Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
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
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























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



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 05-22-2017, 05:27 PM #1
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
repur32 repur32 is offline
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
Default handheld laser for signalling?

New member here, and although fascinated by lasers (aren't we all?!), I have limited first-hand experience with the kinds of lasers seen on here.

We do lots of camping/boating/riding in the deserts of Southern Utah and down on the Baja peninsula and have always used satellite phones (only thing that gets a signal in many parts of the area) to communicate and coordinate between parties. But they're expensive, and even when combined with better GPS technology these days, sometimes a pain to try and get everyone from multiple parties all to the same location. We're hoping to add to the arsenal by using handheld lasers to send up a very visible beacon so we can see where the respective parties are and help in getting everyone to the same place. Not planning to rely on them so much as a rescue beacon, more just for a visual aid to help us see where each other is at.

I'm envisioning that we'd send up a beam and wave it around, bounce off clouds,etc while talking on the Sat phones. So I don't need anything which is on continuously (2-3 min at a time), but I want the absolute most visible beam that we can easily and clearly see from distance. Mostly remote areas without any urban light so it's generally very dark where we're at.

A friend brought a Wicked laser camping with us once (green or blue--don't remember which), looked like a light saber, said it was the "most powerful laser avail". Wish i remember which one he had to know what the specs were and then I'd just buy a few like it because whatever it was would work perfect for what we want.

Can someone steer me in the right direction and help me figure out what I need and if possible where to buy? (I'm tempted to just pull trigger on a few Wicked Kryptons or Arctics but not certain that's what he had or if that's what I need and I'm guessing that technology has evolved in the 4 years since I last saw a "big" laser like the one he had.

Trying to decide:
What color beam? blue or green?
Power? Hard to figure out what I need to spend for what I need since the internet is full of so many false claims but I was hoping to find something powerful enough in the $500 range. I'd pay more if it meant having something much more visible. Wicked's most expensive are within this range but maybe there's something better?

I don't care about burning stuff, don't really care about aesthetics, looking at it more as just a utilitarian tool.

Aside from color, power, and intended use, are there other things I need to be considering?

Thanks for any help!


repur32 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 05-22-2017, 05:52 PM #2
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,727
Rep Power: 40861
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: 15,727
Rep Power: 40861
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: handheld laser for signalling?

Quote:
Originally Posted by repur32 View Post
New member here, and although fascinated by lasers (aren't we all?!), I have limited first-hand experience with the kinds of lasers seen on here.

We do lots of camping/boating/riding in the deserts of Southern Utah and down on the Baja peninsula and have always used satellite phones (only thing that gets a signal in many parts of the area) to communicate and coordinate between parties. But they're expensive, and even when combined with better GPS technology these days, sometimes a pain to try and get everyone from multiple parties all to the same location. We're hoping to add to the arsenal by using handheld lasers to send up a very visible beacon so we can see where the respective parties are and help in getting everyone to the same place. Not planning to rely on them so much as a rescue beacon, more just for a visual aid to help us see where each other is at.

I'm envisioning that we'd send up a beam and wave it around, bounce off clouds,etc while talking on the Sat phones. So I don't need anything which is on continuously (2-3 min at a time), but I want the absolute most visible beam that we can easily and clearly see from distance. Mostly remote areas without any urban light so it's generally very dark where we're at.

A friend brought a Wicked laser camping with us once (green or blue--don't remember which), looked like a light saber, said it was the "most powerful laser avail". Wish i remember which one he had to know what the specs were and then I'd just buy a few like it because whatever it was would work perfect for what we want.

Can someone steer me in the right direction and help me figure out what I need and if possible where to buy? (I'm tempted to just pull trigger on a few Wicked Kryptons or Arctics but not certain that's what he had or if that's what I need and I'm guessing that technology has evolved in the 4 years since I last saw a "big" laser like the one he had.

Trying to decide:
What color beam? blue or green?
Power? Hard to figure out what I need to spend for what I need since the internet is full of so many false claims but I was hoping to find something powerful enough in the $500 range. I'd pay more if it meant having something much more visible. Wicked's most expensive are within this range but maybe there's something better?

I don't care about burning stuff, don't really care about aesthetics, looking at it more as just a utilitarian tool.

