• The Transactions of The Korean Institute of Electrical Engineers
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• v.64 no.6
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• pp.935-939
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• 2015

In this paper, we analyze indoor visible light communication environment based on LightTools. If the environments for VLC are too various, it is not easy to analyze the VLC environment using mathematical techniques. To overcome this problem, we use LightTools program for the analysis of various VLC environment.

• The Optical Journal
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• s.139
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• pp.42-43
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• 2012

LightTools 사용자 고급세미나 교육이 (주)모던하이테크의 주최로 2012년 4월 30일부터 5월 4일까지 5일 동안 연세대학교(신촌캠퍼스)에서 진행되었다. 이번 컨퍼런스는 광학설계 전문인재 양성의 목적을 위해, Synopsys 본사의 LightTools 교육담당엔지니어인 Dr. Jake Jacobsen가 직접 한국을 내방하여 강의를 진행하였다.

• The Optical Journal
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• s.151
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• pp.23-24
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• 2014

(주)모던하이테크(대표이사 김명중)는 지난4월 14일(월)부터 4월 16일(수)까지 3일간 'LightTools$^{(R)}$ Advanced Training (특별 조명 광학설계 실습 고급 교육 세미나)'이라는 주제로 세미나를 진행했다. (주)모던하이테크의 LightTools$^{(R)}$ 교육 세미나는 미국 SYNOPSYS 사의 Mary Kate Crawford 기술담당자가 직접 내한하여 Light-Tools$^{(R)}$의 실무기술 이론부터 실습위주의 강의로 진행됐다. 해당 교육은 지난 3월에 진행된 CODE V$^{(R)}$ 교육 참가자들의 높은 만족도로 인해 새로 개설된 교육이다.

• Journal of Radiation Protection and Research
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• v.41 no.3
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• pp.282-285
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• 2016

Background: To optimize the photon transmission efficiency of light guides used in scintillation detectors, LightTools code, which can construct and track light, was used to analyze photon transmission effectiveness with respect to light guides thickness. Materials and Methods: This analysis was carried out using the commercial light guide, N-BK 7 Optical Glass by SCHOTT, as a model for this study. The luminous exitance characteristic of the LYSO scintillator was used to analyze the photon transmission effectiveness according to the thickness of the light guide. Results and Discussion: The results of the simulations showed the effectiveness of the photon transmission according to the thickness of the light guide, which was found to be distributed from 13.38% to 33.57%. In addition, the photon transmission efficiency was found to be the highest for light guides of 4 mm of thickness and a receiving angle of $49^{\circ}$. Conclusion: Through such simulations, it is confirmed that photon transmission efficiency depends on light guide thickness and subsequent changes in the internal angle of reflection. The aim is to produce an actual light guide based on these results and to evaluate its performance.

• Korean Institute of Interior Design Journal
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• no.25
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• pp.213-220
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• 2000

The meaning of light is not always developed aspect in process of architecture history as essence worth of the architecture. It means that architectural light is not affected simple development of civilization, but it has more complex aspect. The technology of applying architecture has continuous development of society that light is possible to extend quantity by development of technology because light is component not simple material or tools but strong worthy aspect, quality development of architecture comes true by exact understanding and application. Conversion from medieval society to modern society begins at the Industrial Revolution has new skills and materials, the architectural conform general space filled with non-characteristic light, and it gives rising to pursuit Utopia is not exist frequently. In result, light of metaphysical meaning is diminished and exterminated. In other hand light seems to be tools by development of technology in modern society, recovering its own meaning in other aspect. That light makes perfect image of architecture not by finite meaning only for simple space but by expressing strongly point that unify the whole architectural composition. Light is free from partial material of architecture. Light activates major composition through high-technology, and has possibility to carry out the essential worth animate architecture. The light expresses relative speciality for sense of place recognizes major component which the human being lives in and conform the real meaning of architecture.

• The Optical Journal
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• s.140
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• pp.32-33
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• 2012

(주)모던하이테크, 한국산업기술대학교, 인하대학교 광기술교육센터가 주관하고 LG전자, 한국광학기기산업협회, 경기도 시흥시, 고효율조명협회, 경기 TP 한국산업관리공단 경기지역본부 등이 후원한 '차세대 광학설계 기술향상을 위한 CODE V & LightTools User Conference 2012'가 지난 5월 16일 한국산업기술대학교에서 개최되었다. 모던하이테크가 매년 개최하고 있는 본 컨퍼런스는 광학산업 전문가 200여명이 참석, 정보교환과 커뮤니티의 장으로 펼쳐졌다.

• The Optical Journal
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• s.128
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• pp.36-37
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• 2010

광학설계 프로그램 전문업체인 (주)모던하이테크(대표 김영중, www.okmodern.com)는 지난 5월 10일부터 11일까지 양일간 서울 교육문화회관에서 '2010 LED핵심조명기술 및 CODE V & LightTools 컨퍼런스를 개최했다. '광학인의 날'이라는 주제로 한국광학기기협회와 전자신문 등이 후원한 이 행사에는 130여명의 국내 광학인들 외에 미국 Optical Research Associates(이하 ORA)사의 CEO인 Mr.Goerge Baze를 비롯한 임원진들이 함께하여 직접 비전을 소개하고 향후 국내 유저들을 위해 적극적인 서비스 지원을 약속했다.

• Proceedings of the KIEE Conference
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• 2004.07c
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• pp.1912-1914
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• 2004

As the characteristics of LED disposition, LED warning light must be designed differently from general incandescent lamp warning light whose light source is located in origin. In this paper, the globe's lens of LED warning light was designed considering the LED intensity distribution and the arrangement of the LED. And prove the appropriateness of that design by simulation in LightTools which is optical design program.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.11 no.5
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• pp.76-81
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• 2012

The continuing demand for increasingly slimmer and brighter liquid crystal display(LCD) panels has led to an increased focus on the role of the light guide panels(LGPs) or optical films that are used to obtain diffuse, uniform light from the backlight unit(BLU). And the most basic process in the production of such BLU components is the micromachining. LCD BLUs comprise various optical elements such as a LGP, diffuser sheet, prism sheet, and protector sheet with micro patterns. High aspect ratio patterns are required to reduce the number of sheets and enhance light efficiency, but there is a limit to the aspect ratio achievable for a given material and cutting tool. Therefore, this study comprised a series of experimental evaluations conducted to determine the machining feasibility in microcutting various aspect ratio patterns on electroless nickel plated die materials when using single-crystal diamond tools. Cutting performance was evaluated at various cutting speeds and depths of cut using different machining methods and machine tools.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2003.04a
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• pp.202-208
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• 2003

This study carried out a cutting experiment on Duralumin A16061-76, which is light but strong and highly anticorrosive, so recently popular as a lightweight material, by changing cutting conditions and alternating 4 insert tips, and examined the effect of each insert tip on cutting force at certain cutting conditions, the measurements of the coarseness of processed surfaces roughness, and the chip workability. The 1311owing conclusions were drawn from the results. Cutting force for cutting tool is when insert tips were alternated at each cutting condition, the cutting force of cutting tools was highest then CBN tools were use(1 next by Ceramic tools, Cermet tools, and WC tools. Therefore, WC tools are considered most suitable for cutting Duralumin A16061-T6. Surface roughness as for the coarseness of surfaces according to insert tips applied to Duralumin A16061-T6 under the cutting condition of depth of cut below 1mm, feed rate below 0.24mm/rev and cutting speed over 100m/min the coarseness of material surface roghness appeared to be finest when WC tools were used, next by Ceramic tools, Cermet tools, and CBN tools.