89results about How to "Evenly mixed light" patented technology

The LED package structure includes a substrate, an LED chip, a plastic package body, and two leading legs. In addition, the LED chip is arranged on the substrate and covered by the packaging plastic body. Moreover, the plastic package body contains a light-converging part and a light-scattering part, in which the light-converging part has a first axis and the light-scattering part has a second axis. In addition, the first axis of the light-converging part intersects the second axis of the light-scattering part. Furthermore, one terminal of each of the two leading legs is electrically connected to the LED chip while another terminal extends out of the packaging plastic body. Because the LED package structure can converge light and scatter light in different directions, the backlight module implementing the LED package structure has the advantage of a shorter light-mixing distance and better light utilization.

An LED unit module (11), a light-emitting device (1), and a light source system. The LED unit module (11) comprises a substrate (13) and an LED chipset (14) arranged on the substrate (13). The LED chipset (14) comprises at least five LED chips, where the LED chips are in a tight arrangement with each other, and the contour of a light-emitting side of the LED chipset is close to a regular hexagon. The LED chipset (14) comprises LED chips of at least four colors, where the four colors are red, blue, green, and amber. The LED unit module (11) allows for prevention of increased etendue and for uniform mixing of lights.

The invention provides a backlight module which comprises a light source, a light guide plate and reflective sheets, wherein the reflective sheets comprise a first reflective sheet and a second reflective sheet; the first reflective sheet is arranged on the lateral surface of the light guide plate; the second reflective sheet is arranged at the bottom of the light guide plate; the light source is arranged below the first reflective sheet; the first reflective sheet is used for reflecting light emitted by the light source into the light guide plate; and after being scattered by the light guide plate and reflected by the second reflective sheet, the light is emitted out from the top of the light guide plate. Correspondingly, the invention provides a display device which comprises the backlight module. The backlight module provided by the invention has the advantages of thinning, increase of an effective lighting area, shape diversification and the like.

The LED package structure includes a substrate, an LED chip, a plastic package body, and two leading legs. In addition, the LED chip is arranged on the substrate and covered by the packaging plastic body. Moreover, the plastic package body contains a light-converging part and a light-scattering part, in which the light-converging part has a first axis and the light-scattering part has a second axis. In addition, the first axis of the light-converging part intersects the second axis of the light-scattering part. Furthermore, one terminal of each of the two leading legs is electrically connected to the LED chip while another terminal extends out of the packaging plastic body. Because the LED package structure can converge light and scatter light in different directions, the backlight module implementing the LED package structure has the advantage of a shorter light-mixing distance and better light utilization.

The invention discloses an LED-based intelligent color assessment cabinet. A combination of an LED light source and a tungsten lamp is used as a light source for color assessment lighting, and the color assessment light source more excellent in coloring characteristic is obtained by means of combination of spectral power distribution characteristics of the LED light source and the tungsten lamp; since a color filter is arranged in front of the tungsten lamp, more optimized spectral power distribution is obtained to further optimize the coloring characteristics of the color assessment light source. By the aid of light-emitting relative spectral powder distribution data, prestored in a memory unit under drive of different currents or pulse widths, of the LED light source or the tungsten lamp, all types of standard lighting sources can be simulated more accurately, and color assessment realness and reliability are improved.

The invention discloses a diffusion plate with dot-matrix diffusion structures. The dot-matrix diffusion structures are arranged on an out-light surface or an in-light surface of the diffusion plate, and centers of the diffusion structures correspond to light source centers of backlight sources one by one. The diffusion structures include two structures: the first structure includes that the center area of the first diffusion structure is a circular disc, hollow spots arranged in concentric circles are arranged on the circular disc, solid spots arranged in concentric circles are arranged outside the central area, and the first diffusion structure is coated on the solid spots and positions around the hollow spots on the circular disc; the second structure includes that circular rings arranged in concentric circles are distributed in the central area of the second diffusion structure, solid spots arranged in concentric circles are arranged outside the central area, and the second diffusion structure is coated on the circular rings and the solid spot areas. Intensities of diffusion structures on all circles of the first and the second structures become smaller and smaller from the center to the outside.

