will these be sufficient to experiment with a 1W 808nm diode?

[terramir]

Hi I'm terramir,
new here and well I want to do some experiments with a 1w or 2w max 808nm laser diode.
impulsively I bought this ebay link here figuring safety first.
long story short will these be sufficient to protect my eyes and how do I make sure without endangering myself since 808nm is not really visible what is visible is the outer end of the bell curve. point the thing at a thermistor at 10% power and see if the temp doesn't rise or what? with and with out the glasses inbetween the beam? and while doing the experiment how do I protect my eyes?
well a newbie asking for help
terramir

 

[Bionic-Badger]

No idea if those particular goggles are good, but the blue filter would probably be hard to see things through. Supposedly Eagle Pair goggles are decent for their price. You may also consider getting a pair of goggles that covers for DPSS laser wavelengths that utilize those IR lasers, so that if you do alignment or something you can be protected for those as well (though they're hard to see through too).

 

[terramir]

actually the only laser I want to work at this time with are ir lasers and only those that have a dim visible spectrum with-in their bell curve. Why? because I need to be able to adjust the dot to the smallest size possible but what I want to do requires heat energy above anything else and since flat black absorbs the ir spectrum real well it has a chance of working. question cameras usually have an ir filter, however it is not usually perfect, if I used a cheap digital camera with a screen do you think I have a chance to use it to help me focus the dot as well as run tests (of course I would need to block the manual view finder and rely on the screen and put something like a hood on it to ensure the only thing I can see is the camera screen. was thinking this would be a way since I already bought those glasses to be able to test them out safely, also it might be a way regardless of the glasses (visabillity factor) if I use the camera's screen functions to adjust the spectrum to adjust the dot even if I might not be able to see it through the glasses. if they work too well i.e. block the ir and the visible red light it emits with-in the bell curve.
Any input would help
terramir

 

[Fiddy]

So what experiment are you trying to do?

I use the OEM Lasers glasses, they are really good and have OD Vs Wavelength graphs available for each pair of glasses.

 

[Bionic-Badger]

Well that depends actually. 808nm is sometimes reflected by certain dark surfaces. The main benefit of the 808nm is just its ability to go to higher powers. If you're burning organic stuff, a 405nm laser might be a good choice too.

Yes, a camera would be a better way to focus those diodes, since they're pretty good at detecting IR even with the cut filter, whereas your eyes just can't see IR that well no matter what. A webcam can work too.

I like OEM goggles as well, and have goggles that protect against IR from them, but sometimes the price scares off would-be laser safety fans.

 

[terramir]

what I'm trying to do is mount a laser with a heatsink and fan inside a box with two axis x & y at a fixed height to be determined experimentally with the smallest possible dot to burn off flat black spray paint off pcb's so I have a etch mask, maybe in future it will also do the same for glass in the end it will be inside a box that in order to be opened will have to turn off the power I.e. a hardwired lock and switch so no one can fuck themselves up.
So the question still remains are the glasses i bought in the link above any good and if no one can aswer that, can they answer how I can test them to ensure they are any good safely?
terramir