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23 August 2017 Fabrication of multi-focal microlens array on curved surface for wide-angle camera module
Jun-Gu Pan, Guo-Dung J. Su
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Proceedings Volume 10375, Current Developments in Lens Design and Optical Engineering XVIII; 103750H (2017) https://doi.org/10.1117/12.2272121
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States
Abstract
In this paper, we present a wide-angle and compact camera module that consists of microlens array with different focal lengths on curved surface. The design integrates the principle of an insect’s compound eye and the human eye. It contains a curved hexagonal microlens array and a spherical lens. Compared with normal mobile phone cameras which usually need no less than four lenses, but our proposed system only uses one lens. Furthermore, the thickness of our proposed system is only 2.08 mm and diagonal full field of view is about 100 degrees. In order to make the critical microlens array, we used the inkjet printing to control the surface shape of each microlens for achieving different focal lengths and use replication method to form curved hexagonal microlens array.
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Jun-Gu Pan and Guo-Dung J. Su "Fabrication of multi-focal microlens array on curved surface for wide-angle camera module", Proc. SPIE 10375, Current Developments in Lens Design and Optical Engineering XVIII, 103750H (23 August 2017); https://doi.org/10.1117/12.2272121
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KEYWORDS
Microlens array
Inkjet technology
Microlens
Printing
Cameras
Eye
Imaging systems
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