Inhomogeneous thermal analysis of microlayer mold for glass molding of fast-axis collimation lens array

Wang, Zifan; Zhou, Tianfeng; Yu, Qian; Zeng, Zihao; Wang, Xibin; Hu, Junjian; Zeng, Jiyong

doi:10.1016/j.optlaseng.2023.107935

Cited by 2 publications

(1 citation statement)

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“…Microlens array (MLA) is a highly integrated optical component composed of micron-sized lenses arranged in a regular pattern. It is characterized by compact structure, lightweight and small size. , The commonly seen MLAs include spherical, compound eye, − and cylindrical structures . In recent years, in response to the development demands of intelligent micro-optical systems, MLAs with tunable imaging capabilities, such as adjustable focal length and adjustable field of view, have also received widespread attention. , In the infrared atmospheric window, MLAs made of infrared transparent materials can significantly reduce pixel size and enhance the sensitivity of infrared optical systems .…”

Section: Introductionmentioning

confidence: 99%

Study on Deformation Behavior of Glass in High-temperature Molding for Massive Unit Microlens Arrays

Wang,

Zhou,

Sun

et al. 2024

ACS Appl. Mater. Interfaces

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Microlens arrays (MLAs) with a large number of units, known as massive unit microlens arrays (MUMLAs), are increasingly sought after for their ability to achieve high-power conversion in infrared optical systems. Precision glass molding (PGM) is considered the ideal manufacturing method for MUMLAs. However, the stress distribution and deformation behavior during molding lack detailed understanding, resulting in poor filling consistency and forming accuracy. Consequently, this leads to inconsistent diffuse spot size and irradiance in MUMLAs. This study aims to comprehensively analyze the glass filling behavior during the molding process of MUMLAs using both simulation and experimental approaches. It explains the impact of glass filling behavior and consistency on the optical performance of MUMLAs. Additionally, the effects of molding parameters on the filling consistency of the lenses are investigated. By optimizing these parameters, a high-consistency 128 × 128 MUMLA is fabricated.

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