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http://dx.doi.org/10.5370/KIEE.2014.63.9.1281

The Improvement of Blur Phenomenon at Laser Beam Scanner  

Roh, Jin Ki (Dept. of Electrical Engineering, Myong Ji University, IM Co., Ltd.)
Kim, Hye Jin (IM Co., Ltd.)
Kim, Kab Il (Dept. of Electrical Engineering, Myong Ji University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.63, no.9, 2014 , pp. 1281-1285 More about this Journal
Abstract
Recently, as the wide spread of smart phone, pico projector which is used at the smart phone is appeared as a portable display device. In this paper, among several pico projectors, laser beam scanner module is dealt with in which laser is used as light source, and mems-mirror is used as optical panel. In this device, screen image quality is a special issue, and blur effect is a typical adverse effect to the quality of this device. So the enhancement of this blur effect has an important factor of the quality of the device. The definition of the blur and the main source of the blur are studied and the simulation results and way of improvement are also suggested.
Keywords
Pico projector; Smart phone; Laser beam scanner; Mems-mirror; Image quality; Blur;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Jinsub Um, Youncheol Shin, Mooncheol Kim "5 Channel DLP Display Device"Korean Society Of Color Studies Symposium 2014, 2014
2 Jegil Koo "Implementation of The Mini-type Pico Projector Platform mounting Multimedia" ,IEEK Vol 48, 2011   과학기술학회마을
3 Paul F.Goldsmith "Quasioptical System:Gaussian Beam Quasioptical Propogation And Applications" John Wiley & Sons, 1997
4 Kuroda Kazuo, Yamamoto Kazuhisa, Jika "Explanation of Laser Display" Optronics ,2010
5 Jingil Jung, Jungwoo Kim, Jinho Lee, Byungwoo Jun," MEMS display control circuit design By use of MEMS Optical Scanner" Symposium of Signal process Vol. 18 Issue 1, 2005
6 Jungul Oh, Donggil Lee, Yanggyu Kim, Gwanghun Lee, Jinki Roh "Direct Molded Aspherical Glass Lens in Metal Holder for Laser Pico Projector" KSPE Symposium, 2013
7 Denis Darmon, John R. McNeil, Mark A. Handschy "LED-Illuminated Pico Projector Architectures"SID Symposium Digest of Technical Papers,Volume 39, Issue 1, pp 1070-1073, May 2008
8 Mark Freeman, Mark Champion, Sid Madhavan "Scanned Laser Pico-Projectors:Seeing the Big Picture (with a Small Device)" Optics and Photonics News, Vol. 20, Issue 5, pp. 28-34, 2009