Browse > Article
http://dx.doi.org/10.3807/KJOP.2018.29.4.149

Design of a Telecentric Lens with a Smartphone Camera to Utilize Machine Vision  

Choi, Yeon-Chan (Department of Photonics & Sensors Engineering, Hannam University)
Rim, Cheon-Seog (Department of Photonics & Sensors Engineering, Hannam University)
Publication Information
Korean Journal of Optics and Photonics / v.29, no.4, 2018 , pp. 149-158 More about this Journal
Abstract
A generalized structural design equation can be used to simplify and systematize a telecentric lens system composed of multiple lenses, as a creative design method of the authors. Through this structural equation, we have investigated the feasibility and design methodology of a telecentric lens equipped with a conventional smartphone camera for machine vision. As a result, we could verify and present a useful, generalized structural equation termed the $f{\theta}$ formula, being able to divide and combine the whole telecentric lens system into two modularized lens groups.
Keywords
Optical structural design; Module design; $f{\theta}$ formula; Telecentric lens;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 C.-S. Rim, "Non-imaging optical design of a measurement probe for LCD display used in a color analyzer," Korean J. Opt. Photon. 22, 239-244 (2011).   DOI
2 C.-S. Rim, "The design of telecentric lenses and fly-eye lenses by utilizing $f_{\theta}$ formula," Korean J. Opt. Photon. 24, 9-16 (2013).   DOI
3 Edmund Optics, The Advantages of Telecentricity (Application Notes, Imaging Resource Guide), Section 5.1.
4 C. Efstratiou and C. Mascolo, Mobile Phone Sensing (Cambridge University), Lecture 7.
5 C.-S. Rim, "Design of smart phone camera lens using forbes aspherical surface," Korean J. Opt. Photon. 28, 141-145 (2017).
6 J.-D. Hud, J.-S. Sung, J.-M. Sohn, H.-J. Lee, Y.-S. Chung, and E.-H. Paik, Technology Trends of Mobile AppStore (ETRI, Vol. 25, No. 3, June, 2010).
7 C.-S. Rim, Fundamentals of Geometrical Optics (Tech Media, Seoul, Korea, 2003), Chapter 2.
8 X. Peng, "Design of high pixel mobile phone camera lens," Res. J. Appl. Sci. Eng. Technol. 6, 1160-1165 (2013).
9 Samsung, https://www.samsung.com/semiconductor/imagesensor/.
10 Edmund Optics, https://www.edmundoptics.co.kr/.
11 Edmund Optics, Telecentric Lens Size Control (Application Notes, Imaging Resource Guide), Section 5.3.