198results about How to "Increase the light output angle" patented technology

The invention discloses an LED (Light Emitting Diode) lamp tube, which comprises a glass tube, lamp caps arranged at two ends of the glass tube as well as an LED lamp strip arranged in the glass tube, wherein the inner wall of the glass tube is coated with a light increasing and heat radiating film; and the LED lamp strip is fixedly adhered to the inner wall of the glass tube through a high heat conduction bonding adhesive. The light increasing and heat radiating film is an aluminum-coated layer, or a frosted heat conduction light increasing adhesive layer or a nano adhesive layer capable of increasing light and radiating heat. The LED lamp strip comprises a substrate, wherein a plurality of LED light sources are welded on the substrate, or an integrated light source consisting of an LED chip is packaged on the substrate; and a driving power supply module is also arranged on the LED lamp strip. According to the LED lamp tube disclosed by the invention, the light emitting efficiency, the light emitting angle and the illumination area of the LED lamp tube are increased; the problems of glare and point light existing in the LED lamp tube are solved; heat generated by an LED is transmitted to the whole glass tube through the substrate of the LED, so that the heat radiating area is greatly increased and the heat increasing speed of the LED lamp tube is increased; the LED lamp tube can be applied to a lamp holder of a traditional fluorescent lamp, and thus the generality of the LED lamp tube is greatly improved; and the replacement and use costs are reduced.

An LED chip U-shaped pipe heat-dissipating energy-saving lamp comprises a U-shaped light-emitting heat-dissipating component, a main radiator power source lamp base component and a power source. The U-shaped light-emitting heat-dissipating component comprises a U-shaped dispersing shade, a lamp panel and a U-shaped heat-conducting tube. The U-shaped dispersing shade is bonded with the U-shaped heat-conducting tube, the lamp panel is welded with the power source, and the U-shaped heat-conducting tube is connected with the main radiator power source lamp base component. The invention further discloses a manufacturing method of the LED chip U-shaped pipe heat-dissipating energy-saving lamp. The manufacturing method is characterized by comprising the following steps of locking, welding, lighting testing and gluing. Optical design and special U-shaped heat dissipation design are integrated in the LED chip U-shaped pipe heat-dissipating energy-saving lamp, and the 180-degree light-emitting effect and better heat-dissipating performance are realized.

The invention discloses a display structure for eliminating seams at the edge of a flat panel display. A flexible circuit board is arranged on the upper part of a metal frame and its side surfaces, and the flexible circuit board extends along the inner side of the metal frame to the flat panel display. Inside, and connected with the internal electrical appliances of the flat panel display; the luminous body is fixedly connected to the flexible circuit board located on the upper part of the metal frame, and forms a light strip with this part of the flexible circuit board; on the light strip A lampshade is arranged on the outside; the lampshade is used as the display surface of the display structure, and together with the display area of ​​the flat panel display screen, the original input video image is displayed. Correspondingly, the present invention also provides an integrated structure of multiple flat display screens using the display structure provided by the present invention. The technical solution provided by the invention can significantly integrate the splicing seams during the splicing of flat panel display screens, and truly achieve a "seamless" splicing effect.

The invention discloses a light emitting diode (LED) lamp optical lens, which comprises a collimation lens, wherein the side face of the collimation lens is a total reflection face; a light outlet face of the collimation lens is provided with a sheet lens; the sheet lens consists of concave faces of a plurality of rectangular concave micro lenses; and the collimation lens is provided with a refraction groove at an end plane opposite to the light outlet face of the collimation lens. Through the combination of the collimation lens and the sheet lens, light which passes through the LED lamp optical lens is softened and distributed uniformly and does not glare and the light source illumination range is expanded.

The invention discloses a LED tunnel light. It includes shell and lighting module. The former includes lamp body fixed structure. The latter includes lens shade formed by lens array which formed by astigmatism convex and condense edge. The astigmatism includes light incidence and emergent planes. The lamp body fixed structure includes fixed frame and fixed plated surface. The invention can control the light distribution to make faculae form rectangle, have even illumination in effective area, little or no parasitic light out the area.

