1, because the led light bulb will generate heat during use, it is necessary to choose the led light bulb with good heat dissipation effect. The heat dissipation effect of ceramic material is better, followed by plastic-coated aluminum, and again plastic, so try to choose ceramic led bulbs. The bubble shell of the bulb will affect the light transmittance and lighting effect of the lamp.
2, judge whether the lamp is energy-saving to see the lightEfficiency, that is, the same consumption of a watt of electricity, the lamp lumen comparison. Color temperature yellow light color temperature is actually lower than white light, pay attention to oh when purchasing. Color rendering refers to the true degree of reproduction under light, relative to daylight. Kitchen, study, etc., need high color rendering, while leisure space is suitable for low color rendering.
3, to buy the LED light cannon, first of all, we must understand what is included in the LED light? LED bulbs mainly include three parts: the main LED chip, LED heat dissipation device, LED power converter.
4, buy light bulbs must be bought in a regular store,How much is the chip price of LED?
General binary led chip price , three is the ordinary brightness led chip price chip four is the high brightness chip in the LED industry led chip price , Four yuan is another name for the red and yellow LED chip, and red and yellow light also has three yuan, because the LED uses AlInGaP as the main structure. The real difference is that there are several elements in a compound semiconductor, such as GaAs is binary, AlGaAs is three, InGaAsP is four.
The quality of LED lamp beads mainly depends on the chip and packaging process, in use to pay attention to the brightness, color zone to meet your requirements and the consistency of the whole batch of lamp beads, this is very important.
Each 1800 yuan above Xiaobian for you to introduce the price of several types of LED lights, the following Xiaobian for you to specifically introduce the two LED lights often used in life, to see how much their manufacturers offer.
The following is the recommendation of several LED lamps for your reference. LEThis LED floodlight is suitable for outdoor courtyard use, waterproof and ultra-thin, floodlight gold halide floodlight mining light 30W50W100W engineering light 30W ultra-thin value version of positive white light, the price is 38 yuan.
1, the representative of digital light processing technology DLP screen and LED technology representative LED screen, each has its own advantages. This article will reveal the characteristics and advantages and disadvantages of these two display technologies for you to help you better choose your own display. A wonderful interpretation of digital optics DLP screen uses DMD as the core processing element to achieve a wonderful interpretation of digital optics.
2, Explore the new vision of the future display: new display technology In the rapid development of science and technology, the new display technology is like a bright star to illuminate the display field. Among them, the flat panel display technology diversified development, including PDP, FED, OLED, and more cutting-edge AMOLED, Mini/Micro-LED, QLED and laser display.
3, compared with the traditional liquid crystal display technology, a significant advantage of OLED display technology is that it has a selfLuminous properties. OLED panels are able to independently control the brightness of each pixel, so they can achieve true black when displaying black, which is not possible with liquid crystal display technology.
4, SONY does not stop here, they are actively exploring flat panel transparent display to improve the display effect and application range. The latest prototype screen has a brightness of up to 3,000 CD /m and a transparency of more than 85%, which can still present high brightness images in bright environments. The future application fields will be broader, including retail cash register, financial services consulting, real-time captioning, etc., showing HOE technology in intelligent interactionAnd infinite possibilities in the transmission of information.
5, is a virtual reality technology launched by Huawei. With a head-mounted display and joystick controller, users can experience virtual reality scenes in an immersive manner. This technology can make users feel more authentic immersive experience, but also can be applied to games, education, medical and other fields.
ADC12 aluminum alloy LED lamp housing usually uses ADC12 aluminum alloy led chip price , this alloy from Japan led chip price , known as the 12 aluminum material led chip price , Al-Si-Cu alloy of it, is the leader in the die-casting industry, suitable for creating the lid, cylinder class.
Do you know led chip price ? Behind those cool and colorful lights, the real hero is actually the light-emitting diode, or LED for short! This article will take you to explore the magic of LEDWhere, led chip price Understand its wide application in modern society. LED is a kind of magic light emitting device, it works by the combination of electrons and holes to release energy, so as to emit light.
Material selection, such as aluminum, aluminum alloys, copper or copper alloys, is carefully selected for thermal conductivity. The choice of heat dissipation method directly affects the cost and performance of LED lamps. Is the choice of air convection heat dissipation, wind cooling heat dissipation or heat pipe heat dissipation? Behind this, designers are concerned about costComprehensive consideration of efficiency and performance. The packaging of LED chips The packaging of LED chips determines the key to the quality of LED lamps.
Q235: carbon structural steel with yield point (σs) of 235 MPa. The yield value decreases with the increase of the thickness of the material. Due to moderate carbon content, good comprehensive performance, strength, plasticity and welding properties have been better matched, the most widely used.
LED lamp shell is a kind of blister acrylic plate (organic material) made of lamp shell, to prevent electric shock and other functions. LED lamp shell is not only covered in the lamp toThe effect of bringing the light together can also prevent electric shock, and it also has a role in protecting the eyes, so each lamp will have a lamp shell.
Several materials inside the led lampshade function as follows. Polycarbonate (PC) : The LED lamp shade made of PC has good light transmission, strong anti-fall ability, can effectively protect the LED lamp, good plasticity, low cost, easy to manufacture. Polyethylene (PE) : LED lampshades made of PE have good corrosion resistance and long service life, but poor light transmission.
The steps of chip manufacturing include sand and silicon separation, silicon purification, silicon casting into silicon ingots, wafer processing, lithography, etching and ion implantation, copper filling, gluing, and making another layer of structure. 1 Chip manufacturing requires 5000 processes led chip price , involving more than 50 industries, 2000-5000 processes.
The dry etching technique is used to remove the material in a specific area to form the platform pattern of the chip. Remove the temporary adhesive layer after etching. The chip is annealed to improve its electrical propertiesAnd optical properties. A layer of SiO2 is deposited as a window layer, protecting the chip while allowing light to pass through. 1. Lithography of window graphics is performed to define the luminous window of the LED chip. 1 Corrode the SiO2 window layer to form the desired window shape.
LED pressure welding process has two kinds of gold wire ball welding and aluminum wire pressure welding. The picture on the right is the process of aluminum wire pressure welding, first press the first point on the LED chip electrode, and then pull the aluminum wire to the corresponding bracket, press the second point and then pull off the aluminum wire.
Process: LED chip inspection Microscopy: whether there is mechanical damage and pitting pits on the surface of the material(lockhill chip size and electrode size meet the process requirements whether the electrode pattern is complete LED expansion because the LED chip is still arranged closely after the slice is very small (about 0.1mm), which is not conducive to the operation of the post-process. led chip price We use a spreader to expand the film of the bonded chip, and the spacing of the LED chip is stretched to about 0.6mm.
The production process generally divides the production of LED into three parts: upper, middle and downstream. Manufacture into a single crystal rod, and then cut the single crystal rod into thin slices with a diamond knife (mainSapphire and, SiC, Si) long crystal furnace growth - cutting rod - rolling - quality inspection - slicing - grinding - chamfering - polishing - cleaning - quality inspection -OK. In general, the LED production process is divided into two parts: First, the gallium nitride (GaN) -based epitaxial sheet is made on the substrate, and this process is mainly done in the metal-organic chemical vapor deposition epitaxial sheet furnace (MOCVD). After preparing the material source and various high purity gases required for the production of GAN-based epitaxial sheet, the epitaxial sheet can be gradually made according to the requirements of the process.