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Alot of these devices are quite expensive. Would it be possible to purchase the LEDs and create a sort of guerrilla red light therapy device?
by Two_hands 2y ago
Alot of these devices are quite expensive. Would it be possible to purchase the LEDs and create a sort of guerrilla red light therapy device?
- 4gotunameagain 2y ago670nm is 670nm, no matter the marketing and/or medical certifications & approvals
- itishappy 2y agoIn theory. In practice without testing there's no guarantee you're getting only 670nm light. I can make a brilliant 670nm source that also douses you with 385nm light.
- 4gotunameagain 2y agoNot really. In practice, the vast majority of LED producers provide the Spectral Power Distribution in the datasheet.
- itishappy 2y agoAgreed, but I'd also argue that's what medical certs and approvals are doing in this setting.
- deleted 2y ago[deleted]
- melbourne_mat 2y agoA spectroscope is a handheld optical device which allows you to see the light distribution coming from a light source. Should be able to pick one up for under a hundred bucks.
- itishappy 2y agoI've actually looked into this in the past (for measuring the spectra of LED bulbs), but they're significantly more expensive than I expected! Gratings are cheap, but digital models seem to run upwards of $2k. Any suggestions for midrange models would be appreciated!
- 4gotunameagain 2y agoMid level, $750: https://www.aseq-instruments.com/LR1.html https://www.aseq-instruments.com/LR1.html Entry (?) untested, $350: https://thunderoptics.fr/product/sma-e-spectrometer/ https://thunderoptics.fr/product/sma-e-spectrometer/
- itishappy 2y agoThank you!
- melbourne_mat 2y agoSave money and go analog! Calibrate against a known spectrum. One example would be a sodium vapour street light but there aren't as many around these days.
- moffkalast 2y agoGuerrilla? Like you mean to jump out of tree cover and shine red light at people randomly?