Holographic beam shaper

 

Ever wondered why your holograms are brighter in the center and dimmer at edges? – Well that happens because your laser beam shape is Gaussian and photoplate is not illuminated evenly.

 

 

 Picture 1: Gaussian laser beam distribution that you probably have in your setup

 

Picture 2: Top-hat laser beam distribution that you will have after purchasing Geola Beam Shaper kit

 

There are plenty solutions for laser beam shaping, but only ours is specifically designed for holography. All you need is Geola’s Beam Shaper (750eur) and three lenses that you probably already have in your workshop, or we will be glad to supply you lenses as well – complete kit containing Geola’s Beam Shaper and three lenses will cost you only 850eur and your holograms will always have even brightness.

On the picture is shown beam-shaping optical setup and in the table are shown Telescope’s lenses optical powers for various laser beam diameters. Third lens defines the divergence of shaped laser beam, so if you will order complete kit from Geola, please specify the divergence needed.
 

  

Picture 3: Optical scheme

 
 
 Laser beam diameterOptical power of negative lens (Dpt) Optical power of positive lens (Dpt)
0.5-10
0.91
1-5
0.83
1.5 -3.3
0.77
2 -2.5
0.71
2.5
-2 0.67
3
-1.7
0.63
3.5
-1.4
0.59
4-1.25 
0.56
 

© Geola Digital uab. Reproduction is illegal without prior agreement.
 
 We cooperate with Vilnius Gediminas University
 
 
2011.01 - 2011.05

i-Lumogram prices

0,29 EUR/square centimeter

 

 

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