http://en.wikipedia.org/wiki/Backlight
Projector housing
Ventilator
Light source module
Illumination system
http://en.wikipedia.org/wiki/Projector
Detection system
Screen data processor
Display device control
Optical device adjustment
Adjusting apparatus
http://en.wikipedia.org/wiki/Optical_fiber
Light cutter
Dust-proof structure
Light guide plate
Projection cooler
Dust-proof filter
http://en.wikipedia.org/wiki/Color_wheel_(optics)
http://en.wikipedia.org/wiki/Heat_shield
