LPF Laser Pointer Company Database








Welcome to Laser Pointer Forums! If you are looking for a laser you may want to check out the database of laser pointer companies. The link will open in a new window for your convenience.

Green Laser Pointers Blue Laser Pointers Red Laser Pointers
Yellow Laser Pointers Violet Laser Pointers Orange Laser Pointers
Laser Pointers by Power - 1 Watt+ Laser Pointers by Power - 500mW+ Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes


























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Laser Measurements

LPF Database of Laser Pointer Companies






Reply
 
LinkBack Thread Tools Display Modes
Old 05-09-2013, 02:48 AM #33
Belch85's Avatar
Class 1 Laser
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Belch85 Belch85 is offline
Class 1 Laser
Belch85's Avatar
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Default Re: What if I Don't Have an LPM?

If all lasers (of different power outputs) produced the same affect on substances around us; then there would be no measurable difference of effect. There would also be no need to purchase any laser of a different strength (as one 5mW laser would suite all applications).

Since there is a measurable difference of affect by different powered lasers - there is a subsequent need to purchase different strength lasers for different applications. Since these different lasers produce a different affect on the substances around us; the difference of effect is measurable. Since it is measurable; statistical estimations can be made. These estimations may be of very low accuracy; or of very high accuracy - but the fact stands - that they can be made.

Quote:
Originally Posted by daguin View Post
I'm done

See if any of you can make him understand

He doesn't want to believe me

Peace,
dave
Dave - I am not attacking you. It is not you that I am choosing to believe or not believe. I have a brain; with a logical ability - and I'm applying it to the laser knowledge I have. When I do this; I come up with a only slightly different message than the one you are conveying. If you have the time, I would really appreciate your input through a constructive response - that can help me (not make me) understand further.

Kind Regards,
Belch85


Belch85 is offline   Reply With Quote








Old 05-09-2013, 02:54 AM #34
daguin's Avatar
Super Moderator
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 842
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
daguin daguin is offline
Super Moderator
daguin's Avatar
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 842
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

Quote:
Originally Posted by Belch85 View Post
If all lasers (of different power outputs) produced the same affect on substances around us; then there would be no measurable difference of effect. There would also be no need to purchase any laser of a different strength (as one 5mW laser would suite all applications).

Since there is a measurable difference of affect by different powered lasers - there is a subsequent need to purchase different strength lasers for different applications. Since these different lasers produce a different affect on the substances around us; the difference of effect is measurable. Since it is measurable; statistical estimations can be made. These estimations may be of very low accuracy; or of very high accuracy - but the fact stands - that they can be made.



Dave - I am not attacking you. It is not you that I am choosing to believe or not believe. I have a brain; with a logical ability - and I'm applying it to the laser knowledge I have. When I do this; I come up with a only slightly different message than the one you are conveying. If you have the time, I would really appreciate your input through a constructive response - that can help me (not make me) understand further.

Kind Regards,
Belch85
You *want* to believe something that you *feel* is right
I cannot argue against wants and/or feelings

Have a nice day

Peace,
dave
__________________
How To Get Along In and Be Accepted in the Forum

If you got some value out of reading this forum, how about donating $2 to keep it going?
Click Here to donate

Love all, trust a few, do wrong to none.
-William Shakespeare
daguin is offline   Reply With Quote
Old 05-09-2013, 03:03 AM #35
ZRaffleticket's Avatar
Class 3R Laser
 
Join Date: Feb 2010
Location: The Skook, Pennsylvania
Posts: 2,242
Rep Power: 483
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
ZRaffleticket ZRaffleticket is offline
Class 3R Laser
ZRaffleticket's Avatar
 
Join Date: Feb 2010
Location: The Skook, Pennsylvania
Posts: 2,242
Rep Power: 483
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
Default Re: What if I Don't Have an LPM?

Thing is, there's not really any accurate way to measure a laser's power without an LPM.

Things like wavelength, room temperature, and beam size all have to play into it. If you're trying to estimate a 1.2W to 2.2W 445nm laser (as Dave said), there's not much room to estimate because that kind of power already annihilates everything. A 200mW deviation isn't enough to make any significant advances in annihilation.

