Apposition compound-eye image scanner by glass plate optics

We propose a design approach for a thin image scanner using the concept of an apposition compound eye comprising many imaging units that take only one pixel image. Although light shielding between adjacent imaging units is always one of the main issues for an artificial compound eye, a simple plane...

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Bibliographic Details
Published in:Applied optics (2004) 2022-08, Vol.61 (24), p.7010
Main Authors: Kawano, Hiroyuki, Nakagawa, Naoki, Takushima, Shigeru, Makita, Taisuke, Kurihara, Kohei, Sugano, Miki
Format: Article
Language:English
Subjects:
Glass plates
Microlenses
Scanners
Shielding
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Summary:We propose a design approach for a thin image scanner using the concept of an apposition compound eye comprising many imaging units that take only one pixel image. Although light shielding between adjacent imaging units is always one of the main issues for an artificial compound eye, a simple plane structure using three aperture array layers on two glued glass plates prevents such stray light. Our prototyped scanner, with only 6.8-mm thickness as a packaged module, has 632 microlenses with 200-dpi resolution, resulting in a field of view of 80 mm. The evaluated images show no ghost images.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.465537