Development of an Off-Axis TMA Telescope for Coastal Water Remote Sensing SCIE SCOPUS KCI

Cited 2 time in WEB OF SCIENCE Cited 3 time in Scopus
Title
Development of an Off-Axis TMA Telescope for Coastal Water Remote Sensing
Author(s)
Jeon, Min-Woo; Hyun, Sang-Won; Bae, Ji-Yong; Jeong, Byeong-Joon; Oh, Eun-Song; Kang, Hyuk-Mo; Park, Young-Je; Park, Chan-Pil; Kim, Geon-Hee
KIOST Author(s)
Park, Young Je(박영제)
Publication Year
2016-05
Abstract
A proto-model of an off-axis reflective fore-optics in a new hyperspectral sensor onboard a small unmanned aerial vehicle (UAV) is developed for low-altitude coastal remote sensing. In spite of the substantial advantages of off-axis optics over refractive or on-axis reflective optics, it is difficult to fabricate and align the mirrors in off-axis systems because of their asymmetric configurations. The fore-optics is designed by Korea Institute of Ocean Science & Technology (KIOST) as a three-mirror system including aspheric primary and secondary mirrors, with an entrance pupil diameter of 70 mm and F-ratio of 5.0. The off-axis mirror is fabricated by a single point diamond turning machine (SPDTM) with a form accuracy of 89.3 nm (RMS) and surface roughness of 7.2 nm (Ra). Coarse alignment of this three-mirror off-axis optical system is accomplished by using a designated base plate and a coordinate measuring machine. The optical performance is tested using the point spread function of the returned collimated beam of a Fizeau interferometer.
ISSN
2234-7593
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2196
DOI
10.1007/s12541-016-0084-y
Bibliographic Citation
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, v.17, no.5, pp.685 - 689, 2016
Publisher
KOREAN SOC PRECISION ENG
Keywords
Off-axis optics; Ultra-precision machining; TMA telescope; Remote sensing
Type
Article
Language
English
Document Type
Article
Publisher
KOREAN SOC PRECISION ENG
Related Researcher
Research Interests

Ocean Color Remote Sensing,Satellite Applications,Ocean color Algorithm,해양원격탐사,위성활용,해색 알고리즘

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