multi points laser

[giorgiofolle]

Hi guys, today I got my first green laser, but just turned on I noticed a couple of things
first of all when I turn it off is not a single point, but they come out so many little ones (such as disco for instance)

if I remove by removing a piece of cylindrical shape, the laser becomes a normal laser to a point, but I do not cha 'leave the trail'

rotating the cylinder you can have different configurations of points (apart from that single point)
now here it is day, tonight I feel better over long distances

 

[mdubbicus]

The multi point as you call it is due to it being a diffracting lens/cap. What is the laser rated at in mW? It might just not be strong enough to see the beam without some fog or something, but beyond that it's kinda hard to say/tell from the pictures and with so little info..

 

[giorgiofolle]

the laser is powered by two AA
it says on the label:
Max output <100 mW
class 3A
wavelength 532 nm

 

[mdubbicus]

___________________________________________________________________
This chart is for you begginers who don't know what every laser is capable of by mW.
-----------------------------------------------------------------------------------------------
300mW - 200mW - 100mW - 50mW - Green Lasers Only
-----------------------------------------------------------------------------------------------
----X--------X----------X---------X----- Laser Beam visible at night
----X--------X----------X---------X----- Cut Black Tape
----X--------X----------X---------X----- Pop a Balloon
----X--------X----------X---------O----- Light a Match
----X--------X----------O---------O----- Visible Beam at daylight (indoor)
-----------------------------------------------------------------------------------------------
(chart pulled from SFCG-100 532nm Green)

 

[giorgiofolle]

ok now I have turned off all the lights in the house and I lowered the blinds, and I tried, the light beam can be seen, although not very well, but that's something ..

as regards the diopter, the I perforza remove, to have the single point, it is a normal thing?
in practice remains as in the 3 photos


ps I did the test of the match, but did not access :tired:
thank you very much

 

[mdubbicus]

It could just be that without the lens/cap it isn't able to focus, without having it LPM'ed though it's hard to tell what the actual power rating of it is, but I doubt it's near 100mW. Most lasers (depending on where you bought it from) are either under or overspec. Sounds like this one is most likely the leader of that group. Where did you buy it from?

 

[giorgiofolle]

for now I have limited myself to remove the two small square diopters that were inside of the cylinder (quadratina were two soft plastic)

the laser me took my father in Afghanistan, l paid $ 4, so I'm not to worry too much about its actual power

 

[giorgiofolle]

I disassembled the diopter of the laser, now the cylinder where they were staying the diopter is empty, what can I mettergli as a lens to improve the beam?
Without increase the power and finish in the illegal

 

[DanGeRoUs98]

What do you mean by diopter ? It's nearly impossible to focus pen lasers like this to be able to burn.

 

[midnighttattoo]

Think he means lens.

 

[giorgiofolle]

yes , i'm sorry , I expressed myself badly

I just wanted to find something to put in place of that particular lens, maybe something that is able to concentrate more lasers.
for example I have in a box of small lenses that were in a dvd player

I was thinking maybe even an infrared filter ...
there is a way to tell if it is present or not? I would avoid me to hurt me, to me and to others