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 > 445nm Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 09-02-2011, 08:08 PM #1
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Leoprix Leoprix is offline
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Default Long distance burning - Question

Hi all,
I'm going to build my first 1,5/2 W 445 nm diode laser using a 1w diode and FlexDrive V5. I would like to understand if it will be possible to install lenses to reach burning capability up to 60/80 feet. What is the best lens assembly to adjust focus up to that long distance?
Thanks for help!
Leonardo



Last edited by Leoprix; 09-05-2011 at 06:57 AM.
Leoprix is offline   Reply With Quote







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







Old 09-02-2011, 08:30 PM #2
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Long distance burning - Question

no... the diode is multimode and has bad diveregence. if you must burn at that distance a 12x blu ray is pretty much your only option in a hand held. or you can get a really high powered green dpss lab style.

michael.
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 09-02-2011, 09:54 PM #3
Burnsy's Avatar
Class 1M Laser
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Burnsy Burnsy is offline
Class 1M Laser
Burnsy's Avatar
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Default Re: Long distance burning - Question

Yea... what Chip said:

With a 12x diode (405nm) you can achieve the best results in burning at dinstance compared to the price.
Of course a 1W Green with a beam expander x10 will do better but price is a lot higher.
Im able to burn with my 405 Laser at about 5 meters away. It has got very good divergence that means I could pop a ballon even at 10 meters away (didn't try it yet ^^)
__________________
- Pics of my avatar *link*-

655nm 195mW O-like Dilda
635nm 45mW Sanyo Micro
594nm 2.5mW Laserglow Rigel
532nm 607mW O-like
532nm 77mW Rayfoss
532nm 85mW DL Viper
473nm 104mW DL Spartan - Review link
445nm 1.6W Ehgemus/DTR - link
445nm 268mW Ehgemus
405nm 200mW Beamq *broken - scam* - link
405nm 620mW 12x Chrome Pocket - link

Peak powers of my lasers measured by USB Laserbee 2.5W
Burnsy is offline   Reply With Quote
Old 09-02-2011, 11:42 PM #4
DeathOfAllThings's Avatar
Junior Member
 
Join Date: Aug 2007
Posts: 27
Rep Power: 0
DeathOfAllThings is a jewel in the roughDeathOfAllThings is a jewel in the roughDeathOfAllThings is a jewel in the rough
DeathOfAllThings DeathOfAllThings is offline
Junior Member
DeathOfAllThings's Avatar
 
Join Date: Aug 2007
Posts: 27
Rep Power: 0
DeathOfAllThings is a jewel in the roughDeathOfAllThings is a jewel in the roughDeathOfAllThings is a jewel in the rough
Default Re: Long distance burning - Question

What's the output of the 12x blueray and what kind of voltage/current do you put through it for that? Trying to decide what laser I'd like to build next.
DeathOfAllThings is offline   Reply With Quote
Old 09-03-2011, 01:26 AM #5
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Long distance burning - Question

Noy sure on the voltage. Up to 6vdc but the correct driver batterry combo covers that. As to current... 550 is dangerous max for diode. And 500ma is the norm
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 09-03-2011, 01:43 AM #6
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 4354
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 4354
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: Long distance burning - Question

Quote:
Originally Posted by DeathOfAllThings View Post
What's the output of the 12x blueray and what kind of voltage/current do you put through it for that? Trying to decide what laser I'd like to build next.

The V5 Flex will take care of the voltage for you. Typically it is ~6V.
RA_pierce is online now   Reply With Quote
Old 09-03-2011, 06:34 AM #7
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Leoprix Leoprix is offline
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Default Re: Long distance burning - Question

Thanks for suggest. So I need a 12x instead of the Casio A140 diode. The V5 flex could be the driver, but what about the best lens to focus the beam at 20/30 meters away?
Leonardo
Leoprix is offline   Reply With Quote
Old 09-03-2011, 07:18 AM #8
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Leoprix Leoprix is offline
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Default Re: Long distance burning - Question

As best alternative, you suggest a green DPSS Lab laser. I found some on ebay. But I have no experience to evaluate all tech characteristics to evaluate how much it will be suitable for long distance burning (Divergence? Exit beam dimension? Adjustable lens? Output power?). For example:
A 300 mW like this:
300mw 532nm DPSS Green Lab Laser Module With TTL | eBay
Or this 500 mW (but for light show): 500mw 532nm DPSS Green laser Diode/Module for lightshow | eBay
Or this (more expensive) 400 mW: 400mw+ 532nm Green DPSS Laser Output Over 550mw! TTL | eBay

