Projection device/circuit board module
Dedusting module/projection device
Array lens module
Light source regulating in projection device
Projection device
Optical element adjusting
http://en.wikipedia.org/wiki/Polarized_3D_system#Linearly_polarized_glasses
Multimedia projector
Optical projection/lens adjusting
Side-entry backlight module
Brightness adjustment in projecting
Projection system
Color wheel module/projecting
http://en.wikipedia.org/wiki/Stereoscopic_Displays_and_Applications
Projector/light source
Illuminating system/projecting apparatus
Illumination system/projection device
http://en.wikipedia.org/wiki/Thermal_management_of_electronic_devices_and_systems