If you want to go by brightness, it's all subjective. Yes the beam is visible, but there's no accurate way to measure how visible a beam is. It's as bright as a dim flashlight. Well how bright is that? That said, how bright is 10 lumens?

There's no guide for the 445's because most people get them LPMed, If you want to create a guide, go ahead. Just don't try measuring it with your lips.
__________________
465nm 2W
472nm 2W
488nm 20mW Uniphase Argon -- FOR SALE
650nm 300mW leadlight


DPSS Theoretical Wavelength Chart
ZRaffleticket is offline   Reply With Quote
Old 05-09-2013, 04:10 AM #36
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 8,952
Rep Power: 1947
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 8,952
Rep Power: 1947
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

I think Mr. Belch is saying we can estimate laser power, but with rather poor accuracy. I agree in a sense. However, I'll assert the accuracy is so poor that it is virtually useless. Brightness will only get you so far, because there are many, MANY factors that will skew that.

Your stock trichromatic ocular devices will only give you comparative measurements (this dot is brighter than that dot), and only if the difference is more than 10% or so. This totally useless across colors, because as you know, some colors are brighter than others.

Maybe a seasoned professional that has dealt with lasers for a few decades might have a chance at guessing +/- 20%, but he will have had lots of access to power meters to begin with.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 05-09-2013, 06:31 AM #37
Belch85's Avatar
Class 1 Laser
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Belch85 Belch85 is offline
Class 1 Laser
Belch85's Avatar
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Default Re: What if I Don't Have an LPM?

Thanks for your valuable input ZRaffleticket & Cyparagon. Both posts have helped me to think about this further (and gain a better understanding). Admittedly I often don't deal well in the face of absolute rulings; and probably have spoken well outside my scope of understanding. I hope we can all get along in our love for lasers.

I guess my main point is/was:
"If you don't have an LPM, here are some friendly suggestions that may help you guess - but by no means are these methods definitive and accurate, and if you plan to X, Y, Z with your output power figures then you really do need to get it LPM'd. The reason it is so hard to guess a lasers power is: X, Y, Z. While you can estimate that a laser is above X power by testing it with Z, you cannot differentiate between A, B or C power outputs easily using any of these methods. While you can test using X method for Y, you will find it only accurate up to point Z."

Perhaps I should have asked nicely for a bit more information, and done some research, and tried to come up with some of this information myself. This is all fun and I enjoy learning.

Last edited by Belch85; 05-09-2013 at 06:33 AM.
Belch85 is offline   Reply With Quote
Old 05-09-2013, 06:37 AM #38
norbyx's Avatar
Class 3R Laser
 
Join Date: Apr 2013
Location: Costa Rica
Posts: 1,200
Rep Power: 58
norbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond repute
Send a message via Skype™ to norbyx
norbyx norbyx is offline
Class 3R Laser
norbyx's Avatar
 
Join Date: Apr 2013
Location: Costa Rica
Posts: 1,200
Rep Power: 58
norbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond reputenorbyx has a reputation beyond repute
Send a message via Skype™ to norbyx
Default Re: What if I Don't Have an LPM?

Well one thing is for sure, a LPM is the best thing you can buy if you plan in sticking with this hobby. For many reasons.
Anyhow just FYI, the WL kripton in low power mode gives about 100mw tops and a Skylaser that peaks 200mw, and by just seeing the beams you can't tell the difference.
__________________
405nm 500mw--
Danefex minisabre 455nm 1.5W--

NLC Argon 458nm 30mW
Laser physics Argón 488nm 90mw

Ebay Pen Style 532nm 40-80mW
Rick Trent 638nm 1.2w--Blord 1 Watt 638nm EDC laser Shadow GF1 (review)--05-LHR-991 MELLES GRIOT HeNe 16mW--AEROTECH ELECTRO OPTICAL OEM5R 7mW

