting unit. The plurality of light-emitting units are uniformly distributed at intervals along the circumferential direction of the central area, so that when the control module adjusts the white light sources and the RGB light sources, the lamp can emit uniform mixed light.

The invention discloses a light-increasing structure, a backlight module and a display device of a backlight module. The problem that the gap between two adjacent partitions in the prior art has a relatively serious mixed light is solved. The light-increasing structure has a plurality of backlight partitions and a gap region between two adjacent backlight partitions, the light-increasing structureincludes at least one prism layer, the prism layer is provided with a plurality of prisms arranged in parallel, the apex angle of the prism corresponding to the backlight partition is a first angle,the apex angle of the prism corresponding to the gap region is a second angle, and the angle of the second angle is smaller than the first angle.

A light emitting device (100) is provided that comprises a longitudinally elongated housing (101) comprising a top wall (102) and opposing diffusing surface (103), and two mutually opposing reflective longitudinally elongated sidewalls (104) connecting said top wall (102) with said diffusing surface (103). An array of mutually spaced apart light emitting diodes (105) arranged is in said housing along the longitudinal extension thereof, and at least one of said sidewalls (104) is provided with an array of mutually spaced apart light redirecting means (106). The light redirecting means reflect light away from the LED that emitted the light, leading to a good mixing of light from the LEDs in the array.

It is presented an optical component (5) a first side (30) and a refractive opposite side (14). The refractive side (14) presents a refractive surface (13) and has radially extending refractive structures (6) for refracting light mainly in the azimuth direction (27) of an inciding light beam. The optical component (5) can be used as an exit window in a luminaire (1) having at least one light source (4), whereby light inhomogeneity may be reduced.

The invention discloses a light mixing, color mixing and light condensing light ray extraction apparatus for lighting. The light mixing, color mixing and light condensing light ray extraction apparatus comprises a light ray extractor arranged in a light emitting device, wherein luminous crystals are arranged in the light emitting device; the light ray extractor is connected to one end of the luminous crystals and used for extracting light rays emitted by the luminous crystals, mixing the light rays, mixing colors, condensing the light rays and then emitting the light rays out; the light ray extractor comprises a first condenser and a second condenser; two ends of the first condenser are correspondingly a first light ray input end connected to the luminous crystals, and a first light ray output end connected to the second condenser; the end, facing the first light ray output end, of the second condenser is a second light ray input end, while the other end of the second condenser is a second light ray output end; the first condenser and the second condenser have no optical contact; and the plurality of luminous crystals are arranged in parallel or in series on the side, far away fromthe first condenser, of the first light ray input end.

The invention discloses a multi-cavity LED street lamp. The multi-cavity LED street lamp comprises a front end cover and a rear end cover which are connected, wherein an independent cavity is formed in each of the front end cover and the rear end cover; the front end cover comprises a front cover and an LED lens, the LED lens is fixed on the front cover to form a closed cavity, and a PCB (printed circuit board) and an LED light source are arranged in the cavity formed by the LED lens and the front cover; the front cover is obliquely arranged to form an included angle with the horizontal plane, and the rear end cover is fixed on the front cover. According to the multi-cavity LED street lamp, the LED light source is obliquely mounted, most of outgoing light of the LED light source is irradiated to a street, the light energy utilization rate of the lamp is greatly increased, the light distribution efficiency is improved, and the optimal illumination is realized. With the adoption of high-voltage, linear and constant-current drive, an addition power supply is not required, the product size and the cost are greatly reduced, and the miniaturization design of the product is facilitated.