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12-12-2014, 02:29 AM #17
 Class 2M Laser Join Date: Jul 2012 Location: Philidelphia, Pennsylvania Posts: 598 Rep Power: 55
kilter
Class 2M Laser

Join Date: Jul 2012
Location: Philidelphia, Pennsylvania
Posts: 598
Rep Power: 55
Re: Is this normal?

I agree with the others, get it metered to be certain though.

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300mw pen with 5 heads (around 20mw)
50mw focusable green laser in a cool flashlight host
5mw red pen just for lols
laserglow executive sol for christmas!

12-14-2014, 07:40 AM #18
 Class 3B Laser Join Date: Jan 2014 Location: Near Mosul, Iraq Posts: 4,252 Rep Power: 2090
Class 3B Laser

Join Date: Jan 2014
Location: Near Mosul, Iraq
Posts: 4,252
Rep Power: 2090
Re: Is this normal?

I have a 800+ mw 405 laser and the spot isn't nearly as bright as my green 60mw laser, not even a tenth as bright.
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http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

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12-14-2014, 07:41 PM #19
 Class 3R Laser Join Date: Nov 2014 Location: Portland, Oregon Posts: 1,260 Rep Power: 644
olympus mons
Class 3R Laser

Join Date: Nov 2014
Location: Portland, Oregon
Posts: 1,260
Rep Power: 644
Re: Is this normal?

Hey guys, Just wanted to let you all know I am meeting a LPF member in an hour to meter my lasers. I will let you know what I find. I am charging all the batteries to full now.
Cheers
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12-14-2014, 10:30 PM #20
 Class 3R Laser Join Date: Nov 2014 Location: Portland, Oregon Posts: 1,260 Rep Power: 644
olympus mons
Class 3R Laser

Join Date: Nov 2014
Location: Portland, Oregon
Posts: 1,260
Rep Power: 644
Re: Is this normal?

Here is the results. That's pretty disappointing for a laser advertised as 400mW. For \$90 plus shipping i don't feel this laser is worth the money. Ill be writing Susie for a return and refund. Don't think I will order from o-like again. I'm still waiting on the 250mW 650 that was ordered at the same time as this 405mw.
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12-15-2014, 04:29 AM #21
 Class 2M Laser Join Date: May 2013 Location: New Zealand - Taranaki Posts: 542 Rep Power: 49
RYDorDIE278
Class 2M Laser

Join Date: May 2013
Location: New Zealand - Taranaki
Posts: 542
Rep Power: 49
Re: Is this normal?

that is quite disappointing O-like has been diminishing this year a bit, they are almost just like another usual "lucky dip" laser company, keep up posted with your results from Susie,
How much can that LPM measure? the sensor and Main unit look quite heavy duty!
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LaserZ:
445nm 1.8W C6 Jayrob D.I.Y. Kit
445nm 2.1W+ 501b By TheJoker301
445nm 3.5W Copper DominatoR by Blord
520nm 200mW+ 501b By TheJoker301
650nm 300mW from NO4H99

LPM:
*Laserbee 2.5W USB*

Battery Charger:
*Ultrafire WF-188*
*Nitecore Intellicharger i4*
*OPUS BT-C3100 v2.1*

12-15-2014, 06:06 AM #22
 Class 1M Laser Join Date: Jul 2010 Location: Oregon City Posts: 104 Rep Power: 27
TheGreaterWatt
Class 1M Laser

Join Date: Jul 2010
Location: Oregon City
Posts: 104
Rep Power: 27
Re: Is this normal?

The range goes up to 20 watts, though I am unsure of exactly how much the sensor can handle.

These scientech units are really nice and they do pop up here and on eBay every once and a while.
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Nothing is faster than the speed of light... To prove this to yourself, try opening the refrigerator door before the light comes on.

405nm: Survival host 510mW
445nm: Ghetto Labbie 1232mW
462nm: Survival Host 1668mW
473nm: Jetlasers PL-E 15mW
488nm: Argon SL JDS Uniphase 23mW
520nm: Survival Host 127mW
532nm: SDLaser Portable 61mW
543.5nm: HeNe Melles Griot ~1mW
589nm: Dragon Lasers Spartan 128mW
632.8nm: HeNe JDS Uniphase Head 18mW
635nm: Pen Style ~5mW
660nm: Ehgemus host 275mW
685nm: Lumintop SilverFox Host 35mW
980nm: Pen Style 91mW

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