Your eye has an optical gain of 100,000 for blue light. 1W/CM2 will be focused to 100KW/CM2 on your retina, causing permanent damage in microseconds. Your blink reflex is >.25 seconds. You AND THOSE AROUND YOU must wear protective eyewear that is rated to protect against 445nm. Guess what? If you are wearing protective eyewear with the appropriate filter, you will not see your laser beam at all. There is no reason in the world for anyone to play with one of these. THIS IS NO TOY!
I realize the dangers of a device like this. Direct unprotected exposure will result in permanent eye damage.
As for safety, no one else was around when I performed these tests. I'm also using a pair of laser goggles designed to protect against this wavelength. The beam is certainly NOT visible through the goggles, and the dot is very faint. In addition, the beam was never at eye-level and the test was done in my back yard. As a laser hobbyist, I'm very careful with my lasers.
@lasersafe that's actually not true. There has never been any evidence or scientific study on the effects of blue laser light on the eye. I look at mine all the time, I see perfectly fine lol.
@Shakeitupyes. Wrong. Research is constanlty being done on eye exposure. I could show you pictures of retinal damage to a rhesus monkey that was exposed to 10mW of 532nm light for 0.25 seconds. 440nm is even more energetic for biological damage, and these lasers are 100 times more powerful than a 10mW laser. I'm glad you are so smart to look at these lasers. Darwin was right.
I'm honestly surprised the laser makes that much heat. The wick was already black which helps but thats still impressive :) How much did you pay for the whole build?
So you can turn blind from looking at the dot of a laser? Or was that lasersafety person talking about pointing it straight in an eye ball
ccarazay 2 months ago
This has been flagged as spam show
search youtube for:
1000mW 447nm Waterproof Adjust Focus Blue Laser Pointer Pen
is it really 1000mw?????
liranxs 1 year ago
Comment removed
993t 1 year ago
Sweet. Last time I saw your lasers (after frosh year of college) you were just doing match heads ;)
993t 1 year ago
Your eye has an optical gain of 100,000 for blue light. 1W/CM2 will be focused to 100KW/CM2 on your retina, causing permanent damage in microseconds. Your blink reflex is >.25 seconds. You AND THOSE AROUND YOU must wear protective eyewear that is rated to protect against 445nm. Guess what? If you are wearing protective eyewear with the appropriate filter, you will not see your laser beam at all. There is no reason in the world for anyone to play with one of these. THIS IS NO TOY!
lasersafe 1 year ago 8
@lasersafe
I realize the dangers of a device like this. Direct unprotected exposure will result in permanent eye damage.
As for safety, no one else was around when I performed these tests. I'm also using a pair of laser goggles designed to protect against this wavelength. The beam is certainly NOT visible through the goggles, and the dot is very faint. In addition, the beam was never at eye-level and the test was done in my back yard. As a laser hobbyist, I'm very careful with my lasers.
x101xtreme 1 year ago 14
@lasersafe that's actually not true. There has never been any evidence or scientific study on the effects of blue laser light on the eye. I look at mine all the time, I see perfectly fine lol.
Shakeitupyes 6 months ago
@Shakeitupyes. Wrong. Research is constanlty being done on eye exposure. I could show you pictures of retinal damage to a rhesus monkey that was exposed to 10mW of 532nm light for 0.25 seconds. 440nm is even more energetic for biological damage, and these lasers are 100 times more powerful than a 10mW laser. I'm glad you are so smart to look at these lasers. Darwin was right.
lasersafe 6 months ago
Do you build for other people or know where I can get the specs to do it
Gaffanon 1 year ago
@Gaffanon
Google laserpointerforums and check out their Tutorial section. Everything you need to know to build one is right there.
x101xtreme 1 year ago
Total Cost was $232
Diode+18650 battery: $50
405G1 Lens: $55 (15% higher output than the aixiz 405-445nm glass lens.
Jayrob Kit with microboost drive: $112 (could've been cheaper had I opted for an aluminum heatsink and got the driver myself.)
Aixiz Module: $5
Charger: $10
x101xtreme 1 year ago
I'm honestly surprised the laser makes that much heat. The wick was already black which helps but thats still impressive :) How much did you pay for the whole build?
lasermole1 1 year ago