Johnyz
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YouTube - World's Most Powerful Handheld Laser - Review & Giveaway!
This has left me speechless. Is he going to give 2 of those to people that (probably) don't know anything about laser class 4 safety and/or blue light hazard?
About the lens caps, it's some easy maths.
Assuming it's underspec. (900mW) Probably not exact, these caps are not $10000 lab grade optics, are they?
Line effect: 900mW split into 1m line 1mm thick = 0,9mW per square milimeter. Class 2 SAFE
Cross effect: Same as above, but split into two lines = 0,45mW per square milimeter and 0,9mW in center. Class 2 SAFE
"Galaxy" lens: Probably 16x16 = 256 indvidual dots = AVEARGE 3.51 mW per dot. Almost surely there are over 5mW dots in the center. Class 3B/R UNSAFE
Focusing lens: No shit, Class 4 danger.
Flashlight and floodlight: Turns laser into a regular blue light, safe and probably unmeasurable. Class 0
Training lens: They reduce 80% but there's still 80mW left. Class 3B UNSAFE
This has left me speechless. Is he going to give 2 of those to people that (probably) don't know anything about laser class 4 safety and/or blue light hazard?
About the lens caps, it's some easy maths.
Assuming it's underspec. (900mW) Probably not exact, these caps are not $10000 lab grade optics, are they?
Line effect: 900mW split into 1m line 1mm thick = 0,9mW per square milimeter. Class 2 SAFE
Cross effect: Same as above, but split into two lines = 0,45mW per square milimeter and 0,9mW in center. Class 2 SAFE
"Galaxy" lens: Probably 16x16 = 256 indvidual dots = AVEARGE 3.51 mW per dot. Almost surely there are over 5mW dots in the center. Class 3B/R UNSAFE
Focusing lens: No shit, Class 4 danger.
Flashlight and floodlight: Turns laser into a regular blue light, safe and probably unmeasurable. Class 0
Training lens: They reduce 80% but there's still 80mW left. Class 3B UNSAFE
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