Old 02-07-2017, 02:48 PM #1
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Rachel Rachel is offline
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Default Best focal point.

Can a basic glass magnifying glass combine 4 laser to one point safely? I don't want any deflection, reflection, refraction.

And tips on getting the best lense of high quality grade of glass magnifying ?


Rachel is offline   Reply With Quote








Old 02-07-2017, 02:57 PM #2
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Best focal point.

Quote:
Originally Posted by Rachel View Post
I don't want any deflection, reflection, refraction.

Well then it won't work, seeing as lenses work by refracting light. Not to mention all optics will reflect some of the light entering them...




But yes, in all seriousness ... it can be done, but maybe not the way you're thinking. What are you trying to achieve? How are you planning to go about it? I suggest you read about some basic optics terminology, maybe look at an online introduction to optics.

Safety is going to be up to you to implement...

Take a look at this, is this similar to what you want to achieve? https://www.youtube.com/watch?v=IzUoe-9bKa0
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2

Last edited by diachi; 02-07-2017 at 03:00 PM.
diachi is online now   Reply With Quote
Old 02-07-2017, 03:01 PM #3
Class 3R Laser
 
Join Date: May 2011
Posts: 1,934
Rep Power: 4770
Encap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond repute
Encap Encap is offline
Class 3R Laser
 
Join Date: May 2011
Posts: 1,934
Rep Power: 4770
Encap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond repute
Default Re: Best focal point.

Quote:
Originally Posted by diachi View Post
Well then it won't work, seeing as lenses work by refracting light. Not to mention all optics will reflect some of the light entering them...
What diachi says---you can't avoid all properties of optics and still use optics LOL

Quote:
Originally Posted by Rachel View Post
Can a basic glass magnifying glass combine 4 laser to one point safely? I don't want any deflection, reflection,refraction.
And tips on getting the best lense of high quality grade of glass magnifying ?
No. You can not combine the 4 laser beams. Lasers only work that way in imagination/an imaginary world. See: Reference Guide: How to Combine Lasers

The best you can do is focus all 4 individually onto a single focal point and that is the only point where there will be combined output power power at a single point or combine 2 at a time with PBS cubes reducing the number of beams to 2 then aiming them and focusing them a simgle focal point.

Last edited by Encap; 02-07-2017 at 04:09 PM.
Encap is offline   Reply With Quote
Old 02-07-2017, 03:11 PM #4
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Best focal point.

Quote:
Originally Posted by Encap View Post
The best you can do is focus all 4 individually onto a single focal point and that is the only point where there will be combined output power power at a single point.

I thought that's what OP was asking about...?

I agree OP - if you want to combine them into a single beam that's not the way to go about it.

You can focus them all to roughly the same spot with a lens, but even that isn't ideal. You'd get better results by combining and then focusing.
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2
diachi is online now   Reply With Quote
Old 02-07-2017, 03:23 PM #5
Class 3R Laser
 
Join Date: May 2011
Posts: 1,934
Rep Power: 4770
Encap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond repute
Encap Encap is offline
Class 3R Laser
 
Join Date: May 2011
Posts: 1,934
Rep Power: 4770
Encap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond repute
Default Re: Best focal point.

Quote:
Originally Posted by diachi View Post
I thought that's what OP was asking about...?

I agree OP - if you want to combine them into a single beam that's not the way to go about it.

You can focus them all to roughly the same spot with a lens, but even that isn't ideal. You'd get better results by combining and then focusing.
She did say "combine", and I didn't know if she meant beams or dots--could be either--so answered about combining beams and about focusing 4 individual dots on a single focal point.

She could use 2 PBS to reduce to 2 beams then a single PBS cube t get one beam and then focus that onto a single focal point.

Not sure what she wants to accomplish/do??

Last edited by Encap; 02-07-2017 at 03:27 PM.
Encap is offline   Reply With Quote
Old 02-07-2017, 03:37 PM #6
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Best focal point.

Quote:
Originally Posted by Encap View Post

She could use 2 PBS to reduce to 2 beams then a single PBS cube t get one beam and then focus that onto a single focal point.

No she couldn't, that isn't how PBS cubes work, the last PBS would split the two beams you've already combined back into individual beams and you'd be exactly where you started before the last PBS cube.
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2
diachi is online now   Reply With Quote
Old 02-07-2017, 03:44 PM #7
Class 3R Laser
 
Join Date: May 2011
Posts: 1,934
Rep Power: 4770
Encap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond repute
Encap Encap is offline
Class 3R Laser
 
Join Date: May 2011
Posts: 1,934
Rep Power: 4770
Encap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond reputeEncap has a reputation beyond repute
Default Re: Best focal point.

Quote:
Originally Posted by diachi View Post
No she couldn't, that isn't how PBS cubes work, the last PBS would split the two beams you've already combined back into individual beams and you'd be exactly where you started before the last PBS cube.
Oops you are 100% right---not thinking-brain fog -- am in the middle of 3 other things at the same time. lol

Best if she can say what it is she wants to accomplish. Whatever it is it is probably not as easily done in the real world as in imagination.

Last edited by Encap; 02-07-2017 at 03:48 PM.
Encap is offline   Reply With Quote
Old 02-07-2017, 03:52 PM #8
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Best focal point.

Quote:
Originally Posted by Encap View Post
Oops you are 100% right---not thinking-brain fog -- am in the middle of 3 other things at the same time. lol
No worries, I know how it goes!

Quote:
Originally Posted by Encap View Post
Best if she can say what it is she wants to accomplish. Whatever it is it is probably not as easily done in the real world as in imagination.
Agreed!
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2
diachi is online now   Reply With Quote
Old 02-07-2017, 04:08 PM #9
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Rachel Rachel is offline
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Default Re: Best focal point.

Hi all thanks you for ur quick to help

I want to achieve what Diachi linked me with styropyros 200W laser principle. Not 200W's though..

Will a normal household magnifying glass work? Or do I need something offline abit more purer grade. Thanks
Rachel is offline   Reply With Quote
Old 02-07-2017, 04:21 PM #10
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,114
Rep Power: 7161
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: Best focal point.

Quote:
Originally Posted by Rachel View Post
Hi all thanks you for ur quick to help

I want to achieve what Diachi linked me with styropyros 200W laser principle. Not 200W's though..

Will a normal household magnifying glass work? Or do I need something offline abit more purer grade. Thanks

Why are you trying to do this? Do you just want to burn things?
__________________


445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | For Review Awaiting arrival
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2
diachi is online now   Reply With Quote
Old 02-07-2017, 04:45 PM #11
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Rachel Rachel is offline
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Default Re: Best focal point.

Quote:
Originally Posted by diachi View Post
Why are you trying to do this? Do you just want to burn things?
Yea, just burning things
Rachel is offline   Reply With Quote
Old 02-08-2017, 11:49 AM #12
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Rachel Rachel is offline
Member
 
Join Date: Dec 2016
Posts: 46
Rep Power: 0
Rachel is on a distinguished road
Default Re: Best focal point.

Any help still ??
Rachel 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








Top 50 Laser Pointer Companies - Green Lasers Top 50 Laser Pointer Companies - Blue Lasers Top 50 Laser Pointer Companies - Red Lasers
Top 50 Laser Pointer Companies - Yellow Lasers Top 50 Laser Pointer Companies - Purple Lasers Top 50 Laser Pointer Companies - Orange Lasers
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 04:14 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