Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

o-like 400mW without the lens vs. with lens

Joe Mo

Joe Mo

0
Joined
Jan 4, 2012
Messages
317
Points
0
I would like to find a way to make some sort of insert for a g-1 lens.


With lens on: 453mW (max, usually around 430mW)
With lens off: 543+mW

attachment.php


attachment.php
 

Attachments

  • lpm1.jpg
    lpm1.jpg
    354 KB · Views: 1,702
  • photonocap.jpg
    photonocap.jpg
    334.9 KB · Views: 1,782





well if you get more pics of the inside im sure some one can work it out for you.
Also if you plan on opening it up mind telling me what current that thing is running?
I have one of those as well well just the bare module and they had the thing set at only 1.6A and it only gave out around 300 once i set it to 2a i got 400mw
But seeing your power make me wonder if they are running it higher.
 
kiyoukan said:
well if you get more pics of the inside im sure some one can work it out for you.
Also if you plan on opening it up mind telling me what current that thing is running?
I have one of those as well well just the bare module and they had the thing set at only 1.6A and it only gave out around 300 once i set it to 2a i got 400mw
But seeing your power make me wonder if they are running it higher.
Click to expand...

hmmm, interesting!
I have to find my multimeter, It's at my parents house somewhere. I should go over there today and find it. Along with my old fog machine :)

@Infinitus, I'd like to see the results too.
 
Last edited:
^^^I did 10 tests on the laser so far with various batteries... tonight I'll do a couple more without the lens and post the CSV files for you guys.

I'm very curious about the power loss... I have a spare g1 lens, but I'm not at all sure how to mount it in there. I was also thinking of using a secondary lens to adjust the beam diameter as a trade off on divergence, but that would result in greater power loss.:undecided:
 
InfinitusEquitas said:
^^^I did 10 tests on the laser so far with various batteries... tonight I'll do a couple more without the lens and post the CSV files for you guys.

I'm very curious about the power loss... I have a spare g1 lens, but I'm not at all sure how to mount it in there. I was also thinking of using a secondary lens to adjust the beam diameter as a trade off on divergence, but that would result in greater power loss.:undecided:
Click to expand...

How is your beams divergence? Mine is descent but not the best. I could definitely use an expander or something else to help.
 
I rarely measure divergence, but it's not too bad. Might just do a few tests over the weekend too see.

It's better than my older o-like, however the beam diameter on this new one is also larger, so it's a trade off.
 
I highly doubt it is the lens dropping that much power. Try sending a stable laser through the lens instead. Your results mean nothing if the laser's starting power changes from test to test (and I can assure you it does).
 
That's true, a precise measure of loss with this laser alone would be very hard to establish, but it is possible to spot general trends over several tests, and estimate the loss.

Thanks for the idea to test the lens with a stable laser... can't wait to try that out:D
 
So I tested the o-like without the lens...

400mWO-LikeCrownUpgradeTorchWithoutLensonAWIMR.jpg


This laser has me very very confused. The previous highest peak I've seen was 553mW.

The lens can't account for that much of a change though, so as Cyp suggested I'll test it out separately.
 
I really don't think the bump in power was due to the lens though. I want to test the lens separately...

Like I said, this laser has me really confused. The previous peak was about 2 minutes in... if it wasn't getting to the "too hot" stage I would LOVE to run it for longer:undecided:

Btw, any of you guys with the diffraction tips from lazerer rifles... they also fit on this laser.
 
My findings:

o-like.jpg



With the lens it was hovering around 450mW without the lens it was hovering around 490mW.
 
Last edited:
So the lens has about an 8.16% loss.
Hmm not amazing but not super bad.
Well i got some coated lenses around here i will give it a try and see if we cant find something under 3% loss
 
You must log in or register to reply here.


Back
Top