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FrozenGate by Avery

Question About Getting Blue Lasers

yeah ima bring my lasers to school, and my crack, and my glock! I know I will win show and tell fo sho! haha. but for real. listen to the advice, and what they are saying is pretty blatant. If you are persistant on blue or violet, you will not see the beam with a 405nm (violet) IN THE DAY, with lasers we have on hand today, and 445nm to be able to see pretty well i would say 2 or 300mW and up. and 445, you will only get close to $100 price tag if you build it 110% yourself, cause with 445, a diode is $45.00 wether you want it to output 200mW or 2,000mW. The driver which gives you your "choice" of power, always will be the same price.
 





You can purchase a pre-set driver with the mAs set at laser threshold- I have one in a mini handheld 3VDC spiro that is <200mWs.(thanks yobresal).

hak
 
DJNY said:
This chart describes it quite well

visible_light_spectrum1.png
Click to expand...

Lol i always thought blue-ish was the easiest to see. I wonder why the airstrips dont have green lights lining the sides.
 
ha-HAH!
Well, you see that's not the whole story....
the color response curve is different for daylight conditions or night adapted vision.
Luminosity.png

Photopic vision in black. (normal light conditions)
Scotopic vision in green. (low light conditions)
 
anselm said:
ha-HAH!
Well, you see that's not the whole story....
the color response curve is different for daylight conditions or night adapted vision.
Luminosity.png

Photopic vision in black. (normal light conditions)
Scotopic vision in green. (low light conditions)
Click to expand...

The peak is nowhere close to blue light lol. Airstrips should have green lights instead :]
 
Runway marker lights are color coded. Different colors mean different things, and it's a standardized system. The colors are already most appropriate for their functions and meanings... Trust me, as critical as things like these are, any possible improvements in the color scheme would have been enacted long ago.
 
qumefox said:
Runway marker lights are color coded. Different colors mean different things, and it's a standardized system. The colors are already most appropriate for their functions and meanings... Trust me, as critical as things like these are, any possible improvements in the color scheme would have been enacted long ago.
Click to expand...

Thanks for telling me. Everything is just so blue around here :]
 
That's correct. Blue denotes taxiway borders. Active airstrips should not have blue lit borders.
 
Blue are 'end of field' markers or, as stated, taxi-way highlighters. They use Blue to be noticable, but not 'distracting'. Check out the pilot's handbook available as a pdf at the FAA web site.
 
123splat said:
Blue are 'end of field' markers or, as stated, taxi-way highlighters. They use Blue to be noticable, but not 'distracting'. Check out the pilot's handbook available as a pdf at the FAA web site.
Click to expand...

I guess that solves the problem.
 
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