Or others?
Thanks for help!
Leonardo
Leoprix is offline   Reply With Quote
Old 09-03-2011, 12:53 PM #9
Arayan's Avatar
Class 3R Laser
 
Join Date: Oct 2009
Location: Italy
Posts: 1,747
Rep Power: 244
Arayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond repute
Arayan Arayan is offline
Class 3R Laser
Arayan's Avatar
 
Join Date: Oct 2009
Location: Italy
Posts: 1,747
Rep Power: 244
Arayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond repute
Default

you can calculate the "burning power" at a fixed distance by the following formula:

BP=power/(π(beam diameter-beam divergence*distance)^2)/2
__________________
My Lasers
80 mW, 405 nm Elitelasers
5 mW, 405 nm Elitelasers
2.5W, 445 nm by Yobresal
Worlds most powerful handheld 4.9W 445nm by ARGLaser Link
>80 mW, 473 nm CNI-style handheld laser SOLD
160 mW, 532 nm, Optotronics pen SOLD
Focusable 150 mW, 532 nm
5 mW, 532 nm, Laserglow Anser
2 mW, 594 nm, Laserglow Rigel-2 SOLD
380 mW, 635 nm, the Copperhead by Wolfman Link
170 mW, 650 nm from jeffreythe00 Link
double beam pointer <5 mW, 650 nm ; 532 nm, Z-Bolt
<400 mW (220 mW) 808 nm Armlaser
KW-range 1064 nm pulsed YAG laser "gun" from AnselmoFanZero Link
40W, 10600 nm DIY CO2 laser Link
Safety glasses for each wavelength described above



Trust me, I'm a biologist!!
Arayan is offline   Reply With Quote
Old 09-03-2011, 01:03 PM #10
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Leoprix Leoprix is offline
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Default Re: Long distance burning - Question

Thanks Arayan,
but "n" ...what is?
I can suppose that the "burning power" will depend also on how much the beam is focused. So I suppose that the "divergence" (calulated from the source) will depend on the focusing lens system setting. If the beam is focused near the laser, I think I will have big divergence, but if I can adjust the focus to have a very small dot at 60 feet, I will have small divergence. May be I am wrong. Sorry, but I have not too much experience. Thanks.
Leoprix is offline   Reply With Quote
Old 09-03-2011, 01:19 PM #11
Arayan's Avatar
Class 3R Laser
 
Join Date: Oct 2009
Location: Italy
Posts: 1,747
Rep Power: 244
Arayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond repute
Arayan Arayan is offline
Class 3R Laser
Arayan's Avatar
 
Join Date: Oct 2009
Location: Italy
Posts: 1,747
Rep Power: 244
Arayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond reputeArayan has a reputation beyond repute
Default Re: Long distance burning - Question

I'm sorry it isn't "n" but Pi... it's very difficult to write using an iPod

... yes the focus is important but the formula is for a beam of a coherent light without optics. To obtain a best divergence you can use a beam expander.
__________________
My Lasers
80 mW, 405 nm Elitelasers
5 mW, 405 nm Elitelasers
2.5W, 445 nm by Yobresal
Worlds most powerful handheld 4.9W 445nm by ARGLaser Link
>80 mW, 473 nm CNI-style handheld laser SOLD
160 mW, 532 nm, Optotronics pen SOLD
Focusable 150 mW, 532 nm
5 mW, 532 nm, Laserglow Anser
2 mW, 594 nm, Laserglow Rigel-2 SOLD
380 mW, 635 nm, the Copperhead by Wolfman Link
170 mW, 650 nm from jeffreythe00 Link
double beam pointer <5 mW, 650 nm ; 532 nm, Z-Bolt
<400 mW (220 mW) 808 nm Armlaser
KW-range 1064 nm pulsed YAG laser "gun" from AnselmoFanZero Link
40W, 10600 nm DIY CO2 laser Link
Safety glasses for each wavelength described above



Trust me, I'm a biologist!!
Arayan is offline   Reply With Quote
Old 09-03-2011, 02:07 PM #12
Member
 
