521results about How to "Soft light" patented technology

The invention provides a design method of an LED (light-emitting diode) dimming driving switching power supply applied to various traditional dimmers. According to the design method, the LED driving power supply achieves the resistive load input-output characteristics similar to those of an incandescent light bulb, so that LED lights (semiconductor LEDs) can be well suitable for dimming of the traditional dimmers (including traditional dimmers adjusting the phases of conduction angles through leading edge phase cut and traditional dimmers adjusting the phases of conduction angles through trailing edge phase cut, wherein silicon controlled dimmers are dimmers adjusting the phases of conduction angles through leading edge phase cut) and be used in indoor places where the traditional dimmers are needed for dimming. The LED dimming driving switching power supply designed according to the design method provided by the invention comprises a dimmer starting circuit loop, a rectifying circuit, a phase detection and isolation circuit, a phase cut detection circuit, a power-factor correction circuit, a switching power supply circuit and an LED current control circuit.

The invention relates to a LED lighting bulb, which comprises a socket, a separating pillar, a radiator, a light source base, a plurality of LED lamps, insulated aluminum base plates and a glass lamp housing, wherein, the socket is connected with the separating pillar connected with the radiator; the radiator which is round is connected with the light source base, and the center of the radiator is provided with a via hole; a thermal conductive pillar connected to the via hole is arranged at the back end of the light source base; the insulated aluminum based plates uniformly provided with a plurality of LED lamps are connected with the front end center of the light source base; the glass lamp housing, the inner surface of which is coated with a layer of reflection grinding powder, is connected with the light source base. The invention has the advantages of large luminous area, soft light, low power consumption without mercurial pollution, good heat dissipation, low surface temperature of the lamp, good safety, convenient operation and long life, without needing to install accessories of the prior fluorescent lamp such as ballasts, starters, etc., and the start-up of the bulb free from influence of temperatures and on-off times.

The invention discloses a dyeing and finishing technique of a tencel and cotton blended fabric. Firstly, textiles are treated by two positive and one reverse singeing, desizing and scouring and bleaching treatment, clipless mercerizing by a clipless mercerizing machine, and continuous open width pad dyeing, then loose color of the textiles and surface active agent are removed by washing to carry out easy care treatment, finally softening is carried out by adopting mechanical force. The invention has simple process. The invention greatly increases the strike immigration performance of the textiles and is easily dyed uniformly, thus improving the quality of tencel and cotton fabric and the product levels. The dyed surface fabric has good textural quality which is similar to tencel, soft hand feeling, soft light color, comfortable and breathable wear, easy care, and can be widely applied to shirt fabrics with top quality and home surface fabrics.

The invention discloses semitransparent light diffusion modified PC (Polycarbonate) and a preparation method thereof. The semitransparent light diffusion modified PC consists of the following components in percentage by weight: 96.4-98.2 percent of PC resin, 1-3 percent of light diffusing agent, 0.2-0.5 percent of antioxidant and 0.2-0.5 percent of processing aid. The semitransparent light diffusion PC prepared with the method is in the form of semitransparent particles, is applied to an LED (Light-Emitting Diode) lamp shield and a lighting tube, can be used for effectively reducing the light ray intensity, is vaporous integrally without exposing a light source and has soft light rays, and has the advantages of simple process, convenience for operating, low cost and wide application prospect.

The invention provides a reflective cup for a LED lamp, comprising a reflection surface and a bottom surface; the LED is positioned in the center of the bottom surface, a part of light of the LED is emitted from an opening of the reflective cup directly, the part of light reaches an objective plane to form an initial illumination plane, the other part of light is reflected by the reflective surface of the reflective cup to the initial illumination plane, a uniform lighting plane is formed by the energy overlay of the two parts of light, the reflective surface of the reflective cup is a free surface, the shape of the free surface is determined by the following method: the reflective cup is in central axial symmetric shape, the section crossing the central axis of the reflective cup is taken as a datum plane, coordinates is established, the central axis is Z axis, the original point is on the central axis, the LED light source is positioned at the original point, the direction passing through the original point and is vertical to the central axis is X axis, a curved line on the XZ plane corresponding to the free surface is rotated for 360 degrees around the Z axis, then the shape of the free surface is obtained. The reflective cup of the invention is simple and compact in structure and the LED optical uniformity is good.

