Wide angle camera in multi-channel architecture using microlenses on a curved surface
Date Issued
2013
Date
2013
Author(s)
Shen, Hui-Kai
Abstract
In this paper, we proposed a multi-channel imaging system, which combines the principles of the insect compound eye and the human eye. The optical system enables the reduction of track length of the imaging device to achieve miniaturization. With the aid of optical engineering software ZEMAX, the multi-channel structure is simulated by a curved microlens array (MLA), and we used a Hypergon lens as the main lens to simulate the human eye, which can achieve the purpose of the wide field of view (FOV). With this architecture, each microlens of a MLA transmits a segment of the overall FOV. The partial images that are separately recorded in different channels are stitched together to form the final image of the whole FOV by software processing.
This design is 2.70 mm thick, with 59 channels and 102˚× 90˚ FOV is optimized using ZEMAX ray tracing software on a 5.63 mm × 3.69 mm image plane. Given recent progress in the fabrication of microlenses, this image system has potentials to be commercialized.
Due to the microlenses are realized by state-of-the-art micro-optical fabrication techniques on a wafer level that are suitable for application in mobile phone camera in the future. Finally, we will discuss the simulation results of this system and compare with a mobile phone patent.
Subjects
微透鏡
人眼
複眼
手機鏡頭
廣視角
Type
thesis
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