Old 09-26-2014, 05:37 AM #1
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Default Scifi Lasers SF501B 445nm beam is strange

I don't know what's going on with my laser. I pulled it out the other day and the beam seems to have turned into a block, no matter how I focus it.



Can anyone tell me why this is happening?


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Old 09-26-2014, 06:15 AM #2
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Default Re: Scifi Lasers SF501B 445nm beam is strange

It is a characteristic of all blue diodes----dot is not round---is more rectangular.

The large circle/semi-circle is the diode case window. The rectangular object in the center is the laser diode die. The bright "aura" surrounding the die is the back part of the case directly behind the die being lit up. The dark portion below is the shelf where the diode die is mounted onto.

Last edited by Encap; 09-26-2014 at 10:58 AM.
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Old 09-26-2014, 09:54 PM #3
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Default Re: Scifi Lasers SF501B 445nm beam is strange

What I'm saying is that it didn't do that before. It always focused to a fine point.
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Old 09-26-2014, 10:38 PM #4
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Default Re: Scifi Lasers SF501B 445nm beam is strange

Is best for you to contact SCI-FIi with the question--if anyone is familiar with normal functioning in SCI-FIi lasers, SCI-FI is.

THe image you show is normal for a multi-mode blue diode laser output----it will never have a round center dot just a smaller rectangular dot etc.

Maybe your focus mechanism is missing, not working, perhaps lens lens fell out something like that, lens loose maybe?

Last edited by Encap; 09-27-2014 at 01:43 AM.
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Old 09-29-2014, 05:00 PM #5
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Default Re: Scifi Lasers SF501B 445nm beam is strange

Hi ,

Do not remember if you asked about this.

Anyway , looks like the lens moved or something. I can send you a new lens if needed or just help you fix this one.

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Old 09-29-2014, 10:31 PM #6
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Default Re: Scifi Lasers SF501B 445nm beam is strange

Yeah, I checked, and somehow the lens managed to pop out of the focusing knob.

Any help is appreciated, Joker.
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Old 10-01-2014, 08:09 AM #7
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Default Re: Scifi Lasers SF501B 445nm beam is strange

Quote:
Originally Posted by Maverick View Post
Yeah, I checked, and somehow the lens managed to pop out of the focusing knob.

Any help is appreciated, Joker.
Will contact you asap

It is a 1 minute fix. No worries
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Old 10-08-2014, 06:31 AM #8
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Default Re: Scifi Lasers SF501B 445nm beam is strange

Thanks!
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Old 10-08-2014, 03:10 PM #9
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Default Re: Scifi Lasers SF501B 445nm beam is strange

Joker coming through like always
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