Yes considering the lower sensitivity of human eyes to Deep Red light, I’m curious see how will be the output of the C01R .
I hope the boost driver would be very efficient and optimized for this Red Led
but I don’t expect miracles from an AAA light
Some of you seem to be taking this too seriously, don't you? The eye care thing, I mean. Some people here speak about “permanent damage”, but there's no such a thing unless you are a jinx or just chose to learn from the wrong person. I know what I am speaking of.
Everyone around here has had hair in the crotch for enough time already. Be responsible for what you do, and deal with its consequences. It's that easy.
Sounds :-) sexy.
1 Thank
Your experiment with staring directly at the sun seems quite extreme, I would love to know more. What exactly did you see? How did it progress as you kept doing it, and what happened when you stopped? Why did you stop?
Don’t forget about the eye safety. Higher power is not necessary the best and can harm eyes because we can’t see it well and can’t react appropriately.
Just make sure it’s intrinsically eye safe even at the minimal distance.
That happened nearly 11 years ago. What I saw was not of this world, or what others would call hallucinations. By the time I often painted the town red on weekends, and it involved the use of research chemical substances (in early 2008 I was one of the mephedrone pioneers in my country, daring to get a 100g bag of that :facepalm: «lovely» substance). I had already attended drug rehab centers, plus many visits to the hospital caused by overdoses, when that happened. It was a @#$% time. Luckily, years later I could reprogram my mind to dismiss the involved negative entities (with paid help).
The progress of the illness was quite fast, although not evident at first. It settled quite fast once I started to notice it, with a prominent small blot in the center of my eyesight and perceptible barrel distortion. To be able to read I learned to focus close to what I needed to read, i.e. when reading from my laptop screen I focused over some letter or word but actually read a tiny word or 2/3 letters before or after. Of course, :facepalm: I stopped doing that!
Wed, 07/01/2020 - 21:59
So, can the WK30's red frequency be beneficial in light of the subject here? ;)
Thanks for the lead, I just ordered one online. Curious is Sofirn a reputable company? I’d hate to zap my eyes with a questionable product. Newb question, but how would we confirm it is indeed a 660nm?
Hi, Here is what I put together. LED670L - 670 nm LED with a Glass Lens, 12 mW, from Thor Labs. Was like $12 bucks (but shipping was $10) https://www.thorlabs.com/thorproduct.cfm?partnumber=LED670L (Great company, sent free snack pack w/ with my order!) Then I used an old LED flashlight I already had, and mounted the LED670L in it..... Seems to work fine, Then I just added a tube made from aluminum foil tape with the white backing paper still attached on the inside. Will be starting 3 min a day per the article ..... I got it because it was advertised as the 670nm that the article said was used. Here are some pics !https://drive.google.com/file/d/1LmXBZGzt4Pz0pPhUL4P05FrvU4zj2ZPP/view?usp=sharing! https://drive.google.com/file/d/1LS-1QxV1utUEvRNltTPIGL0ClRYqoI5w/view?usp=sharing https://drive.google.com/file/d/1PRrNdLYUNKry1AfkCcXb_1JBviGd3Opg/view?usp=sharing https://drive.google.com/file/d/1_wgNS3Qqy41LoMLZ8vJaHvq0Cu5kTwNr/view?usp=sharing
Looks nice!
I have some more info that may be help you get closer to that study light. In the light they made for the study, the tube attached to the light was designed to keep the light source around 6cm from the eye. Also they also put a diffusion filter into the tube, so you don’t see the point of light.
Funnny, from loking at the picture of the light used in the research, I never would have guessed it was a big showerhead model.
why can’t we just use a zebralight photo red (i could have sworn i just typed that, but my post disappeared). website sez it’s in the 650-670nm range
This is one case — perhaps the only case — in which the showerhead full of 5mm LEDs is better than the equivalently bright single bright chip LED
because the goal is to spread the light across the retina, not produce a single bright point that’s in focus on the retina.
Same reason that LEDs can cause eye damage generally — the eye’s lens focuses the point source LED into a point on the retina.
I’d like to know where to buy a photo red showerhead light, now that I know the researchers used a multiple-LED red light.
EDIT
aha, there’s an AC version: https://www.google.com/aclk?sa=l&ai=DChcSEwj7g8KspbTqAhUmHq0GHRQ_BpsYABBRGgJwdg&sig=AOD64_0wTbmj-ZBY6CB7YjG9ZKYzo_TASw&adurl&ctype=5&ved=2ahUKEwiNrLWspbTqAhXNFzQIHYBQBgwQ8w56BQgBELwB
21W Deep Red 730nm 660nm 630nm LED Lamp Light Bulb PAR30 E26 E27 Aquarium Plant
Thanks for sharing this info! Very interesting.
Hank is offering SST-20 red emitters with his lights. I might have to grab one.
And lo, it turns out red light is ideal for working at night in your henhouse!
Would this work?
Saw it on eBay. Described as Sofirn C01R Red light Keychain Flashlight Cree XPE2 660nm Deep RED LED bulb
Original CREE XPE2 Photo Red (650-670nm)
https://www.ebay.com/itm/Sofirn-C01R-Red-light-Keychain-Flashlight-Cree-XPE2-660nm-Deep-RED-LED-bulb/383616336767
The Sofirn C01R has been community developed in cooperation with Sofirn. You can check the thread: [Shipping now] Sofirn C01R - XP-E2 deep red AAA keychain flashlight
Whether the flashlight works, I am pretty sure. Any other answer, you should know by yourself. ¯\_(ツ)_/¯
[quote=Barkuti]
LOL! As everything in life, right? Thank you - new to the subject so appreciate your experience.
some additional info about which red can and cannot degrade Rhodopsin
“Rhodopsin’s detection frequency goes down to about 610nm.”
“Cockpit Illumination: The use of red light (wavelength greater than 650 nanometers) for illumination of the cockpit is desirable, because it, like red goggles, does not affect dark adaptation. “
“670nm deep red led helps eyesight “
Psychodelic Sun experiment:
hold head up with eyes toward bright sunlight, eyelids closed and relaxed: seeing light red.
with eyebrows raised to thin the eyelids: seeing yellow.
with eyelids squeezed shut tightly: see dark red toward magenta.
with relaxed closed eyelids and moving hands with open finger spacing to create an oscillating shutter of the sunlight as it hits the eyes and vary the frequency of the shutter: causes strange symetrical images and shapes with changing colors—a psychodelic effect.
years ago i paid $10 to sit in a recliner and wear a pair of relaxation glasses with closed eyelids for 10 minutes. They were a plastic eyeglass frame with white LEDs attached along the rims. The lights would pulsate in different sequences and frequencies to create colors and images such as the shutter effect while facing the sun. It is a very relaxing experience.
So nobody has found the supplier of the multiple-LED far red flashlight the researchers used. Brief exposure several times a day improves some aspects of vision
We’ve got the Sofirn 1-LED penlight close to the same wavelength
We’ve got the AC-powered multi-LED red light from eBay, which would suffice for room lighting I guess
Anything else? I”m still real unclear about exactly what vision changes are anticipated:
I haven’t found a clear definition of retinal sensitivity.
AHA, the Internet has accumulaed more information since I last looked
Thank you Slashdot.