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양순철(Sun-Choel Yang),김상혁(Sang-Hyuk Kim),허명상(Myung-Sang Huh),장기수(Ki-Soo Chang),박순섭(Soon-Sub Park),원종호(Jong-Ho Won),김건희(Geon-Hee Kim) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.2
Ultra Precision Machining Techniques, such as manufacturing Micro Lens Array(MLA), off-axis mirror, F-θ lens for laser printer, are achieved, based on technologies in consequence of development of modern high-precision machining mechanism. Above all, FTS(Fast Tool Servo) and STS(Slow Tool Servo) are more innovative technologies for reducing time and development costs. In this paper, it is described that MLA machining technique by FTS, off-axis mirror machining technique by STS, optics for observing space, and development of infrared aspheric lens for a thermal imaging microscope.
김건희(Geon Hee Kim),양순철(Sun Choel Yang),국명호(Myung Ho Kook),원종호(Jong Ho Won) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
Because of some characteristics of the infrared(IR), IR optical systems have many advantages for development of many commercial field. The thermal imaging camera which works in 8 - 12 wavelength range with 25 degree FOV (Field of View) consists of three aspheric germanium lenses and fabricated by KBSI using a Freeform 700 5-axis ultra precision machine. Surface roughness and form accuracy of the fabricated germanium aspheric lens were measured by using NT 2000 and UA3P and the measurement results are Ra 1.35㎚ and P-V 0.38㎛.