광통신용 비구면 렌즈의 금형 코어 가공 및 해석에 관한 연구
A Study on Analysis and Maching of Mold Core For Optical Communication Aspheric Lens
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초록
In this study, mold core of can type lens for optical communication has been fabricated and heat transfer analysis has been conducted. Through this study, results were obtained as follows. Surface roughness of upper and lower cores by ultra precision grinding were Ra 0.002074(um) and 0.004316(um), respectively. Design P-V and Bestfit P-V as shape accuracy of upper core were 0.0858(um) and 0.0843(um), respectively, and those of lower core were 0.0957(um) and 0.0546(um), respectively. The temperatures of upper and lower surfaces of lens during machining obtained by heat transfer analysis were 576.05℃ and 576.4℃, respectively. In case of inner sleeve, it was estimated that the temperature of the side surface were 575.95℃ by heat transferred from lower core. The maximum and minimum temperatures of lower surface of lens were 576.4℃ and 575.96℃, respectively, according to the positions of holes for air circulation from out side.
Abstract
In this study, mold core of can type lens for optical communication has been fabricated and heat transfer analysis has been conducted. Through this study, results were obtained as follows. Surface roughness of upper and lower cores by ultra precision grinding were Ra 0.002074(um) and 0.004316(um), respectively. Design P-V and Bestfit P-V as shape accuracy of upper core were 0.0858(um) and 0.0843(um), respectively, and those of lower core were 0.0957(um) and 0.0546(um), respectively. The temperatures of upper and lower surfaces of lens during machining obtained by heat transfer analysis were 576.05℃ and 576.4℃, respectively. In case of inner sleeve, it was estimated that the temperature of the side surface were 575.95℃ by heat transferred from lower core. The maximum and minimum temperatures of lower surface of lens were 576.4℃ and 575.96℃, respectively, according to the positions of holes for air circulation from out side.
참고문헌 (4)
- 박인규, "광 Pickup 용 Gradient-Index 대물렌즈 설계", 한국광학회지, 18(4), pp.256~263 (2007), 한국광학회
- 광통신소자 기술개발 현황, "한국과학기술정보연구원", 89~98 (2005)
- 이영민, "비구면 유리 렌즈 금형의 열응력 해석", 한국정밀공학회지, 25(12), pp.125~131 (2008), 한국정밀공학회
- 박성찬, "CODE V를 이용한 광학계 설계실습", pp.168~172 (2005), (주)북스힐