The invention discloses a backlight module which at least comprises a light source, a light guide plate and a light conduction structure. The light source consists of a plurality of LEDs (Light-Emitting Diodes); each LED is provided with a light extraction surface; the light guide plate is made of transparent light guide material and comprises a light entrance surface and a light extraction surface perpendicular to the light entrance surface; the light conduction structure is made of transparent light guide material, comprises a light entrance surface and a light extraction surface opposite to the light entrance surface, is arranged between the light extraction surface of the light source and the light entrance surface of the light guide plate and fills a gap between the light extraction surface of the light source and the light entrance surface of the light guide plate; the light extraction surface of the light source is connected with the light entrance surface of the light conduction structure; the light extraction surface of the light conduction structure is connected with the light entrance surface of the light guide plate; and light emitted by the light source is diffused by the light extraction surface of the light guide plate. According to the invention, the design of a narrower border is realized; and meanwhile, a light mixing distance at the light entrance side is not changed, an effect of uniformly mixing light is still achieved under the condition of reducing the number of the LEDs, and light entrance coupling efficiency between the light source and the light guide plate of the backlight module is strengthened.

The invention discloses a combined lens capable of mixing light evenly and adjusting light intensity angles and based on multiple colors of red green blue and white (RGBW). The combined lens comprises a lamp body and a colorful light source arranged at the bottom of the lamp body. The lamp body comprises a condensing lens group and a dimming lens group. The distance between the condensing lens group and the dimming lens group is adjustable. The condensing lens group comprises a total internal reflection lens and an astigmatism compound eye array. The dimming lens group comprises a condensation compound eye array composed of a plurality of concave lenses and can conduct distributed and even processing on light from the total internal reflection lens. Due to the fact that the distance between the astigmatism compound eye array and the condensation compound eye array is adjustable, even light mixing of the light source is achieved, and by adjusting the distance between the astigmatism compound eye array and the condensation compound eye array, dimming from narrow angles to wide angles of a lamp is achieved. For a multi-lamp-bead RGBW light source, under the condition that each light-emitting diode (LED) lamp bead controls current independently, almost all colors of internal commission on illumination (CIE) color coordinates can be obtained after light is mixed.

The invention discloses a backlight module having a light complementary color area. The module is provided with a light guide plate having a light entry side and a light exit side which is vertical to the light entry side, and a linear light source which is adjacent to the light entry side of the light guide plate for irradiating the light entry side and comprises mutually interlaced linearly arranged first wavelength light-emitting diodes and second wavelength light-emitting diodes, wherein the wavelength of the first wavelength light-emitting diode is different from the wavelength of the second wavelength light-emitting diode and the lights form white light beam after being mixed. The module further comprises at least two light complementary color areas at the end or around the side light-emitting diodes so as to uniformly mix the light at the end of the light-emitting diodes. The light complementary color areas complement white light to the end light-emitting diodes. The backlight module having a light complementary color area of the invention can uniformly mix the light beam at the end of the light source.

A LED lamp and a light effect improving method thereof. A bulb shell (2) is covered on LED beads (3), and is mounted in a reflection cup (1). The bulb shell (2) is used for processing a primary optical process for the light emitted by the LED beads (3). The reflection cup (1) is used for processing a secondary optical process for the light which is subjected to the primary optical process performed by the bulb shell (2). By the functions such as refraction, scattering, diffusion and the like of the bulb shell (2), the primary emergent light emitted from the LED beads (3) is subject to the primary optical process such as mixing, scattering and so on, so as to realize the treatment effect that the light is emitted from the three-dimensional surface of the bulb shell (2). The reflection cup (1) performs the secondary optical process, so as to reflect the scattering light within a certain angle range.