Join Date: Jul 2011
Posts: 37
Rep Power: 0
JuniorSG123 is on a distinguished road
JuniorSG123 JuniorSG123 is offline
Member
 
Join Date: Jul 2011
Posts: 37
Rep Power: 0
JuniorSG123 is on a distinguished road
Default Re: Long distance burning - Question

this thread caught my attention especially the reply from Burnsy.
may i ask what is he highest power 405nm in the market now?

thanks a million
JuniorSG123 is offline   Reply With Quote
Old 09-03-2011, 03:14 PM #13
Burnsy's Avatar
Class 1M Laser
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Burnsy Burnsy is offline
Class 1M Laser
Burnsy's Avatar
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Default Re: Long distance burning - Question

I don't think you can buy very high powered blurays.

But check this out =)

FREAK 12x 405nm Diode. 1W "1000mW" <<< "Yes you Read it Right" :D


So you should be able to get a >600mW 405nm custom built laser from some members here.
Using a G1 Lense or a LarryDFW Lense will be about 15% more power compared to the Aixiz405 glass lense but about 50$ more expensive.
I'm not sure which lens gives the best dot in the distance though.
__________________
- Pics of my avatar *link*-

655nm 195mW O-like Dilda
635nm 45mW Sanyo Micro
594nm 2.5mW Laserglow Rigel
532nm 607mW O-like
532nm 77mW Rayfoss
532nm 85mW DL Viper
473nm 104mW DL Spartan - Review link
445nm 1.6W Ehgemus/DTR - link
445nm 268mW Ehgemus
405nm 200mW Beamq *broken - scam* - link
405nm 620mW 12x Chrome Pocket - link

Peak powers of my lasers measured by USB Laserbee 2.5W
Burnsy is offline   Reply With Quote
Old 09-03-2011, 03:53 PM #14
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Long distance burning - Question

A 1watt 405 is not the norm. About 700mw is. And thats a burning monster. Especially since blurays have such good beam quality.

At leo.... Please delete the name of the company you posted. The are a pain in the ass and give the admin hell.
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 09-03-2011, 06:58 PM #15
DrSid's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
DrSid DrSid is offline
Class 3R Laser
DrSid's Avatar
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
Default Re: Long distance burning - Question

Bigger lens will lower the divergence. 1W 445nm has bad beam shape, that's true. But if you can make it burn at 2m with 5mm lens, you will achieve generally the same dot at 20m with 50mm lens. Actually during my experiments with large aperture lens it seemed that the beam profile is better with bigger lens.
Because of angle at which the beam leaves the diode can, photographic lens can be used pretty effectively. You need lens as simple as possible, because every air/glass transition will eat some power. So generally no zoom lens.
I tried simple 50mm (focal length), and also 500mm (about 90mm diameter) mirror long range lens, both worked rather well. Except I did not use it with my high power laser, only at about 200mW, and the alignment was pretty bad, so it did no burn at all. But the dot looked rather good. I still plan to hook it to my 1.5W ..
Btw. you better use something you don't intend using on camera anymore .. the laser can damage it. And I'm not just talking about plastic cases, which are so popular these days in photographic lens design. Laser can for example vaporize some grease inside the lens, which would be pretty hard to clean.
__________________
200mw (35mw compared) FocalPrice cheap green AA - Review
500mw (estimated) 445nm Minimalistic Orange Emos Direct Drive. Thread
1500mw (estimated) 445nm Jayrob's Solarforce L2P. Review

Last edited by DrSid; 09-03-2011 at 07:01 PM.
DrSid is offline   Reply With Quote
Old 09-04-2011, 08:13 PM #16
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Leoprix Leoprix is offline
Junior Member
 
Join Date: Sep 2011
Posts: 11
Rep Power: 0
Leoprix is just really niceLeoprix is just really niceLeoprix is just really niceLeoprix is just really nice
Default Re: Long distance burning - Question

Yes, DrSid.
This is exactly what I mean. If I can have very good burning beam for a 2W 445 nm laser at 1 m distance, I can reach more or less the same dot (so the same burning energy) also at 20 or 30 m distance, obviously with a suitable lens. Could you tell me when you will have test your 1,5 W with a standard 50 mm relfex lens? I have two old glass 50 mm lens for relfex and I am courios to know.
Thanks.
Leonardo
Leoprix is offline   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 05:13 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