Numerical simulation of residual stress and birefringence in the precision injection molding of plastic microlens arrays

Can Weng; Wing Bun Lee; Suet To; Bing yan Jiang

doi:10.1016/j.icheatmasstransfer.2008.11.002

Numerical simulation of residual stress and birefringence in the precision injection molding of plastic microlens arrays

Can Weng, Wing Bun Lee, Suet To, Bing yan Jiang

Research output: Journal article publication › Journal article › Academic research › peer-review

30 Citations (Scopus)

Abstract

Microlens arrays are critical components in the assembly of display devices used in various telecommunication products. The optical quality of these plastic lenses is very sensitive to the presence of residual stress. In this paper the distribution of residual stress and birefringence of these microlens arrays has been investigated. It is found that maximum residual stress always occurs in the regions near the gate. The predicted trends and patterns of the residual stress and birefringence distribution agree well with the experimental results. The effects of six main processing parameters on maximum value of residual stress are studied. The noticeable discrepancy between the simulation and the experimental results are discussed. Crown

Original language	English
Pages (from-to)	213-219
Number of pages	7
Journal	International Communications in Heat and Mass Transfer
Volume	36
Issue number	3
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2008.11.002
Publication status	Published - 1 Mar 2009

Keywords

Microlens array
Numerical simulation
Precision injection molding
Residual stress and birefringence

ASJC Scopus subject areas

General Chemical Engineering
Condensed Matter Physics
Atomic and Molecular Physics, and Optics

More information

10.1016/j.icheatmasstransfer.2008.11.002

Cite this

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abstract = "Microlens arrays are critical components in the assembly of display devices used in various telecommunication products. The optical quality of these plastic lenses is very sensitive to the presence of residual stress. In this paper the distribution of residual stress and birefringence of these microlens arrays has been investigated. It is found that maximum residual stress always occurs in the regions near the gate. The predicted trends and patterns of the residual stress and birefringence distribution agree well with the experimental results. The effects of six main processing parameters on maximum value of residual stress are studied. The noticeable discrepancy between the simulation and the experimental results are discussed. Crown",

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AU - Weng, Can

AU - Lee, Wing Bun

AU - To, Suet

AU - Jiang, Bing yan

PY - 2009/3/1

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N2 - Microlens arrays are critical components in the assembly of display devices used in various telecommunication products. The optical quality of these plastic lenses is very sensitive to the presence of residual stress. In this paper the distribution of residual stress and birefringence of these microlens arrays has been investigated. It is found that maximum residual stress always occurs in the regions near the gate. The predicted trends and patterns of the residual stress and birefringence distribution agree well with the experimental results. The effects of six main processing parameters on maximum value of residual stress are studied. The noticeable discrepancy between the simulation and the experimental results are discussed. Crown

AB - Microlens arrays are critical components in the assembly of display devices used in various telecommunication products. The optical quality of these plastic lenses is very sensitive to the presence of residual stress. In this paper the distribution of residual stress and birefringence of these microlens arrays has been investigated. It is found that maximum residual stress always occurs in the regions near the gate. The predicted trends and patterns of the residual stress and birefringence distribution agree well with the experimental results. The effects of six main processing parameters on maximum value of residual stress are studied. The noticeable discrepancy between the simulation and the experimental results are discussed. Crown

KW - Microlens array

KW - Numerical simulation

KW - Precision injection molding

KW - Residual stress and birefringence

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JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

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ER -

Numerical simulation of residual stress and birefringence in the precision injection molding of plastic microlens arrays

Abstract

Keywords

ASJC Scopus subject areas

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