Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지
DOI QR코드

DOI QR Code

Development of Portable Astral Light using the High Power 3-Color LEDs

고출력 3색 LED를 이용한 휴대용 무영등의 개발

  • Yu, Seong-Mii (Department of Nursing, Gwangju Health College University) ;
  • Cheon, Min-Woo (Department of Hospital Biomedical Engineering, Dongshin University)
  • Received : 2011.10.12
  • Accepted : 2011.12.30
  • Published : 2011.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

We was designed the portable LED light which can shadowless shooting and developed using a high-power LED that medical attention as a new lighting components for structural confirmation of oral dental area, medical and surgical lesions in the local area. LED which applied to the development, was used the 3-color LEDs for possible of implement a variety of colors and adjusted the light intensity. It is being magnified of delicacy expressiveness and three-dimensional for tone of the subject-specific. It has been developed a highly efficient light module that LED is used to consider the electrical characteristics and optical properties. SMPS has We was designed the portable LED light which can shadowless shooting and developed using a high-power LED that medical attention as a new lighting components for structural confirmation of oral dental area, medical and surgical lesions in the local area. LED which applied to the development, was used the 3-color LEDs for possible of implement a variety of colors and adjusted the light intensity. It is being magnified of delicacy expressiveness and three-dimensional for tone of the subject-specific. It has been developed a highly efficient light module that LED is used to consider the electrical characteristics and optical properties. SMPS has produced for use in mobile that can be driven at low voltage. In addition, it was also possible to implement a variety of colors from monochromatic Light to polychromatic light using by PWM control method and were available 32,768.

본 연구에서는 의료용 신조명 부품으로 주목받고 있는 고출력 LED를 사용해 구강구조 확인을 위한 치과영역, 진료 및 수술실에서 환부에 대한 작은 범위(국소부위)의 무영 촬영이 가능한 휴대용 LED Light를 설계 개발하였다. 개발에 적용한 LED는 피사체 고유의 Tone에 대한 섬세한 표현력과 입체감을 부각시키기 위해 다양한 색상 구현 및 광량조절이 가능하도록 3색 LED를 사용했다. 사용된 LED의 전기적 특성 및 광학적 특성을 고려해 고효율의 Light Module를 개발했으며 휴대 사용을 위해 낮은 전압에서도 구동이 가능한 SMPS를 제작했다. 또한 PWM 제어방식을 이용해 단색광부터 백색광까지 32,768개의 다양한 색상 구현이 가능했다.

Keywords

References

  1. N. Holonyak, Jr. and S.F. Bevacqua, "Coherent (visible) light .emission from Ga AsP junctions,'' Appl. Phys. Lett., Vol. 1, pp. 82-83, 1962. https://doi.org/10.1063/1.1753706
  2. S. Nakamura, M. Senoh, and T. Mukai, "p-GaN/N- InGaN/N-GaN double-heterostructure blue-light-emitting diodes," Jpn. J. Appl. Phys., vol. 32, no. 1A/B, pp. L8-L11, 1993.
  3. H.S. Kim, Y.S. Kim, and A.S. Chio "A Stydy on the Subhective Evaluation of Color Appearance under the Different LED Conditions," J. of KIIEE, vol. 25, no. 2, pp. 43-52, 2011.
  4. M.W. Cheon, "Wound Recovery of Light Irradiation by White LED," J. KIEEME, vol. 24. no. 1, pp. 42-46, 2011.
  5. D.A. Steigerwald, J.C. Bhat, D. Collins, R.M. Fletcher, M.O. Holcomb, M.J. Ludowise, P.S. Martin, and S.L. Rudaz, ""Illumination with solid-state lighting technology," IEEE J. sel. top. Quantum electron., vol 8, no. 2, pp. 310-320, 2002. https://doi.org/10.1109/2944.999186
  6. O. Moisio, P. Pinho, E. Tetri and L. Halonen, "Controlling colour temperature of LED-luminaire," in Proc. 10th. Int. Symposium on the Science & Technology of Light Sources, Toulouse, France, July. 2004 pp. 375-376.
  7. N. Adamskaya, P. Dungel, R. Mittermayr, J. Hartinger, G. Feichtinger, K. Wassermann, H. Redl, and M. V. Griensven, "Light therapy by blue LED improves wound healing in an excision model in rats," Injury, vol. 41, no. 7, pp. 1038-1042, 2010.
  8. J.S. Lee, Y.H. Kim, H.Y. Kang, E.S. Lee, C.H. Oh and Y.C. Kim, "Topical photodynamic therapy for treatment of actinic keratosis using light-emitting diode (LED) device," Korean J. Dermatol, vol. 43, no. 4, pp. 469-474, 2005.
  9. K. Y. Kim, K. K. Han, C. B. Chung, "The Technical Trend of LED Lighting for Medical Applications" In Proc. 2010 Spring Conf. KIIEE, Gangwon, Korea, May, 2010, pp. 171-173.
  10. J.H. Mun, H.J. LEE, and G.T. Hong, "Optimum design of an astral lamp for dental surgery using high power LED," Proc. 2009 Spring Conf. KSPE, Jeju, Korea, Jun., 2009, pp. 403-404.
  11. W.Y. Cheon, S.B. Song, J.H. Kim, and J.W. Park, "Development of LED Operating Light" Proc. 2009 Summer Conf. KIEE, Muju, Korea, July, 2009, pp. 1617-1618.