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 > Optics



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



Reply
 
LinkBack Thread Tools Display Modes
Old 06-03-2017, 10:01 AM #1
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Video Projector Zoom/Focus Assembly as Beam Expander

Just wanted to share my experience and some pics of a large Epson LCD video projector's zoom/focus assembly working as an excellent beam expander. An added benefit is that you do not need a collimating lens in front of the diode with this setup, the diode's output goes directly in to the assembly. The lenses are wideband AR coated and there was hardly any reflection at all from the input lest back to the diode. Output was pretty spectacular, these pictures are with an M462 and a PL520 as sources. I'm sort of itching to try this with an NUBM44..
Attached Thumbnails
Video Projector Zoom/Focus Assembly as Beam Expander-image100004.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100003.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100002.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100001.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100005.jpg  

Video Projector Zoom/Focus Assembly as Beam Expander-image100006.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100007.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100008.jpg  


__________________
If you take what I said, then put something better in there... that's what I should have said.

Last edited by aaronnoraa; 06-03-2017 at 10:04 AM.
aaronnoraa is offline   Reply With Quote







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







Old 06-03-2017, 10:02 AM #2
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

A couple more..
Attached Thumbnails
Video Projector Zoom/Focus Assembly as Beam Expander-image100009.jpg   Video Projector Zoom/Focus Assembly as Beam Expander-image100010.jpg  
__________________
If you take what I said, then put something better in there... that's what I should have said.
aaronnoraa is offline   Reply With Quote
Old 06-03-2017, 11:03 AM #3
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is offline
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Very Nice +++

This is what I want to see more of, repurposing what's at hand, I love to see people make something out of spare parts work, it's a cost effective way to obtain otherwise expensive special made parts and the desired results.

You may want to try a NUBM06 with it's GBall intact, I have been using them with the sanwu 3X BE and as long as the initial focus is anywhere from half a square to a line it produces a useful beam that does work.

If that setup has enough range of adjustment you could use a cylindrical pair or a prism pair although I prefer the cylindrical pair to correct that aggressive axis of a NUBM44, you will need a G2 primary but they are efficient so that's good and you can adjust to fit your units range.

I wonder about knife edging 3 or 4 NUBM44's with G2's, not focused to infinity but just reduced to a level 1 divergence such as the 462 puts out.

Many options can be tested, have fun and do post more pics.
__________________
You can not put freedom in a bag.
It is in fact an abstract concept.
Yet it is the single most valuable thing anyone has ever had.
RedCowboy is offline   Reply With Quote
Old 06-03-2017, 12:16 PM #4
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: Video Projector Zoom/Focus Assembly as Beam Expander

Quote:
Originally Posted by aaronnoraa View Post
A couple more..
Ok, interesting photos. The whole point and purpose of a beam expander is to create a smaller spot in the *"far field". In other words, showing photos of the beam in your bedroom does not demonstrate what a beam expander can do. You've got to find some distant object to do that type of demonstration. It would be interesting to include beam divergence measurements.

*Far field means a distance passed the Rayleigh Length.

Last edited by steve001; 06-03-2017 at 12:21 PM.
steve001 is offline   Reply With Quote
Old 06-03-2017, 12:23 PM #5
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is offline
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

I thought about that too and that's the range that could be compensated for by changing the input beams focus, it's worth a try, you may get wings but as it's a multi lens projector output zoomer you have a good chance.
__________________
You can not put freedom in a bag.
It is in fact an abstract concept.
Yet it is the single most valuable thing anyone has ever had.
RedCowboy is offline   Reply With Quote
Old 06-03-2017, 09:19 PM #6
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

I'll try to give a divergence measurement if I can get a long enough distance to me meaningful. I live near an airport so next time I remember when I'm heading out somewhere more accommodating I'll bring it along. I figured just the idea might be useful to people and if someone had one available that they might give it a shot themselves. I can say that it definitely is reducing divergence as a beam expander should, the M462 does not expand a measurable amount in 25 feet when it very clearly expands as a bare beam.. though yes, I'm interested to see what it does at a few hundred feet myself.
__________________
If you take what I said, then put something better in there... that's what I should have said.

Last edited by aaronnoraa; 06-03-2017 at 09:22 PM.
aaronnoraa is offline   Reply With Quote
Old 06-03-2017, 09:30 PM #7
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Yes, I too, would like to see what his can do in the far field. You might have to go somewhere there is less population, but the airport shouldn't be a problem as you will be using this along the horizontal axis.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
paul1598419 is online now   Reply With Quote
Old 06-03-2017, 10:37 PM #8
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

I also wanted to mention that the reason that the beam appears to expand as depicted in picture 2 is that the beam is at in incline, getting nearer to the camera after reflection off the mirror.. the beam was not actually getting wider to any degree that was visible to the eye in such a short distance.
__________________
If you take what I said, then put something better in there... that's what I should have said.
aaronnoraa is offline   Reply With Quote
Old 06-03-2017, 11:46 PM #9
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