This invention discloses a sort of back-light module, and it consists of the printed circuit board, several light-emitting diodes, and the light board. The several light-emitting diodes which is arrayed in the array manner or the random array is fixed in the printed circuit board in order to offer the lighting power which is offered to the back-light module. The light board which has the in-light face and the out-light face is fixed in several light-emitting diodes, the in-light face of the light board is the flat curved face or the curved face which has the random curvature, the out-light face of the light board has several flute which makes the light power which is offered by the light-emitting diode to reach the total reflection in the light board effectively and after the power is emitted by the out-light face of the light board it can be mixed in the light board equably in order to make the light power which is emitted by the out-light face of the light board to have the symmetrical high light energy.

The invention discloses an LED display module and a manufacturing method thereof. The manufacturing method comprises the steps: providing a substrate, and enabling LED chips to be disposed on the substrate in an inverted manner; forming a black film layer between the LED chips, and leveling the black film layer through a plasma leveling technology, wherein the black film layer is used for preventing optical crosstalk between the LED chips; and forming a light mixing layer on the black film layer and the LED chip, wherein the light mixing layer is used for protecting the LED chip and the blackfilm layer and providing a light scattering effect for the LED chip. According to the invention, a black film layer is arranged between LED chips, and a light mixing layer is arranged on the black film layer and the LED chip, so that the defects in the prior art can be overcome; and particularly, after the black film layer is flattened through a plasma flattening technology, the ink color betweenunit plates / modules is more uniform and consistent, the colors and brightness of different areas of a single unit plate / module are more uniform, and light mixing is more uniform during side observation.

An LED unit module, a light-emitting device, and a light source system. The LED unit module comprises a substrate and an LED chipset arranged on the substrate. The LED chipset comprises at least five LED chips, where the LED chips are in a tight arrangement with each other, and the contour of a light-emitting side of the LED chipset is close to a regular hexagon. The LED chipset comprises LED chips of at least four colors, where the four colors are red, blue, green, and amber. The LED unit module allows for prevention of increased etendue and for uniform mixing of lights.

The invention relates to an LED light mixing device. The existing LED light mixing device does not conform to the tendency of thin appearance, and has low light outlet rate. The LED light mixing device of the invention comprises an illumination module. The invention is characterized in that the LED light mixing device also comprises a light guide plate, the light illumination module comprises a base plate, at least two kinds of single-color LED light sources are arranged on the base plate, the illumination module is arranged on the side surface of the light guide plate, the illumination direction of the LED light source faces the light guide plate, uniform notches or reflecting net points are formed on a lower panel of the light guide plate, and a diffusion film is arranged above the upper panel of the light guide plate. The invention reduces the integral thickness of the light mixing device, the emitting direction of partial LED light sources is changed through the light guide plate with the net points or the notches at the lower panel, the loss caused by light ray emitting from the lower panel of the light guide plate is avoided, and the light outlet rate is improved. Partial light rays are emitted out from the upper side of the light guide plate after being reflected for many times in the light guide plate, the light mixing distance of the LED light source is effectively increased in the period, and the light mixing effect is more uniform.

The invention discloses a package structure for a light-emitting diode. The package structure comprises a substrate, a light-emitting diode chip attached to the substrate, and a package body comprising fluorescent powder, wherein the package body has a light scattering structure; the light scattering intensity of the light scattering structure and the light intensity in each region of the package body are increased or decreased homodromously; and the density of the fluorescent powder and the light intensity in each region of the package body are increased or decreased homodromously. Therefore, the package structure for the light-emitting diode has the light scattering structure; under the light scattering action of the light scattering structure, the light transmission brightness of a central point of the package structure for the light-emitting diode and the light transmission brightness around the package structure for the light-emitting diode are basically the same, and the emergent light of the package structure for the light-emitting diode tends to be uniform; moreover, the density of the fluorescent powder is increased or decreased homodromously according to the light intensity, so that the mixed light of the package structure for the light-emitting diode tends to be uniform.

