Analysis and calculation of the fill factor for microlens array scanning systems

被引：7
作者：
Ge, Zenghui [1 ]
Huang, Yunhan [1 ]
Liu, Zhiying [1 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Optoelect Engn, Minist Educ, Key Lab Optoelect Measurement & Opt Informat Tran, Changchun 130022, Peoples R China
来源：
APPLIED OPTICS | 2021年 / 60卷 / 36期
基金：
中国国家自然科学基金;
关键词：
BEAM; DESIGN;
D O I：
10.1364/AO.443776
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Microlens array (MLA) scanning systems are used in numerous applications, such as laser radar and optical communications. Excrescent light generated by overlapping divergent beams from adjacent microlenses increases with scanning angle, thereby reducing the relative aperture and affecting the MLA system resolution. The fill factor is hence proposed to characterize the relative aperture, and its effects on the modulation transfer function are analyzed. The fill factor is calculated from matrix optics paraxial ray tracing using the system parameters. The simulated results of the MLA system and theoretical calculations are in good agreement. This work can benefit the design and evaluation of MLA systems. (C) 2021 Optica Publishing Group
引用
收藏
页码：11235 / 11240
页数：6
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