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  Duma Optronics February 2016 Newsletter
¤ýÀÛ¼ºÀÚ: ÀüÀçÇÊ ¤ýÀÛ¼ºÀÏ: 2016-02-04 (¸ñ) 09:39 ¤ýÁ¶È¸: 563
Duma Optronics will present a few new instruments:
 
M©÷ HP Beam Analysis A new system for High Power laser measurement on line for both focused and collimated beams, based on the multi-axis knife edge scanning laser beam profiler 
BeamOn U3 - A new system that combines a USB3.0 Device with a beam profiler and a built-in automatic filter wheel
Laser Analyzing Autocollimator Precise USB2.0 device combining the functionality of autocollimator and alignment telescope with laser beam profiling capability


Also on display- selected items from the positioning and alignment product lines:
SpotOn Mobile System and our AlignMeter System.



BeamOn U3

Duma Optronics is proud to launch the first combination of a large scale Beam Profiler (1/1.2 inch) combining USB 3.0 with a dedicated built-in automatic filter wheel. 

This new Beam Profiler has a brand new software including accurate power measurements and powerful new algorithms for data analysis.

The new system will be offered in two basic architertures: One with 40 fps and the second up to 150 fps. The high pixel density allows flexible measurements from small beam to large beam. Furthermore, the calculations are compliant with 11146.

Learn More:
http://www.duma.co.il/new-products/beamon-u3.html

 

Application Note

Divergence Measurement
 
Technique
 
To measure beam divergence, we use a technique that involves measuring the beam diameter at the ideal focal point of an imaging lens.
The ideal focal point of a lens is defined as the point in space where the focus would be if the beam entering the lens was perfectly collimated. This point is also known in optics as the paraxial back focal point. This point is located exactly at a distance Fb from the vertex of the lens. Since all laser beams diverge, the actual focus is located farther from the lens than the ideal focal length. For this application we are concerned only with the ideal focus and not with the actual focus. Once the beam diameter at the ideal focus is known, the beam divergence may be calculated using a simple formula.

Selection of an Imaging Lens:

The BeamOn Profiler imaging lens will have a back focal length of (Fb) millimeters, as measured from the vertex of the output surface. The BeamOn Profiler detector surface will be located exactly at the lens back focal length for the laser wavelength, regardless of whether there is actually a waist (focus) at that point. It is important that two conditions are met by the lens:
1. The working f-number, defined as the lens focal length divided by the beam diameter at the lens should be least 10, and preferably over 20. If the f-number is less than 10, aberration corrected optics must be used.
2. The lens should be selected such that the beam image on the BeamOn Profiler is as large as possible without overfilling. Overfilling the BeamOn Profiler will result in false diameter readings. Underfilling the BeamOn Profiler will result in a loss of image resolution. A good rule of thumb is to have the BeamOn Profiler approximately ¨ö to ¨ø filled.


Learn More:
http://www.duma.co.il/images/application/Divergence_Measurement_-Application_Note.pdf
Software updates
Duma's software engineers continually improve our software, if you encounter any problems, please write to support@duma.co.il  for the latest version download.
Please include product name, s/n and software version, all can be found at Help/About, also specify the computers operating system.
Featured Video
Straightness measurement.
See one of the many applications for Duma Optronics' Electronic Autocollimator system.



 
Featured Article
Metrology System for Inter-Alignment of Lasers, Telescopes, and Mechanical Datum. 
By Oren Aharon, Duma Optronics CTO
Co-author Itay Vishnia, PLX
The article was presented at the SPIE Optifab convention on October 14, 2015 in the section of Metrology.


http://www.duma.co.il/images/SPIE_Optifab_10.5.15.pdf

 

New Products:

 
- Laser Analyzing Electronic Autocollimator
Precise USB2.0 device combining the functionality of autocollimator and alignment telescope with laser beam profiling capability

 

Learn More:
http://www.duma.co.il/laser-analyzing-electronic-autocollimator-main.html
 

- M©÷ HP Beam Analysis

A new system for High Power laser measurement on line for both focused and collimated beams, based on the multi-axis knife edge scanning laser beam profiler

Learn More:
http://duma.co.il/new-products/m-hp-beam-analysis.html
 

 
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