The invention discloses an LED white light illuminating bulb which comprises a bearing substrate, a plurality of red light LED packaging elements, a plurality of green light LED packaging elements, a plurality of blue light LED packaging elements, a shield-type light housing and a conductive element, wherein the red light LED packaging elements, the green light LED packaging elements and the blue light LED packaging elements are arranged on the bearing substrate, and each red light LED packaging element, each green light LED packaging element and each blue light LED packaging element are respectively provided with a red light emitting LED wafer, a green light emitting LED wafer and a blue light emitting LED wafer, a covering body which respectively covers the red light LED wafer, the green light LED wafer and the blue light LED wafer and a plurality of diffusion particles distributed in the covering body; the shield-type light housing is connected to the periphery of the bearing substrate so as to close the non-emitting directions of the red light LED packaging elements, the green light LED packaging elements and the blue light LED packaging elements; and the conductive element is connected to the shield-type light housing, electrically connected with the bearing substrate and used for switching an external power supply onto the red, the green and the blue light LED wafers. The LED white light illuminating bulb has the advantages of even light mixing, easy color temperature adjustment and high rendering.

The invention discloses a low space color cast LED packaging structure comprising a substrate, an LED chip, a phosphor body and a lens, wherein the LED chip is arranged on the substrate, the phosphor body comprises a positive hemisphere body and an extending part which is formed by extending the lower part of the positive hemisphere body, the phosphor body is arranged on the substrate and covers the LED chip, and the lens is arranged at the outer side of the phosphor body in a covering manner and therefore light extraction efficiency can be improved. Through an embodiment of the low space color cast LED packaging structure, long perpendicular distance is enabled between the LED chip and the top part of the phosphor body the arrangement of the extending part, long optical length of forward direction light of the LED chip is realized, and therefore space color cast can be lowered.

A light-emitting diode encapsulating method comprises the following steps that a substrate with a circuit structure is provided, at least one reflector cup is arranged on the substrate, at least one light-emitting diode chip is arranged on the substrate and in the reflector cup, and the light-emitting diode chip is electrically connected with the circuit structure; an encapsulating material is provided, the encapsulating material comprises a transparent layer and a fluorescent layer, and the hardness of the transparent layer is smaller than that of the fluorescent layer; the encapsulating material and the reflector cup are pressed together through a mould, part of the transparent layer is squeezed into the reflector cup and combined with the reflector cup, and the fluorescent layer is arranged outside the reflector cup and covers the transparent layer; the mould is removed, and the encapsulating material is solidified. By means of the light-emitting diode encapsulating method, the transparent layer can be easily combined with the reflector cup in the pressing process; meanwhile, the fluorescent layer is maintained to be of a layered structure with the uniform thickness, fluorescent powder is evenly distributed, and thus the light blending of a light-emitting diode is made to be even. The invention further provides the light-emitting diode.

The invention discloses a laser light source device and a projection system. The laser light source device comprises a laser and a light combining assembly, wherein the laser comprises a first laser chip, a second laser chip and a third laser chip which emit laser with different wavelengths, the laser chips with the same color are arranged into a laser chip group, and the laser chips are arranged into a matrix; and the light combining assembly is positioned on the light emitting side of the laser and is used for enabling the laser beams with different colors emitted by each laser chip group to be converted and beam to the same position through a light path and then to be emitted in a set direction. The light combining assembly comprises a reflector and a light combining mirror, the laser beams are subjected to light path turning through the reflector, the laser beams with different colors are combined through the light combining mirror, and finally the laser beams emitted by the laser chip groups are combined to the same position, so that the positions of laser spots with different colors are overlapped, the spot size is reduced, and the lasers with different colors are mixed more sufficiently.

The invention discloses a light guide plate and backlight module. The light guide plate includes a main body, a plurality of first micro-structures and a plurality of second micro-structures. The main body includes an incident surface, an emergent surface and a reflecting surface. The reflecting surface is opposite to the emergent surface. The incident surface connects the emergent surface and the reflecting surface. The first micro-structures are arranged on the emergent surface or the reflecting surface, and are arranged along a first extending direction. The second micro-structures are arranged on the emergent surface or the reflecting surface, and are arranged along a second extending direction. The second micro-structures and the first micro-structures are located on the same plane and intersect. Each second micro-structure is in a single strip form, and the width of each second micro-structure gradually decreases from one end close to the incident surface to the other end away from the incident surface.

