The team from Tech-On has taken the time to teardown two interesting microprojectors. The first model they dealt with was the Optoma PK101. It’s based around a digital micromirror device (DMD) like those used in DLP. separate high intensity red, green, and blue LEDs supply the light source. A fly-eye style lens reduces variations between images. They noted that both the LEDs and processors were connected directly to the chassis to dissipate heat.
The next projector was the 3M Co MPro110. It uses liquid Crystal on Silicon (LCoS) technology. The light source is a single bright white LED. The projector seems to have a lot more provisions for getting rid of heat than the previous one. the most interesting part was the resin polarizing beam splitter. It not only reflected certain polarizations, but also adjust the aspect ratio.
[via Make]