The invention relates to an LED supplementary lighting and image clipping evaluation system in standard image acquisition device, comprising an LED light source (101), a 1-120 VDC (Voltage-to-Digital Converter) power supply (102), a control circuit board (103), an image acquisition system (105), an LED light source switch (106), and an LED light source controller (301); the LED light source (101)is connected with the control circuit board (103) via an analog circuit, a digital circuit or an integrated circuit; the LED light source (101) is connected with the 1-120 VDC power supply (102) via the analog circuit, the digital circuit or the integrated circuit; the control circuit board (103) is connected with the image acquisition system (105) via the analog circuit, the digital circuit or the integrated circuit; and the technology of the invention is applicable to the public security image acquisition system, and improves the operation efficiency and image quality.

A UV coating composition for LED color conversion including: 25 wt % to 97 wt % of a UV curable resin; and 3 wt % to 75 wt % of a phosphor. The composition enables emission of white light using only a white LED lens or a light guide plate without affecting a blue, violet or UV LED, thereby eliminating a need for a white LED. Further, users of a LED including the composition can perform direct and easy adjustment of the intensity of white light to obtain a desired intensity by replacing a conventional LED lens. The LED lens provides soft and comfortable lighting which effectively reduces glare caused by high brightness white LED lighting. Moreover, the composition slows deterioration of a lighting device and makes possible a light guide plate having a simple and thin structure.

The invention relates to a lampshade material. The lampshade material comprises the following raw materials in parts by mass: 100 parts of PMMA, 4-6 parts of an organic silicon material, 1-2 parts of methylacryloyl methoxyl silane, 0.5-1 part of polyethylene glycol, 0.4-0.8 part of an organic silicon photodiffusion agent, 1-1.5 parts of carboxymethylcellulose, 1-2 parts of nano negative ion powder, 0.5-1.5 parts of nano yttrium oxide, 2-5 parts of polytetrafluoroethylene ultrafine powder, 0.5-1.5 parts of an antioxidant and 0.5-1.5 parts of a light stabilizing agent. The invention further relates to a preparation method of the lampshade material. The lampshade material is good in light permeability and gentle in light, the thermal expansion coefficient of the lampshade material is matched with an LED chip, and the wafer of an LED lamp is not bent because of temperature change in normal operation, so that the LED lamp is solid and stable in overall structure in the use process, the service life can be prolonged, the lampshade material has an air purification function, the preparation method of the lampshade material is simple, the dispersing property of the lampshade material can be remarkably improved, the light transmittance rate and the haze degree are remarkably increased, and the mechanical property and the surface hardness are remarkably improved.

An LED lamp includes a frame, a heat sink, an LED module and a reflector. The frame comprises a base, an upper ring spaced from the base and a plurality of stanchions connecting the upper ring and the base together. The heat sink is coupled to a top of the upper ring and covers a whole of a top of the frame. The LED module is attached to a bottom surface of the heat sink and surrounded by the upper ring. The reflector is placed on the base and has an outer surface facing and slantwise to the LED module. The reflector has a configuration like an inverted funnel. The outer surface of the reflector has multiple steps formed thereon.

The invention discloses an intelligent LED (light-emitting diode) video synchronizing impulse stroboscopic supplemental lighting device. The device is composed of an electronic circuit and a shell, wherein the electronic circuit has the following structure: a 220V alternating current is connected with a 24V switching power supply and a synchronization generator, the 24V switching power supply is connected with an LED lamp matrix and a +12V power supply circuit, the +12V power supply circuit is connected with a +5V power supply circuit, a light ray detection circuit is connected with a signal processing circuit, a signal input circuit is connected with the signal processing circuit, the signal processing circuit is connected with a signal output circuit, and the signal output circuit is connected with the LED lamp matrix through an actuator. With the adoption of the device provided by the invention, the phenomena of dazzling, uneven exposure and streaking can be effectively avoided, the synchronous exposure with a frame of a camera and frequency multiplication output of light can be realized, and the problem that the color of the red light in an image shot by a monitoring camera changes from red to yellow during the red light signal of traffic lights is solved.

The invention relates to a module possessing a light conversion function. An organic silicone rubber is taken as a carrier. An LED phosphor and an organic light diffuser agent are added to form the light conversion module. The module is soft and elastic. A preparation method is characterized by: mixing organic silicon glue, the LED phosphor and the organic light diffuser agent uniformity; injecting into a mould, heating, curing and molding. The module can be used in a blue ray LED light source. The LED phosphor can be excited to glow by the blue ray emitted by the blue ray LED light source, and through reflection, refraction and scattering effects of the organic light diffuser agent, the light of the LED phosphor and the blue ray which is not be absorbed are composited into the white light or the light with other colors. The light color and intensity of the obtained compound light distribute uniformly, and are soft without glare. The compound light can realize the wide-angle light and can be applied in LEC illumination and decorative lamps.

