Laser diode lightbulbs?

[Vidal Wolf]

Interesting story.

http://www.earthtechling.com/2011/11...-against-leds/

remember the cold war era when they had the 20 thousand dollar hammer and the 30 thousand dollar toilet seat?
I wonder how much this is going to cost taxpayers -

[White-Light]

Why is it always presumed that people prefer warm white?

When I buy energy saving bulbs I always buy the cold white as the icy white is a lot more sexy that than horrid yellow glow.

Maybe the cost of yellow diodes means we'll see cold white 1st.

[Stoney3K]

Maybe the cost of yellow diodes means we'll see cold white 1st.

I doubt these 'light bulb' modules will be driven RGB.

Since you don't need (or even want) a collimated beam if you want to replace a light source, it's a lot more cost effective to use a fat beam 445 and a fluorescent layer on the outside of your bulb.