Fabrication of plastic microlens array for array microscopy by three-dimensional diamond micromilling.

Fabrication of plastic microlens array for array microscopy by three-dimensional diamond micromilling.
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DOI:
10.1117/1.3497567
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发表时间:
2010-10-27
期刊:
Optical engineering (Redondo Beach, Calif.)
影响因子:
--
通讯作者:
Tkaczyk TS
Tkaczyk TS
中科院分区:
其他
文献类型:
--
作者:
McCall B;Tkaczyk TS

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两个由20个透镜组成的透镜阵列(4×5)由聚苯乙烯(Rexolite 1422)制成,采用3-D三轴微铣削工艺。一个阵列的透镜为凹透镜(Rcurv = -2 mm),另一个阵列的透镜为凸透镜(Rcurv = 2 mm)。描述并评价了一种校正单透镜三维微铣程序的方法。镜头间距为4mm,所有镜头Ødiam = 2.6 mm。通过对关键光学参数(半径误差、波前误差和表面粗糙度)的测量,与塑料注射成型透镜的形状误差和表面粗糙度相比,微磨透镜具有更高的光学质量。
Two lens arrays of 20 lenses (4×5) are fabricated in polystyrene (Rexolite 1422) using a 3-D, three-axis micromilling process. The lenses of one array are concave (Rcurv = –2 mm) and the lenses of the other array are convex (Rcurv = 2 mm). A method for correcting a 3-D micromilling program for a single lens is described and evaluated. The lens separation is 4 mm and Ødiam = 2.6 mm for all lenses. Based on a measurement of key optical parameters (radius error, wavefront error, and surface roughness), micromilled lenses are shown to be of high optical quality compared with the form error and surface roughness obtained with plastic injection molded lenses.
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