The invention relates to a lens, and especially relates to a lens for lighting. The lens comprises a curved surface part, an outer periphery and a toothed grain part. The curved part in the center region includes at least one curved surface, and the outer contour of the curved surface part is non-circular. The outer periphery surrounds the curved surface part. The toothed grain part between the curved surface part and the outer periphery includes a concave-convex grain area. The concave-convex grain area is provided with a concave-convex grain surface which extends outward around a center, and the center of the concave-convex grain area is in the center region. The beneficial effect is that through combination of the curved surface part and the toothed grain part, a uniform light mixing effect is achieved, and wide-angle light can be converged to improve the intensity of illumination in the center. The curved surface part can improve the light output efficiency and reduce light loss.

The invention discloses a uniform-illumination reflecting cup. The reflecting cup is provided with a cup body which is formed by connecting and arranging at least three planar reflecting plates in turn in a circle, wherein the diameter of the front end of the cup body is greater than that of the back end of the cup body. The uniform-illumination reflecting cup provided by the invention has uniform light distribution effect and high lamp illumination efficiency and adapts to point light sources and surface light sources.

The invention provides a color temperature-adjustable LED light source, which comprises a heat conduction substrate, a first LED chip set and a second LED chip set, wherein the first LED chip set andthe second LED chip set are respectively connected with different external circuits. The heat conduction substrate is provided with a reflection cavity configured to penetrate through the heat conduction substrate. The center of the top surface of the heat conduction substrate, corresponding to the reflection cavity, is provided with a first groove. The first LED chip set is arranged in the firstgroove. A first fluorescent colloid is arranged in the first groove, and the first fluorescent colloid covers the first LED chip set. The top surface of the heat conduction substrate, at the peripheryof the first groove, is provided with the second LED chip set. A second fluorescent colloid is arranged in the reflection cavity. The second fluorescent colloid covers the first fluorescent colloid and the second LED chip set. The invention further provides a manufacturing method of the color temperature-adjustable LED light source. Based on the structure and the manufacturing method, the color temperature-adjustable LED light source, uniform in light mixing effect, is realized. The regional distribution of the fluorescent colloid of a traditional color-adjustable LED light source is in the horizontal direction is converted into the regional distribution thereof in the vertical direction. Therefore, the optical axes of light-emitting areas with different colors are overlapped, and the light mixing effect is more uniform.

The invention belongs to the technical field of lighting equipment, and discloses a mining lamp with a large light spot effect. The mining lamp comprises a reflector which is of a spherical surface orbowl-shaped structure. Multiple layers of honeycomb-shaped reflection faces are arranged on the inner wall of the reflector. The honeycomb-shaped reflection faces of all the layers are the same in number, and the reflection faces are subjected to mirror surface treatment. Through the manner that the honeycomb-shaped reflection faces of all the layers are the same in number, the light beam anglesobtained after light rays emitted by an LED light source are reflected by the honeycomb-shaped reflection faces on the inner wall of the reflector are the same, the irradiation range is enlarged, therelatively soft large-light-spot effect is generated, and accordingly people can have a comfortable feeling when working under the light rays. Mirror surface treatment is conducted on the reflection faces, directional mirror surface reflection of the light rays irradiated to the treated surfaces through the LED light source is achieved, and uniform light mixing is achieved; and the beneficial effects that light energy losses are few, the reflected light effect is high, the reflected light ray direction is controllable, and the light source utilization rate is high are achieved.

