A Compound Parabolic Concentrator Coupled to an Optical Microlenslet Array for Projection Display

DOI

10.2991/mme-16.2017.77How to use a DOI?

Keywords

Micro-projection display, Compound parabolic concentrator, Microlenslet array.

Abstract

Regarded as the fourth-generation light sources, light emitting diodes (LEDs) have recently gained much interest as projection light sources due to their long lifetimes, large color gamut and small size. In this work, we design and fabricate a compound parabolic concentrator (CPC) coupled to an optical microlenslet array as a light collection engine of LED-based micro-projection diaplay. The results indicate that more than 90% light can be collected by the CPC coupled to an optical microlenslet array and transmitted within the designed angle. This method is advantageous in many respects compared with those available, such as compact volume, high collection efficiency, rectangular radiation pattern and controllable output divergence angle. This research leads to the idea of possible use of a CPC coupled to a microlenslet array in the domain of micro-projection display.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Heng Zhao
AU  - Qing Yan
AU  - Jun Wang
AU  - Deng-Xin Hua
PY  - 2016/12
DA  - 2016/12
TI  - A Compound Parabolic Concentrator Coupled to an Optical Microlenslet Array for Projection Display
BT  - Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)
PB  - Atlantis Press
SP  - 566
EP  - 572
SN  - 2352-5401
UR  - https://doi.org/10.2991/mme-16.2017.77
DO  - 10.2991/mme-16.2017.77
ID  - Zhao2016/12
ER  -