A Novel Fabrication Method for Mold Insert of Injection Molded Microlens Array

Yung Kang Shen

doi:10.4028/www.scientific.net/MSF.532-533.665

Paper Titles

Damage Analysis of Particulate Polymer Composites Based Structure by Using Micro-Meso-Macro Finite Element Approach
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Design and Production of Wind Tunnel Testing Models with Selective Laser Sintering Technology Using Glass-Reinforced Nylon
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Diode Laser Modification of Surface Gradient Layer Properties of a Hot-Work Tool Steel
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High-Quality NC-Data Generation in Mold and Die Manufacturing
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A Novel Fabrication Method for Mold Insert of Injection Molded Microlens Array
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The Solving Methods of Dwell Time or Pressure in CCOS for Optical Complex Surfaces
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Study on the Tool Path Generation of an Automotive Headlamp Reflector in Ultra-Precision Raster Milling
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Synthesis and Analysis of 4-DOF Parallel Manipulator with Passive Subchain
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Temperature and Humidity Effects on Micro/Nano Handling
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A Novel Fabrication Method for Mold Insert of Injection Molded Microlens Array

Abstract:

This paper reports a simple and novel procedure for mold insert of microlens array. The micro injection molding (MIM) and micro injection-compression molding (MICM) are used to replicate the microlens array. The 200×200 arrays of molded microlens, with a diameter of 150 $m, a pitch of 200 $m and a sag height of 11.236 $m have been successfully fabricated. The average surface roughness of the Ni mold insert is 6.916 nm. The average surface roughness of the molded microlens array is 4.608 nm for MIM and 4.555 nm for MICM. The complete fabrication process of mold insert is executed at room temperature and low pressure for this paper.