The invention provides a full-spectrum CSP packaging light source. A high-color temperature white CSP light source, a low-color temperature white CSP light source, a blue CSP light source, a green CSP light source and a red CSP light source are packaged on a packaging bracket at a certain number ratio; the high-color temperature white CSP light source and the low-color temperature white CSP light source can adjust a color temperature and the light emitting intensity as main light sources, and the blue CSP light source, the green CSP light source and the red CSP light source supplement a missing band as single-color light filling sources, so that the overall light source is high in saturability and the spectrum continuity is good. The high-color temperature white CSP light source and the low-color temperature white CSP light source are alternately packaged on the packaging bracket on the periphery of a light filling source region, so that the full-spectrum CSP packaging light source has a uniform light mixing characteristic in color temperature adjustment of the single-color light sources in the light filling source region or the high-color temperature white CSP light source and the low-color temperature white CSP light source, and has the advantages of a good light effect, excellent light quality and an adjustable color temperature.

The present invention discloses a high-color gamut direct-lit backlight module with uniform light mixing. The high-color gamut direct-lit backlight module comprises a metal back plate, a PCB plate group, an LED lamp bead, a lens, a reflection sheet, a diffusion plate, a diaphragm and a liquid crystal panel. The PCB plate group is fixed on the metal back plate; the PCB plate group is respectively provided with a PCB plate 1 and a PCB plate 2; and the reflection sheet is arranged on the upper surface of the metal back plate. The high-color gamut direct-lit backlight module provided by the present invention has the beneficial effects that, by using the blue and green dual-chip matching the red phosphor, the high-color gamut direct-lit backlight module is simpler than the R, G and B three-color LED in structure, and the process is relatively easy to implement. According to the high-color gamut direct-lit backlight module provided by the present invention, a symmetrical pad is used to fix the blue chip and the green chip therein, a part of the blue light excites the red phosphor, and then the blue light and the green light emitted by the chip, and the red light generated by exciting thephosphor are combined to obtain a high-color gamut LED direct-lit backlight source; and by using the symmetrical pad bracket, the produced LED lamp bead can be used in the direct-lit backlight moduleto achieve a uniform light mixing effect, at the same time, the heat dissipation can be increased, and the reliability of the LED lamp bead can be improved.

The invention discloses an LED laminated light source module capable of achieving light color adjustment. The light source module comprises a plurality of layers of substrates and a plurality of LED light-emitting chips. A step-shaped through hole is formed in the center of each layer of substrate in the multiple layers of substrates, and a circuit layer is uniformly distributed on the surface of each layer of substrate. Each LED light-emitting chip is manufactured in the step-shaped through hole of the corresponding substrate and electrically connected with the circuit layer on the surface of the corresponding substrate. The LED laminated light source module capable of achieving light color adjustment has the beneficial effects of being adjustable in light color, small in area, even in light emitting, diversified in emitted light color and long in service life and facilitating light mixing.

The embodiment of the invention discloses a backlight module, a backlight module manufacturing method and a display device. The backlight module comprises a substrate; a light emitting diode arranged on the substrate; a semi-transparent reflection layer arranged on the substrate, wherein the semi-transparent reflection layer comprises a plurality of semi-transparent reflection units, each semi-transparent reflection unit comprises at least one transparent bearing film layer and at least one semi-transparent reflection film layer, and the semi-transparent reflection units are arranged around the light emitting diode; and a packaging layer which covers one side, far away from the substrate, of the semi-transparent reflection layer. The backlight module provided by the embodiment of the invention has a light and thin structure, and can obtain an area light source with uniform light mixing.

The invention discloses an LED white-light illuminating street lamp comprising at least one bearing base board, a plurality of red-light LED packaging elements, green-light LED packaging elements and blue-light LED packaging elements, wherein all LED packaging elements are arranged on the bearing base board; the bearing base board is arranged on a lamp holder, and the lamp holder can be arranged on a lamp post; and light beams emitted by the LED packaging element with various light colors can be uniformly mixed into white light so that the breadth and the brightness of illumination are enhanced. In addition, the color temperature of the white light can be easily adjusted by adjusting the quantity and the setting positions of the LED packaging elements with various light colors; and moreover, the LED white-light illuminating street lamp also has high color rendering performance.

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.