The manufacturer that produces projector bulb now basically has PHILIPS, OSRAM, PANASONIC, USHIO and IWASAKI, PHILIPS, OSRAM and PANASONIC communicate and shed bulb to have continuously among them, and USHIO and IWASAKI produce dc bulb only. The bulb of projector is the core component of projector, the life of bulb also is the topic that manufacturer and user care most.
The attaint of projector bulb has 3 big reasons: It is now above all the bulb power of projector is greater and greater, make bulb life shortens; It is a few specific place decisions of the product next; Use normally with respect to dispute additionally, include to be not used according to the manual, did not come loose heat closes machine, frequent switch to wait.
Will tell to the service life of bulb, the life of high-power bulb should want than the life of small-power bulb short, namely the life that the power of bulb uses greatly more is briefer, and the user is taller and taller to the brightness requirement of projector now, this needs the bulb of high-power, it is the reason that makes the life of bulb briefer than wanting before.
Specific place decides, it is material above all, it is craft next, finally is equipment. Will tell from material, the temperature of bulb surface should be 900 degrees are controlled, can be now the temperature of bulb surface is 1005 degrees, can say to had been used to the limit by manufacturer, using so go up to have a bit undeserved can cause damage.
Use angle normally from projector blame for, this is a when affect bulb service life main reason. Investigation is made to the use circumstance of projector in a few schools, the record comes down to work actually state, projector blame closes machine circumstance place to hold proportion normally very tall, it is direct for the most part cut off the power or did not fill dispersive heat to cut off the power, produced very big effect to the life of bulb so. Still have even if come loose to bulb hot net did not clear in time, make bulb temperature exorbitant, also not be temperature lower better, it is to receive wind force and the proportion with give wind force to be hit certain however, make lampwick hits constant temperature, exorbitant or too low temperature can build the attaint of didymous bulb, want pair of bulb so medicinal powder hot net undertakes in time clearing, and clear not just screen pack. It is frequent switch occasion additionally, say unused moment is shut always before, managing the sources of energy, but pass concerned technology personnel determine, frequent switch occasion reduces the life of projector, using 3-5 hour to the projector of 200w bulb is first-rate, if take no account of the problem with report so it lets leaving if be not being used.
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