A low-dispersion fiber feed Littrow-mounted grating spectrometer for education was designed and fabricated. The dispersion element is a reflective type blazed grating Edmundoptics NT 46-075 (spatial frequency 600 lines/mm, dimension 30mm×30mm, blazed angle 8.6 degree). The optical fiber coupler module for optical guiding from telescope to spectrometer is composed of a multi-mode FC connector - FC connector optical fiber patch cord (core/cladding diameter 50μm/125μm) and two 1.25" throw-tube couplers. The lens for collimating and imaging is a general purpose focal length 50 mm camera lens (f/1.8). The device for optical path control is a rectangular prism (size 25mm×25mm). The imaging camera sensor is a Meade DSI Pro 2 CCD sensor (black and white, 752×582 pixels and pixel size 8.3μm×8.6μm). Softwares for data logging and analysis consist of Meade Autostar Suite, NIH imagej and Vernier Logger Pro 3. The wavelength coverage range of the spectrometer is 205 nm at central wavelength 550 nm. The wavelength resolution is 1.7 nm.

ABSTRACT
1. 서론
2. 리트로마운트형 분광계 구성요소 및 구조
3. 분광계 제작
4. 스펙트럼 사진 촬영, 데이터 수집 및 분석용 소프트웨어
5. 분광계 특성 측정 및 분석
6. 결론
참고 문헌

• 배지훈(경북대학교 IT대학 전자공학부) | J. -H. BAE (School of Electronic Engineering, Kyungpook National University)
• 송재원(경북대학교 IT대학 전자공학부) | J. -W. SONG (School of Electronic Engineering, Kyungpook National University) 교신저자
• 윤태석(경북대학교 자연과학대학 천문대기과학과) | T. S. YOON (Department of Astronomy & Atmospheric Sciences, Kyungpook National University)