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Old 08-02-2013, 12:48 AM #17
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Default Re: 405nm beam focus to tiny dot?

Hi Sultanen. I have this item
405nm 500mW Industrial Lab Module Voilet Laser TTL Module 12V | eBay

Wavelength(nm) 405
Output Power(mw) 500mw
Input Voltage(v) DC 12V
Operating Mode CW
Cooling Mode FAN
Transverse Mode Near TEM00
Beam Diameter at the Aperture(mm) ~6
Divergence,Full angle(mrad) =5
Power Stability(RMS/4 hrs) <5%
Operating Temperature(?) -10~+35
TTL 0-50KHZ
Laser Head Dimensions(L*W*H) 33mm*33mm*64mm
Power Supply PSU included
Expected Lifetime(hours) >5000
Package Box
Weight 0.2KG


I am also doing a 3D printer. I have the same problem as you, in my case my laser is 500mW, EM00 type and TTL-controllable and adjustable power (50mW-500mW). I need to also do a spot as small as possible, also of 0.1mm, and is adjustable by hand, for a distance of between 100mm and 300mm.

Maybe some more experienced user in lenses can help us both to know what kind of lens we need both and where to buy it.

Thank you all.


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Old 08-02-2013, 12:53 AM #18
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Default Re: 405nm beam focus to tiny dot?

You probably already thought of this, but I bought a $5 magnifying glass off fleabay and can run my 405 through that (aligned right) and get a tiny dot with tons of power density.

-c
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96.85840735 percent clayton... the rest is just pi
405nm >> Skylasers PL405 500mW, overspec generic pen 70mW
445nm >> Blord 3W Dominator
460nm >> laserBtB 50mW pen
473nm >> Jet Lasers PL-E Pro 10-30mW
488nm >> Uniphase 2214-40MLA Cyllindrical Argon Ion
515nm >> Skylasers HL515 30mW
520nm >> Skylasers HL520 50mW
532nm >> Skylasers PL532 700mW, CNI 532nm GLP
543.5nm >> JDS Uniphase HeNe
589nm >> DL Spartan 50mW
632.8nm >> JDS Uniphase HeNe
638nm >> Blord 501B 200mW
650nm >> generic pen 4mW
650nm >> Skylasers HL650 300mW
Lazerbee 5W LPM
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Old 08-02-2013, 01:22 AM #19
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Default Re: 405nm beam focus to tiny dot?

Quote:
for a distance of between 100mm and 300mm.
Why the need for a variable focal distance so wide Glocke? the fusing / curing should be in the same plane each time if you are using a rising product format?

cheers

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Old 08-02-2013, 01:52 AM #20
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Default Re: 405nm beam focus to tiny dot?

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Originally Posted by Spooky View Post
Why the need for a variable focal distance so wide Glocke? the fusing / curing should be in the same plane each time if you are using a rising product format?

cheers

Dave
Because I still do not know the final distance, is approximate and there is a galvo in between, with mirrors, electronic circuits.... Nothing final, all is experimental.

Last edited by Glocke; 08-02-2013 at 01:52 AM.
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Old 08-02-2013, 01:59 AM #21
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Default Re: 405nm beam focus to tiny dot?

Quote:
Originally Posted by KapHn8d View Post
You probably already thought of this, but I bought a $5 magnifying glass off fleabay and can run my 405 through that (aligned right) and get a tiny dot with tons of power density.

-c
I guess I need a lens to focus, but do not know. The seller told me I had internal collimador, and do not know if I can do turning the collimator for adjust to smallest point, I have not received the item. In any case I need something attached externally (lens) adjustable supply me adjust everything work.
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Old 08-02-2013, 02:07 AM #22
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Default Re: 405nm beam focus to tiny dot?

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Because I still do not know the final distance, is approximate and there is a galvo in between, with mirrors, electronic circuits
Ahh I'm with you now

cheers

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