
Proceedings Paper
Array projection optics: multi-channel design for ultra slim projectorsFormat | Member Price | Non-Member Price |
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Paper Abstract
Common projection optics use a single aperture approach to create a magnified image on a screen. The transmitted flux
of such systems always scales with their system dimensions thus preventing the realization of ultra compact devices
along with a high lumen output. We introduce a new multi-channel approach that breaks this rule and enables the
realization of ultra slim, laterally extended projection devices with high flux and integrated homogenization. Array
projection optics consists of a regular two-dimensional arrangement of projective microlenses superposing their images
on the screen. First we derive the scaling laws of such a multi-channel projector in contrast to common single aperture
optics and analyze the system parameters of a single projection channel by Seidel aberration theory. Based on the
application of these results to a variable array size the array projection optics are specified. The technological realization
of a sample system with still image projection is shown and characterized with respect to modulation transfer and flux.
Paper Details
Date Published: 13 May 2010
PDF: 10 pages
Proc. SPIE 7716, Micro-Optics 2010, 77161A (13 May 2010); doi: 10.1117/12.854457
Published in SPIE Proceedings Vol. 7716:
Micro-Optics 2010
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Hans Zappe, Editor(s)
PDF: 10 pages
Proc. SPIE 7716, Micro-Optics 2010, 77161A (13 May 2010); doi: 10.1117/12.854457
Show Author Affiliations
Marcel Sieler, Fraunhofer-Institute for Applied Optics and Precision Engineering (Germany)
Peter Schreiber, Fraunhofer-Institute for Applied Optics and Precision Engineering (Germany)
Peter Schreiber, Fraunhofer-Institute for Applied Optics and Precision Engineering (Germany)
Peter Dannberg, Fraunhofer-Institute for Applied Optics and Precision Engineering (Germany)
Andreas Bräuer, Fraunhofer-Institute for Applied Optics and Precision Engineering (Germany)
Andreas Bräuer, Fraunhofer-Institute for Applied Optics and Precision Engineering (Germany)
Published in SPIE Proceedings Vol. 7716:
Micro-Optics 2010
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Hans Zappe, Editor(s)
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