30 replies to this topic

[Erick Perez Gonzalez]

I just got my laser today as soon I as opened it, put into it some 1,5 V AAA batteries Energizer
When I turned on I realized it was lower than I expected. Theres no beam, no heat...in other words it doesnt burn anything.

Other problem is the plastic wheel, I have to move it to get it working sometimes it does sometimes it doesnt

Joe N. told me to put an aluminium stick instead of the plastic wheel
so I tried to burn something and nothing i wont burn anything

so what could be the problem?

sorry for bad english

[Jalen]

It seems that alot of people are having low power problems with the E3 lately.

[cvbcbcmv]

Well define no heat. You won't really get a beam with 650nm. An extremely dim one in a very dusty pitch black room. Also, you won't get heat on your skin with 650nm.

[jhawins]

cvbcbcmv, on 21 February 2012 - 03:46 AM, said:

. Also, you won't get heat on your skin with 650nm.

Why not...

[joelslasers]

cvbcbcmv, on 21 February 2012 - 03:46 AM, said:

Also, you won't get heat on your skin with 650nm.

are you ok?
firstly, you don't "get heat on your skin" what is that even supposed to mean? (kind of funny, though )
secondly, it has nothing to do with the wavelength, and you know that (unless the object you point it at reflects or allows the beam to pass through.
third, it is near infrared. whenever you feel heat, its actually infrared light. unless you actually touch an object that has a higher kinetic energy than yourself (or lower. this would feel cold) not saying this is infrared light (remember, the wavelength has nothing to do with the "heat" of it. i am just stating almost all objects emit infrared light if they have kinetic energy at the atomic level (( everything has energy a the atomic level because you can't reach 0 degrees K)))

erick, please contact joe N. on this forum (he might post here in a little bit) and request an RMA for the laser because of low power. He will be glad to help you.

[Cyparagon]

He means light skin will absorb less red light compared to green or blue. It is possible to have several watts of near IR laser on your skin and feel nothing.

joelslasers, on 21 February 2012 - 03:06 PM, said:

whenever you feel heat, its actually infrared light

That is not always the case though. Most of the heat you feel from the sun for example comes from the visible spectrum.

joelslasers, on 21 February 2012 - 03:06 PM, said:

whenever you feel heat, its actually infrared light. unless you actually touch an object that has a higher kinetic energy than yourself

Convection and phase changes can also transfer heat.

joelslasers, on 21 February 2012 - 03:06 PM, said:

unless you actually touch an object that has a higher kinetic energy than yourself

Heat is technically kinetic energy, but kinetic energy is not heat. You're saying if you touch a moving object (or even touch a very large cold object), you will feel heat.

[cvbcbcmv]

Cyparagon, on 21 February 2012 - 07:22 PM, said:

He means light skin will absorb less red light compared to green or blue. It is possible to have several watts of near IR laser on your skin and feel nothing.



That is not always the case though. Most of the heat you feel from the sun for example comes from the visible spectrum.



Convection and phase changes can also transfer heat.

exactly. I had no reason to go into extreme detail, what I said answered his question!

[lelouch]

i was told from suppord, that it can burn things like balloons, but i got exact the same problem

[jhawins]

joelslasers, on 21 February 2012 - 03:06 PM, said:

are you ok?
firstly, you don't "get heat on your skin" what is that even supposed to mean? (kind of funny, though )
secondly, it has nothing to do with the wavelength, and you know that (unless the object you point it at reflects or allows the beam to pass through.
third, it is near infrared. whenever you feel heat, its actually infrared light. unless you actually touch an object that has a higher kinetic energy than yourself

NO. Lol that was hilarious to read though, thanks for the laugh.

[joelslasers]

Cyparagon, on 21 February 2012 - 07:22 PM, said:

He means light skin will absorb less red light compared to green or blue. It is possible to have several watts of near IR laser on your skin and feel nothing.

That is not always the case though. Most of the heat you feel from the sun for example comes from the visible spectrum.

Convection and phase changes can also transfer heat.


Heat is technically kinetic energy, but kinetic energy is not heat. You're saying if you touch a moving object (or even touch a very large cold object), you will feel heat.

1.I understand. But that last part, you sire about that???
2. Later on I say this.
3.phase changes transferring heat? Also convection, but that's not the point.
4. No, that's not what I was saying. All objects have heat (thermal energy.) even if the object is 200 degrees below 0F
I was saying, if you would have read a little more, that heat is kinetic energy at the atomic level.

