How Do Light Bulbs Work?

The lamp is a consumable material in the projector, and its service life is certain. In most cases, the life of the lamp when it is damaged is less than the specified index, because the internal temperature of the lamp is very high, and environmental temperature control is very important. There is more than one exhaust fan to keep the ambient temperature. If it is exposed to high temperature for a long time, the lamp will accelerate aging and decrease brightness. Causes premature lamp damage.

The projector is an expensive product with severe consumables. Improper use often causes damage to electronic devices, which not only affects normal teaching activities but also increases teaching costs. Among them, the lamp is an important component of the projector imaging, and it is also the most easily damaged part. The projector uses the photoelectric effect of liquid crystal to produce images with different gray levels and colors. Universal is a three-piece LCD panel projector. It uses a set of optical systems to split the strong light into three beams of R, G, and B through a beam splitter. The light passes through the three-color LCD panels of R, G, and B, and the signal undergoes AD conversion. Modulation is added to the liquid crystal panel. By controlling the opening and closing of the liquid crystal cell, the on / off of the light path is controlled. The R, G, and B light finally converges in the prism, and is projected on the screen by the projection lens to form a color image. Therefore, the quality of the projector image is closely related to the quality of the lamp.

1. Do not continue to work for more than 4h

The projector is not suitable for long hours. Due to the large amount of heat generated by the projector lamp, it is generally necessary to give it a little rest for 4 hours of work, otherwise the interior of the lamp will generate a high temperature, which will easily cause the lamp brightness to quickly decay. It will also affect the life of the bulb and even burn the machine.

2. Avoid illegal power outages

If the projector suddenly loses power while it is operating, it should be turned off at this time. If the power is not cut off, a sudden incoming call within a short period of time will cause the bulb to operate at a high voltage, which will most likely explode the bulb. Because the glass of the projector's bulb dissipates heat slowly, and deep inside the machine, if you want to work a second time, the interval should be at least half an hour. So if the area is frequently powered off. It is best to add uPs (Uninterruptible Power Supply) to avoid affecting the life of the projector lamp due to illegal power failure.

3. There should be a short interval for switching

Because the projector's power supply uses electronic components such as transformers and power switching tubes to step down, stabilize and stabilize the mains power,

Although the bulb is made of heat-resistant high purity

(1) Replace the lamp after disconnecting the power.

(2) Some projectors need to reset the lamp timer after replacing the new lamp, otherwise, the projector's information prompt function will not work.

(3) Mercury mercury lamp is used for the projector bulb. It is made of glass and its interior is under high voltage. During use or vibration, the mercury lamp may burst, and glass fragments will be scattered in the light box when the bulb burst Some mercury-containing gas will be emitted. At this time, the projector should be placed in a ventilated place to avoid human exposure to these gases.

(4) Lamps that have been used for an extended period of time or have exceeded their service life may be more likely to burst. Therefore, after the projector prompts or displays a new lamp, replace it in a timely manner.

(5) Pay attention to the location of discarded used bulbs, and do not damage the bulbs at the same time.

(6) Nowadays, there are many standardized products for projector bulbs. It is not necessary to adapt the bulbs of the original projector brand. There are many brands of projector bulbs that can be adapted to most brands of projectors. Users can choose from the e-commerce platform. Buy and replace.

(7) If you are not familiar with the structure and performance of the projector, you must ask professional maintenance personnel to replace it. ^[2]