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Ann R. Thryft
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Re: Great innovation
Ann R. Thryft   1/16/2013 12:16:55 PM
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The history lesson I was referring to was the unit of millions, not a thousand, years: just a few orders of magnitude, that's all! Re what makes some of us more sensitive to colored light than others, I don't know and I'm not sure it's been looked into. There are many variations like that among humans that haven't been studied much. If anyone does know about this one, I'm interested in learning.

Elizabeth M
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Re: Great innovation
Elizabeth M   1/16/2013 7:11:36 AM
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Indeed, Ann, a bit of a history lesson is necessary...I guess I never thought about why many humans are so adverse to harsh light but it certainly makes sense! Not to mention the associations with bright white lighting (hospitals, as mentioned, and to me they also remind me of unpleasant days in a school room!). What is it exactly that makes some of us sensitive to light color and others not so much, do you know?

Ann R. Thryft
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Re: Great innovation
Ann R. Thryft   1/15/2013 12:12:12 PM
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This is potential good news for those of us who are sensitive to light color--not everyone is, it turns out. Those greenish CFLs make everyone look like zombies to me, and harsh LEDs give me a headache. But NXP's Surdeanu needs a history lesson: we're used to the warm light of the sun and firelight after a few million--not a thousand--years. And that's what natural spectrum lights are all about--they emphasize the reds we're wired for.

TJ McDermott
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Re: Great innovation
TJ McDermott   1/15/2013 12:10:25 PM
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Elizabeth, I agree - I much prefer the warm yellow light offered by incandescents.  I look forward to this technique being offered in the very near future.

naperlou
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Engineered innovation
naperlou   1/15/2013 10:08:03 AM
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Chuck, this is a good example of an engineered innovation.  By putting together these three aspects of the LED lighting they are able to come up with something that consumers actually want.  Unlike older lighting technologies, LED lighting is more highly engineered.  There are a lot mote parameters that can be controlled.

Elizabeth M
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Great innovation
Elizabeth M   1/15/2013 5:13:07 AM
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This is a great innovation. I personally try to use more energy efficient light bulbs but am one of the people that doesn't like that harsh light--I prefer dim lamp lighting or candles to the "hospital white" mentioned in the article. If I and others like me could have the best of both worlds this would really catch on.

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