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02-08-2018, 12:38 AM #33
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Re: Infrared laser pointers?

With butter, salt and pepper?

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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

02-08-2018, 01:37 AM #34
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Encap
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Re: Infrared laser pointers?

Quote:
 Originally Posted by rstevens I found an infrared laser on amazon, it looks like this is AC, though (standard wall plug). I realize its meant for lab/ testing, etc, but thats not what Im going to use it for. This is the laser...https://www.amazon.com/Focusable-300...MAHA4J03QMG2JT Doe this look like it would work for my purposes? I think I may need a heatsink as it doesnt look like it has one. It didnt mention, but a rough estimate, how far would this laser reach?
You don't even comprehend an Amazon listing for an IR Line Laser much less the use of any laser responsibly.
You are an accident looking for a place to happen.

Stop posting proof you don't use the brains you were born with. Everybody "gets it" already.

Last edited by Encap; 02-08-2018 at 06:59 PM.

02-08-2018, 01:11 PM #35
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Blarg King
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Re: Infrared laser pointers?

300 mW of completely invisible laser radiation in the hands of a newb....

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Last edited by Blarg King; 02-08-2018 at 01:12 PM.

02-08-2018, 09:06 PM #36
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paul1598419
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Re: Infrared laser pointers?

That laser produces a line, not a dot. It is totally inappropriate for signaling aliens or whatever lives in the clouds.
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02-08-2018, 09:32 PM #37
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,567 Rep Power: 1781829
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Re: Infrared laser pointers?

With the recent disclosure by the U.S. government which has started, there may be a lot more folk showing up here wanting lasers to signal ET with.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

02-09-2018, 01:29 AM #38
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Re: Infrared laser pointers?

It seems like a really unlikely and inefficient way to potentially communicate with (as of right now) hypothetical aliens. Using a beam of light that requires line-of-sight and is easily blocked by atmospheric conditions doesn't really seem like an ideal choice for a highly advanced galaxy traversing race of beings.
__________________
405- 45 mW ebay pen
405- 800 mW 501B
445- 1.7 Watt Blord 501B
473- 10 mW B&W Tek Labby
520- 150 mW LaserBTB HL520
532- 40 mW ebay pen
532- 80 mW WickedLasers Fusion
532- 220 mW SkyLasers
638- 180 mW 501B
638- 5 mW LaserGlow Libra
633- 1 mW Uniphase Novette HeNe
638- 1 mW HeNe Tube
980- 60 mW ebay pen

02-09-2018, 01:50 AM #39
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Re: Infrared laser pointers?

I believe a lot of the guys wanting to talk to ET are mostly disillusioned souls hoping for intelligent life in the universe, human beings aren't so smart when it comes to the important things, like not building nukes which could wipe us all out. i don't know if a laser would really get the attention of a hypothetical alien anyway, those types are only hypothetical - our culture is still a mix of those who think they are coming here and those who do not, some who are afraid to put on their tin hats and admit they too consider it a reality, but in time i think this will shake out to where we won't need tin hats to talk about it.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 02-09-2018 at 05:59 AM. Reason: added ly to most

02-09-2018, 05:54 AM #40
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Re: Infrared laser pointers?

Quote:
 Originally Posted by rstevens Ive been looking around for an infrared laser pointer, and am somewhat confused. Ive read other threads from people saying the relatively cheap ones available online are nowhere close to being as powerful as they are advertised, but there have been studies done that say these cheap lasers are MUCH more powerful than they are advertised, so Im not sure which is correct. Im also looking for any advice as to the best place to order an infrared laser pointer, all the ones Ive been looking at seem to be coming from China, so not sure how that works. thanks!

Just my 2 cents:

Even 5 mW IR laser is not safe - it is out of human spectre perception, therefore no blink reflex protection. I highly recommend OP to get some red (like 650 nm) visible laser pointer <5 mW as first starter instead of IR. Just for safety reasons. There is no need to mess with IR laser without experience with lasers - what if there is an unintended reflection at close distance? What if laser is on and OP is not aware and crosses the beam with eyes? What if someone else is injured? Too much risk with potentially severe consequences for rest of life -> not worth.
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"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."
"If you do not feel and experience the magic, you cannot become the master of wizardry."

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532 nm | 800 mW | Sky Lasers PL

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Last edited by Radim; 02-09-2018 at 05:58 AM.

02-09-2018, 05:59 AM #41
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,567 Rep Power: 1781829
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Re: Infrared laser pointers?

Eh, I really think this was thread was created as a joke anyway.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

02-09-2018, 03:52 PM #42
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Re: Infrared laser pointers?

