Night vision and IR LD's

[rog8811]

I have a 70mw green module that is defunct, I was thinking of using my night vision sight to check if the LD is alive.

My question to people who have tried this, is there a danger of damaging the the intensifier tube by doing this? I do not think I would need to be too close or directly in the beam to check it but would rather not trash £150 worth of kit

Regards rog8811

 

[Switch]

You could try it from a safe distance and position to make sure.Or you could just use a cheap camera first. :-/

 

[rog8811]

My only camera is worth more than twice as much as the night vision monocular

Regards rog8811

 

[Switch]

My only camera is worth more than twice as much as the night vision monocular

Regards rog8811

It probably has a good IR filter anyway then What about a webcam, or a phonecam? :-/ But anyway, I think you would be safe if you just don't face the diode while you power it.Maybe just turn it on so that it would shine on an object far away, giving it enough distance to diverge.

OR (just thought of this) you could just stick a piece of black tape very close to it(tention it really well), then close your eyes, and power up the diode.If it made a hole through the tape then it's good A pump diode should be powerful enough to do that.

 

[rog8811]

All good ideas, I think I will just give it a go then....I will post the results next weekend most likely.

Regards rog8811

 

[MERC]

I dont think your night vision monocular will detect infared, if it has a intensifier tube most likly it is the kind that amplifies the small amount of visible light not infared but i could be wrong.

 

[Lorgar]

I dont think your night vision monocular will detect infared, if it has a intensifier tube most likly it is the kind that amplifies the small amount of visible light not infared but i could be wrong.

My NV monocular uses IR as a light source in total darkness. It can also clearly see my 808nM beam in the dark.
Oh as well you need to be very carefull with the NV as a powerfull IR can damage it you have to avoid reflective surfaces if over 200mW output and keep the pinhole cap on

 

[rog8811]

keep the pinhole cap on

You know I had forgotten about that feature, thanks for reminding me Lorgar
....And yes mine has an IR illuminator for zero light situations too....

Regards rog8811

 

[tone1132]

Night Vision Goggles+ IR lasers= awesome!! we use PEQ-4 50mw IR focusable lasers on our M-16A2 rifles while training with NVG's. the camera on my phone can see IR.

 

[darklandz]

so when using an IR laser, u need a camera to see the dot?
but i thought cameras have IR filters in them?

 

[tone1132]

some do, some dont. ive seen people remove them from webcams. my $400 kodak digital camera can see the IR even. but i have a cheap phone that sees it all the same.

 

[Switch]

some do, some dont. ive seen people remove them from webcams. my $400 kodak digital camera can see the IR even. but i have a cheap phone that sees it all the same.

Maybe your camera has a nightshot feature and it needs to be sensitive to IR.I know my digital camera can see IR just as well as the human eye My webcam gets almost blinded by the TV remote emiter though, so if it has an IR filter, it's probably a bad one.

 

[tone1132]

yeah, that would explain it. i hadnt thought of that. thanks