I caught that. It wasn't a problem I was thinking of at all. Just would like to see what the BE can do in the far field.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
paul1598419 is online now   Reply With Quote
Old 06-04-2017, 12:22 AM #10
Ricker's Avatar
Class 2M Laser
 
Join Date: Oct 2015
Location: Bangor, Maine
Posts: 510
Rep Power: 15518
Ricker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond repute
Ricker Ricker is online now
Class 2M Laser
Ricker's Avatar
 
Join Date: Oct 2015
Location: Bangor, Maine
Posts: 510
Rep Power: 15518
Ricker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond reputeRicker has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Too awesome!! Keep up the good work, + rep!
__________________

Safety: Eagle PairŪ 190-540nm & 800-2000nm Laser Safety Goggles
Misc. Hardware:TENMA 35V/5A Variable Power Supply.
FLIR One Thermal Imaging Camera. Fluke 115 True RMS Digial Multimeter. And Much More!



->My Thermal Imaged Lasers Thread<-
->My First Build!<-
NEW! 2/18/16
Ricker is online now   Reply With Quote
Old 06-04-2017, 01:24 PM #11
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is offline
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Quote:
Originally Posted by paul1598419 View Post
Yes, I too, would like to see what his can do in the far field. You might have to go somewhere there is less population, but the airport shouldn't be a problem as you will be using this along the horizontal axis.
AIRPORT ?
Lasers and airports don't go together at all, I stick to my yard and the trees 180 degrees from the airport, a controller in an airport tower doesn't need to see any beams or intermittent flashes even coming his way so if you do point to a tree line make sure it's not even in the direction of any airports just to be safe.
__________________
You can not put freedom in a bag.
It is in fact an abstract concept.
Yet it is the single most valuable thing anyone has ever had.
RedCowboy is offline   Reply With Quote
Old 06-04-2017, 06:11 PM #12
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Since he is in Seattle, I assumed he was talking about the Boeing airport, which is not Seatac. I think he knows how to keep laser light from going near an airport just as I do. The warning was unnecessary and just overkill.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
paul1598419 is online now   Reply With Quote
Old 06-04-2017, 08:51 PM #13
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is offline
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

It's not just us " EXPERT " who read these post, no the majority of those here are visitors and I want everyone to understand it's a good idea to know where your airports are and to avoid any helicopters being dispatched to investigate flashes, just watch youtube videos of lasers many miles away and see how noticeable they can be at a great distance in the night sky.

I don't know the average height of an airport tower, but from the 20th floor of a downtown building I can see stone mountain and ribbons of highways for a long way.

These guys are looking across water 9 KM apart, but being elevated in a tower/building has the same effect.

__________________
You can not put freedom in a bag.
It is in fact an abstract concept.
Yet it is the single most valuable thing anyone has ever had.

Last edited by RedCowboy; 06-04-2017 at 08:52 PM.
RedCowboy is offline   Reply With Quote
Old 06-04-2017, 10:30 PM #14
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Yes, they can be quite visible at night, but usually only when pointed directly at someone or something. Your YouTube video shows that very well. If not pointed upwards or at anyone, it is difficult to see a laser even in darkness. Even low flying aircraft can't see lasers that aren't pointed at them. The problem you are describing only happens when someone is intentionally trying to disrupt aircraft. To use a laser with a BE at night to try to get an idea of it's divergence after expansion should cause no real problems if one is aware of his surroundings.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM

Last edited by paul1598419; 06-04-2017 at 10:31 PM.
paul1598419 is online now   Reply With Quote
Old 06-04-2017, 11:04 PM #15
RedCowboy's Avatar
Class 3B Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is offline
Class 3B Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 4,801
Rep Power: 37511
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

Quote:
Originally Posted by paul1598419 View Post
Since he is in Seattle, I assumed he was talking about the Boeing airport, which is not Seatac. I think he knows how to keep laser light from going near an airport just as I do. The warning was unnecessary and just overkill.
When giving advise about something that can land a person in prison it's best not to assume.

He said he lives near an airport.

Here are his exact words : I live near an airport so next time I remember when I'm heading out somewhere more accommodating I'll bring it along.

Just admit you gave bad advise and learn something, you can blame the Russians when you're alone, but don't give someone bad advise that could cause them serious trouble on an unfounded assumption.

There are municipal and private airports.
__________________
You can not put freedom in a bag.
It is in fact an abstract concept.
Yet it is the single most valuable thing anyone has ever had.

Last edited by RedCowboy; 06-04-2017 at 11:07 PM.
RedCowboy is offline   Reply With Quote
Old 06-04-2017, 11:48 PM #16
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,348
Rep Power: 48611
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: Video Projector Zoom/Focus Assembly as Beam Expander

You are quoting me in my response to your post, not his. I don't regret anything I said to aaronnorra. I only regret having to deal with you and your assumptions about me. It is getting to the point where I no longer feel like responding to you at all.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
paul1598419 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 05:38 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) 2017 Laser Pointer Forums, LLC