Yeah, Alaskan, I hope so. But if it was not, it is better to have this information for OP as well as others not aware. Still I see jokes related to safety rules breaking as stupid. We cannot know what weak mind could follow that and get injured or injure someone. No need to make hobby more regulated than it is now.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."
"If you do not feel and experience the magic, you cannot become the master of wizardry."

Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

532 nm | 1.4+ W | Optotronics RPL-II
589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some pointers)

Wishlisted:
Sanwu's RGB Portable

Laserpainting art:
Latest artwork: The Pandora's Black Box

The Hologram Question has just been answered! (wazup post)

LPF social media hashtag: #laserpointerforums

02-09-2018, 04:27 PM #43
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,567 Rep Power: 1781829
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Re: Infrared laser pointers?

It turned into an ET thread with his comments why he wanted it, that's what I meant by joke, not the safety aspect that is no joke.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

02-09-2018, 04:39 PM #44
 Class 3R Laser Join Date: Aug 2016 Location: European Union Posts: 1,305 Rep Power: 804924
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Re: Infrared laser pointers?

Allright, my misunderstanding. No prob.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."
"If you do not feel and experience the magic, you cannot become the master of wizardry."

Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

532 nm | 1.4+ W | Optotronics RPL-II
589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some pointers)

Wishlisted:
Sanwu's RGB Portable

Laserpainting art:
Latest artwork: The Pandora's Black Box

The Hologram Question has just been answered! (wazup post)

LPF social media hashtag: #laserpointerforums

02-09-2018, 05:11 PM #45
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,567 Rep Power: 1781829
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Re: Infrared laser pointers?

This thread is a typical LPF response to newbies interested in IR pointers, but then the OP decided to ramp it up more by letting us know why he wanted it, in so many words; to flash ET. After that I didn't think this guy really wanted an IR laser, the thread all probably a tin hat made up spoof from the start, this thread something our old buddy VG would likely create, as he particularly liked to poke fun at this subject. I suppose it is possible he was legit because there are people using IR lasers to point at UFO's in the sky hoping for a free ride or for what they believe are extra terrestrial craft to come closer and give a show to put on YouTube. Good thing IR, I don't think IR lasers are a hazard to distant aircraft due to their high divergence, far better to use high mRad diverging IR pointers than flashing unknown flying objects with tight beamed green lasers.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

02-09-2018, 05:27 PM #46
 Class 3R Laser Join Date: Aug 2016 Location: European Union Posts: 1,305 Rep Power: 804924
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Re: Infrared laser pointers?

To be honest I use The Beast to deter extraterrestial spacecrafts. Have you seen any recently? I did not. It is thanks to me playing with that Optotronics jewel.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."
"If you do not feel and experience the magic, you cannot become the master of wizardry."

Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

532 nm | 1.4+ W | Optotronics RPL-II
589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some pointers)

Wishlisted:
Sanwu's RGB Portable

Laserpainting art:
Latest artwork: The Pandora's Black Box

The Hologram Question has just been answered! (wazup post)

LPF social media hashtag: #laserpointerforums

02-09-2018, 05:48 PM #47
 Super Moderator Join Date: Jan 2014 Location: Qatar, land of the hot footed. Posts: 9,567 Rep Power: 1781829
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Re: Infrared laser pointers?

I've seen things I had to attribute to being aircraft of some type far beyond our technological capabilities, three times now, but do I really know what they were beyond that idea? Nope.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3

02-10-2018, 03:18 PM #48
 Junior Member Join Date: Feb 2018 Posts: 6 Rep Power: 0
rstevens
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Re: Infrared laser pointers?

Quote:
 Originally Posted by Alaskan This thread is a typical LPF response to newbies interested in IR pointers, but then the OP decided to ramp it up more by letting us know why he wanted it, in so many words; to flash ET. After that I didn't think this guy really wanted an IR laser, the thread all probably a tin hat made up spoof from the start, this thread something our old buddy VG would likely create, as he particularly liked to poke fun at this subject. I suppose it is possible he was legit because there are people using IR lasers to point at UFO's in the sky hoping for a free ride or for what they believe are extra terrestrial craft to come closer and give a show to put on YouTube. Good thing IR, I don't think IR lasers are a hazard to distant aircraft due to their high divergence, far better to use high mRad diverging IR pointers than flashing unknown flying objects with tight beamed green lasers.
I am legit, it is my first time on here. but I have realized I need to learn more about IR and lasers in general before going off and buying one or making one. Im going to spend some time reading up on these things before I do anything.

The experiment I mentioned is also legit, Im not hoping for a free ride or a show, Im more interested in learning if they are man-made or something else and their purpose for coming to this area numerous times.

If you do not believe me, take an IR camera and point it at the sky for an extended period (night and daytime) and see for yourself.

Last edited by rstevens; 02-10-2018 at 03:21 PM.

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