New Incandescent Bulb Technology

A friend just sent me this article:

http://news.yahoo.com/incandesent-lightbulbs-more-efficient-leds-151047116.html

Kind of interesting to think about a new generation of headlights based on glowing filaments again.

I saw that article, too. It is a similar concept to the Wavien collar. I am looking forward to more info and progress on this.

Cool idea.

Actually, I suppose its a hot idea.

Don't hold your breath though. By the time they have 40% efficient units commercially viable, LEDs may be at 60%.

Lee Dodge said:

Kind of interesting to think about a new generation of headlights based on glowing filaments again.

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I'll have to look at the full article, but it seems that these would be far better for fixed lighting than for automotive use.

Mr. Tone said:

I saw that article, too. It is a similar concept to the Wavien collar.

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No, it isn't. Not even slightly.

Also, the linked article's quality of information is, to use their own phrase, "spotty at best". Read the actual source.

-Virgil- said:

No, it isn't. Not even slightly.

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The concept of recycling wasted light (energy) and directing it back towards the light source is similar. The implementation is very different. They even call it light recycling like Wavien.

Mr. Tone said:

The concept of recycling wasted light (energy) and directing it back towards the light source is similar.

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No, it really isn't -- not unless you zoom out to an unrealistically wide view, about half a step away from saying "Well, it's something to do with light, so it's similar".

Mr. Tone said:

The concept of recycling wasted light (energy) and directing it back towards the light source is similar. The implementation is very different. They even call it light recycling like Wavien.

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The Wavien deals with light at the right frequency that is going in the wrong direction. The subject of the article deals with photons (light) which is going in the right direction but is wasting energy outside the visible range (mostly infrared).
It effectively reduces energy loss from the filament resulting from it being a "black body" radiator.
Dichroic coatings on the front face of a reflector bulb served a similar purpose.