Laserbee II 3.2 LPM.
norbyx is offline   Reply With Quote
Old 05-09-2013, 01:13 PM #39
TheDukeAnumber1's Avatar
Class 3R Laser
 
Join Date: Jun 2012
Location: Illinois
Posts: 2,036
Rep Power: 516
TheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond repute
TheDukeAnumber1 TheDukeAnumber1 is offline
Class 3R Laser
TheDukeAnumber1's Avatar
 
Join Date: Jun 2012
Location: Illinois
Posts: 2,036
Rep Power: 516
TheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

I agree, there is some merit to ballparking a lasers power, especially if you have plenty of comparison I.E. lot of lasers or metered lasers, and studying known outputs compared to current draw. When you look at the potential % off though it can be quite high.

Kinda how Cyparagon pointed out, the people who would have a good guess at it will usually have an LPM anyways.
__________________
“Absence of evidence isn't evidence of absence."
http://laserpointerforums.com/donations.htm
“It is impossible that any ill should happen to the man who is beloved of the Lord; the most crushing calamities can only shorten his journey and hasten him to his reward. Ill to him is no ill, but only good in a mysterious form. Losses enrich him, sickness is his medicine, reproach is his honour, death is his gain. No evil in the strict sense of the word can happen to him, for everything is overruled for good. Happy is he who is in such a case. He is secure where others are in peril, he lives where others die.”—Spurgeon
Avatar by Yohsi Yaki

Last edited by TheDukeAnumber1; 05-09-2013 at 02:28 PM. Reason: grammar
TheDukeAnumber1 is offline   Reply With Quote
Old 05-09-2013, 02:03 PM #40
scumbagatheist's Avatar
Renaissance Man
 
Join Date: Feb 2013
Location: Fort Worth, Texas
Posts: 2,124
Rep Power: 146
scumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond repute
scumbagatheist scumbagatheist is offline
Renaissance Man
scumbagatheist's Avatar
 
Join Date: Feb 2013
Location: Fort Worth, Texas
Posts: 2,124
Rep Power: 146
scumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond reputescumbagatheist has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

I must be really pretty or something...To see such a wonderful, informative, and well thought out thread by Daguin be dismissed by folks who want to make arguments based on flawed an subjective data.

Perhaps, it would have gotten through better to the noobs, if Dave had focused the topic towards folks who want to sell lasers and want true accuracy.

Clearly, noobs are going to think they know better...apply "logic" they think we haven't considered yet, etc...With some folks, there's just no convincing, and is more effective. It reminds me of freshmen university students who are sure they have an insight over their teachers because they took a summer workshop.
__________________
¤ Sticky: List of LPF Members With LPMs and Locations ¤
¤ Made In LPF - All Your Lasers Needs Right Here ¤
¤ SBA's Before You Touch That Diode Thread ¤
¤ My Multimedia Thread ¤
¤ LivinLoud's Sicky: Guide to Owning Lasers ¤

405nm S06J, 675mW Krtyton Groove-Polished
The Bastard:445nm, 2W M-140 UF KF-T60
445nm, 9mm, 3.2W Kryton Groove-Polished
450nm Osram PL450B, 130mW, Kryton Groove-Polished
La Spada Verdi: 1st Ever PL520 MS-SSW 115mW
532nm, 100mW, Taped to Sanyo 18650/3100mAh
638nm Opnext, 160mW, Kryton Groove-Polished
650nm LPC-826, 360mW, MXDL Host Kit by Mrcrouse
650nm <5mW Laser Pointer/UV LED/LED flashlight NEBO 5063


5W Ophir 20C-A-1Y LPM

Last edited by scumbagatheist; 05-09-2013 at 04:44 PM.
scumbagatheist is offline   Reply With Quote
Old 05-09-2013, 03:47 PM #41
Belch85's Avatar
Class 1 Laser
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Belch85 Belch85 is offline
Class 1 Laser
Belch85's Avatar
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Default Re: What if I Don't Have an LPM?

My point exactly scumbagathiest, perhaps the original post was not written for the benefit of all audiences.