Aside from color, power, and intended use, are there other things I need to be considering?

Thanks for any help!
Green is closer to the Human Eye's maximum response
sensitivity.

Yes.... for any Laser >5mW appropriate Laser Safety
Goggles/Glasses are a must.

FYI... you are probably referring to the Wicked Lasers
450nm (Blue) Arctic. The WL "world's most powerfull laser"
hypeis just that... marketing hype. WL Laser's are way
overpriced and build quality is not that great.
Even back then there were more powerful Lasers and most
of them came from our own members.

It would have been nice if you introduced yourself to the
Forum in the Welcome section.

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..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 05-22-2017 at 05:55 PM.
lasersbee is offline   Reply With Quote
Old 05-22-2017, 06:05 PM #3
10fenny's Avatar
Class 2M Laser
 
Join Date: Sep 2014
Location: PDX- Now KY sigh
Posts: 969
Rep Power: 9869
10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute
10fenny 10fenny is online now
Class 2M Laser
10fenny's Avatar
 
Join Date: Sep 2014
Location: PDX- Now KY sigh
Posts: 969
Rep Power: 9869
10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute
Default Re: handheld laser for signalling?

Yea I would stay away from wl with whatever you decide to do. Super over priced
__________________
Notable Lasers:
405nm Blue-ray16x Build 850mW
445nm M140 Build 2100mW
450nm Build 70mW
515nm Build 60mW
520nm Build 175mW
520nm Build 1.1W
589nm DL Spartan 78mW peak
638nm Oclaro Build 900mW
650nm Nintendo Build 280mWhttp://laserpointerforums.com/f50/fi...wer-92152.html
650nm 5mW Rubber Ducky Build http://laserpointerforums.com/f50/ru...ser-92717.html
685nm Build 15mW http://laserpointerforums.com/f50/pr...ink-94332.html
RGV Projector
1.8W RGB Projector
Pangolins Quickshow!!
APC 40 Midi Controller
APC Mini Midi Controller
1200Watt 1byOne Fog Machine- almost too strong!
Chauvet Obey 40 DMX Controller
10fenny is online now   Reply With Quote
Old 05-22-2017, 06:41 PM #4
Radim's Avatar
Class 3R Laser
 
Join Date: Aug 2016
Location: European Union
Posts: 1,078
Rep Power: 27615
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Radim Radim is online now
Class 3R Laser
Radim's Avatar
 
Join Date: Aug 2016
Location: European Union
Posts: 1,078
Rep Power: 27615
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Default Re: handheld laser for signalling?

Well, this is complicated question. It depends what conditions. Why do not use walkie talkie instead? Might have better range than laser if pointing on clouds. On long range there must be direct visibility - from side it is harder to see the beam and might be dangerous due to high powers needed.

Laser of green color is more visible in day, blue is better for night conditions. Violet is not suitable. Red might be interesting and not disturbing your vision during night. However it is not that visible as green and blue. You might want DPSS 532 nm green for good divergence (narrower beam) or less sensitive to damage/instability in mechanical/thermal way than green diode laser - 520 nm. Blue is likely only diode (465 nm or 445/450 nm), DPSS 473 nm will be likeley too weak (even it has better divergence). The power is also question but since I guess we are talking about class 4 (above 500 mW - half W) you need also to get a lot of knowledge about and experience in safety and make sure the laser is used safe way. Injury or death might occur (imagine hittig plane in serious emergency situation and disturbing pilots in saving lifes).

In other words - tell us more about your needs, terrain, distances and conditions you want to use your laser and the community will give you valuable and experienced advice.

Once you are sure of knowing what you want, we can direct you to the right product and company to get best fitting your needs and budget. Jetlasers is more for DPSS lasers and Sanwu more for diode just to give an example of companies.

Maybe you will find new ways how laser might be used, it is a very versatile light source.

Finaly welcome to the forum, get right decision and safety knowledge before ordering your laser and safety gear.