[jhawins]

joelslasers, on 22 February 2012 - 03:15 PM, said:

1.I understand. But that last part, you sire about that???
2. Later on I say this.
3.phase changes transferring heat? Also convection, but that's not the point.
4. No, that's not what I was saying. All objects have heat (thermal energy.) even if the object is 200 degrees below 0F
I was saying, if you would have read a little more, that heat is kinetic energy at the atomic level.

It's hard to follow this sorry, it works writer if you quote the part your replying to separately and replyto parts individually.

No offense intended just a suggestion.

[Cyparagon]

joelslasers, on 22 February 2012 - 03:15 PM, said:

phase changes transferring heat? Also convection, but that's not the point.

You said heat transfer happens either by radiation or conduction. That IS the point.

joelslasers, on 22 February 2012 - 03:15 PM, said:

No, that's not what I was saying.

It may not have been what you meant, but it is what you said. Read my comment about kinetic energy again. It is not interchangeable with heat.

[joelslasers]

Cyparagon, on 22 February 2012 - 09:19 PM, said:

You said heat transfer happens either by radiation or conduction. That IS the point.

i did not say EITHER, and that is NOT the point.

Cyparagon, on 22 February 2012 - 09:19 PM, said:

It may not have been what you meant, but it is what you said. Read my comment about kinetic energy again. It is not interchangeable with heat.

do you just read until you find something you can argue against?
read further........it would be the third time.............
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l
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V

Quote

4. No, that's not what I was saying. All objects have heat (thermal energy.) even if the object is 200 degrees below 0F
I was saying, if you would have read a little more, that heat is kinetic energy at the atomic level.

[Cyparagon]

Alright, since you're choosing to ignore this part, I'll say it again. Heat is kinetic energy, but kinetic energy is not heat.

Moving objects also have kinetic energy, but you won't feel heat from touching a moving object.

[joelslasers]

Cyparagon, on 23 February 2012 - 03:19 AM, said:

Alright, since you're choosing to ignore this part, I'll say it again. Heat is kinetic energy, but kinetic energy is not heat.

Moving objects also have kinetic energy, but you won't feel heat from touching a moving object.

i never said it was. tell me where i said "moving objects have to have heat just because they're moving"

also, atoms are ALWAYS moving. therefor they have heat.
**NOTICE** i said ATOMS, not the collection of atoms moving through space. just the atoms vibrating. vibrating atoms have HEAT (kinetic energy).

[jhawins]

joelslasers, on 23 February 2012 - 04:00 AM, said:

i never said it was. tell me where i said "moving objects have to have heat just because they're moving"

also, atoms are ALWAYS moving. therefor they have heat.
**NOTICE** i said ATOMS, not the collection of atoms moving through space. just the atoms vibrating. vibrating atoms have HEAT (kinetic energy).

Lol this would be embarrassing to me if I said it. Seriously grow up... Always throwing these little temper tantrums and fits.

You said that heat IS kinetic energy.

[joelslasers]

jhawins, on 23 February 2012 - 05:22 AM, said:

Lol this would be embarrassing to me if I said it. Seriously grow up... Always throwing these little temper tantrums and fits.

You said that heat IS kinetic energy.

i am sorry you feel this way.
heat is kinetic energy on the atomic scale

exerpt from http://en.wikipedia..../Thermal_energy


"Microscopically, the thermal energy is the kinetic energy of a system's constituent particles, which may be atoms, molecules, electrons, or particles in plasmas. It originates from the individually random, or disordered, motion of particles in a large ensemble."

[jhawins]

joelslasers, on 23 February 2012 - 05:35 AM, said:

i am sorry you feel this way.
heat is kinetic energy on the atomic scale

exerpt from http://en.wikipedia..../Thermal_energy


"Microscopically, the thermal energy is the kinetic energy of a system's constituent particles, which may be atoms, molecules, electrons, or particles in plasmas. It originates from the individually random, or disordered, motion of particles in a large ensemble."

I never said you were wrong... Cyparagon seems to be arguing that not all kinetic energy is heat, but I actually don't see you saying that kinetic energy must be heat, only that heat is kinetic energy. Which seems accurate to me.

[joelslasers]

And then there was peace......for cyparagon stopped posting nonsense, attempting to disprove factual information

[jhawins]

joelslasers, on 24 February 2012 - 04:32 AM, said:

And then there was peace......for cyparagon stopped posting nonsense, attempting to disprove factual information

Ok now your the one being immature. Gloating? Really? Grow up.