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Old Nov 10th 2016, 12:31 AM   #1
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Join Date: Nov 2016
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Beam reducer

Hi,

i am sorry for my english. i would like to ask you how to calculate the angle gamma for beam reducer by following link:

https://spie.org/publications/tt48_3...beam_expanders

There is beam expander. I want to calculate the same example for beam reducer. How the formula in link will be changed?
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