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>>They've already released a product! https://www.eye-power.co.uk/ It's US$72, GB£45.00 I think you've started a run. It's £54 / €64,80 / $86,40 now. Surely e

>>They've already released a product! https://www.eye-power.co.uk/ It's US$72, GB£45.00 I think you've started a run. It's £54 / €64,80 / $86,40 now. Surely even those prices are way over the top?... ----- >LIGHT SOURCE Premium grade 670nm Deep Red LED cluster >TIMER 3 minute session timer with automatic switch off >BATTERY Rechargeable battery with 2 weeks between charges ----- Those specs sound pretty trivial for anyone with a bit of basic electronics nous to knock up. Just how expensive are these "670nm Deep Red LEDs" anyway? Most LEDs cost pennies. So, unless these are something special, I don't see where the cost comes into play. EDIT: A quick search finds 670nm LEDs available for £2,29 each [obviously cheaper in bulk] [0] and Amazon selling a 670nm LED torch for £5,61 [1]. I don't know enough about any of this stuff to know if all 670nm LEDs are created equal and if the ones which perform eye magic are "special" in some way. But it still seems like, if not out and out quackery, then there's definitely some cashing in going on here. [0] https://www.mouser.co.uk/ProductDetail/Lumileds/L1SP-DRD0002000000?qs=OdfJ6WaUL7NR1SNMq6SgGw%3D%3D https://www.mouser.co.uk/ProductDetail/Lumileds/L1SP-DRD0002... [1] https://www.amazon.co.uk/670nM-Flashlight-Against-Deteriorating-Eyesight/dp/B09NDGNVGG https://www.amazon.co.uk/670nM-Flashlight-Against-Deteriorat...

naasking 4y ago
Given the number of scams on Amazon, I would hesitate to trust those wavelength claims.
mrob 4y ago
If you check the datasheets, all the "670nm" LEDs available on Mouser appear to be 660nm LEDs that are specified with a maximum wavelength tolerance of 670nm. I think it's unlikely you'll get any 670nm LEDs if you buy them.
telchior 4y ago
Medical device prices are typically nosebleed high, so a $70 pair of glasses really doesn't strike me as being expensive at all, relative to other devices, even if it only cost them $10 to make. A device mentioned in a different thread recently, that looked like it might be very helpful to me, was $4000 for about $50 (at most) of components.

naasking 4y ago

Given the number of scams on Amazon, I would hesitate to trust those wavelength claims.

mrob 4y ago

If you check the datasheets, all the "670nm" LEDs available on Mouser appear to be 660nm LEDs that are specified with a maximum wavelength tolerance of 670nm. I think it's unlikely you'll get any 670nm LEDs if you buy them.

telchior 4y ago

Medical device prices are typically nosebleed high, so a $70 pair of glasses really doesn't strike me as being expensive at all, relative to other devices, even if it only cost them $10 to make. A device mentioned in a different thread recently, that looked like it might be very helpful to me, was $4000 for about $50 (at most) of components.