Stay safe and enjoy...
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


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 (Review)
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 laser pointers)

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 05-22-2017 at 07:16 PM.
Radim is online now   Reply With Quote
Old 05-22-2017, 07:58 PM #5
94Z28's Avatar
9428nm Laser
 
Join Date: Jul 2016
Location: North Carolina, USA
Posts: 518
Rep Power: 3333
94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute
94Z28 94Z28 is offline
9428nm Laser
94Z28's Avatar
 
Join Date: Jul 2016
Location: North Carolina, USA
Posts: 518
Rep Power: 3333
94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute94Z28 has a reputation beyond repute
Default Re: handheld laser for signalling?

If you are in a very dark location and want to send a "beacon" I would think a green or blue is the best bet. Although green (532nm DPSS) comes at a much higher cost at higher output when compared to 450nm Blue diodes.

Honestly, the 2W 450nm blues I have made many of them and they are insanely bright in a dark outdoor setting. I would guess they are visible for a good distance. I take my C6 2W 450nm with me camping as it's small enough to fit in my pocket, and it can run for 45-60 seconds straight before needing a rest. The best part is that it can be built at home for a low price (under 100$) or purchased for less than 150$ pre-made with all the upgrades you could want (extension tube for two 18650, copper heatsink, G2 lens, GITD switch cap, etc).

Just an opinion; Don't spend 500$ on an arctic when you can get the same thing in a smaller package for much less. In fact I have a JetLasers 2w+ for sale in the Buy/Sell section which is a large frame and highly trusted build. It also uses large capacity 26650 batteries and the duty cycle is much longer than you'll need. Not to mention anything JetLasers will absolutely outperform a WickedLaser unit in every category.

Hope you find the right unit for your needs! Do your research on whatever you choose, most any laser worth buying will be mentioned here on LPF somewhere.
__________________

405nm HL LaserBTB
JL PL-E Pro - NUBM07E
JL PL-E Pro 2W 445nm LPM @ 2.3W
M140 + SXD in Maglite until NUBM44 arrives

5mw Green laser 301 - 50mw Avg
532nm Star Pointer 60mw avg 115mw peak
Wicked Laser Nano w/ FT Module - 70mw
PL-E Pro NDG7475 In Progress

650nm LPC-826 in Custom Polished Heatsink
650nm LPC-826 Hugsby XP-2 EDC Build

1000+Lm Maglite XP-L @ 2.7A
BLF D80 Led Light Anodized
BLF A6 Anodized + Bare
CUSTOM 1600LM XML2 1A MTN

Hyperion LPM
Hantek 6022BE (DS Oscope)
"Budget" Bench Supply (Chinese)
HP Agilent 6289A (1.5A PS)
Hakko FX888D


Laser Build Estimation Tool @ HobbyLP
Submit your most epic laser build to me and get featured on HobbyLP Blog!


Last edited by 94Z28; 05-22-2017 at 07:59 PM.
94Z28 is offline   Reply With Quote
Old 05-22-2017, 10:20 PM #6
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: handheld laser for signalling?

Aside from the hazard of someone accidentally flashing a party member in the eye, I'd look at one of these JetLaser units with a beam expander on it to reduce the divergence so the beam stays far tighter for a much longer distance to make it easier to see. Can't count on clouds every time you are out or whether low enough to spot.



These would be better than a DPSS 532 nm green laser because they can operate in cold temperatures, 532 nm DPSS green are temperature sensitive and don't like to output much power when cold.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
.........................
PhotoB****t high jacking you too? Use this link instead:
http://imgbb.com

High resolution of my avatar: https://ibb.co/fWOhXF
Alaskan is offline   Reply With Quote
Old 05-23-2017, 02:11 AM #7
Class 3R Laser
 
Join Date: Jun 2007
Posts: 1,627
Rep Power: 13200
steve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond repute
steve001 steve001 is offline
Class 3R Laser
 
Join Date: Jun 2007
Posts: 1,627
Rep Power: 13200
steve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond repute
Default Re: handheld laser for signalling?

Quote:
Originally Posted by repur32 View Post
New member here, and although fascinated by lasers (aren't we all?!), I have limited first-hand experience with the kinds of lasers seen on here.

