66results about How to "Guaranteed light efficiency" patented technology

Disclosed is an intelligent solar tracking control system based on single chip microcomputer control. A photoelectric tracking principle and a sensor locating and tracking mode are adopted, a photoelectric sensing module conducts digital-to-analogue conversion on collected electric signals and then sends the signals to a single chip microcomputer to conduct comparative judgment, and the sunlight can be tracked through a hydraulic driving module. A real-time communication module is used for timing years, months, days, hours, minutes and seconds, and for periodically detecting and compensating the tracking accuracy of the system. A wind power sensing module can be used for monitoring strong wind severe weather and feeding the information back to the single chip microcomputer to achieve automatic shutdown protection, so that the wind-resistant performance of the system is guaranteed. An LCD display module and a wireless communication module are used for achieving human-computer interaction and real-time communication, the operating modes of the system can be switched, the motion parameters of the system can be adjusted, the environmental parameters of the system can be set, artificial intelligence and automatic control can be tightly combined, and therefore the system can maintain good stability under different regions and environments.

The invention relates to a multifunctional street chair with an LED illuminating lamp, which belongs to the field of the outdoor public device. The street bench consists of a chair assembly, a lamp post assembly, solar panels, a wind generator, the LED illuminating lamp, a storage battery, a wind-power intelligent controller, a control circuit, a sanitary bucket and an LED advertisement screen. The chair assembly comprises chair legs, a chair seat and a chair back. The lamp post assembly consists of two left and right lamp posts and three upper, middle and lower transverse beams fixed between the two lamp posts. The two lamp posts are arranged in a shape of Chinese word character 'men'. The solar panels are arranged on corner fixed plates at the top ends of the two left and right lamp posts. The wind generator is arranged on the middle transverse beam. The street chair of the invention can be arranged on occasions, such as the garden in the city center, the courtyard, the park, the roadside and the like, has unique appearance, is graceful, green, environment-friendly, simple, convenient and practical, and not only can be convenient for people to have a rest, but also can be used for night illumination.

The invention relates to a novel high-power LED light source and an implementation method of the novel high-power LED light source. An existing LED light source is poor in lighting effect, poor in heat dissipation and high in cost. The novel high-power LED light source is composed of a ceramic substrate, electronic dam glue, high-power LED chips, fluorescence glue, silica glue, key alloy lines, high thermal conductive silver paste and silver paste. The ceramic substrate is in a sheet shape, installation holes are formed in the edges of the ceramic substrate, superfine small holes are formed in the ceramic substrate and are filled with the silver paste in a pouring mode, and the electronic dam glue is arranged on the ceramic substrate; the high-power LED chips are bonded within the range of the electronic dam glue on the ceramic substrate; the key alloy lines are connected with electrodes of the high-power LED chips and the ceramic substrate; the florescence glue is arranged on the surfaces of the high-power LED chips on the ceramic substrate, and one layer of silica glue is arranged on the surface of the florescence glue. The implementation method of the novel high-power LED light source comprises the steps: punching the holes, filling the holes with the silver glue, arranging the electronic dam glue, fixing the high-power LED chips, connecting the key alloy lines, coating the fluorescence glue, and pouring and solidifying the silica glue under the high temperature. The novel high-power LED light source is easy to assemble and disassemble, safe, waterproof and long in service life, energy is saved and popularization is facilitated.

The invention discloses a solar street lamp dust removal device and a using method thereof, and belongs to the technical field of solar street lamps. The solar street lamp dust removal device comprises a vertical rod, wherein the outer wall of the vertical rod is connected with a support plate, the outer wall of the support plate is connected with a power supply mechanism, the bottom of the support plate is connected with a lampshade, and the inner wall of the lampshade is connected with a bulb; a groove is formed in the support plate, the inner wall of the groove is connected with a motor, the output end of the motor is connected with a rotating shaft, and the end, far away from the motor, of the rotating shaft is connected with a first gear; and the outer wall of the first gear is engaged with a second gear, the inner wall of the second gear is connected with a rotating shaft, the rotating shaft is rotatably connected in the vertical rod through a bearing, the outer wall of the rotating shaft is connected with a connecting rod, and the outer wall of the connecting rod is connected with a rotating ring. According to the dust removal device, the solar street lamp can be automatically cleaned, the cleaning of the solar street lamp is ensured, the attachment of mosquitoes and dust is avoided, the luminosity of the solar street lamp is ensured, and the lighting efficiency of the solar street lamp is improved.

