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Old 12-05-2016, 01:56 PM #1
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Default Beam Profile of the PL-E Pro 465nm laser?

What shape is the beam profile of this laser? If you know let me know. I did look via the web before asking.



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Old 12-05-2016, 03:15 PM #2
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Rectangular like every other MM blue diode.
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Old 12-05-2016, 03:26 PM #3
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

As dden said, rectangular. Same as all the MM blue diodes.

I'd imagine the 465nm PL-E (3.5W) is using the NUBM07E or something similar.

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Last edited by diachi; 12-05-2016 at 03:27 PM.
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Old 12-05-2016, 03:40 PM #4
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Is that the profile of a raw diode? Or after it has passed through the collimation lens?
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Old 12-05-2016, 03:46 PM #5
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by steve001 View Post
Is that the profile of a raw diode? Or after it has passed through the collimation lens?

That's 28ft down range, after a collimation lens. Uncollimated diodes don't give you a narrow line like that, you get a large "blob".

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Last edited by diachi; 12-05-2016 at 03:48 PM.
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Old 12-06-2016, 12:48 PM #6
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by diachi View Post
That's 28ft down range, after a collimation lens. Uncollimated diodes don't give you a narrow line like that, you get a large "blob".

A line isn't attractive, folks prefer a dot or semi-dot, well I do at least. I've done a bit more searching and came across this vid showing a homemade laser with an acceptable beam profile. https://www.youtube.com/watch?v=puZFaIDHG2I Now if I can determine if the PL-E Pro has such a profile that would be acceptable. Maybe I'll email JL for an answer.

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Old 12-06-2016, 04:00 PM #7
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by steve001 View Post
A line isn't attractive, folks prefer a dot or semi-dot, well I do at least. I've done a bit more searching and came across this vid showing a homemade laser with an acceptable beam profile. https://www.youtube.com/watch?v=puZFaIDHG2I Now if I can determine if the PL-E Pro has such a profile that would be acceptable. Maybe I'll email JL for an answer.
Maybe using a 3 element in that build, looks like the beam is being clipped at the edges to me. Still a nasty beam by my standards.

Here's another showing what to expect:

https://www.youtube.com/watch?v=kS7XTmdSmNU

Maybe RedCowboy will chime in, he's usually got some good example pictures of beam profiles.
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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

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Old 12-06-2016, 04:19 PM #8
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by diachi View Post
Maybe using a 3 element in that build, looks like the beam is being clipped at the edges to me. Still a nasty beam by my standards.

Here's another showing what to expect:

https://www.youtube.com/watch?v=kS7XTmdSmNU

Maybe RedCowboy will chime in, he's usually got some good example pictures of beam profiles.
At first I didn't notice the beam is being clipped at the long axis. It's such a nice blue, but without beam correcting optics I don't think it's worth buying.
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