Design of zoom homogenizer to control size of illumination field

Taeshin Kim
2018 Optical Engineering: The Journal of SPIE  
We proposed a zoom homogenizer that can control the size of the illumination field by adding one lens array to the conventional imaging-type beam homogenizer. An equivalent lens system was used to derive the imaging condition and size of the illumination field. The result of the ray-tracing simulation shows the validity of the zoom homogenizer to generate the uniform and sharp-edged beam. We presented the strengths and weaknesses of the zoom homogenizer in terms of its etendue with the maximum
more » ... cceptance angle of the system. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
doi:10.1117/1.oe.57.3.035102 fatcat:6fs7yp47fjcrpetpklvpojry64