The invention discloses a large-size light guide plate. A plate body is equally divided into four parts. Silk-screen lattice points on the plate body are divided into four point units. The reflecting face of each plate part is divided into an L-shaped area and a large rectangular area. The L-shaped area is located at the connection of the plate part and the adjacent plate body. The large rectangular area is divided into a first right triangle area and a second right triangle area. Each point unit comprises silk-screen graded area in the first right triangle area, a silk-screen snap in the second right triangle area and an invariable area in the L-shaped area. Lattice points in the graded area and the snap area are arrayed and distributed on the light entering direction of two sides; wherein, diameters of the lattice points are increased gradually along the light entering direction of the two sides, and change values of the graded area are smaller than that of the snap area. Diameters of the lattice points in the invariable area are increased gradually on the direction of the light entering direction of the contacting side face of each area, and the diameters of the lattice points are constant on the direction of the light entering direction of the non-contacting side face. By the aid of the large-size light guide plate, light irradiating effect and light irradiating efficiency are guaranteed.

The present invention discloses an LED chip and a preparation method thereof. The LED chip is characterized in that an N type GaN layer, an active layer, and a P type GaN layer are oderly formed on a substrate, a metal reflective layer is deposited on the surface of the P type GaN layer, a protection metal layer is formed at the surface of the metal reflective layer, the protection metal layer is multi-layer metal Ti and alloy metal TiW layer and is a TiW/Ti structure or TiW/Ti/TiW structure, a partial area of the surface of the protection metal layer is etched with a depth to expose N type GaN, and an N type electrode hole is formed. By using the LED chip prepared by using the technical scheme provided by the invention, the metal reflective layer can be protected well, the light emitting efficiency and service life can be ensured, the stress is controlled well, the cost is low, the etching process is mature, and the operation is convenient.

The invention discloses a light supplementary lamp intelligent control system for a greenhouse. The light supplementary lamp intelligent control system mainly comprises the following modules: a photosensitive sensor, a temperature sensor, a time controller and a storage control module. The light supplementary lamp intelligent control system adopts a modular design, realizes intelligent turning onand off of an artificial light source in the greenhouse through serialization among the modules. The light supplementary lamp intelligent control system is mainly used for controlling various kinds oflight supplementary lamps of the greenhouse, and automatically provides the optimal light supplementary on and off scheme for the greenhouse after various parameters of the system requiring light supplementary are set, thereby solving the problems of insufficient light supplementary, excessive light supplementary, invalid light supplementary and the like of crops in the greenhouse, guaranteeing the light supplementary efficiency of the light supplementary lamp to the greatest extent, and saving labor and electric energy. The light supplementary lamp intelligent control system has the advantages of simple operation, high practicability, low cost and the like, and can be widely used in the field of greenhouses requiring artificial light supplementary.

The present invention relates to a prism device 100 for a projector, the prism device comprising a light source and a prism box 3, the prism box comprising first, second, third and fourth surfaces, S1-S4 and an original light L from the light source entering the prism box through the first surface, wherein the prism device further comprises an optical path adjusting means 10 and at least one light conversion means (phosphor wheel) 5 provided downstream from at least one of the first, second, third and fourth surfaces, the optical path adjusting means is configured to guide a first part of the original light through at least one of the second, third and fourth surfaces to the light conversion means, and enable a second part of the original light to emerge through at least one further surface of the second, third and fourth surfaces as an emergent surface, and is configured to guide a converted light Lll from the light conversion means to emerge in a direction parallel to an emergent direction passing through the emergent surface, and guide at least a part of unconverted original light from the light conversion means to emerge in a direction parallel to an emergent direction passing through the emergent surface.

The invention relates to an anti-dazzle LED illuminating lamp and a reflection structure thereof. The LED illuminating lamp comprises a reflector and a LED light source which is positioned at the bottom of the reflector; wherein, a beam splitter which can divide a light beam emitted from the LED light source into a transmitted light beam and a reflected light beam between which the light intensity ratio is predetermined; the reflected light is reflected again by the reflector to illuminate together with the transmitted light. According to the invention, the beam splitter is employed to decrease the center intensity of the light source of the lamp, then the reflector is employed to distribute light beams, so that not only can the objective of dazzle prevention be realized to allow people to feel comfortable without being dazzled when they stare directly at the LED illuminating lamp, but also the illumination efficiency of the lamp can be ensured, meanwhile, the integral lamp can have a compact structure.

