An ultracompact optical imaging system allowing various magnifications or demagnifications and based on microlenslet arrays is presented for the first time to our knowledge. This research generalizes recent findings regarding microlenslet-array-based 1:1 relay systems [Appl. Opt. <b>42</b>, 6838 (2003)]. Through optical ray tracing, the feasibility of magnifying gray-scale images through a stack of two dissimilar microlenslet arrays is demonstrated for the first time to our knowledge. Results presented specifically demonstrate that a compact imaging system operating at a magnification of 2 is feasible with an overall length of ~9mm . Optical aberrations of the most basic configuration are evaluated, and optimization is discussed.
© 2004 Optical Society of America
(110.2960) Imaging systems : Image analysis
(220.4830) Optical design and fabrication : Systems design
(350.3950) Other areas of optics : Micro-optics
(350.5730) Other areas of optics : Resolution
Vesselin Shaoulov, Ricardo Martins, and Jannick P. Rolland, "Compact microlenslet-array-based magnifier," Opt. Lett. 29, 709-711 (2004)