Old 03-14-2015, 03:45 PM #1
Junior Member
 
Join Date: Mar 2015
Posts: 1
Rep Power: 0
Acrobat is on a distinguished road
Acrobat Acrobat is offline
Junior Member
 
Join Date: Mar 2015
Posts: 1
Rep Power: 0
Acrobat is on a distinguished road
Default Straight wide beam

Because it would be too difficult to define my question in words (well, I don't know what I should ask or search for) I've attached a picture of what I want to do.

http://www.mediafire.com/view/q8vfdx...680/Linser.PNG

Is there any manufactured device/module to buy that will do this (that doesn't cost to much) or if I need to build this what do I need and where could I find the things needed?



Last edited by Acrobat; 03-14-2015 at 03:48 PM. Reason: Link/image was missing
Acrobat is offline   Reply With Quote


















Old 03-15-2015, 02:46 AM #2
marcuspeh's Avatar
Class 2M Laser
 
Join Date: Nov 2014
Posts: 663
Rep Power: 15436
marcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond repute
marcuspeh marcuspeh is online now
Class 2M Laser
marcuspeh's Avatar
 
Join Date: Nov 2014
Posts: 663
Rep Power: 15436
marcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond repute
Default Re: Straight wide beam

Beam expender will make a beam like that, if I'm right.


Last edited by marcuspeh; 03-15-2015 at 02:50 AM.
marcuspeh is online now   Reply With Quote
Old 03-15-2015, 02:52 AM #3
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 9,075
Rep Power: 783202
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: 9,075
Rep Power: 783202
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: Straight wide beam

Quote:
Originally Posted by marcuspeh View Post
Beam expender will make a beam like that, if I'm right.

A regular beam expander won't work, you would need to use at least one cylindrical lens as you only need to collimate one axis - the other is already collimated.

See here: Beam Shaping with Cylindrical Lenses
__________________


405nm | Banggood LT-850 | 50mW Metered | Review Unit | >>Review<<
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1.6W Metered | Review Unit | >>Review<<
473nm | B&W Tek BWB-10-OEM |
488nm | Spectra Physics 163 Argon | ~30mW Metered |
495nm | Laser66 Pen Build | WIP
515nm | PL515 Pen Build | 50mW | >>Build Thread<<
520nm | Laserlands 520 5mW | 3mW Metered | Review Unit | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered |
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2


B&W Tek Spectrometer
LaserBee 2.5W USB LPM


Check out my Reddit Subreddit! >>/r/laserpointers<<


Last edited by diachi; 03-15-2015 at 02:53 AM.
diachi is online now   Reply With Quote
Old 03-15-2015, 05:19 AM #4
Alaskan's Avatar
Super Moderator
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,257
Rep Power: 1157360
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
Super Moderator
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,257
Rep Power: 1157360
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: Straight wide beam

This is something I've wanted to do, find the way to produce the thinnest line possible so as to have the least divergence in the plane opposite to the line. Recently, I talked to an optical engineer, or perhaps student, working for Edmond Optics and they suggested the thing to do is start out with the tightest divergence laser you can and then shoot the collimated beam through a line generating cylinder. I don't know there is anything more which can be done to produce an ultra thin line with minimum divergence of the line in the opposite plane. If anyone knows, please contact me.

Edit: Here's a link for Acrobat: http://www.ebay.com/itm/5pcs-110-120...-/131035107702 - This is a link to an ebay store, careful if you buy a laser from this seller, more often than not, they specify their output power at twice what they really are, as is common from many China sellers, they get away with it too much because most hobbyist buyers do not have laser power meters, but I have three all the way up to 300 watts and check everything I buy.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


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

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

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

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

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

YAG Power Calc. Laser Peak Power Calculator - Ophir

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

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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

Last edited by Alaskan; 03-15-2015 at 08:23 PM. Reason: took a sentence out
Alaskan 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

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 05:53 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC