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02-09-2015, 02:27 AM #17
 Class 3B Laser Join Date: Jan 2014 Location: Baghdad, Iraq Posts: 4,240 Rep Power: 2080
Alaskan
Class 3B Laser

Join Date: Jan 2014
Location: Baghdad, Iraq
Posts: 4,240
Rep Power: 2080
Re: Question about Laser 303??

Crazy can be cranky from time to time about such, but he's not the only one. I guess it just comes down to asking the right questions, I have problems searching that way myself.

__________________

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

_______

02-09-2015, 02:36 AM #18
 Class 4 Laser Join Date: Feb 2013 Location: Masshole Posts: 5,048 Rep Power: 353
Livinloud
Class 4 Laser

Join Date: Feb 2013
Location: Masshole
Posts: 5,048
Rep Power: 353
Re: Question about Laser 303??

if you have problems searching things here then you are using the wrong search function. LPF has TWO of them, one sucks hairy gonads and the other works perfectly every single time. most people use the wrong one and always say i tried searching and got nothing. well you got nothing because you failed to search correctly
__________________
Please Read: Sticky- Complete Guide To Owning Lasers
Sticky- FYI: New Search Function

Laser collection:
Blue & Black Marble Kryton Groove 445nm- 2.65W with 3 element lens, G2 untested
Polished Minisabre V2 462nm - 250mW
Red & Black Marble Kryton Groove 635nm- 500mW
Custom Titanium PL520- stable 80mW

M43vn, Crelant 7G2CS dedomed, Armytek Barracuda, SupBeam K40vn, SupBeam X40, Niwalker Vostro Mvn, Convoy C8 2015 version, Shadow SL3, Crelant 7G5CS, L3 L10, 2x 365nm UV Flashlights, Red P60 Dropin

02-09-2015, 03:13 AM #19
 Class 3B Laser Join Date: Jan 2014 Location: Baghdad, Iraq Posts: 4,240 Rep Power: 2080
Alaskan
Class 3B Laser

Join Date: Jan 2014
Location: Baghdad, Iraq
Posts: 4,240
Rep Power: 2080
Re: Question about Laser 303??

Sometimes it amounts to just being too clueless to even know what words to use, probably my case in the past but recently, I've been doing better. Now if I can just find more info on diffraction gratings for combining R,G and B lasers!
__________________

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

_______

Last edited by Alaskan; 02-09-2015 at 03:14 AM.

02-09-2015, 03:28 AM #20
 Class 3B Laser Join Date: Jul 2012 Location: IN, United States Posts: 2,862 Rep Power: 498
crazyspaz
Class 3B Laser

Join Date: Jul 2012
Location: IN, United States
Posts: 2,862
Rep Power: 498
Re: Question about Laser 303??

You can call me cranky...but if you cant google "303 laser" then you certainly are in no position to be spoon fed.

02-09-2015, 03:42 AM #21
 Class 3B Laser Join Date: Jan 2014 Location: Baghdad, Iraq Posts: 4,240 Rep Power: 2080
Alaskan
Class 3B Laser

Join Date: Jan 2014
Location: Baghdad, Iraq
Posts: 4,240
Rep Power: 2080
Re: Question about Laser 303??

Just an observation over the last year plus, but this kind of question does often evoke senior members to complain quite often. At the same time, not meaning to be a butt, but might I also add that it takes about the same amount of time to answer the question than it does to tell them to go goggle it? Yet, telling them to do so does reduce the amount of posts for such, so I'm split on the issue myself. Sometimes I will go ahead and answer anyway because I'm such a lonely fellow
__________________

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

_______

02-09-2015, 06:53 AM #22
 Junior Member Join Date: Feb 2015 Posts: 8 Rep Power: 0
Lasern00b
Junior Member

Join Date: Feb 2015
Posts: 8
Rep Power: 0
Re: Question about Laser 303??

Quote:
 Originally Posted by crazyspaz Or you could learn how to use google... That rep was meant to be negative. Lucky for you.
Dude first off and take the time to read the thread. .

See where I said I appreciate people including myself should use search function first. Honestly in this case I didn't because I was tired and not thinking when submitting the question.

BUT.. upon searching and Google searching the site and question, I went trough all related threads to the 303 at least on first 2 pages and my questions were not answered..

As for rep dude seriously them users who see that as their police type badge make me laugh reminds of cops the majority who spent their life as bully victims now taking it out on society. Take the rep and stick it up your a** I dot plant to be around these forums long at all..

But to the guys who do like to help like the gentleman above.. I truly am grateful for guys like you who understand the purpose of a forum..

thnx

Last edited by Lasern00b; 02-09-2015 at 06:54 AM.

02-09-2015, 06:58 AM #23
 Junior Member Join Date: Feb 2015 Posts: 8 Rep Power: 0
Lasern00b
Junior Member

Join Date: Feb 2015
Posts: 8
Rep Power: 0
Re: Question about Laser 303??

Quote:
 Originally Posted by crazyspaz You can call me cranky...but if you cant google "303 laser" then you certainly are in no position to be spoon fed.
I googled it first. not forum search but did google it first. point is neither provided the answer i was looking for.

02-09-2015, 10:24 AM #24
 Class 2M Laser Join Date: Mar 2009 Location: Brighton,MI Posts: 928 Rep Power: 111
starlight
Class 2M Laser

Join Date: Mar 2009
Location: Brighton,MI
Posts: 928
Rep Power: 111
Re: Question about Laser 303??

Quote:
 Originally Posted by Lasern00b As for rep dude seriously them users who see that as their police type badge make me laugh reminds of cops the majority who spent their life as bully victims now taking it out on society. thnx
very good observation. Your positive attitude will not get you very far here but you already know that. The cop comment is bulls eye.
__________________
Lasers:
405nm E-bay 303 host (peak 113mW) 13% IR dead
405nm Ehgemus host 900mW (peak 635mW 3E lens) had 2 both died in first minute
450nm home made labby NUBM44 6w (peak 7.2w)
445nm Ehgemus RPL host 3W (peak 3.5W)
445nm home made labby 3W (peak 3.1W)
445nm 501b by Blord 2.5W (peak 2.7W)
447nm Dragon Lasers Spartan 1W (peak 1.3W)
520nm custom Ehgemus host NDG7475 1W (peak 1.5W)
520nm Ehgemus host PL520-B1 120mW (peak 143mW)
532nm labby 500mW (peak 630mW)
532nm Dragon Lasers Viper 75mW (peak 122mW)
532nm C6 host (peak 103mW)
532nm E-Bay 303 host 200mW (peak 95mW) 15% IR
589nm Dragon Lasers Spartan 50mW (peak 115mW)
650nm C6 host (peak 153mW)
650nm E-Bay 303 host 200mW (peak 141mW) 75% IR
650nm DVD diode Mini Mag host 54mW (my first build)
650nm dollar store mini pen 5mW X2

808nm Wicked Lasers E2 400mW (peak 598mW)

Expanders & Googles etc:
Dragon Lasers 10x Beam Expander
Dragon Lasers "new" 2x Beam Expander
Dragon Lasers DGTBF
Dragon Lasers LSG02 goggles 190-548nm
Eagle Pair SL-BLG2 goggles 190-540nm

LPM:
nospin Ophir 20c-A-1-Y MrCrouse full wrap heatsinked

Flashlights:
Fenix tk61vn

02-09-2015, 10:54 AM #25
 Class 1M Laser Join Date: Dec 2014 Location: Hampshire, UK Posts: 117 Rep Power: 49
tttonyyy
Class 1M Laser

Join Date: Dec 2014
Location: Hampshire, UK
Posts: 117
Rep Power: 49
Re: Question about Laser 303??

The trouble with forums is that information gets scattered across threads, and is infrequently consolidated. That makes finding it painful.

What works well is having a wiki associated with the forum (using an auth bridge so that certain groups of forum users can edit pages without a separate login), then when someone asks that question that's been asked 1000 times before, you can just link the wiki page.

We did this for a forum on homebrew biodiesel production and it worked a treat, very rarely get the same old questions asked again.
__________________

Playing with lasers since 1997.
405nm 100mW x 2 + dead 301
445nm 1W pointer and 3W+ Nichia NDB7875 with G9 Lens
532nm 5mW, 100mW x2, "True 300mw Output" (from China, actually about 80mW)
630nm 0.5mW, 100mW + dead 301
Nitecore D4 charger and iMax B6 for tending the Lithium Ions

02-09-2015, 01:56 PM #26
 Class 4 Laser Join Date: Feb 2013 Location: Masshole Posts: 5,048 Rep Power: 353
Livinloud
Class 4 Laser

Join Date: Feb 2013
Location: Masshole
Posts: 5,048
Rep Power: 353
Re: Question about Laser 303??

Your question was why do people advertise lasers as 5mW when they really arent

Is there a difference between a 303 & sd303

First question has nothing to do with 303s and is answered in many threads but most importantly in a stick thay has been posted in your thread multiple times. Plus its a sticky so you should have read it to begin with.

Second question isnt really a question at all and can be figured out by yourself just by reading the descriptions of the lasers. Is anything different? Check with multiple sources to see if they are all listed the same way

Your problems have been solved so youre welcome

BTW your retaliation neg rep is really cute. See you dont have any idea how rep works either.....you are too new and dont have enough posts or rep here to actually make your rep count (positive or negative). Its a safe guard so ppl cant just make 20 accounts and +/- rep the crap out of themselves or someone else. Even if your rep did count it would only count for like 1 point at first and wow -1 to my 31,000 is a real big hit. You really hurt my feelings with that one buddy
__________________
Please Read: Sticky- Complete Guide To Owning Lasers
Sticky- FYI: New Search Function

Laser collection:
Blue & Black Marble Kryton Groove 445nm- 2.65W with 3 element lens, G2 untested
Polished Minisabre V2 462nm - 250mW
Red & Black Marble Kryton Groove 635nm- 500mW
Custom Titanium PL520- stable 80mW

M43vn, Crelant 7G2CS dedomed, Armytek Barracuda, SupBeam K40vn, SupBeam X40, Niwalker Vostro Mvn, Convoy C8 2015 version, Shadow SL3, Crelant 7G5CS, L3 L10, 2x 365nm UV Flashlights, Red P60 Dropin

Last edited by Livinloud; 02-09-2015 at 02:05 PM.

02-09-2015, 02:48 PM #27
 Super Moderator Join Date: Sep 2013 Location: Central California Coast Posts: 6,160 Rep Power: 1748
Hap
Super Moderator

Join Date: Sep 2013
Location: Central California Coast
Posts: 6,160
Rep Power: 1748
Re: Question about Laser 303??

^He gave me negative reputation aswell & called me "laserdouche" saying I should read people's threads haha.

-Alex
__________________
My Lasers:
650nm: laserbtb LP650-5 (peak 15mW)
635nm: Laserglow Libra (peak 4mW)
593.5nm: Laserglow Rigel-2 (peak 1mW)
532nm: Laserglow Anser (waiting for arrival)

"Open your eyes, look within. Are you satisfied with the life you're living?" -Bob Marley
“The universe is a pretty big place. If it's just us, seems like an awful waste of space.” -Carl Sagan
You are important: Pale Blue Dot

02-09-2015, 05:46 PM #28
 Class 2M Laser Join Date: Mar 2009 Location: Brighton,MI Posts: 928 Rep Power: 111
starlight
Class 2M Laser

Join Date: Mar 2009
Location: Brighton,MI
Posts: 928
Rep Power: 111
Re: Question about Laser 303??

