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The laser doesn't illuminate the road directly; it excites a phosphor puck that lights up white and is then focused and aimed like a regular incandescent filame
by jloughry 8y ago
The laser doesn't illuminate the road directly; it excites a phosphor puck that lights up white and is then focused and aimed like a regular incandescent filament or gas discharge arc. Just like white LEDs, only much more efficient.
- csours 8y agoCool! Any reference for this?
- jloughry 8y agoHere's the most recent article I've seen: https://www.designworldonline.com/energy-efficient-lighting-with-laser-diodes/ https://www.designworldonline.com/energy-efficient-lighting-... Near the end of the article is a diagram of the new SDL (Dr. Shuji Nakamura's new company) laser diode, phosphor, and beam dump in an SMD package.