Projector lamps are used by multimedia projector to transfer the image onto a surface or screen. The educational institution and business settings use projectors in seminars and trainings. Projectors are also used in home theatres and public movie houses. Projector lamps are also known as projector bulbs or projector light bulbs in the old days. Early designs impart a yellowish tone on the image that they project, this is not particulary good in images where "true white" is needed. The older designs that create a "yellowish tone" were constructed from Halogen lamps and the newer design which produces "brilliant white" light is made up of Metal-Halide lamps. When buying projector lamps, you must first consider the type of projector lamp that you are going to buy. There are 3 main types of projector lamp, the first one is the projector lamp for slide projectors, then we have the lamps designed for overhead projectors and finally, projector lamps designed for multimedia projectors. The wattage varies depending on the type and applicatio of the projector lamp. Multimedia projector lamps are the most expensive costing several hundred to several thousand dollars.
Q: There is power to the unit and the fans are running, but no image is projected.
A:
Make sure the lens cap is off.
Does the projector have a status LED or LCD screen? If so, a non-working lamp will cause a LED code or LCD message to appear. This will indicate how you should proceed.
Remove and reseat the lamp door. The lamp will not ignite if the lamp door is loose or is missing. Remove and reseat the lamp module.
It may be that the maximum lamp hours have been exceeded. If so, the lamp in your projector may not light until the counter has been reset. Check the lamp counter and software version in the About window. Check your user's guide on how to check the lamp hours on your model.
Replace the lamp.
If the projector still will not display the image, it is may be that there is an internal problem that requires repair. Take the projector to your dealer or contact InFocus Technical Support.
Q: How do I install a new lamp? How do I reseat the current lamp?
A: Turn the projector off and unplug it. Let it cool for 60 minutes. Turn the projector upside down on a flat surface. Loosen the three captive screws the fasten the lamp module to the projector.Lift the lamp module out of the projector. Dispose of the old module in an environmentally repsonsible manner.Insert the new lamp into the projector, making sure that the connector inside fully engages. Tighten the three screws. Plug the power cord in and turn on the projector. Reset the lamp timer.
Q: How do I determine the number of lamp hours used?
A: Press the Menu button on the projector keypad. In the Main menu, select About. The number of hours appears in the About window.
Q: How can I maximize my lamp life?
A: Always allow the projector to completely run through its shutdown cycle before unplugging it.
( From the Infocus Projector Lamp Faqs http://www.infocus.com )
Projector Lamp Models from Different Manufacturers
