[Office Partner Information Channel] Projection light bulb is an important consumable in the projector. The price is relatively expensive. How to effectively protect the light bulb is a problem that every user must take seriously. To this end, we will make the following six suggestions, hoping to help the majority of projector users, effectively protecting the projector bulb. 1, the power switching interval should be about 5 minutes Because the power supply of the projector adopts the proportional pulse width modulation method to step down the power supply, stabilize the power, and stabilize the power processing. When processing these links, the power switch tube and the transformer used by the projector power supply will work at a higher level. At the frequency, the switching tube naturally has a considerable switching loss during frequent switching, and these losses are transferred into heat, which causes the temperature inside the projector to rise, plus the bulb itself. When heat is concentrated in a small space inside the projector, it is easy to cause the bulb to explode. In addition, frequent switching of the power supply will also cause a large current impact on the projection bulb, and the projection bulb will be easily damaged. In order to avoid damage to these bulbs, we try not to switch the projector frequently, and remember that if you want to reboot after turning off the projector, you must wait patiently for about 5 minutes. 2, the projection environment should not be reflective Many people often mistakenly believe that as long as the brightness of the bulb is raised enough, the projection effect will be very clear and easy to distinguish; in fact, the projection effect is good, in addition to the brightness of the bulb, and the working environment of the bulb. Relationship, the light intensity of the working environment will affect the projection effect. Therefore, we must lay out the projection working environment, as far as possible to avoid the projection lamp working under too strong conditions, because too strong ambient light may make the bulb brightness effect worse; so to get better For the projection effect, we may install curtains in the room to block the outdoor light; the walls and floors of the room should use materials that are not suitable for reflection, because these details will make the brightness of the bulbs a higher level. 3. Ensure the "identity" of the power supply In order to prevent the lamp from exploding or the working power mismatch, the projector has strict regulations on the power supply specifications. When connecting the projector to a power outlet, the user should pay attention to the nominal value of the power supply voltage, the ground wire of the machine and the polarity of the power supply, and pay attention to the grounding. This is because when the projector is connected to a signal source (such as a PC) with different power sources, there may be a high potential difference between the two zero lines. When the user plugs in or unplugs the signal cable or other circuits, the fire will occur between the plug and the socket, and the signal input circuit will be damaged. Not only may the lamp not work properly, but also the projector may be damaged. In serious cases, Caused a fire accident. Therefore, it is best to use the supplied power cord and ensure that the socket connected to the power cord is grounded reliably. 4, switching power supply attention to the order Because the projector power supply part is responsible for the task of powering the internal circuit part of the projector and the projector lamp, if the projector power is not turned off in the correct order, the lamp may be turned off together with the power of the projector circuit, the inside of the projector The fan power will also stop working, so that the bulb and the large amount of heat generated by the projector during the work can not be removed by the fan in time, which may cause the bulb to explode. Many users who have just started to touch the projector often switch the projector frequently and arbitrarily. In fact, the projector is strictly regulated to turn on and off its power supply, otherwise it may damage the bulb or cast. Normally, when turning on the projector, we should first turn on the power, and then press and hold the LAMP indicator in the projector's control panel until the green light does not flash. When the power is off, you cannot directly cut off the power. Instead, press and hold the LAMP indicator until the green light does not flash, the projector cooling fan stops rotating, and then turn off the power. Therefore, properly switching the power of the projector has a great influence on the life of the lamp and the life of the internal components of the projector. 5, no more than four hours per job If the projection lamp is working for a long time, the imaging system inside the projector may emit a lot of heat, which will cause the temperature inside the projector to increase rapidly, because the quartz inside the projector bulb will be devitrified under high temperature conditions. The phenomenon, so that white spots appear, so the devitrification place a large amount of blocking light, so that the temperature of the local area is abnormally increased, thereby causing the devitrification area to further expand, thereby rapidly attenuating the brightness, and is likely to cause the bulb to explode. Therefore, we must pay attention to the projector's duration of work can not exceed four hours. 6, the advantages of UHP bulbs UHP bulb is an ideal cold light source commonly used in projectors. It has the advantages of long service life, generally can be used for more than 4000 hours, and the brightness attenuation is small. The disadvantage is that UHP is a monopoly of Philips patent technology and the price is high. . Source of information: Internet Sexy Pajama Set For Women,Women'S Sexy Lingerie,Women'S Sexy Plus Size Pajamas,Women'S Loungewear Pajamas Hun Yuan Ya Lian Wan Jia Dian Zi Shang Wu You Xian Ze Ren Gong Si , https://www.ylwjastragalus.com
Teach you six strokes to effectively protect the projector bulb