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I have a blu ray running at 24mA, so that should be <5mW correct? Im just wondering if the "safe laser" is always <5mW, or if it is different for different colors. :thinking: It also still seems VERY bright when hitting fluorescent objects. Tried searching but didnt come up with much on if blu...

Alright, so i'm on my 4th PHR and dont know what i'm doing wrong. I have it running off a lm317 driver, set at, and tested at 93mA. Each one died after about 3-5 minutes of use. The driver is fine, and i'm using it to run a red diodes with no problem. Is there anything I need to know about the...

Video Saw this on TV a while ago, and thought it was pretty cool. Anyone know what power lasers he would need to achieve "time travel"? Seems like many of the most powerful lasers they have today! Who knows, in 20 years we could be taking apart media burners to make time machines. :D

As I am joining the Air Force, and leaving for basic in November, I'm curious if anyone one knows if there are any laws regarding high powered lasers in the dorms. I know that there shouldn't be any if I get off base housing, but that is extremely unlikely for my first 6 years. :( Anyone in the...

I bought this laser module and driver for my first blu ray laser. I had already made a dvd burner one, but wanted to make a blu ray laser next. Came in the mail in great time, followed the instruction sheet perfectly, went to turn on the laser and a faint purplish glow. Cool I thought and I...