The invention discloses a cutting method for reducing the cutting loss of an LED chip. The method comprises steps of firstly carrying out the half-cutting of a P surface of the chip, carrying out thetesting through a testing machine, and facilitating the output of photoelectric parameters, such as brightness, voltage and wavelength, of the chip; coating photoresist on the P surface of the chip byusing a spin coater to form a shielding film, exposing and developing the P surface of the chip, and corroding and exposing a cutting channel; coating photoresist on the N surface of the chip to protect the metal on the N surface and facilitate subsequent dry etching; washing off the shielding film on the P surface, pasting a blue film, finally washing off the adhesive film on the N surface, pouring the film, and finishing the cutting operation. According to the cutting method for reducing the cutting loss of the LED chip, the N-surface adhesive film design is utilized, and dry etching is matched, so situations of edge breakage, wafer flying and the like during chip cutting are effectively avoided, cutting loss of the chip is reduced, meanwhile, light emitting efficiency of tube core particles is guaranteed, the product yield is increased, and practicability is high.

Disclosed are a light emitting device, a lamp and a projection display device. The light emitting device comprises a wavelength conversion device which comprises a perforated substrate and a wavelength conversion layer attached to the inner wall of a hole. The light emitting device also comprises a laser source and a light processing element. A laser emitted from the laser source is incident on the light processing element and processed, and the angular distribution of the laser is in the first angular range, so that the laser can all be incident on the wavelength conversion layer of the inner wall of the hole and the wavelength conversion layer is excited to emit a stimulated laser. The light processing element enables all of the laser to be incident on the wavelength conversion layer of the inner wall of the hole without direct injection from the hole, so that the luminous efficiency and uniformity can be guaranteed. At the same time, the size of the hole limits the size of the aperture of the emitted light, small holes can make the exit light spot become small, and the luminous flux is prevented from being affected, so that relatively higher brightness can be achieved.

The invention relates to a COB light source. The COB light source comprises a substrate, a dam positioned on the substrate, an LED chip positioned in the dam, a packaging adhesive layer covering the LED chip and a light distribution layer covering the packaging adhesive layer. The light distribution layer comprises a plurality of light distribution pieces, the light emitting surfaces of the lightdistribution pieces are arc-shaped, and the cross sections of the light distribution pieces are in an axisymmetric structure. Correspondingly, the invention also provides a manufacturing method of theCOB light source. According to the COB light source, the packaging adhesive layer is directly covered with the light distribution layer, the refractive indexes of the light distribution layer and thepackaging adhesive layer are not greatly different, light emitted by the LED chip is directly emitted through the packaging adhesive layer and the light distribution layer, the step-shaped refractiveindex change is avoided, and light rays can be emitted; and moreover,, the light emitting surfaces of the light distribution pieces is arc-shaped, so that the light rays of the COB light source are emitted in a concentrated manner and are not scattered to a peripheral area, and the light emitting efficiency of the COB light source is further ensured.

The invention discloses an anti-peeping display panel, an anti-peeping display device, a manufacturing method and a using method. The anti-peeping display panel comprises a display substrate and a peep-proof device arranged on the light-emitting side of the display substrate, the display substrate comprises a substrate body, a driving circuit layer, an anode, a light-emitting layer, a cathode with a first preset thickness and a light extraction layer with a second preset thickness, the driving circuit layer, the anode, the light-emitting layer, the cathode and the light extraction layer are sequentially stacked on the substrate body, and light emitted from the light extraction layer is quasi-collimation light; the peep-proof device comprises a first film layer with a fixed refractive index and a second film layer with a variable refractive index, the contact surface of the first film layer and the second film layer is of a non-planar structure, and the second film layer changes the refractive index in response to a loaded voltage so that the peep-proof device can directly emit or deflect and emit quasi-collimation light. According to the display panel provided by the embodiment of the invention, the display panel can be adjusted between peep-proof display and wide-viewing-angle display by limiting the thicknesses of the cathode and the light extraction layer and arranging the peep-proof device with the variable refractive index on the light emitting side of the display substrate.

The present invention provides a high power LED chip back electrode integrated package module with a stand, comprising a substrate, a lens stand, and a tens made of glasses. The lens stand is provided above the substrate and wraps same, and is provided with a fixed cavity where the lens is placed; the lens is provided in the fixed cavity and is connected to the lens stand; the substrate comprises a first line layer, a first ceramic layer, and a first metal layer which are connected sequentially; a first electrode connection disk is provided at both ends of the first metal layer; the first electrode connection disk is connected to the first line layer, and is in pressure connection to an external component; the first line layer is provided with multiple first LED chip units; the lens is provided above the first LED chip units and corresponds to the position thereof. The present invention further provide another high power LED chip back electrode integrated package module with a stand. According to the present invention, the electrode connection disk is isolated from the outside to prevent external impurities from contaminating the electrode connection disk.