Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Need a picture of a LPM measurement for a green laser

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
I was looking for someone who could help me get a picture of a measurement in the low 40mW range? I need to return a laser and in order to do so I need to show them a real measurement from an LPM. I used some methods on the forums that use IR thermometers or measuring the temperature change in water with a black base and such.

If you can help please let me know as a reply or PM me ASAP. I may be able to offer some small compensation for your efforts in aiding me with my issues.
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
Thanks for the reply Trevor! I went ahead and check out that thread prior to starting a thread, but unfortunately I live in Hawaii and there is no reasonable way for me to meet with someone or ship anything since it costs quite a bit extra to send things with a battery and a lot of extra time. (I'm heading up to sacrament California in about 2 weeks, so if anyone is reasonably close with a pocket LPM let me know!!)
 

Trevor

Well-known member
Joined
Jul 17, 2009
Messages
4,513
Points
113
So... you just want a picture of an LPM at 40mW...? :thinking:

Trevor
 

hwang21

Well-known member
Joined
Mar 27, 2013
Messages
2,351
Points
48
Odd request... easily done, for sure, but... :thinking:
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
Yes that's all I need, and it is an odd request. But 40-45mW is good 50 is also fine if that's what is being read. But it can't have the actual laser pointer in the picture, but the beam is fine.
 

Trevor

Well-known member
Joined
Jul 17, 2009
Messages
4,513
Points
113
So what you're asking us to do is falsify a test for you. No thanks.

Goodbye.

Trevor
 
Last edited:

ARG

Well-known member
Joined
Feb 27, 2011
Messages
6,987
Points
113
Errr, yeah.

If you need an LPM measurement to return the laser then go get the laser measured.
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
I have done tests thought up by others which have a relatively fair amount of accuracy being 15-20% off. Both tests brought me around the low 40s which I was expecting. I was very skeptical about getting a 200mW laser for around $55. All I want is a refund, but The seller (from Amazon market place) refused to give me a refund on my purchase without a laser power meter reading.

If falsifying a test for this purpose is against the rules of the forum I'll be glad to delete this or whatever is the correct thing to do, but if it isn't and there is someone willing to help me, please let me know!
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
Errr, yeah.

If you need an LPM measurement to return the laser then go get the laser measured.
If it was that simple I would, but being from Hawaii there aren't many options. Shipping anything from here is hell, not to mention with a rechargeable lithium ion battery -.-
 

Jacob32123

New member
Joined
Nov 14, 2009
Messages
766
Points
0
Thanks for the reply Trevor! I went ahead and check out that thread prior to starting a thread, but unfortunately I live in Hawaii and there is no reasonable way for me to meet with someone or ship anything since it costs quite a bit extra to send things with a battery and a lot of extra time. (I'm heading up to sacrament California in about 2 weeks, so if anyone is reasonably close with a pocket LPM let me know!!)
What kind of battery does it take? Someone with an LPM probably has the same kind of battery that they can test it with.

A flat rate box should be ~$5 both ways.
 

ARG

Well-known member
Joined
Feb 27, 2011
Messages
6,987
Points
113
Yeah, just mail it without the battery to any vet with an LPM :)

The only real way to know a laser power is with an LPM.

Also, those tests are extremely rough and the accuracy is probably more like +/-20mW and 15-20% off.
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
What kind of battery does it take? Someone with an LPM probably has the same kind of battery that they can test it with.

A flat rate box should be ~$5 both ways.
Well I'm sure people have a 4000mAh 4.7v battery for other lasers, it seems pretty common. I'll see if I can find someone around Sacramento- San Francisco area with an LPM. Otherwise I'll be looking for a vet to test out my laser. If it turns out that they won't refund me after too long I'll end up buying a DX green module. Or is there someone here who sells them for that price or close to it or lower?:) I'm looking for something that can light matches or fuses focused at infinity, probably at least around 90-100mW? (Unsure about that but it seems to me the Internet's conclusion is around there) 200mW would be ideal.
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
Yeah, just mail it without the battery to any vet with an LPM :)

The only real way to know a laser power is with an LPM.

Also, those tests are extremely rough and the accuracy is probably more like +/-20mW and 15-20% off.
Yeah, I accepted that and decided to just try testing it, I tested it about 5 times and averaged it to the low 40s. +/- 20-30mW is still nowhere near the 200mW that was advertised :p who knows I could have a 5mW laser pointer LOL my eyes can't tel the difference while wearing my green blue laser glasses/goggles.
 

ARG

Well-known member
Joined
Feb 27, 2011
Messages
6,987
Points
113
That is true, but it still doesn't sit well with me to falsify a reading; even though your assumption is may be correct.
 

Noahwhite2014

New member
Joined
Jul 14, 2013
Messages
13
Points
0
Not to worry I completely understand where you're coming from! Hopefully I can get an LPM when I can afford it so is can get real and accurate readings ^^
 




Top