div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: University of Technology IraqL2 This beam expandercollimator often is called the Keplerian beam expander It and the one shown in Figure 4b have names derived from alleaed inventors src=https:reader033fdocumentsinreader033viewer202206081660954b35b3c95349e0368985html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: University of Technology IraqL2 This beam expandercollimator often is called the Keplerian beam expander It and the one shown in Figure 4b have names derived from alleaed inventors src=https:reader033fdocumentsinreader033viewer202206081660954b35b3c95349e0368985html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: University of Technology IraqL2 This beam expandercollimator often is called the Keplerian beam expander It and the one shown in Figure 4b have names derived from alleaed inventors src=https:reader033fdocumentsinreader033viewer202206081660954b35b3c95349e0368985html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: University of Technology IraqL2 This beam expandercollimator often is called the Keplerian beam expander It and the one shown in Figure 4b have names derived from alleaed inventors src=https:reader033fdocumentsinreader033viewer202206081660954b35b3c95349e0368985html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv