Development of a double-sided micro lens array for micro laser projector application

Fong Zhi Chen*, Cheng-Huan Chen, Cheng Hsien Wu, Ching Hsiang Kuo, Jyh Rou Sze, Wei Yao Hsu, Yuan Chieh Cheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This paper introduces the development of a double-sided micro lens array (DSMLA) for application in micro laser projectors. For commercial mass production, it is necessary to investigate the concurrent engineering of optical design, mold fabrication, and plastic injection molding at once. This experiment based the design of the micro lens array on the scalar diffraction theory. The proposed DSMLA can simultaneously shape red, green, and blue laser beams into a uniform projection pattern. An ultra precision diamond turning machine using a slow tool servo method fabricated the mold. The study considered optical design constraints from the feedback of mold fabrication and plastic injection molding, measuring and comparing fabricated samples with calculated results. Experimental results show that the fabricated DSMLAs achieve the desired function and application feasibility for micro laser projectors.

Original languageEnglish
Pages (from-to)238-241
Number of pages4
JournalOptical Review
Issue number4
StatePublished - 6 Aug 2012


  • double-sided micro lens array
  • micro laser projector

Fingerprint Dive into the research topics of 'Development of a double-sided micro lens array for micro laser projector application'. Together they form a unique fingerprint.

Cite this