A novel and rapid fabrication for microlens arrays using microinjection molding.(Report): An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on February 1, 2011. The length of the article is 4491 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.

From the author: This work reports a novel and effective procedure for manufacturing the mold insert of microlens arrays. First, the microlens arrays master is formed using room-temperature imprint lithography and photoresist reflow process. Next, electroforming is carried out to fabriccate the metal mold insert from the master. Finally, microinjection molding is used to replicate the molded microlens arrays. The 200 x 200 arrays of molded microlens, with a diameter of 150 [micro]m, a pitch of 200 [micro]m, and a sag height of 11.29 [micro]m for polycarbonate (PC) material and 11.24 [micro]m for polymethylmethacrylate (PMMA) material have been successfully fabricated. The moldability for PMMA material is better than PC material on molded microlens arrays. The average surface roughness of the molded microlen arrays is 4.53 nm for PMMA material and 4.81 nm for PC material. The mold temperature is the most important processing factor for the focal length and sag height of molded microlens arrays. POLYM. ENG. SCI., 51:391-402, 2011. [C]2010 Society of Plastics Engineers

Citation Details
Title: A novel and rapid fabrication for microlens arrays using microinjection molding.(Report)
Author: Chin-Wan Luo
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: February 1, 2011
Publisher: Society of Plastics Engineers, Inc.
Volume: 51 Issue: 2 Page: 391(12)

Article Type: Report

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