Abstract
A novel light luminaire is proposed and experimentally analyzed, which efficiently mixes and projects the tunable light from red, green and blue (RGB) light-emitting diodes (LEDs). Simultaneous light collimation and color mixing is a challenging task because most collimators separate colors, and most color mixers spread the light beam. Our method is simple and compact; it only uses a short light pipe, a thin diffuser, and a total internal reflection lens. We performed an experimental study to find a balance between optical efficiency and color uniformity by changing light recycling and color mixing.
Original language | English |
---|---|
Pages (from-to) | A75-A84 |
Journal | Optics Express |
Volume | 20 |
Issue number | 101 |
DOIs | |
State | Published - 2 Jan 2012 |