I see I have come about this the wrong way . I thank you for your patience with my incessant pestering; I hope to grow in this hobby and one day add to this thread. I'd like to add some useful information (in addition to what Dave has already posted) that will clearly explain some basic principals that can give clues to the power output, and some basic principles that insist/require an accurate measure.

In other words - useful information for those without an LPM (which is what the title of this thread implies). If I don't have an LPM - I'd like to know a little more than "You need an LPM".

Thanks for your original post Daguin - I'm doing my research and learning every chance I get. I know I should read my text books more - but sometimes I really enjoy a good conversation; especially when I can learn from a willing expert. Thanks to all the guys on here who posted constructive comments regarding my questions.

Why can't we all just be friends?
Belch85 is offline   Reply With Quote
Old 05-10-2013, 12:17 PM #42
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 14,923
Rep Power: 1235
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 14,923
Rep Power: 1235
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

Quote:
Originally Posted by Belch85 View Post
My point exactly scumbagathiest, perhaps the original post was not written for the benefit of all audiences.

I see I have come about this the wrong way . I thank you for your patience with my incessant pestering; I hope to grow in this hobby and one day add to this thread. I'd like to add some useful information (in addition to what Dave has already posted) that will clearly explain some basic principals that can give clues to the power output, and some basic principles that insist/require an accurate measure.

In other words - useful information for those without an LPM (which is what the title of this thread implies). If I don't have an LPM - I'd like to know a little more than "You need an LPM".

Thanks for your original post Daguin - I'm doing my research and learning every chance I get. I know I should read my text books more - but sometimes I really enjoy a good conversation; especially when I can learn from a willing expert. Thanks to all the guys on here who posted constructive comments regarding my questions.

Why can't we all just be friends?
Perhaps YOU could accumulate the data required to make
a chart of how to test Lasers without an LPM to fill your
Grey Area...

I could see that you would no doubt need (to keep data as
accurate as possible) to purchase at least 10 of each type
of Laser powers on your chart in each of the Laser Wavelengths
on your chart.

Then find a common non LPM testing method that anyone
can do and has materials with identical properties around
the house (to keep costs low).
Then you could post that compiled chart on the Forum for
members to duplicate your results at their homes.

Or for less $$$ and time you can buy a Laser Power Meter
and get much more accurate results... Or even have a
member with an LPM measure your Laser for you.

The choice is ultimately yours...


Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Search


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 05-10-2013, 12:31 PM #43
Gun's Avatar
Gun Gun is offline
Class 2M Laser
 
Join Date: Apr 2013
Location: Australia
Posts: 894
Rep Power: 53
Gun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond repute
Gun Gun is offline
Class 2M Laser
Gun's Avatar
 
Join Date: Apr 2013
Location: Australia
Posts: 894
Rep Power: 53
Gun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond reputeGun has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

Quote:
Originally Posted by lasersbee View Post
Perhaps YOU could accumulate the data required to make
a chart of how to test Lasers without an LPM to fill your
Grey Area...

I could see that you would no doubt need (to keep data as
accurate as possible) to purchase at least 10 of each type
of Laser powers on your chart in each of the Laser Wavelengths
on your chart.

Then find a common non LPM testing method that anyone
can do and has materials with identical properties around
the house (to keep costs low).
Then you could post that compiled chart on the Forum for
members to duplicate your results at their homes.

Or for less $$$ and time you can buy a Laser Power Meter
and get much more accurate results... Or even have a
member with an LPM measure your Laser for you.

The choice is ultimately yours...


Jerry
*cough* Buy a Laserbee LPM *cough*
__________________
405nm 150mW (Estimated) Focusable Ebay Laser
532nm 1mW Pen Host Laser Pointer
638nm 120mW Opnext C6 By Blord

Last edited by Gun; 05-10-2013 at 12:31 PM.
Gun is offline   Reply With Quote
Old 05-10-2013, 10:30 PM #44
hakzaw1's Avatar
Class 4 Laser
 
Join Date: Apr 2009
Location: 'Deep in the Heart Of Texas..."
Posts: 8,140
Rep Power: 1271
hakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond repute
hakzaw1 hakzaw1 is online now
Class 4 Laser
hakzaw1's Avatar
 
Join Date: Apr 2009
Location: 'Deep in the Heart Of Texas..."
Posts: 8,140
Rep Power: 1271
hakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

IMHO buying a good LPM is never wasted $$.
most can be later sold with small depreciation.
New LPMs are coming with better prices.

