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25 November 2009 An optical design of partitioning the lens surface area
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Abstract
In this research we suggest partitioning the lens surface area of an optical design to decrease the field curvature and astigmatism while satisfying the miniaturization demand of a camera module carried by a cellular phone. We compensate for the field curvature corrected by the imaging lens and / or the astigmatism of an optics element, and we partition the lens surface to establish a difference in shape between the center domain of the lens and the surrounding domain of the lens. The center domain and the surrounding domain of the lens is each decided by shape to compensate for the field curvature and astigmatism individually. Based on the above-mentioned procedure, this presentation suggests means to raise the optical performance while satisfying the miniaturization of a camera module carried by a cellular phone.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Norihisa Sakagami and Kouei Hatade "An optical design of partitioning the lens surface area", Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 75060D (25 November 2009); https://doi.org/10.1117/12.838099
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