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Old 02-07-2014, 02:52 AM #1
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Exclamation Help? Dirty lens?

Hello, tonight I got home and fired up my laser, I noticed that the dot appeared to have a "galaxy effect" and took off the focusing lens. With the lens it has a larger dot than normal but is not too bad, without it you get thisHelp? Dirty lens?-win_20140205_204002-2-.jpg Has anyone else have this problem? How can I fix it?

Thank you for your time.


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Last edited by ggdoubleu; 02-07-2014 at 02:53 AM. Reason: typo
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Old 02-07-2014, 04:27 AM #2
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Default Re: Help? Dirty lens?

Indeed. it does look like it's just dirty. What kind of laser do you have? First thing to try is some compressed air. If that doesn't work, general safe way to clean them is with 91% or better Isopropyl alcohol with no additives and a very gentle q-tip or microfiber cloth that is lint-free/non abrasive, or if it is glass and want to be hardcore, you can use lab-grade acetone and lens tissue. just two words...VERY GENTLY.
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325nm: Omni 2056-M-A01 HeCd
375nm: Melles Griot RCS-007

405nm: Melles Griot RCS
430nm: Coherent D3 430-10
441.6nm: Omnichrome 2056-M-A01/4074-P-A03 HeCd laser
457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: CNI MGL-F-3W, Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-20
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line?
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
1523.5nm: Melles Griot LIR-151 HeNe
3391nm: SP-124 alt. mirrors

Last edited by ultimatekaiser; 02-07-2014 at 04:29 AM.
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Old 02-07-2014, 02:49 PM #3
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Default Re: Help? Dirty lens?

Quote:
Originally Posted by ultimatekaiser View Post
Indeed. it does look like it's just dirty. What kind of laser do you have? First thing to try is some compressed air. If that doesn't work, general safe way to clean them is with 91% or better Isopropyl alcohol with no additives and a very gentle q-tip or microfiber cloth that is lint-free/non abrasive, or if it is glass and want to be hardcore, you can use lab-grade acetone and lens tissue. just two words...VERY GENTLY.
It's a 100mw greenie from thejoker301, I was very worrisome about using cotton as I did not want to scratch the lens. Today I'll go out and buy a can of air. Thanks for your reply, I was a little worried about it
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Old 02-07-2014, 03:36 PM #4
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Default Re: Help? Dirty lens?

No worries. If it's just dust, the air should make it improve. So it's a good first step
__________________
325nm: Omni 2056-M-A01 HeCd
375nm: Melles Griot RCS-007

405nm: Melles Griot RCS
430nm: Coherent D3 430-10
441.6nm: Omnichrome 2056-M-A01/4074-P-A03 HeCd laser
457.9nm: Argon Ion Line

472nm Omni-643RYB Whitelight Line
473nm: CNI MGL-473-100, CNI GLP-473
476.5nm: Argon Ion Line

483nm Omni-643RYB Whitelight Line
488nm: Argon Ion Line, Spectra Physics >20mW Cyan DECSL Laser, Coherent Sapphire 488-20 OPSL

496.5nm: Argon Ion Line
501.7: Argon Ion Line
514.5nm: Argon Ion Line
520nm: Trustfire A8 Custom

532nm: CNI MGL-F-3W, Coherent Genesis MX Taipan OPSL, LG Hercules-325
543.5nm: 05-LGR-193 Melles Griot HeNe 3.8mW
Melles Griot LGB-563 HeNe

561nm: Melles Griot 85-YCA-015, Coherent Sapphire 561-20
568nm: Omni-643RYB Whitelight Line

577nm: Coherent Genesis MX Taipan OPSL
583.8nm: DPSS line
586.2nm: DPSS line
588.6nm: CNI PGL-M-80

591nm: DPSS line
593.5nm CNI MGL-H-50 Lab Laser
594.1nm: Coherent 31-2230-000 (4.5mW)

604.6nm: LOR-150 HeNe line
609nm: Raman HeNe line?
611.8nm: Melles Griot LOR-150 HeNe (5mW), LOR-006 HeNe (0.5mW)

632.8nm: Spectra Physics Model-127 (>35mW), Model-124B, Model-120, Model-117, others
Melles Griot LHB-580, LHB-190, WHR-570

641nm: Melles Griot RCS
647nm: Omni-643RYB Whitelight Line
659.6nm: Laser Quantum IGNIS DPSS laser 0.5W

671nm: CNI PGL-III-C-100
676nm: Omni-643RYB Whitelight Line
690nm: custom diode laser
694nm: Portable Q-switched Ruby Laser

1152.6nm: SP-120 HeNe alt. mirrors
1523.5nm: Melles Griot LIR-151 HeNe
3391nm: SP-124 alt. mirrors
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Old 02-07-2014, 04:15 PM #5
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Smile Re: Help? Dirty lens?

Quote:
Originally Posted by ultimatekaiser View Post
No worries. If it's just dust, the air should make it improve. So it's a good first step
I think I might have been burning too close and the smoke collected on the lens, air will hopefully fix that however
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