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http://dx.doi.org/10.14479/jkoos.2015.20.2.167

Developement of Scope for Military Rangefinder Using Schmidt Prism and Biprism Theory of Optometric Instrument  

Cha, Jung-Won (The Faculty of Beauty Health Sciences, Major in Ophthalmic Optics, Shinhan University)
Lee, Dong-Hee (Dept. of Visual Optics, Far East University)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.20, no.2, 2015 , pp. 167-175 More about this Journal
Abstract
Purpose: The new-type rangefinder, which is using the biprism principle, is introduced to develop the range finder which can be easily carried by soldiers, and in order to realize those technologies specifically, we try to develop a scope for military rangefinder by doing optical design which can secure enough space to move the biprism. Methods: After setting up the verious initial condition to realize two kinds of goals, that are the securement of enough space to move the biprism and the easy-exchangeability of two kinds of biprisms, and then the optical system was optimized by using optical design program CodeV in order to minimize the finite ray aberrations. Results: We designed the biprism housing to makes it possible to swap the two kinds of biprisms. It was appeared that the Schmidt prism is suitable as erecting prism which can make sure the space to move the biprism. 16.5 mm was good for the face length of Schmidt prism. The optical system with a Schmidt prism and a biprism was designed, and the finite ray aberrations was minimized. Conclusions: We developed a 5X scope for an optical rangefinder using a biprism and a Schmidt prism with 16.5 mm face length. This scope is valid for the optical system which has the effective field angle of ${\pm}3.6^{\circ}$, and the finite ray aberrations are well controlled within the ${\pm}8.95^{\prime}$.
Keywords
Biprism; Schmidt prism; +5X; Scope for rangefinder; For military;
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Times Cited By KSCI : 5  (Citation Analysis)
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1 Nam DH. Gun, 1st Ed. Seoul: Planetmedia, 2014;82-183.
2 You YW, Kim BR, Yang U, Kim DY. Weapon Bible, 1st Ed. Seoul: Planetmedia, 2013;12-68.
3 Bumryul. For an example of the scope sighting method, 2011. http://blog.naver.com/PostView.nhn?blogId=bumryul&logNo=100137606158, (05 May 2015).
4 Kim HJ, Jun HG, Kim DH, Lee SH, Choi KS. A study on the development of a distance measuring instrument using laser. Proceedings of the Korea Institute of Signal Processing and Systems Conference(KISPS). 2001;2(1):85-88.
5 Yoo BH, Shin BS, Chang WS, Kim JG, Whang KH. Development of range finder using long wavelength laser. Report of International Joint Research Project(Project No.1350009303). Ministry of Science & Technology. 2004; August:11-23.
6 Park SH, Lee DH. Development on a Relay Lens Type Scope with 70 mm Eye Relief. J Korean Ophthalmic Opt Soc. 2009;14(3):29-35.
7 Park SH, Lee DH. Development on a Roofed Pechan Prism Type Scope with Long Eye Relief. J Korean Ophthalmic Opt Soc. 2010;15(3):247-255.
8 Cha JW. Study on golf range finder by using biprism theory of keratometer. J Korean Ophthalmic Opt Soc. 2013;18(4):495-501.   DOI
9 Cha JW. Golf course hole distance measuring apparatus using image division prism. Korea. patent 1013979020000, 2014.
10 Warren JS. Modern Optical Engineering, 4th Ed. New York: McGraw-HILL, 2008;142-144.
11 Bruce RI, David H, Joseph K. CodeV User Manual, Version 10.4. California: Optical Research Associates, 2012;1-242.
12 Lee DH, Park SH. Development of 3X scope with objective configured with doublet+meniscus lens. J Korean Ophthalmic Opt Soc. 2014;19(4):487-492.   DOI
13 Warren JS. Modern Lens Design. New York: McGraw-HILL, 1992;63-71.
14 Warren JS. Modern Lens Design. New York: McGraw-HILL, 1992;87-101.
15 Warren JS. Modern Optical Engineering, 4th Ed. New York:McGraw-HILL, 2008;417-428.
16 Freeman MH, Hull CC. Optics, 7th Ed. Oxford: Butterworth-Heinemann. 2003;194-210.
17 Warren JS. Modern Optical Engineering, 4th Ed. New York: McGraw-HILL. 2008;339-364.
18 Lee DH, Park SH. Development of scope with Abbe-Knig prism. J Korean Ophthalmic Opt Soc. 2013;18(4):509-517.   DOI   ScienceOn