But as many have said- there are no truly good substitutions for a good meter.

You do have some options however- connect with a member locally who owns a meter- it has been a tradition at laser forums to meter lasers for others at no charge.
I have been shipped lasers to meter by those with no meter. They cover the return postage and then know what their lasers are outputting.

If you take a look at my avatar you will see two 635 red lasers-- one is 200mW the other is 400mW- can you tell which is whicH?
is the 400 twice as 'bright'?-- the green is a 500mw ( OSpec to 700mW) and the blue is a 445nm 1W--

FYI if using your eyes to judge brightness you would need an 800mW 635 to look twice as 'bright' as my 200mW- the factor is not 2 its 4.
so get a LPM- easy to sell later- and a good item to own.
__________________
IF YOU ARE NEW HERE- READ ALL THIS http://laserpointerforums.com/f37/an...ml#post1353314
& Spend some hours reading at LASERPOINTERSAFETY.COM

powered by PANGOLIN-ILDA Member since 2014.

QS/FB3 +Beyond-APC40-Mamba Black(clone) 5paghettix2 and I-show x2-Kasio synth-midi
KGB- 532 1.1W 445 2.2W 655 1.3W DT Pro 40 still needs more red.
KGB1W+ 532 DT Pro 40 soon to be GB.
Laserking 1300RGB FULL COLOR 30K(may be FS)
Laserking RGB LK PD2 500 and LK SD 850
REKE RGB 500- G 300
HeNes-(12)R(3)G-COH-594/5 mW-thnx DrSam
MULTILINE-147mW[
445nm 180mW-Mini spiro-Yob.
LPMs-RadiantAlpha& Pro5W-AixiZ SPER/KenmeterLite/LB1
Spacelas 1178mW 655nm/AixiZ 300mW532&
2 B&W 473nm 5/6mW lab
JETLRS1.3W&1.2W-MGL-H
638 180mW ttl mimi lab (av. 230mW)
405 100mW ttl mini lab
445 300 mW ttl mni lab ^AixiZ^ all for a lumia PJ
*MightyMite 2000* RGB all diode 2.2W 30K- 637/520./450...NEW!!
Guide DIY Pjs by Dan-
http://nqlasers.com/scannerreference/index.php?title=Main_Page

Last edited by hakzaw1; 05-10-2013 at 10:32 PM.
hakzaw1 is online now   Reply With Quote
Old 05-11-2013, 01:47 AM #45
Belch85's Avatar
Class 1 Laser
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Belch85 Belch85 is offline
Class 1 Laser
Belch85's Avatar
 
Join Date: Apr 2013
Location: Melbourne, Australia
Posts: 71
Rep Power: 11
Belch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to beholdBelch85 is a splendid one to behold
Default Re: What if I Don't Have an LPM?

Thanks,

Great input and ideas.
Belch85 is offline   Reply With Quote
Old 05-14-2013, 06:57 AM #46
LaserCo's Avatar
Class 2 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 434
Rep Power: 32
LaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond repute
LaserCo LaserCo is online now
Class 2 Laser
LaserCo's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 434
Rep Power: 32
LaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond reputeLaserCo has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

Hey !
you are great! how do you find time for all of this???

+ Rep to U too

Quote:
Originally Posted by daguin View Post
Why MUST there be grey area?
Why, in the world, would you believe that your "intuition" is more capable of discerning truth than our empirical testing and academic history?

You have not "brained your damage."
You are simply a human who's mommy and grammy lied to you
You are NOT the smartest child in the world
You aren't the prettiest or most handsome child in the world
You are just a human

Humans like to *think* that they can think things through and come up with the right answer
Unfortunately, that is not valid

You have read through this thread and admitted that we know more than you about the subject
Then you ask, "Are you sure?"

