Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

No abstract

The advent of affordable direct diode lasers changes all the rules for optical designs and the associated technologies that generate the images from the laser light. We foresee these new lasers as driving fundamental changes in the size, power consumption, cost, resolution, and even the uses for pico projectors. This paper discusses these topics from the perspective of laser light illuminated LCOS microdisplays.