A light emitting device comprises a light emitting module and a composite lens. The composite lens is arranged above the light emitting module, and the light emitting module includes a first lens unit, a second lens unit, a third lens unit and a fourth lens unit. The first lens unit radiates a first group of lights, which are emitted by the light emitting module, outward from the first lens unit in a total reflection way. The second lens unit radiates a second group of lights, which are emitted by the light emitting module, through the third lens unit and outward from the fourth lens unit in a total reflection way. The third lens unit radiates a third group of lights, which are emitted by the light emitting module, outward from the fourth lens unit in a total reflection way. The fourth lens unit radiates a fourth group of lights, which are emitted by the light emitting module, outward from the fourth lens unit in a total reflection way. Thus, the light emitting angle is improved, thereby providing a light emitting device with high angle light distribution. Besides, the invention also discloses a composite lens.

A luminaire comprises a lamp holder, a first light-emitting module, a second light-emitting module, a light guide, and a lamp cover. The lamp holder has a top portion. The top portion includes a first upper face and a platform projecting upwardly from the first upper face. The platform has a second upper face at a top end thereof. The first light-emitting module is disposed on the first upper face and around the platform. The second light-emitting module is disposed on the second upper face. The light guide is disposed around the platform and on the first light-emitting module. The lamp cover is disposed on the lamp holder for covering the first light-emitting module, the second light-emitting module, and the light guide.

The application discloses a flexible display panel and a display device. The flexible display panel comprises a luminous layer set, a scattering layer arranged on the surface of the luminous layer setand a thin-film packaging layer arranged on the surface of the scattering layer far away from the luminous layer set, wherein the scattering layer comprises an organic material main body and scattering particles doped to the organic material main body. Through the manner, the flexible display panel and the display device in the application can improve the flexibility of the thin-film packaging layer as well as improve the external quantum efficiency.

The invention provides a wide-angle lens used for uniform near-field illumination. The wide-angle lens comprises an inwards concave face, an outwards convex face, a bottom face and a positioning support. The inwards concave face is a light source incident face, is a staged discontinuous curved face and is used for diverging incident light. The outwards convex face is a light emitting face and is determined through distribution of emitted light intensity. The emitted light intensity can be obtained according to the energy conservation formula, and the outwards convex face controls the direction of the emitted light. The bottom face is a reflective face. The lens can effectively increase the light emitting angle of light emitting diodes and improve target surface edge illuminance. By means of the lens, the use number of the light emitting diodes and the distance between the lens and a target surface can be reduced, production cost is reduced to a certain extent, and illuminance uniformity of the target surface can be guaranteed.

The invention relates to an LED backlighting structure provided with a converted light source and using a free-form surface reflector, which comprises a backlighting cavity (4) and an LED light source (1), the bottom of the backlighting cavity (4) is a reflecting surface (2) of a free-form surface, the backlighting cavity (4) is a sealed cavity which is composed of the reflecting inner wall thereof, the reflecting surface (2) of the free-form surface at the bottom and a diffuser film (5) arranged on the top thereof, the diffuser film (5) is provided with a brightness enhance film and other optical films and an LCD panel; the LED light source (1) is fixed in the backlighting cavity (4) through a light source support bracket (3) and is positioned below the diffuser film (5) and right above the axis of the reflecting surface (2) of the free-form surface at the bottom of the backlighting cavity (4), and the emergent direction of light deviates from the LCB panel. The structure has the advantages of large light emergent angle of the light source, small thickness of the whole backlighting system and high whole light effect.

The invention discloses an LED (Light Emitting Diode) chip. The LED chip comprises a PSS (Patterned Sapphire Substrate), a buffer layer, an N type semiconductor layer, a luminous layer, a P type semiconductor layer, a transparent conducting layer and a protection layer which are sequentially arranged along the axial direction. The invention also provides an LED chip manufacturing method. According to the LED chip, a groove which leads to the PSS is arranged between an N electrode and a P electrode of the chip, current insulating layers are formed between the N electrode and the P electrode due to the groove, and accordingly gathering of currents between the N electrode and the P electrode is blocked, the LED chip plays a role in blocking the currents, meanwhile the currents transversely expand to other areas, gathering of the currents is reduced, diffusion of the currents is uniform, the thermal stability of the LED chip is improved, and the service life of a device can be prolonged.

