What are the different types of projection bulbs?

different types of projection bulbs can be categorized on the basis of devices that are designed or on the method used by lamps to generate light. Design bulbs are required in different equipment, from overhead projectors used in instructing settings to TV files and other devices used for entertainment. Each of these devices requires a different type of projection bulb for operation. Many different technologies are also used in these bulbs. Most of the projection bulbs were once halogen lamps, although xenon arch and metal halogenide became more popular elections for factors such as longevity and brightness. Some of the simplest devices that work on this principle are above -ground projectors that send light through the transparent image and then use the mirror to enlarge the image and store on the screen. Similar devices that are in fun, teaching and business settings are used to convert video signals to a picture thatcan be projected on the screen. TVs rear and front projections also require lamps.

The most commonly used lamps contain halogen at one point due to the bright light that they were able to produce. Halogen lamps work at very high temperatures and can produce yellow colored light that may not be desirable for some applications. One common use of halogen bulbs was in above -ground projectors, which usually had strong fans to keep the lamps cool. Over time, these lamps have been replaced by various other technologies.

6 These projection bulbs are sometimes referred to as ultra -high performance (UHP) or other names and often contain mercury pairs. Metal halid lampyjs are able to produce bright light with a fully colored spectrum that eliminates yellow shade associated with halogen bulbs, and may take about 10,000 hours to appear a noticeable degradACE quality. Different types of metal halid lamps are used on television, projectors and other devices.

Many projection bulbs found in theaters use Xenon Arc technology. These lamps are full of ionized xenon gas and can create very intense white light. Depending on the application, these bulbs are able to issue between 900 and 15 kW.

Some projectors and TVs also use light emitting diodes (LED). Instead of the only high -powered lamps, these devices use a series of LEDs that can release about the same amount of light. Most bulbs have a half -life between 10,000 and 20,000 hours, although the ice can take considerably longer.