Let me answer that as succinctly as I can
Yes. We are sure

If there were another way, we most assuredly would be crowing about it
LPM's are expensive
Professional LPM's are SIGNIFICANTLY more costly than any of the REALLY CHEAP "hobbyists" LPM's offered
If you think that a Laserbee 5W costs more than you want to spend, try pricing out a Scientech S310 or H410
NO ONE here *wants* to spend money on an LPM

Unfortunately for the hobby:
Retailers, especially the Chinese "mega retailers", are as willing to lie to you as your mommy and grammy are

If you read through this thread (instead of just jumping to the end to write your response to the title of the thread like most Noob's do), you will have seen my post showing me lighting a match, instantly, with a 32mW laser.

Should we then surmise that all (or most) 35mW lasers can light a match instantly?

Even knowing what the current being produced is and which diode is in the laser, will only give us a **WIDE** range of potential outputs
If knowing that your laser is somewhere between 1.2W and 2.2W is enough for you (there is your only real potential "grey area"), then it doesn't really matter, does it?

If, however, you wish to have a reasonably close idea of what your laser is putting out, we *ALL* are left with this . . . . .

There is ONLY ONE WAY TO KNOW what the output on a particular laser is
You MUST measure it with a Laser Power Meter

Peace,
dave

Last edited by LaserCo; 05-14-2013 at 06:58 AM.
LaserCo is online now   Reply With Quote
Old 01-27-2014, 06:40 PM #47
weirdmeister's Avatar
Class 1 Laser
 
Join Date: Jan 2014
Posts: 68
Rep Power: 32
weirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond repute
weirdmeister weirdmeister is offline
Class 1 Laser
weirdmeister's Avatar
 
Join Date: Jan 2014
Posts: 68
Rep Power: 32
weirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond reputeweirdmeister has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

what about testing like ballistics gel?



take a worldwide available candle (wax) with a special colour eg brown (mass coloured-not surface), slice 2cm piece
and lay it on a light (neon or led-should be cold) to see trough a bit...shine on 30seconds with your lp from above and measure the depht and the diameter of the fresh molten pond and multiply them
depht will be more when focused,diameter will be more with non focus lp

what you think ?
weirdmeister is offline   Reply With Quote
Old 01-27-2014, 07:13 PM #48
TheDukeAnumber1's Avatar
Class 3R Laser
 
Join Date: Jun 2012
Location: Illinois
Posts: 2,036
Rep Power: 516
TheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond repute
TheDukeAnumber1 TheDukeAnumber1 is offline
Class 3R Laser
TheDukeAnumber1's Avatar
 
Join Date: Jun 2012
Location: Illinois
Posts: 2,036
Rep Power: 516
TheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond reputeTheDukeAnumber1 has a reputation beyond repute
Default Re: What if I Don't Have an LPM?

Quote:
Originally Posted by weirdmeister View Post
what you think ?
Sounds similar to this.

http://laserpointerforums.com/f70/as...sfw-84476.html
__________________
“Absence of evidence isn't evidence of absence."
http://laserpointerforums.com/donations.htm
“It is impossible that any ill should happen to the man who is beloved of the Lord; the most crushing calamities can only shorten his journey and hasten him to his reward. Ill to him is no ill, but only good in a mysterious form. Losses enrich him, sickness is his medicine, reproach is his honour, death is his gain. No evil in the strict sense of the word can happen to him, for everything is overruled for good. Happy is he who is in such a case. He is secure where others are in peril, he lives where others die.”—Spurgeon
Avatar by Yohsi Yaki
TheDukeAnumber1 is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Top 50 Laser Pointer Companies - Green Lasers Top 50 Laser Pointer Companies - Blue Lasers Top 50 Laser Pointer Companies - Red Lasers
Top 50 Laser Pointer Companies - Yellow Lasers Top 50 Laser Pointer Companies - Purple Lasers Top 50 Laser Pointer Companies - Orange Lasers
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes




Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 05:13 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2016 Laser Pointer Forums, LLC