Song, Weitao <br/><br/>
Free-form illumination of a refractive surface using multiple-faceted refractors.  [electronic resource] 

 -  Applied optics  Oct 2015 
 - E1-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1539-4522 
<br/><br/><label>Standard No.: </label>10.1364/AO.54.0000E1  doi