Sony Japan has developed the world's smallest LED projector.

Two major innovations were made to make the projector smaller. First, three transmissive LCDs serving as display devices and a prism for synthesizing light beams emitted from the three devices are directly coupled together to be a unitary component. Another innovation is that the distance between the LEDs and the display devices are reduced. The projector uses 0.62 inch 800 x 600 transmissive LCDs as display devices. A total of 14 LEDs are used, including four red, four blue and six green diodes. The brightness of the LED reaches 50 lm.