I'd love to see the something from Lumie [0] analysed/reviewed like this in the UK. For instance the Lumie Vitamin L [1] is an LED version I'm interested in getting. I suffer for terrible migraine with aura [2] verging on chronic [3] that's started to beat my maximum dose of beta blockers, so I'll try anything!<p>[0] <a href="https://www.lumie.com/" rel="nofollow">https://www.lumie.com/</a><p>[1] <a href="https://www.amazon.co.uk/Lumie-Vitamin-Lightbox-Effective-Therapy/dp/B073P2WNDS/" rel="nofollow">https://www.amazon.co.uk/Lumie-Vitamin-Lightbox-Effective-Th...</a><p>[2] <a href="https://www.migrainetrust.org/about-migraine/types-of-migraine/migraine-with-aura/" rel="nofollow">https://www.migrainetrust.org/about-migraine/types-of-migrai...</a><p>[3] <a href="https://www.migrainetrust.org/about-migraine/types-of-migraine/chronic-migraine/" rel="nofollow">https://www.migrainetrust.org/about-migraine/types-of-migrai...</a>
The conclusion about the UV diffuser isn't quite right. It clearly preferentially attenuates around 365nm for example. Good article and solid conclusion though.
Can anyone tell how to measure the R1-R14 [0] values of a LED lamp? It seems like a sort of a Gretag-Macbeth [1] card is used. Can I use a photospectrometer [2]? I'd like to measure R9 [3] & R13 myself.<p>[0] <a href="http://gc-lighting.com/led-education/lighting-guide/" rel="nofollow">http://gc-lighting.com/led-education/lighting-guide/</a><p>[1] <a href="https://en.wikipedia.org/wiki/ColorChecker" rel="nofollow">https://en.wikipedia.org/wiki/ColorChecker</a><p>[2] <a href="https://en.wikipedia.org/wiki/Spectrophotometry" rel="nofollow">https://en.wikipedia.org/wiki/Spectrophotometry</a><p>[3] <a href="http://leapfroglighting.com/why-the-led-r9-value-isnt-important/" rel="nofollow">http://leapfroglighting.com/why-the-led-r9-value-isnt-import...</a>
Oddly, the article neglects to mention the whole rationale for boosting the blue light in these kinds of therapy lamps: blue light (wavelengths in the low to mid 400 nm range) has the greatest effect on circadian rhythm.<p>Google "blue light circadian" for loads of data.