We do lots of camping/boating/riding in the deserts of Southern Utah and down on the Baja peninsula and have always used satellite phones (only thing that gets a signal in many parts of the area) to communicate and coordinate between parties. But they're expensive, and even when combined with better GPS technology these days, sometimes a pain to try and get everyone from multiple parties all to the same location. We're hoping to add to the arsenal by using handheld lasers to send up a very visible beacon so we can see where the respective parties are and help in getting everyone to the same place. Not planning to rely on them so much as a rescue beacon, more just for a visual aid to help us see where each other is at.

I'm envisioning that we'd send up a beam and wave it around, bounce off clouds,etc while talking on the Sat phones. So I don't need anything which is on continuously (2-3 min at a time), but I want the absolute most visible beam that we can easily and clearly see from distance. Mostly remote areas without any urban light so it's generally very dark where we're at.

A friend brought a Wicked laser camping with us once (green or blue--don't remember which), looked like a light saber, said it was the "most powerful laser avail". Wish i remember which one he had to know what the specs were and then I'd just buy a few like it because whatever it was would work perfect for what we want.

Can someone steer me in the right direction and help me figure out what I need and if possible where to buy? (I'm tempted to just pull trigger on a few Wicked Kryptons or Arctics but not certain that's what he had or if that's what I need and I'm guessing that technology has evolved in the 4 years since I last saw a "big" laser like the one he had.

Trying to decide:
What color beam? blue or green?
Power? Hard to figure out what I need to spend for what I need since the internet is full of so many false claims but I was hoping to find something powerful enough in the $500 range. I'd pay more if it meant having something much more visible. Wicked's most expensive are within this range but maybe there's something better?

I don't care about burning stuff, don't really care about aesthetics, looking at it more as just a utilitarian tool.

Aside from color, power, and intended use, are there other things I need to be considering?

Thanks for any help!
Interesting idea, but not really practical. In dry air you won't see a thing. You won't see a spot on clouds either, clouds are poor reflectors. In humid air or dusty you might see a beam, if you do you're close enough that you could likely use a 5mw 532nm laser an point it in the direction of your friends. It would be easier to use longitude and latitude coordinates to meet up. High lumen led flashlights would be practical and utilitarian in this situation. If you're set on the idea then do it with Class 4 lasers blue or 532nm green.

Last edited by steve001; 05-23-2017 at 02:30 AM.
steve001 is offline   Reply With Quote
Old 05-23-2017, 05:32 AM #8
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: handheld laser for signalling?

I had concerns about such too, once set a laser pointing up and walked 500 feet away, even at 1 watt of green, the beam just isn't very bright.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
.........................
PhotoB****t high jacking you too? Use this link instead:
http://imgbb.com

High resolution of my avatar: https://ibb.co/fWOhXF
Alaskan is offline   Reply With Quote
Old 05-23-2017, 06:07 AM #9
Radim's Avatar
Class 3R Laser
 
Join Date: Aug 2016
Location: European Union
Posts: 1,078
Rep Power: 27615
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Radim Radim is online now
Class 3R Laser
Radim's Avatar
 
Join Date: Aug 2016
Location: European Union
Posts: 1,078
Rep Power: 27615
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Default Re: handheld laser for signalling?

Yes, that's true as Alaskan said. The best possible use would be looong range signaling by pointing supposed direction with spreaded beam (for larger coverage), still there might be flashlight designed for that purposes more useful (and safe). Or you might point some reference point (hill, rock, etc.). Maybe you need strobe function as flashing light attracts more attention. Maybe stroboscope designed for that. I use kind of small stroboscope for night scuba diving, there is a little flashlamp like in camera flash. It's powered by three AA batts, I have seen model using just two as well. Very visible and lasts quite long. Laser might be cool but not fitting your needs. Still there might be other uses, where you can find reason why to get it.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


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 (Review)
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 laser pointers)

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 05-23-2017 at 06:09 AM.
Radim is online now   Reply With Quote
Old 05-23-2017, 10:29 AM #10
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: handheld laser for signalling?

A strobe with a parabolic reflector behind it pointing up ought to light up the spot.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
.........................
PhotoB****t high jacking you too? Use this link instead:
http://imgbb.com

High resolution of my avatar: https://ibb.co/fWOhXF
Alaskan is offline   Reply With Quote
Old 05-23-2017, 04:31 PM #11
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
repur32 repur32 is offline
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
Default Re: handheld laser for signalling?

