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
-
Alternative Author(s)
- 오은송; 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
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.