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Laser "Enhancement" Glasses

rhd

rhd

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Yea for those special occasions when you usually don't get blinded by getting hit in the eye with a laser for a split second.
 
No, dummies, it's for all the spies, ninjas, jewel thieves, secret agents who need to
see the beamz to avoid setting off the alarmz.
So they don't need no cigarettes or aerosol cans anymore.

I wonder if it has any effect though.... :thinking:
EDIT:
These appear simply to be cheapo, uncertified, blue and green protection goggles.
 
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anselm said:
These appear simply to be cheapo, uncertified, blue and green protection goggles.
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I think you're right, but I don't even think that works. I just gave mine a shot, and looked at a ~300mW beam. No difference. In fact, since since everything gets a red tint, the red beam itself becomes less distinct. Visibility-wise, nothing changes.
 
Hey, anything to make a buck on the flea bay, right? Like PT Barnum said, theres a sucker born every minute.
 
My wife, who isn't knowledgable about these things, actually bought me a set of these red goggles along with a "200mW" green laser which was maybe 30 mW on a good day. The greenie died within a few weeks, but the goggles are actually pretty decent. They fit over my glasses, which is more than I can say for a lot of others I've tried. While it lasted, the green laser's dot was almost invisible with the goggles. I still use them with my Arctic 445nm and plan to use them with my O-like 200mW when it arrives. Without a meter I can't review these goggles for attenuation, but my Mark I eyeballometer tells me that they have a lot.
 
Actually glasses like that are used for things like laser levels where you want to be able to see where the beam is. If you ever watch real home improvement shows and not the crap on TLC you see contractors using glasses like that fairly often.
 
LtKernelPanic said:
Actually glasses like that are used for things like laser levels where you want to be able to see where the beam is. If you ever watch real home improvement shows and not the crap on TLC you see contractors using glasses like that fairly often.
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Stuff on TLC is real?

Seriously though. Think about it. By using red glasses to try and see a red beam, your seriously decreasing the contrast ratio your seeing.. Picture it like this. From a distance, would it be easier to see a red stripe on a green background, or would it be easier to see the same red stripe on a slightly different color red background?
 
I got glasses like this with laser levels. It has even label 'not laser protection glasses'. It's optical quality is poor, it passes about 10% of blue and green. It does help in seeing red line from the levels, but only marginally. I've removed the line generating grating from the levels (that's why I bought it, it was very cheap), and I use it with my 400mW green. Works great.
I dumped the glasses.
 
qumefox said:
By using red glasses to try and see a red beam, your seriously decreasing the contrast ratio...
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That might be true, but on the other hand you're dimming the environment without dimming the laser. Just a thought.
 
I agree with qumefox, trying to see a red laser with red glasses sounds dumb
 
mod101 said:
I agree with qumefox, trying to see a red laser with red glasses sounds dumb
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Mmmmm, maybe not so dumb. Think about it: if you had glasses that diminished the laser dot brightness but nothing else, it'd be very hard to spot the dot. If, on the other hand, you had glasses that diminished everything else by 90-95% but left the dot at full brightness, the dot would shine brightly against the background. I'm gonna agree with Cyparagon - these glasses will make a red dot easier to see. I can vouch from personal experience that they make a green or blue laser dot almost invisible.
 
Your forgetting the application of this thread. which is dealing with things like laser levels. You don't want to see just the line.. you want to be able to see EVERYTHING.. I still think they're pointless and I actually played with this some today.. I can tell you that my argon safety goggles (red lenses, btw.. for those who don't know what the common argon wavelengths are) and I can tell you it in no way made a 650nm dot any easier to see outdoors.. for me anyway.
 
MassLaserGuy said:
...glasses that diminished everything else by 90-95% but left the dot at full brightness...
Click to expand...

The problem is that they just don't work like that in practice. I'm not entirely sure why from a theoretical perspective, because what you're saying does make sense.

Although these red glasses really only block about 40% of the visible spectrum. I suppose if you could find glasses that would block everything but the 650 to 670 nm range, then it might work. But in practice, these don't help red beam visibility at all - and actually make it more difficult to spot given that they reduce colour contrast.
 
These things work wonders for seeing laser levels. Don't knock them till you try them.

Back when I helped my dad with general construction stuff we used a laser level to square out the floor joists for a shed. The red dot was not visible under daylight conditions at 30 or so feet, but with these glasses on it makes the dot a lot more visible. No, it doesn't make the beam visible, it just makes the dot stand out more.

You wouldn't want the glasses to block everything but 660nm, because chances are what you are trying to level/square is not red. What's the point of seeing only the dot or line of the level?

DeWalt DW0714 - Laser Enhancement Glasses

These are the glasses I used, plus they have the added benefit of blocking almost all 532 light. I used them as green safety glasses back in the days when "proper" safety glasses were around 100 bucks. Say whatever you want, but these things block every bit of my 125mW CNI pen.
 
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