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Proceedings Paper

Study on ultrafine machining of a complex microlens mold with a lenticular pattern on an aspherical surface
Author(s): Tae-Jin Je; Eun-chae Jeon; Han-Hee Kim; Hwan-Jin Choi; Doo-Sun Choi
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Paper Abstract

Demand for special optical components having the ability to concentrate and diffuse light effect has increased in order to improve luminance efficiency and function, relative to displays using micro lenses. There is a demand for design and machining technology for optical components that achieve various effects, among them the correction of light aberration and transmittance paths from aspherical surfaces with micro patterns. In this study, micro lens molds were machined that were able to simultaneously concentrate and diffuse light by means of lenticular patterns on aspherical surfaces. Two micro lens molds with micro lenticular pattern (pitch (P) of 10 and 100 μm) were machined on a sine type aspherical surface (amplitude (W) 0.15 mm and period (T) 3.0 mm). The micro lens molds were machined using an ultra-precision DTM (Diamond Turning Machine) and SSS (Slow Slide Servo). The micro lenses were replicated using PMMA resin; then light-transmission measurements were performed to confirm the effectiveness of the shape of various parts of the lenses on light-transmission. It was confirmed by measurement that concentration and diffusion light effects were simultaneously achieved.

Paper Details

Date Published: 22 June 2013
PDF: 7 pages
Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 87693M (22 June 2013); doi: 10.1117/12.2021052
Show Author Affiliations
Tae-Jin Je, Korea Institute of Machinery & Materials (Korea, Republic of)
Eun-chae Jeon, Korea Institute of Machinery & Materials (Korea, Republic of)
Han-Hee Kim, Korea Institute of Machinery & Materials (Korea, Republic of)
Hwan-Jin Choi, Korea Institute of Machinery & Materials (Korea, Republic of)
Doo-Sun Choi, Korea Institute of Machinery & Materials (Korea, Republic of)


Published in SPIE Proceedings Vol. 8769:
International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013)
Chenggen Quan; Kemao Qian; Anand Asundi, Editor(s)

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