Microvision's current pico projection engine uses red and blue laser diodes and a frequency-doubled "synthetic" green laser to create a full color image.

ENGADGET: Microvision integrates direct green laser into pico projector prototype, completes RGB achievement

You can count up 5.8 million BTUs (that's how many BTUs a barrel of oil yields) from a wood stove, or a diesel engine, or a microprocessor, or a laser.

FORBES: Demand-Side Economics

Thus, Canon's core engine technologies still hold nearly 60% of the laser-printer market, including machines sold through an alliance with Hewlett-Packard.

ECONOMIST: Canon