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Re: FOR SALE-405nm Goggle $35 (3 left)(Laser-Wave)
[highlight]AWESOME![/highlight]
[highlight]AWESOME![/highlight]
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rocketparrotlet said:That looks like a pretty crappy VLT to me...you can barely see green!
-Mark
Krutz said:thats exactly my thought.
405nm custommade, i hoped for something like >90% above 450nm. or even above 420nm, for those googles being perfect. anyway, i expected a sharp cutoff in the blue, and no slow climbing way into the green, perhaps through the whole spectrum!
my cheapo sunglasses are yellow, you see the same brightness through them, just yellow tinted. they filter *all* 405nm out, absolutely no fluorescence when these glasses are in between. i see the yellow pollution-light emitted from 405nm diodes. i have a normal seeing-impression with these. all for around 10$. seeing the custommade googles now, i am instantly sober.
dont get me wrong: you did a great job, josh. you invested quite some time, and got some great thing done: the first custommade lasergoogles ever (i know of), and one of the first 405nm protection too. eyesight will be saved because of your effort.
of course i will take the three googles i ordered. of course people will have to wear them, when watching me do funny things with violet light. but if those are as i believe, i will look for other ways to enhance fluorescence-visibility, i.e. looking for yellow-tinted sunglasses which stand 100mw+ radiation for minutes, filter 405nm well enough, and cover my eyes entirely. the three i will get from you will just be protection.
i had a look through the two threads about these googles. nowhere was stated anything about "sharp cutoff" or "enhance fluorescence visibility". it was "high OD protection from 405nm" all the time.
Josh, could you ask bridge for a full-spectrum plot of the transmittance? at least up to 700nm, better for up to 1070nm?
who knows, perhaps these are the first multi-wavelength-googles which cover all common hobbyists' wavelengths, infrared, and have a high OD for red too?
one more question: are these dye-based, like the energy gets absorbed through the whole thickness of the plastic, or are they dichroic-based, like reflecting off the violet stuff from the coating? meaning that a scratch would render the googles useless, and that it reflects high energy laserbeams through the room in an unpredictable way. the images look like the latter, with such high reflectance, almost mirror-like?
noone knew how they really would turn out, and i'm still happy to get those, and again, thank you, Josh for this!
manuel
GeneralSpecific said:some printers use a combination of RGB to produce black...
That's why I like color laser printers! no ink to dry out over time, and lower cost of ownership.
...you got mine printed, right? ;D
Krutz said:thats exactly my thought.
405nm custommade, i hoped for something like >90% above 450nm. or even above 420nm, for those googles being perfect. anyway, i expected a sharp cutoff in the blue, and no slow climbing way into the green, perhaps through the whole spectrum!
my cheapo sunglasses are yellow, you see the same brightness through them, just yellow tinted. they filter *all* 405nm out, absolutely no fluorescence when these glasses are in between. i see the yellow pollution-light emitted from 405nm diodes. i have a normal seeing-impression with these. all for around 10$. seeing the custommade googles now, i am instantly sober.
dont get me wrong: you did a great job, josh. you invested quite some time, and got some great thing done: the first custommade lasergoogles ever (i know of), and one of the first 405nm protection too. eyesight will be saved because of your effort.
of course i will take the three googles i ordered. of course people will have to wear them, when watching me do funny things with violet light. but if those are as i believe, i will look for other ways to enhance fluorescence-visibility, i.e. looking for yellow-tinted sunglasses which stand 100mw+ radiation for minutes, filter 405nm well enough, and cover my eyes entirely. the three i will get from you will just be protection.
i had a look through the two threads about these googles. nowhere was stated anything about "sharp cutoff" or "enhance fluorescence visibility". it was "high OD protection from 405nm" all the time.
Josh, could you ask bridge for a full-spectrum plot of the transmittance? at least up to 700nm, better for up to 1070nm?
who knows, perhaps these are the first multi-wavelength-googles which cover all common hobbyists' wavelengths, infrared, and have a high OD for red too?
one more question: are these dye-based, like the energy gets absorbed through the whole thickness of the plastic, or are they dichroic-based, like reflecting off the violet stuff from the coating? meaning that a scratch would render the googles useless, and that it reflects high energy laserbeams through the room in an unpredictable way. the images look like the latter, with such high reflectance, almost mirror-like?
noone knew how they really would turn out, and i'm still happy to get those, and again, thank you, Josh for this!
manuel
rocketparrotlet said:[quote author=Krutz link=1222101905/180#185 date=1226856467]thats exactly my thought.
405nm custommade, i hoped for something like >90% above 450nm. or even above 420nm, for those googles being perfect. anyway, i expected a sharp cutoff in the blue, and no slow climbing way into the green, perhaps through the whole spectrum!
my cheapo sunglasses are yellow, you see the same brightness through them, just yellow tinted. they filter *all* 405nm out, absolutely no fluorescence when these glasses are in between. i see the yellow pollution-light emitted from 405nm diodes. i have a normal seeing-impression with these. all for around 10$. seeing the custommade googles now, i am instantly sober.
dont get me wrong: you did a great job, josh. you invested quite some time, and got some great thing done: the first custommade lasergoogles ever (i know of), and one of the first 405nm protection too. eyesight will be saved because of your effort.
of course i will take the three googles i ordered. of course people will have to wear them, when watching me do funny things with violet light. but if those are as i believe, i will look for other ways to enhance fluorescence-visibility, i.e. looking for yellow-tinted sunglasses which stand 100mw+ radiation for minutes, filter 405nm well enough, and cover my eyes entirely. the three i will get from you will just be protection.
i had a look through the two threads about these googles. nowhere was stated anything about "sharp cutoff" or "enhance fluorescence visibility". it was "high OD protection from 405nm" all the time.
Josh, could you ask bridge for a full-spectrum plot of the transmittance? at least up to 700nm, better for up to 1070nm?
who knows, perhaps these are the first multi-wavelength-googles which cover all common hobbyists' wavelengths, infrared, and have a high OD for red too?
one more question: are these dye-based, like the energy gets absorbed through the whole thickness of the plastic, or are they dichroic-based, like reflecting off the violet stuff from the coating? meaning that a scratch would render the googles useless, and that it reflects high energy laserbeams through the room in an unpredictable way. the images look like the latter, with such high reflectance, almost mirror-like?
noone knew how they really would turn out, and i'm still happy to get those, and again, thank you, Josh for this!
manuel