Rayfoss 200mW Focusable Laser Torch - Extensive Review

good review?... one question... can you have 0.5mrad? i think yes.. because if tou can FACUS the laser for example at about 10.. 20 centimeters... you CAN surely ( while you focus the point at 50cm.. 1 meter... ecc) find a moment in which the beam is with an EXTREME LOW divergence.. with my dilda i can do for sure 0,5 mrad if not better.

yes.. you should do LITTLE movement on the focus ring.. but if you are precise.. you can fnd the right point in wich the divergence is 5.0 or lower.. this point TECHNICALLY EXIST is difficult to fing but when for example you go FROM a focus poiunt ( to burn matches at 15cm)...TO a large beam diameter such as 30cm of diameter at 10 meter.... you're definitely past in that "near 0 mrad" moment

however.. i love that you received a good unit... i only have two about 30mw green laser.. i quld a best powered certified laser.... and i would buy a 150+ optotronics pen or THIS rayfoss laser... the only one that has
1 a good looking... style like RPLs
2 good battery source 186500..with long duration
3 true 160mw green.. but WTF... plus 50mw IR??so much?total 210mw.
3 NON intrusive secure key..(you can leave it in ON position and put out the key) perfect to leave the leaser on a desk.
4 reasonable price 150$.

The fact is that not like the dilda, the focusing ring stops before you can find this point. Also, I think this is done so you have the "focused to the infinity" point at the end of the screw.

I also think that If I could somehow turn it more I would get just a bigger spot. Remember greenies use a more complex system than just focusing the light coming from the diode like the dilda

Also, the 50mW of IR help a lot when burning and trust me that the beam is great like it is alredy

i trust you should be good to have a LPM and see monts my monts IF the power decrease with time.... if it is a durable diode.. it should now less much power within 6 months or 1 year

Its too bad if the focus only goes infinity or wider - having something that would focus a green to a pinprick at 10 cm or so is nice. There is no reason this is technically diffcult, the typical beam-expander setup in a green laser would do just that if the lenses were further apart than configured for inifinity/optimum.

As far as power output goes: its not very likely to decline with using it for several months. The main problem with greens is thermal, but it will be back to normal once things cool back down.

Nice review Albert! Good to know you were wearing laser safety glasses. Yeah, I think your being safe, but never be tempted to get the lasers forward angle closer than 90 degrees from your face. Who knows, batteries/switch could spontaneously power up the diode as a malfunction. I enjoyed the review, thanks again.

Thanks for the detailed review Albert! I might buy one of these for Christmas!

What would happen if you just slashed this laser across your eye really fast from a distance?

lazyazzz12 said:

What would happen if you just slashed this laser across your eye really fast from a distance?

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Video of me doing this with this laser.

Hallucynogenyc said:

Video of me doing this with this laser.

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Lol what about 3 meters? BTW what language is that?

the language is Catalan. 3 meters would immediately blind you forever.

Hallucynogenyc said:

the language is Catalan. 3 meters would immediately blind you forever.

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Well thats a scary thing would it do the same thing with a red one of 200mW? Cause I've done it for like a second and I can still see.

Then you were terribly lucky. Don't tempt the luck again!

Indeed, 200 mW straight into your eye will do damage before you can blink at any remotey visible wavelength!

Hallucynogenyc said:

the language is Catalan. 3 meters would immediately blind you forever.

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Podría ser el adios a las picanas electricas y al gas pimienta, directamente lo dejamos ciego así no vuelve a robar.

I would refrain from aiming any wavelength at any power towards your eyes. Even 5mW of green is not safe for any sustained period of time. Also, Dali spoke Catalan.

Of course Dali spoke catalan. Indeed he was from Catalonia, just as me, it's our native language. Same applies to Antoni Gaudí, Joan Miró, and many other important figures. We are not just a lost part of Spain, in fact over 10 million people use it

@Migha: Y de paso te denuncia y te vas a la cárcel xD De todos modos habla en inglés aquí, si quieres hablar español envía un mensaje privado.

(Told him to keep English here and that he's free to talk me in Spanish over PM)