Optical analysis of miniature lenses with curved imaging surfaces

Miniature cameras for consumer electronics and mobile phones have been, and continue to be, in fast development. The system level requirements, such as manufacturing cost, packaging, and sensor characteristics, impose unique challenges for optical designers. In this paper, we discuss the potential o...

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Bibliographic Details
Published in:Applied optics (2004) 2015-10, Vol.54 (28), p.E216-E223
Main Authors: Reshidko, Dmitry, Sasian, Jose
Format: Article
Language:English
Subjects:
Curved
Flats
Image quality
Imaging
Lenses
Miniature
Packaging
Sensors
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Summary:Miniature cameras for consumer electronics and mobile phones have been, and continue to be, in fast development. The system level requirements, such as manufacturing cost, packaging, and sensor characteristics, impose unique challenges for optical designers. In this paper, we discuss the potential optical benefits of having a curved image surface rather than a flat one. We show that curved sensor technology allows for optically faster lens solutions. We discuss trade-offs of several relevant characteristics, such as packaging, chief ray angle, image quality, and tolerance sensitivity. A comparison of a benchmark flat field lens, and an evaluation design imaging on a curved surface and working at f/1.6, provides useful specific insights. For a given image quality, departing from a flat imaging surface does not allow significantly reducing the total length of a lens.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.54.00E216