• Korean Journal of Cognitive Science
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• v.22 no.3
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• pp.235-254
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• 2011

Two experiments were conducted to investigate the impact of binocular disparity information on Neon color spreading (NCS). The stimuli was the modification of Ehrenstein figure used by Redies and Spillmann(1981); inner and outer segments were achromatic and middle segments was chromatic. In experiment 1, the effect of binocular disparity was tested in each segment that were divided inner, middle and outer segments. In experiment 2, the impact of added segments that were put in different depth place were tested. The results showed that the segments on same place were, the clearer the NCS was. Consistent with the previous studies, the effect of color segment in front or in behind was not appeared. The case of added segments, regardless of added segments were placed either front or behind, the NCS was reduced. But the effect of added outer segments was more affect then added inner segments. This results were suggested that NCS could be affected by depth information but more affected by stage of before depth processing.

• The Transactions of the Korean Institute of Power Electronics
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• v.8 no.6
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• pp.504-511
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• 2003

In this paper, inverter type neon power supply using a piezoelectric transformer is fabricated and its characteristic is investigated. Developed neon power supply is composed of basic circuit and blocks, such as rectifier part, frequency oscillation part and piezoelectric transformer and resonant half bridge inverters. In this paper for complement the low power limitation, piezoelectric transformer at parallel connected driving by inverter is studied for noon tubes system of high power. When piezoelectric transformer is connected with parallel, LC filter connection method with parallel and selection of inductance L and capacitor C of primary side is suggested for reduce unbalanced current at the terminal of each transformer. Piezoelectric transformers use piezoelectric ceramic devices. Thus it is wireless therefore it has high power density, high Isolation level, low loss, more light, and miniaturization. In addition, high voltage transfer ratio is expected because there is no leakage inductance. Also, it has economic merit that the electrical loss Is low because structure is simple, small and tighter weight.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.16 no.6
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• pp.22-29
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• 2002

The conventional neon transformer systems are very bulky and heavy because it consist of leakage type transformers made of silicon steel plates. In addition, it has problems in noise by a neon transformer and in possibilities of fire and electrical shock when neon tubes are destroyed. A protection circuit is designed for all types of neon transformer loaded with one or more neon tubes. Whenever the neon tube fails to be started up, comes to the life end, encounters faults with open-circuits at the output terminals of the neon transformer, the protection circuit will be initiated to avoid more critical hazards. The input of the transformer is automatically cut off when the abnormal condition occurs, preventing waste of no-load power. To improve such problems, in this paper, a new type of neon power supply systems for neon tube is designed and implemented using inverter type circuits and a newly designed lightweight transformer. In the developed neon transformer system, a 60［Hz］power input is converted to 20［KHz］high frequency using half-wave inverters, thereby the transformer reduces its size by 1/5 in volume and 1/10 in weight.

• Proceedings of the KIEE Conference
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• 1997.07f
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• pp.2066-2068
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• 1997

네온용 전자식 안정기(EBN)의 출력선간 전자파방해(EMI)로 인한 네온관간의 신호상쇠 현상을 방지하는 회로를 설계하였다. 특히 네온관이 가까이 위치할 때 전자파유도로 인하여 네온발광이 상쇄되는 원인을 방지함으로써 EBN의 성능이 개선되는 결과를 얻었다. 또한 유도전자파를 방지함으로써 인체에 유해한 전자파를 차단하는 효과도 얻었다.

• The Journal of the Korea Contents Association
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• v.11 no.2
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• pp.303-311
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• 2011

For us who live in the 21 century, a variety of media and videos such as TV, movies, magazines, internet, etc. have now become indispensable entities. Because of changing age, unlimited sharing of information, and development of machines, fashion and ideas are rapidly conveyed and theres is also a tendency to seek after more sense based and stimulating things. Around us, there are innumerable colors which do not seem to have any special presence like the air and go beyond human ability to identify them. Such colors exert direct influence upon the visual culture and most rapidly reflect that age's trend. It is precisely from this perspective that the importance of neon colors, which have recently received the spotlight, have emerged in a magnified way. Yet, although much research has been conducted on colors by earlier studies, there has been no research on neon colors and as such, I felt the need for a study of neon colors. The purpose of this study is to recognize the importance and psychology of colors within the visual culture, discover whether there is a correlation between the characteristics of neon colors and the visual culture, and seek ways to demonstrate it by applying it to art education.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.17 no.1
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• pp.17-24
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• 2003

In this paper, a high efficiency leakage transformer for neon tube is developed to improve its power factor, to reduce its core loss and weight by using a technique of shape optimization and grain direction of non-oriented silicon steel strip. A protection circuit is designed for all types of neon transformer loaded with one or more neon tubes. Whenever the neon tube fails to be started up or comes to the life end, or encounters faults with open-circuits at the output terminals of the neon transformer, the electronic type protection circuit will be initiated to avoid more critical hazards. These neon transformers need a electronic type protection circuit to prevent from current stresses on circuit components by neon tube fail. The input of the transformer is automatically cut on when the abnormal condition occurs, preventing waste of no-load power.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.260-263
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• 2003

Lasers are used as the source of the interferometers in the industrial field. These lasers need 2 requirements. The first is the narrow linewidth of laser for the long coherence length. The second is the stabilized frequency of laser for the precision measurement. Now HeNe lasers are mostly used and the frequency stability is about 10$^{-9}$ . In this paper, we construct the HeNe laser systems of frequency stabilization using typical 2 method, the beat frequency stabilization method and the intensity difference method. So, we get the frequency stabilities of 2.01$\times$10$^{-9}$ (0.1s), 3.4$\times$10$^{-9}$ (0.1s).

• Proceedings of the KIEE Conference
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• 1997.07a
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• pp.143-145
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• 1997

특수변압기의 일종인 네온 변압기의 기본원리와 특성을 조사하고 원가절감, 효율향상등 특성개선을 위하여 누설자속의 해석기술과 규소강판의 압연방향에 따른 자속의 영향, 압연방향성 코아의 형상설계방향 등을 제시한다.

• Proceedings of the KIEE Conference
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• 2000.07b
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• pp.1280-1282
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• 2000

본 연구에서는 마이크로프로세서를 이용하여 경제적인 하드웨어의 구성과 다양한 소프트웨어 알고리즘을 구현함으로서 기존의 아날로그방식이 아닌 디지털 신호처리를 이용하여 가변 주파수에 의한 휘도 조절로 음향 동기화조명제어가 가능한 네온관 조명장치 컨트롤러를 개발하였다.

• Proceedings of the Optical Society of Korea Conference
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• 1988.06a
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• pp.98-103
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• 1988

1983년 10월에 개최된 제 17차 국제도량형 총회에서 '미터는 비칭 진공속에서 299 792 458분의 1초동안 진행한 경로의 길이이다.'로 정의 됨에 따라서 미터의 현장장비인 분자의 초미세 구조 흡수선에 주파수 안정화한 레이저의 광주파수 및 진공파장이 표준선으로 추천되었다. (1) 본 연구에서는 이들 주파수 안정화 레이저 중 하나인 옥소안정화 헬륨 네온 레이저 (파장 633㎚)를 개발하고 이에 대한 연구의 결과를 기술하였다.