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Ohhhh. It is beginning to make me angry. Mine team not You. Everything I found is bad for them. they really don't know what to get. the problem is that people who knows what is needed have no money. And people with money don't even know simplest things about lasers.

Open area is not equal populated area.

Pw sent.

Best range to be detected. Best power/cash... sorry (I'm no decision maker in that case) Additionally IR seems to be best to avoid atmosphere diffusion. It will be used at about 100m away on detector. Place will be high Arctic like Spitsbergen. Only thing I can follow is IR modified Nikon D3200...

Sorry for that thread. You can left this thread alone. But if anybody wants to help me... After some months or more... I decided: I need most powerful laser and less divergence. Laser wave length should be in CCD response range - best in most sensual range... normal response (350-1200 nm, but...

I can see 500mw 808nm in the room (overcast skies) with no problems.... Looks like dark red.

OK tests made. Not by me. Result is that no matter of wavelength (in normal areas like 300nm-1200nm) the power and divergence is critical. After googling a lot it seems that IR lasers have BEST power/price ratio... So anybody can suggest some good laser at IR (no really matter which wavelength...

Believe me I do. I've also get some informations needed - thanks. It will probably take time to make some decisions. Thanks Guys for help.

Detector will be electronic. Beam expander is an option too. I'm not the only one to work with that - and I was told to get laser. I cannot write too much about it - this is not only my work. Lasers blue/violet and UV are not applicable due to their effects: fluorescence, ionization (but yes...

That's why I've written that IR may not be applicable. But I don't actually know. Those IR I saw had 1,5 mrad -> it gives beam size of ~75 cm: mac:PHP cleverstep$ php laser.php args: <input beam diameter [mm]> <power [mW]> <distance [m]> <divergence [mrad]> <opacity %/km> mac:PHP cleverstep$...

This is basically for lab-like work. It have to travel over 500m in the air, and will be detected on the other side - so divergence is a factor too.

I know that I can buy even 5W IR, the problem is that I'm not sure if IR laser will be OK or not - I will have to ask. I know for sure that green would be OK.

OK, good to know. I've already seen such modules on many websites. Now I know that they're probably the only choice. So we may consider IR lasers - they are cheaper and more powerful.

Hey. I'm not a troll. I just need such laser, and I thought this is a good place to ask. Why 1W? I've bought 808nm laser already.It supposed to be 1W but I've received <500 mW class IIIb which is not enough for my purposes. Ohhhh: it is not really needed to be handheld. And cash.... it's not me...

My IRconverted camera (removed hot mirror from CCD) sees my 0.5W 808 nm laser as very shiny pink light. If I point it on paper's sheet it is clearly visible from the other side by camera.

808 nm 500 mW - laser beam dot is visible as red in darkness (I mean dot on paper - not tried on my eyes directly - probably 500 mW will burn them in just few ms)

Hi, can You suggest some company, website to buy laser: Class: IV (and NO IIIb etc.) Wavelength: Green (or close to green like yellow-green or teal) ideally about 550nm Power: at least 1W, more welcomed And I mean REAL power not china like <1000mW (which is in reality 50mW) Any websites? I've...

Actually I bought the used one - this is just a link pointiong to this laser. Also I've been fooled. This was not 1W laser but 500 mW class 3B. I paid for this (after refund from liar seller) 250 PLN ~= 80 USD. EDIT: It sometimes blink or doesn't work at all, but 80% of time just works. It is...

Fine - I will buy battery charger and make sure it is not battery fault. Also seller told me He sold/packed bad laser (hahaha) And he will return half of price to me. I asked him to send me correct one 1.1W instead, and once received I'll send back 500 mW to Him. But I think He's a liar - and He...

OK, but this is not simple weaker - beam is 100x weaker, or blinks or just dissappears - after about (I don't exactly know) 1-3 minutes, if You want just take a look on movies posted to YT - it happens on all 4 cases. Initially beam is rather powerful - even visible to naked eye - remember this...