Application of led direction guidance sign
There are many manifestations of self-luminous signs, so let's pick a few common methods for your reference. Back light structure Backlighting is commonly known as backlighting. The light source is installed in the back of the character and in the shell, and it is a kind of luminous character that shines on the wall. The backlit logo is beautiful and elegant, with strong three-dimensional effect, soft light without glare, and strong plasticity. It can be installed on the outdoor door or indoor image wall according to different methods. The large-size back-illuminated logo is very eye-catching, and can generally be used as a LOGO sign for the company's entrance. The small-scale backlit logo helps to enhance the warmth of the environment, and is suitable for the entrance of hotel rooms, cafes, and small restaurants. The material of the back luminous characters is generally stainless steel, aluminum, titanium, acrylic, crystal, iron sheet, etc., the most common is stainless steel. After the metal has a built-in light source, it can be installed suspended from the wall or mounted on the wall, and the light is directly irradiated on the installation surface. That can achieve a hazy beauty. Application of led direction guidance sign you can browse related products and initiate consultations on our website.
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Applicable locations and characteristics of LED canopy light
The LED ceiling light adopts advanced heat dissipation technology and light distribution design, with good heat dissipation effect, accurate light distribution, simple and elegant appearance, and high-reflection material large-angle reflector to uniformly illuminate the working space; suitable for industrial plants, venues, logistics centers, Lighting in public places such as warehouses, heavy industry workshops, and airport waiting rooms. ● High-quality aluminum alloy material, good heat dissipation effect, simple appearance. ● Effective control of the light output range, excellent light color consistency. ● High luminous efficiency, low energy consumption, and remarkable energy saving effect. ● A variety of installation methods are available to meet different customer requirements. ● Effectively replace 250W, 400W metal halide lamps. Applicable locations and characteristics of LED canopy light you can browse related products and initiate consultations on our website.
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SMD LED display processing method
1. Printing: Modern solder paste printers generally consist of plate loading, solder paste addition, imprinting, and circuit board transfer. When the solder paste printer is working, the circuit board to be printed is first fixed on the printing positioning table, and then the solder paste or red glue is printed on the corresponding pad through the stencil by the left and right scrapers of the printer. Input to the placement machine through the transfer station for automatic placement. 2. Patch: The led placement machine is a device that accurately places surface mount components on the pad by moving the placement head. It uses the guide rail or linear motor principle to control the drive head. At the same time, it must be equipped with a professional spunbond nozzle head. During the placement process, production defects such as sticking and rejection are eliminated as much as possible. At the same time, the tank chain of the LED placement machine requires more toughness and ductility to ensure its stability and service life. 3. Welding: Reflow soldering, in surface mount technology (SMT), refers to ingot-shaped or rod-shaped solder alloys, which are melted and remanufactured into tin powder (that is, spherical tiny tin balls), and then combined with organic auxiliary materials (flux) It is blended into solder paste; it is the process of printing, stepping on, patching, and remelting and solidifying into metal solder joints. The welding process is a special process. The operators engaged in the special process shall be trained to be qualified. The operators shall operate in strict accordance with the operation documents, and conduct self-inspection and mutual inspection. Four, overhaul: That means testing can be added to each process to achieve the purpose of quality control. Therefore, in the LED chip processing, so
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LED lighting production process
LED lighting production process material The five raw materials of LED are: chip, bracket, silver glue, gold wire, epoxy resin Chip The composition of the chip: It is composed of gold pad, P pole, N pole, PN junction, and back gold layer (double pad chip without back gold layer). The wafer is a PN combination composed of P-layer semiconductor elements and N-layer semiconductor elements rearranged and combined by the movement of electrons. It is this change that enables the wafer to be in a relatively stable state. When the wafer is applied with a certain voltage to the forward electrode, the holes in the forward P area will continuously swim to the N area, and the electrons in the N area will move to the P area relative to the holes. While the electrons and holes move relative to each other, the electrons and holes pair with each other to excite photons and generate light energy. Main classification, surface emitting type: Most of the light is emitted from the surface of the wafer. Five-sided luminous type: There are more light emitted from the surface and sides according to the luminous color, red, orange, yellow, yellow-green, pure green, standard green, blue-green, and blue. Bracket The structure of the bracket is 1 layer of iron, 2 layers of copper plating (good conductivity, fast heat dissipation), 3 layers of nickel plating (anti-oxidation), 4 layers of silver plating (good reflectivity, easy to wire) Silver glue (due to more types, we take H20E as an example) Also called white glue, milky white, conductive adhesion (baking temperature: 100°C/1.5H) silver powder (conductive, heat dissipation, fixed chip) + epoxy resin (cured silver powder) + thinner (easy to stir). Storage conditions: Silver glue manufacturers generally store silver glue at -40 °C, and application units generally store silver glue at -5 °C. Single agent is 25 °C/1 year (in a dry and ventilated place), mixed agent is 25 °C/72 hours (but due to other factors &quo
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What are traffic lights?
What are traffic lights? Navigation lights have used LEDs as light sources for many years. The current work is to improve and perfect. Road traffic lights have made great progress in recent years, with rapid technological development and rapid application development. There are currently about 40,000 sets of orders in China each year. In California, the United States replaced 50,000 sets of traditional light source signal lights with LED traffic lights in the last year. According to the use effect, the long life, power saving and maintenance-free effects are obvious. At present, the peak wavelength of the LED light emission is red 630nm , Yellow 590nm, green 505nm. The problem that should be paid attention to is that the driving current should not be too large, otherwise the high temperature conditions under the summer sun will affect the life of the LED. Recently, LED airport-specific signal lights used in airports as beacon lights, floodlights and omnidirectional lights have also been successfully and put into use, and the results have been very good. It has independent intellectual property rights, has obtained two patents, and has good reliability. It saves electricity and is maintenance-free. It can be popularized and applied to various airports to replace the old signal lights that have been used for decades. Not only is the brightness high, but because the LED light color purity is good, it is particularly bright and easy to recognize. Railway signal lights require different light intensity and viewing angles due to their large variety series. They are currently being developed rapidly. It is estimated that they will gradually be successfully developed and put into application. In terms of quantity, it is also a fairly large market.
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