The invention belongs to the field of LED light emitting devices and aims at providing a full-spectrum high-color-rendering LED white light emitting device to solve the problems of spectrum incompletion of white light produced by LED excited fluorescent powder, high components of blue light peak values, poor color reducibility and the like. The full-spectrum high-color-rendering LED white light emitting device comprises a device support and device pins, wherein at least one group of light emitting units electrically connected with the device pins is arranged on the device support, each light emitting unit comprises two or more blue light LED chips of different wavelengths, LED chips are fixed to the device support through insulation paste or are fixed to the device pins through elargol, and a cavity where the LED chips are fixed is filled with a mixture of fluorescent powder and silica gel. The full-spectrum high-color-rendering LED white light emitting device is fuller in spectrum, more continuous, wider in frequency spectrum, softer in light color and higher in light effect, reduced object surface colors are more lifelike, blue light is less, and the blue light peak values are lower.

The invention discloses an air conditioner with an electroluminescent device and a control method thereof, which enable the air conditioner control technology and the electroluminescent material technology to be organically combined together and has very outstanding decoration effect for the overall appearance of the air conditioner. The air conditioner with the electroluminescent device comprises a panel body, a casing, a controller and an electroluminescent device, wherein the electroluminescent device is positioned on the outer surface of the panel body or the casing; the electroluminescent device comprises a conductive glass layer, an electroluminescent layer and an electrolyte layer from outside to inside in sequence; the total or partial area of the outer surface of the panel body or the casing is covered by the electroluminescent device; and the conductive glass layer and the electrolyte layer of the electroluminescent device are respectively taken as an upper electrode and a lower electrode and are electrically connected with the controller through a drive circuit. The electroluminescent layer of the electroluminescent device is an electrochromic film and the electroluminescent device is covered on the outer surface of the panel body.

The present invention discloses a light-diffusing flame-retardant polycarbonate material for LED lighting, wherein the light-diffusing flame-retardant polycarbonate material comprises (by weight) the following raw materials. According to the present invention, the organic light diffusing agent is added to the composite substrate, such that the light is soft, the stability is good, the particles are tightly bound, and the uniform system is easily formed; through the matched cooperation of the organic light diffusing agent and the fluorescent brightener, the light transmittance can be improved, and the light diffusion effect can be improved; and the product has the good gloss, the interface combination degree of the matrix resin is enhanced with the compatibilizer, the impact strength is increased, the product has the toughness, and the flame retardant property is provided for the product through the flame retardant agent.

The invention relates to a backlight module with wide amplitude and even light, which can be used as light source by installing in lamp house by assembling one or a plurality of modules. The invention comprises a straight tube type light source, an even light reflection board with multi turning surfaces and an even light bowl. The reflection board with multi turning surfaces and even light respectively comprises a reflection area, a lens diffuse mixing reflection area and a diffuse reflection area from central line to two sides, and each reflection area is formed by one or more than one reflection surfaces, and positioned under the straight tube type light source. The even light bowl is positioned above the straight tube type light source, and provided with a rhomboidal beam orifice, and the edge is in randomly scattered tooth shape, and the face facing the light source is the lens reflecting surface, and the face facing the display surface is the diffuse reflection surface. The design of three areas solves the difficulty of reflected light distribution and control. Reflection ray can be reflected in a cross way in the distance by the even light bowl, and the light ray can be gentler. The effective use rate of the module reaches about 90 percent, wide amplitude reaches 500 to 600 mm, and lighting evenness reaches more than 90 percent. Moreover, the advertising light box thickness is controlled between 70 mm to 50 mm.

The invention discloses a method for processing low-ultraviolet high-transmittance window screen fabric. Polyester filament yarn with TiO2 is mainly adopted as main raw materials in the window screen fabric, and the window screen fabric is formed by weaving twill weave and self-designed crepe weave according to different rationcombinations and dyed yarn matching through damp and hot shaping. According to the fabric, on the premise of lowering the ultraviolet transmittance, the high visible light transmittance is achieved at the same time, the front face and the back face have different visible light transmittances, and the hidden function and the peep prevention function are achieved. The window screen fabric is not dyed and coated, color and style design of the fabric is completed by adopting the natural color and dyed yarn in different ration matching modes, and the fabric is environmentally friendly. The method has novelty and originality and has better applicability and adaptability. According to the window screen fabric manufactured through the processing method, on the premise of guaranteeing the good light transmittance, the ultraviolet transmittance is lowered, and finally the functions of meeting normal indoor lighting and lowering ultraviolet transmittance are achieved.