This is awesome info--thx for all the responses!

Quote:
Originally Posted by lasersbee View Post

for any Laser >5mW appropriate Laser Safety
Goggles/Glasses are a must.

FYI... you are probably referring to the Wicked Lasers
450nm (Blue) Arctic. The WL "world's most powerfull laser"
hypeis just that... marketing hype. WL Laser's are way
overpriced and build quality is not that great.
Even back then there were more powerful Lasers and most
of them came from our own members.
Yep--that's probably what he had. Very cool! I'd never seen anything like it in person. Only pics of large lasers online. To see that big visible beam in person was dramatic! No wonder there's a forum out there dedicated to these things!
It would have been nice if you introduced yourself to the
Forum in the Welcome section.
My bad--sorry.
Jerry
Quote:
Originally Posted by Radim View Post
Well, this is complicated question. It depends what conditions. Why do not use walkie talkie instead? Might have better range than laser if pointing on clouds. On long range there must be direct visibility - from side it is harder to see the beam and might be dangerous due to high powers needed.
We have satellite phones that we take most of the time, although not all vehicles/parties have them. We also have 2-way radios in all the trucks. But even so, it's always a hassle to communicate so I was hoping to add one more tool to the arsenal to make it a bit easier.
Laser of green color is more visible in day, blue is better for night conditions. Violet is not suitable. Red might be interesting and not disturbing your vision during night. However it is not that visible as green and blue. You might want DPSS 532 nm green for good divergence (narrower beam) or less sensitive to damage/instability in mechanical/thermal way than green diode laser - 520 nm. Blue is likely only diode (465 nm or 445/450 nm), DPSS 473 nm will be likeley too weak (even it has better divergence). The power is also question but since I guess we are talking about class 4 (above 500 mW - half W) you need also to get a lot of knowledge about and experience in safety and make sure the laser is used safe way. Injury or death might occur (imagine hittig plane in serious emergency situation and disturbing pilots in saving lifes).
Good point about the sensitivity to temp and mechanical damage from jostling about. We'd probably lug them around in padded pelican cases like the other electronics gear we take, and we're not out in really bitter cold very often. I'm sorry--did you say 520 nm green was LESS sensitive to shock and cold?
In other words - tell us more about your needs, terrain, distances and conditions you want to use your laser and the community will give you valuable and experienced advice.
terrain, distance, conditions all vary depending on the trip. When at Lake powell last time, we were on boats down in deep and windy slot canyons trying to direct everyone to the same spot. I thought if we could have just shot up a beacon from down inside the slot, we'd be able to get visual reference where our respective parties were and then try to coordinate. But it sounds like distance might pose a problem if the beam isn't visible on a clear night from more than a mile or so.

Down in Baja, there are lots of silt beds that we'll usually stomp up a big cloud of dust and then use LED riding lights to shine up through the cloud. It works ok, but I though a really wide, colored laser beam shining up through the dust cloud would probably have been much more visible
Stay safe and enjoy...

Quote:
Originally Posted by steve001 View Post
Interesting idea, but not really practical. In dry air you won't see a thing. You won't see a spot on clouds either, clouds are poor reflectors. In humid air or dusty you might see a beam, if you do you're close enough that you could likely use a 5mw 532nm laser an point it in the direction of your friends. It would be easier to use longitude and latitude coordinates to meet up. High lumen led flashlights would be practical and utilitarian in this situation. If you're set on the idea then do it with Class 4 lasers blue or 532nm green.
yeah--I wasn't sure about how visible it would be in different conditions. We have insanely bright LED lights on all the vehicles and bikes, and that's what we use now for visual reference but unless there's dust, fog, something in the air, the LED beam gets lost, and at best, all you can see is the ground glowing from a distance. Down in slot canyons, behind rock formations, etc--we often can't see their lights. Sounds like we'll likely have the same problem even with a laser beam
Quote:
Originally Posted by Radim View Post
Yes, that's true as Alaskan said. The best possible use would be looong range signaling by pointing supposed direction with spreaded beam (for larger coverage), still there might be flashlight designed for that purposes more useful (and safe). Or you might point some reference point (hill, rock, etc.). Maybe you need strobe function as flashing light attracts more attention. Maybe stroboscope designed for that. I use kind of small stroboscope for night scuba diving, there is a little flashlamp like in camera flash. It's powered by three AA batts, I have seen model using just two as well. Very visible and lasts quite long. Laser might be cool but not fitting your needs. Still there might be other uses, where you can find reason why to get it.
The strobe is an interesting idea. I hadn't thought of anything like that. That might be pretty visible. I'll have to look into whether or not I can just buy/add some kind of strobe module to the super powerful riding lights we have.