The invention provides an LED (light-emitting diode) lamp filament which comprises a bottom plate, a cover plate, LED chips and an electrode, wherein the LED chips are positioned between the bottom plate and the cover plate, fixed onto the bottom plate, connected in a routing manner and connected with the electrode, and the bottom plate and the cover plate are combined together through an adhesive and are organic transparent plates doped with fluorescent powder. The LED lamp filament has the advantages of peripheral light emission, high light intensity, fine heat diffusivity, long service life, low cost and the like.

An LED lamp with a large light emission angle comprises a lamp cap, a bulb shell and a plurality of light source panels. The bulb shell covers the top end of the lamp cap. Each light source panel comprises a substrate and an LED light source arranged on the outer side face of the substrate. The bottom edge of each substrate is fixedly arranged at the top of the lamp cap. An obtuse angle is formed by the outer side face of each substrate and the top of the lamp cap. The substrates are arranged around the axis of the lamp cap by equal angles. The LED lamp with the large light emission angle has the advantages of simple structure and convenience in assembly.

The invention discloses an LED chip and a manufacturing method thereof. The LED chip comprises a substrate, a buffer layer, an N-type GaN layer, a multi-quantum well layer and a P-type GaN layer whichare arranged in turn. The P-type GaN layer is provided with a current barrier layer and a current spreading layer covering the current spreading layer. The current spreading layer is provided with anAl2O3 particle layer. The Al2O3 particle layer, the current spreading layer and the current barrier layer are provided with electrode holes. The LED chip is etched to form steps and the N-type GaN layer is exposed. The Al2O3 particle layer is provided with a P-type electrode. The step surface of the N-type GaN layer is provided with an N-type electrode. The area which is arranged on the upper surface of the LED chip and outside the upper surface of the metal electrode is provided with a transparent insulating layer. The Al2O3 particle layer is arranged between the current spreading layer andthe transparent insulating layer so that the light extraction angle of the chip can be effectively increased and the light extraction efficiency of the chip can be enhanced and the brightness of the LED chip can be enhanced. The Al2O3 particle layer is prepared through the rapid annealing process after evaporation of the Al target material and formation of the pure aluminum layer on the current spreading layer so that the manufacturing method is simple.

The invention relates to the LED packaging technical field, and relates to a quantum dot layer reflection type LED packaging device and a light fixture; a fluorescent glue layer, a heat insulation glue layer, a quantum dot glue layer and an obstruction water oxygen layer are arranged in sequence on the top of the LED chip; the heat insulation glue layer is arranged between the fluorescent glue layer and the quantum dot glue layer so as to protect the quantum dots; the heat insulation glue layer is arranged between the fluorescent glue layer and the quantum dot glue layer, and a reflection material used for reflecting lights is arranged in the quantum dot glue layer; the reflection material can reflect lights so as to improve the LED chip light extraction angle, so the lights can be radiated in the maximum angle; the reflection material can reflect the lights so as to split the central light column, so the lights can be distributed more evenly, thus improving the illumination effect; the light fixture comprises a lamp holder, a lamp pole, a lamp cap and the quantum dot layer reflection type LED packaging device; the light fixture has said advantages when compared with existing lamps.

The invention discloses an optic element and a lighting device comprising the optic element. The optic element matches with a light emitting diode in combination, thereby working as an illuminating light source. The optic element includes a light-transmitting body including a light guide post and an extending part. The light guide post is provided with a top face and a bottom face. The bottom face is provided with a groove. The extending part extends outward from the periphery of the top face. The tail end of the extending part is provided with a light outgoing face. The light emitting diode is arranged in the groove and emits light beams to the optic element. The extending part guides the light and enlarges the outgoing angle of the light beams.