The invention discloses a flexible light-guiding optical fiber fabric. Weft threads are formed by alternatively combining polymethyl methacrylate optical fiber spinning yarns and common yarns, warp threads are common yarns, the ends of the polymethyl methacrylate optical fiber spinning yarns are integrated together and sleeved by a non-light-transmitting circular ring. The invention further provides application of the flexible light-guiding optical fiber fabric on the aspects of household textiles, clothes and wallpaper. The flexible light-guiding optical fiber fabric is low in cost and long in service life and can be used repeatedly, and the price can be accepted by vast consumers. The flexible light-guiding optical fiber fabric is free of ultraviolet and infrared light pollution, is combined with a textile material to be used in a closed-fitting mode and does not injure a human body and damage the textiles. Photoelectric separation is achieved, no electric spark is produced, shock hazard is not caused, and the flexible light-guiding optical fiber fabric represents a qualitative leap.

The invention relates to the field of diffusion plates, in particular to a foaming light diffusion plate and a preparation method and application thereof. Compared with a chemical foaming agent, supercritical fluid is used for foaming to prepare the light diffusion plate, residues of toxic substances cannot be caused, meanwhile, the prepared light diffusion plate has excellent optical performance by controlling the introduction rate of the supercritical fluid, gathered point light sources can be homogenized, and the light diffusion plate has excellent haze; the maximum haze can reach 99.6%, the soft and uniform lighting effect can be achieved, meanwhile, the high light transmittance is achieved, the maximum light transmittance can reach 52.6%, and too high light loss cannot be caused; besides, the mass of the light diffusion plate is effectively reduced, the usage amount of raw materials is reduced, the production cost is reduced, meanwhile, the better mechanical strength is maintained, and the light diffusion plate has good impact resistance, smoothly passes an IK03 test and is wide in application prospect.

A water writing paper simulating the Xuan paper is composed of black base paper and coated white layer, and is prepared through making black base paper, preparing white paint and coating. Said black base paper contains pulp fibres, black pigment, adhesive, acid salt, dry strnegthening agent, and wet strengthening agent. Said white paint paint contains white pigment, disperser, adhesive (butadiene-styrene or propadiene styrene emulsion and PVA), cross-linking agent and regulator. Its advantages are low cost, clear tracing and cyclic use.

The invention relates to a pest disaster monitoring method based on machine vision. The method includes the steps of installing a pest inducing device at a pest gathering place, and arranging an imagecollecting device facing the pest inducing device to collect images; identifying pests in the collected images and obtaining the number of the pests; if the number of the pests is greater than or equal to a preset threshold value for the number of the pests, separately extracting all the areas where the pests are located from the images to serve as suspected images of the pests, and judging the identification accuracy of each suspected image of the pests; according to the number of the pests and the identification accuracy of each suspected image of the pests, working out the pest disaster prediction level. By arranging the image collecting device facing the pest inducing device to automatically collect the images of the pests, large consumption of time and labor in manual visual inspection can be avoided, and the pests can be monitored in real time; by combining the number of the pests and the identification accuracy of each suspected image of the pests, the accuracy of calculating the pest disaster prediction level is higher, the obtained result is more significant, and the instructiveness in prevention and control of the pests is improved.

A lighting fixture is disclosed to include a light guide bar, a connector holding a LED at a first end of the light guide bar, and a first reflector and a second reflector respectively covered on a part of the periphery and a second end of the light guide bar to reflect light from the LED out of the light guide bar. The connector has a barrel at the first end thereof that accommodates one end of the light guide bar and the LED, an accommodation space at the second end that accommodates electronic components, and a detoured wire path that guides electric wires of the LED out of the connector and prevents disconnection of the electric wires from the LED. A second LED may be attached to the second end of the light guide bar to substitute for the second reflector.

The invention discloses a light-emitting shoe material and a preparation method thereof. The light-emitting shoe material comprises styrene type thermoplastic elastomer, 1,2-polybutadiene, styrene-butadiene copolymer (K adhesive), white mineral oil, a photo-thermal stabilizer, a lubricant and nano silicon dioxide. The preparation method comprises the following steps: premixing the components in a high-speed mixer, carrying out melt extrusion on the premixture at 120-130 through a double screw extruder, cooling, granulating, and finally, carrying out injection molding at 137-145 DEG C to obtain the light-emitting shoe material. The light-emitting shoe material has the characteristics of uniform light scattering, uniform brightness, soft light rays, favorable toughness, high anti-skid property, stable dimension and the like.