Quote:
 Originally Posted by Livinloud Your question was why do people advertise lasers as 5mW when they really arent Is there a difference between a 303 & sd303 First question has nothing to do with 303s and is answered in many threads but most importantly in a stick thay has been posted in your thread multiple times. Plus its a sticky so you should have read it to begin with. Second question isnt really a question at all and can be figured out by yourself just by reading the descriptions of the lasers. Is anything different? Check with multiple sources to see if they are all listed the same way Your problems have been solved so youre welcome BTW your retaliation neg rep is really cute. See you dont have any idea how rep works either.....you are too new and dont have enough posts or rep here to actually make your rep count (positive or negative). Its a safe guard so ppl cant just make 20 accounts and +/- rep the crap out of themselves or someone else. Even if your rep did count it would only count for like 1 point at first and wow -1 to my 31,000 is a real big hit. You really hurt my feelings with that one buddy
Quote:
 Originally Posted by Tha Greenlander ^He gave me negative reputation aswell & called me "laserdouche" saying I should read people's threads haha. -Alex
well at least neither of you will feel the neg. the name calling was uncalled for and livinloud answered all his questions, OP should being giving +rep to you
__________________
Lasers:
405nm E-bay 303 host (peak 113mW) 13% IR dead
405nm Ehgemus host 900mW (peak 635mW 3E lens) had 2 both died in first minute
450nm home made labby NUBM44 6w (peak 7.2w)
445nm Ehgemus RPL host 3W (peak 3.5W)
445nm home made labby 3W (peak 3.1W)
445nm 501b by Blord 2.5W (peak 2.7W)
447nm Dragon Lasers Spartan 1W (peak 1.3W)
520nm custom Ehgemus host NDG7475 1W (peak 1.5W)
520nm Ehgemus host PL520-B1 120mW (peak 143mW)
532nm labby 500mW (peak 630mW)
532nm Dragon Lasers Viper 75mW (peak 122mW)
532nm C6 host (peak 103mW)
532nm E-Bay 303 host 200mW (peak 95mW) 15% IR
589nm Dragon Lasers Spartan 50mW (peak 115mW)
650nm C6 host (peak 153mW)
650nm E-Bay 303 host 200mW (peak 141mW) 75% IR
650nm DVD diode Mini Mag host 54mW (my first build)
650nm dollar store mini pen 5mW X2

808nm Wicked Lasers E2 400mW (peak 598mW)

Expanders & Googles etc:
Dragon Lasers 10x Beam Expander
Dragon Lasers "new" 2x Beam Expander
Dragon Lasers DGTBF
Dragon Lasers LSG02 goggles 190-548nm
Eagle Pair SL-BLG2 goggles 190-540nm

LPM:
nospin Ophir 20c-A-1-Y MrCrouse full wrap heatsinked

Flashlights:
Fenix tk61vn

02-09-2015, 07:02 PM #29
 Class 2 Laser Join Date: Sep 2014 Location: Berkshire, UK Posts: 295 Rep Power: 66
clansley
Class 2 Laser

Join Date: Sep 2014
Location: Berkshire, UK
Posts: 295
Rep Power: 66
Re: Question about Laser 303??

Quote:
 Originally Posted by Tha Greenlander "laserdouche"
Sounds painful, or exciting, depending on your lifestyle and/or laser power!
__________________
405nm ~25mW ("1mW" ebay) + 1 cap, ~1mW ("5mW" aliexpress)
445nm ~950mW ("1W" SF502B/SciFi Lasers), 10mW (aliexpress)
520nm 52mW (HL520-50B/laserbtb)[REVIEW]
532nm 1mW (maplin), 5mW (odicforce), ~6mW + 808nm ~10mW ("1mW" ebay), ~13mW + 808nm ~34mW ("1mW" odicforce)
635nm 1mW laser distance meter
650nm ~50mW ("1mW" ebay:actwave), ~3mW ("5mW" aliexpress)
Eagle Pair Glasses 190-540, 800-2000nm OD4 (odicforce), Cheap 650nm glasses OD1 (aliexpress),
cheap 405nm/445nm/532nm@OD2+ (aliexpress), IR Pass Filter 700nm-1700nm,
(~) DIY IR Thermometer based approx "LPM", Nitecore i2 intellicharger, MH-C9000 charger

Wish list: 50mW 589nm, Variable power: 1W 405nm, 1W 445nm, 200mW 520nm, 1W 650nm

The Ultimate laser feature: Variable Power

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