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항공전자 응용을 위한 NVIS (Night Vision Imaging System) Green A 호환 LED 개발
김태훈,유창한,윤현주,김민평,윤호신,Kim, Tae Hoon,Yu, Chang Han,Yoon, Hyeon Ju,Kim, Min Pyung,Yoon, Ho Shin 한국반도체디스플레이기술학회 2020 반도체디스플레이기술학회지 Vol.19 No.4
By adapting black body leadflame and thin film type Green A filter, we successfully demonstrated night vision imaging system (NVIS) Green A compatible LED. Fabricated NVIS compatible LEDs show small form factor compared to that of commercialized NVIS compatible LED. Especially, NVIS radiance and chromaticity of MIL-STD-3009 specification can be satisfied simultaneously and easily by controlling the color temperature of the white LED as well as the concentration of the Green A dye and the thickness of the Green A filter. The optimal dye concentration of the NVIS Green A filter is expected to be about 1 wt%. The results of this study are expected to contribute to miniaturization, weight reduction and localization of avionic display and lighting devices.
야간 투시 영상시스템의 Green A에 적합한 작은 형태인자를 가진 LED에 관한 연구
김태훈,유창한,윤현주,김민평,윤호신 한국반도체디스플레이기술학회 2021 반도체디스플레이기술학회지 Vol.20 No.4
In this study, we have successfully developed an unique NVIS Green A compatible LED by combining two technologies. One is white LED made with a black EMC (epoxy molding compound) lead frame. The other is NVIS Green A filter that shields the near infrared region made in the film method. The form factor of the developed NVIS Green A compatible LED was 2.0 x 2.0 x 0.95 mm. And it is possible to satisfy NVIS radiance and color limit specified in MIL-STD-3009 by controlling the concentration of Green A dye and the thickness of the NVIS filter as well as adjusting of color temperature of the white LED. From these results, we are expected that the developed NVIS Green A suitable LED is a promising solution for the weight reduction and the cost reduction of avionic applications.