A lighting fixture is disclosed to include a light guide bar, a connector holding a LED at a first end of the light guide bar, and a first reflector and a second reflector respectively covered on a part of the periphery and a second end of the light guide bar to reflect light from the LED out of the light guide bar. The connector has a barrel at the first end thereof that accommodates one end of the light guide bar and the LED, an accommodation space at the second end that accommodates electronic components, and a detoured wire path that guides electric wires of the LED out of the connector and prevents disconnection of the electric wires from the LED. A second LED may be attached to the second end of the light guide bar to substitute for the second reflector.

The invention provides an electronic device. The electronic device comprises a shell, a rear cover and an image acquisition device, wherein the image acquisition device comprises a camera arranged in the shell and a flashlight near the camera. The electronic device further comprises a rotary wheel, wherein the rotary wheel comprises a wheel body axially arranged on the shell or the rear cover and at least two different lenses arranged on the wheel body, and the flashlight is covered with the lenses in turns by rotating the wheel body. According to the electronic device, the different lenses covering the flashlight can be flexibly selected in the photographing process of the electronic device, and therefore different photographing effects are realized.

A quantum dot light emitting diode display provided by the present invention comprises a first electrode, a cavity injection layer, a cavity transmission layer, a quantum dot light emitting layer, an electronic transmission layer and a second electrode which are formed on a substrate orderly, the quantum dot light emitting layer comprises a plurality of pixel units, and each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel, wherein the at least one color of the sub-pixel of the red sub-pixel, the green sub-pixel and the blue sub-pixel is formed by mixing the quantum dots of at least two corresponding colors having different light emitting peak value wavelengths. The at least one color of the sub-pixel in the pixel units is formed by mixing the quanta of the at least two corresponding colors, so that the quantum dot light emitting diode display of the present invention enables the light rays to be softer and the display effect to be improved.

The invention relates to a high lighting-effect low power-consumption light-emitting diode (LED) area light source initiative-passive light-emitting alarm device, which comprises an alarm device body, wherein outer frames are respectively arranged on the periphery of the alarm device body, a clamping groove is formed among the four outer frames, a baseboard is arranged at the bottom end of the clamping groove, a light-emitting device is connected onto the baseboard, and a bag is wrapped on the periphery of the light-emitting device. The light-emitting device comprises a light guiding plate, a strip-shaped circuit board is formed on at least one side of the periphery of the light guiding plate, and a plurality of LEDs are evenly distributed on the strip-shaped circuit board. A first reverse-reflection optical film is bonded at the top end of the light guiding board, a bottom layer high reflection ratio optical film is arranged at the bottom end of the light guiding board, an alarm label formed by a second reverse-reflection optical film is bonded on the top surface of the bottom layer high reflection ratio optical film, and the strip-shaped circuit board is connected with an external power source adapter through leads. The high lighting-effect low power-consumption LED area light source driving and driven light-emitting alarm device has the advantages of being capable of not only initiatively emitting light and displaying alarm information clearly, but also passively emitting light by reflecting lights of an external power source in return mode and displaying alarm information clearly.

The invention relates to a light aging resistant photodiffusion polycarbonate composite material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 700-900 parts of polycarbonate aggregate, 100-300 parts of polycarbonate powder, 0.5-5 parts of photodiffusion agent, 2-8 parts of light stabilizer, 1-5 parts of antioxidant and 0.5-2 parts of processing agent. The light aging resistant photodiffusion polycarbonate composite material is prepared from the raw materials in high-speed mixing, extruding and pelletizing manners. The light aging resistant photodiffusion polycarbonate composite material disclosed by the invention has the advantages of being good in processing formability, good in light aging resisting performance, good in light transmittance and haze, and the like.

The invention relates to the tong arc ventilator which contains several frames, several wind shields, several rain shields, sandalwood strip, drainage system, flashing plate and supporting system. The frames are parallel arranged along the horizontal line and each frame appears forcipate. The frame contains the lower frame, two wind shield frames and two upper frames. The lower frame is a trapezoid without lower band. The two wind shield frames are arc and are fixed on the lower and upper frames symmetrically. The two upper frames are big-shape and are set on both sides of the lower frame. The inner feet of the two upper frames are fixed on the two ends on the upper band of the lower frame. Their T-shape outer feet support to the lower frame and the two wind shield frames. The wind shields are parallel fixed on the wind shield frames appearing louver. Compared with the existing techniques, the invention has advantages of rational structure arrangement, long service life and good lighting capability.