For the nominal expense, I'll probably still buy a couple to take along, even if they don't perform the exact beacon function like I'd envisioned. pointing out rock formations or landmarks that we can use as visual reference, use on dusty or foggy nights, etc.--I'm sure we'll find some kind of use for it.

I can get a 5W 445nm from Jet for around $400. Sounds like a better company and better laser than the 3.5W Arctic from Wicked.

Thx for the input! I need to do a little more reading and research I guess.

Save
repur32 is offline   Reply With Quote
Old 05-23-2017, 04:46 PM #12
Alaskan's Avatar
Class 4 Laser
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Class 4 Laser
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Currently in Iraq.
Posts: 7,078
Rep Power: 48485
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: handheld laser for signalling?

445nm is a fairly short wavelength for signalling, our eyes are only about 10 percent as sensitive to that wavelength compared to green, or in other words, you can have a green laser pointer at 10 percent the power and it should be just about as bright, compared to a blue at that short of a wavelength. If you really want to use blue, for what ever reason, go with 462 nm or longer, will give you a few more percent of brightness for the same power. Now you could go with a 7 watt 445 nm NUBM44 laser and blast a lot of power to make up for our eyes insensitivity to that wavelength, but the you have a more hazardous pointer. I'd think the strobe in front of a parabolic mirror would be better, just aim it at the top of something high, should be visible for a long distance, more effective than a tiny little laser beam.
__________________

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

Laser Safety: http://www.laserpointersafety.com/index.html

Sam's Laser FAQ: Sam's Laser FAQ: Welcome Page

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
.........................
PhotoB****t high jacking you too? Use this link instead:
http://imgbb.com

High resolution of my avatar: https://ibb.co/fWOhXF
Alaskan is offline   Reply With Quote
Old 05-23-2017, 04:46 PM #13
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
repur32 repur32 is offline
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
Default Re: handheld laser for signalling?

Quote:
Originally Posted by Alaskan View Post
Aside from the hazard of someone accidentally flashing a party member in the eye, I'd look at one of these JetLaser units with a beam expander on it to reduce the divergence so the beam stays far tighter for a much longer distance to make it easier to see. Can't count on clouds every time you are out or whether low enough to spot.



These would be better than a DPSS 532 nm green laser because they can operate in cold temperatures, 532 nm DPSS green are temperature sensitive and don't like to output much power when cold.
Thanks Alaskan

So the 520 nm is better in the cold, which is good to know.

Jet has 2 different 520 nm

PL-E Pro and the PL-E Mini (the one you linked). As the name implies, is it just the size of the case which is different? Both are 1W and I assume the beam would be similar with either?
repur32 is offline   Reply With Quote
Old 05-23-2017, 04:56 PM #14
10fenny's Avatar
Class 2M Laser
 
Join Date: Sep 2014
Location: PDX- Now KY sigh
Posts: 969
Rep Power: 9869
10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute
10fenny 10fenny is online now
Class 2M Laser
10fenny's Avatar
 
Join Date: Sep 2014
Location: PDX- Now KY sigh
Posts: 969
Rep Power: 9869
10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute10fenny has a reputation beyond repute
Default Re: handheld laser for signalling?

Dpss 532 is better cold. 520nm is direct diode.
__________________
Notable Lasers:
405nm Blue-ray16x Build 850mW
445nm M140 Build 2100mW
450nm Build 70mW
515nm Build 60mW
520nm Build 175mW
520nm Build 1.1W
589nm DL Spartan 78mW peak
638nm Oclaro Build 900mW
650nm Nintendo Build 280mWhttp://laserpointerforums.com/f50/fi...wer-92152.html
650nm 5mW Rubber Ducky Build http://laserpointerforums.com/f50/ru...ser-92717.html
685nm Build 15mW http://laserpointerforums.com/f50/pr...ink-94332.html
RGV Projector
1.8W RGB Projector
Pangolins Quickshow!!
APC 40 Midi Controller
APC Mini Midi Controller
1200Watt 1byOne Fog Machine- almost too strong!
Chauvet Obey 40 DMX Controller
10fenny is online now   Reply With Quote
Old 05-23-2017, 04:56 PM #15
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
repur32 repur32 is offline
Junior Member
 
Join Date: May 2017
Posts: 4
Rep Power: 0
repur32 is on a distinguished road
Default Re: handheld laser for signalling?

Quote:
Originally Posted by Alaskan View Post
445nm is a fairly short wavelength for signalling, our eyes are only about 10 percent as sensitive to that wavelength compared to green, or in other words, you can have a green laser pointer at 10 percent the power and it should be just about as bright, compared to a blue at that short of a wavelength. If you really want to use blue, for what ever reason, go with 462 nm or longer, will give you a few more percent of brightness for the same power. Now you could go with a 7 watt 445 nm NUBM44 laser and blast a lot of power to make up for our eyes insensitivity to that wavelength, but the you have a more hazardous pointer. I'd think the strobe in front of a parabolic mirror would be better, just aim it at the top of something high, should be visible for a long distance, more effective than a tiny little laser beam.
I was actually thinking about getting one of each (blue and green). The more I read on here, and the more pics I see of units that other members have, the cooler I think they are and even if not optimal for signalling as originally intended, I still think it would be cool to own.

For signalling, I really like the parabolic mirror and the strobe idea. Our riding lights are in a mirrored housing. I'll have to look into how to add strobe feature to the existing lights. Some of my tactical flashlights have strobe mode. I'm guessing there's some kind of module I can buy and splice inline to our big lamps.
repur32 is offline   Reply With Quote
Old 05-23-2017, 05:05 PM #16
Radim's Avatar
Class 3R Laser
 
Join Date: Aug 2016
Location: European Union
Posts: 1,078
Rep Power: 27615
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Radim Radim is online now
Class 3R Laser
Radim's Avatar
 
Join Date: Aug 2016
Location: European Union
Posts: 1,078
Rep Power: 27615
Radim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond reputeRadim has a reputation beyond repute
Default Re: handheld laser for signalling?

You are welcome.
And yes - diodes are not that sensitive from obvious reasons. DPSS lasers sometimes even called DPSS frequency doubled lasers (DPSS stands for diode pumped solid state lasers) are sensitive due to their complexity. They are producing the visible beam through indirect proces: There is infrared laserdiode pumping energy into special crystal producing again infrared radiation (however of longer wavelength) - it is the solid state laser - and this radiation is frequency doubled by another crystal to produce visible wavelength (there is also infrared filter incorporated to block residual infrared radiation and allowing to pass only visible). As you can see much more components are used and therefore it is important to treat them gently as they might become misaligned during shock and laser will stop working. Also they are temperature sensitive in producing stable output and crystals might be sensitive to humidity as well. Diode laser, well there is just a diode directly giving you visible light instead of all the components I described you above. There are cons and pros of both technologies. I personally like more DPSS.

Take your time and make your decision wisely. Even I did not have any problem with Wicked Lasers (but they have quite bad reputation here from the past), I would select JetLasers or Sanwu. They have much more options than WL and with JetLasers I can confirm you will be treaten in extraordinary way and with valuable advice from customer care if you ask for it - they will go beyond their duty to make sure you are satisfied (see my review for reference - link in my signature). I have no experience with Sanwu, but they are well respected here as well. And in deed I consider acquiring their pocket series for my laserpainting needs and maybe even their 7 W beast. And one more thing - WL do not deliver high powered lasers into US anymore as a consequence you might get them from second hand buy at incredibly high prices as they are more collector items. So it is not wise for practical reason to buy specificaly WL in US.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


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 (Review)
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 laser pointers)

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 05-23-2017 at 05:09 PM.
Radim is online now   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








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
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 12:29 AM.


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