Optical design and performance of MIRIS near-infrared camera

Ree, Chang H.; Park, Sung‐Joon; Moon, Byung-Kwon; Cha, Sang-Mok; Park, Young-Sik; Jeong, Wooju; Lee, Dae-Hee; Nam, Uk-Won; Park, Jang-Hyun; Ka, Nung Hyun; Lee, Mi Hyun; Pyo, Jeonghyun; Lee, Duk-Hang; Rhee, Seung-Woo; Park, Jong-Oh; Lee, Hyung Mok; Matsumoto, Toshio; Yang, Sidong; Han, Wonyong

doi:10.1117/12.856358

Cited by 6 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…All lenses were also processed with an antireflection coating to increase the transmission in the wavelength band from 0.8 to 2:0 μm. Transmission curves of AR-coated lens materials were shown to be more than 98%, as described by Ree et al (2010) with little difference at cryogenic and room temperatures. A mechanical taping test and thermal cycling test were performed and passed with the coating test pieces, which were treated in the same coating process with the flight model.…”

Section: Optomechanical Designmentioning

confidence: 88%

“…For two years, MIRIS will perform astronomical observations in nearinfrared wavelengths of 0:9 ∼ 2 μm using a 256 × 256 PICNIC sensor, providing a 3:67 × 3:67°field of view with a pixel scale of 51.6″. The earlier system design of MIRIS during the development stage was described by Han et al (2010), Moon et al (2010), and Ree et al (2010).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

MIRIS: A Compact Wide-field Infrared Space Telescope

Han¹,

Lee²,

Jeong³

et al. 2014

Publications of the Astronomical Society of the Pacific

Self Cite

View full text Add to dashboard Cite

A compact infrared space telescope called MIRIS (Multi-purpose Infra-Red Imaging System) was developed by the Korea Astronomy and Space Science Institute (KASI), and launched onboard the Science and Technology Satellite-3 of Korea (STSAT-3) in 2013 November. The main mission of MIRIS is the Paschen-α emission line survey along the Galactic plane and the cosmic infrared background (CIB) observation, particularly around the north ecliptic pole region. For these missions, a wide field of view (3:67 × 3:67°) with an angular resolution of 51.6″ and wavelength coverage from 0:9 ∼ 2:0 μm have been adopted for MIRIS, having optical components consisting of a 80 mm main lens and four other lenses with F/2 focal ratio optics. The opto-mechanical system was carefully designed to minimize any effects from shock during the launch process and thermal variation. Also, the telescope was designed to use a passive cooling technique to maintain the temperature around 200 K in order to reduce thermal noise. A micro Stirling cooler was used to cool down the Teledyne PICNIC infrared array to 90 K, which was equipped in a dewar with four filters for infrared passbands of I, H, and Paschen-α and a dual-band continuum line filter. MIRIS system was integrated into the STSAT-3 as its primary payload and successfully passed required tests in the laboratory, such as thermal-vacuum, vibration, and shock tests. MIRIS is now operating in sun synchronous orbits for initial tests and has observed its first images successfully.

show abstract

Section: Optomechanical Designmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

MIRIS: A Compact Wide-field Infrared Space Telescope

Han¹,

Lee²,

Jeong³

et al. 2014

Publications of the Astronomical Society of the Pacific

Self Cite

View full text Add to dashboard Cite

show abstract

“…과학기술위성 3호의 주탑재체는 한국천문연구원 천문우 주기술개발센터에서 개발하고 있는 다목적 적외선 영상 시스템 MIRIS(Multi-purpose Infra-Red Imaging System)이 다 Ree et al, 2010;Moon et al, 2010;문봉곤 등, 2008;문봉곤 등, 2009) …”

Section: 서론unclassified

Research for Robustness of the Miris Optical Components in the Shock Environment Test

Moon¹,

Kanai²,

Park³

et al. 2012

Publications of The Korean Astronomical Society

Self Cite

View full text Add to dashboard Cite

MIRIS, Multi-purpose Infra-Red Imaging System, is the main payload of STSAT-3 (Korea Science & Technology Satellite 3), which will be launched in the end of 2012 (the exact date to be determined) by a Russian Dnepr rocket. MIRIS consists of two camera systems, SOC (Space Observation Camera) and EOC (Earth Observation Camera). During a shock test for the flight model stability in the launching environment, some lenses of SOC EQM (Engineering Qualification Model) were broken. In order to resolve the lens failure, analyses for cause were performed with visual inspections for lenses and opto-mechanical parts. After modifications of SOC opto-mechanical parts, the shock test was performed again and passed. In this paper, we introduce the solution for lens safety and report the test results.

show abstract

“…67 FoV in the wavelength coverage from 0.9 to 2.0 μm. It observes Paschen-α emission lines along the Galactic plane and the cosmic infrared background (Ree et al 2010;Han et al 2014). However, observable wavelength bands are highly limited due to availability of lens materials.…”

Section: Introductionmentioning

confidence: 99%

Development of Linear Astigmatism Free—Three Mirror System (LAF-TMS)

Park

Chang

Lim

et al. 2020

PASP

View full text Add to dashboard Cite

We present the development of Linear Astigmatism Free -Three Mirror System (LAF-TMS). This is a prototype of an off-axis telescope that enables very wide field of view (FoV) infrared satellites that can observe Paschen-α emission, zodiacal light, integrated star light, and other infrared sources. It has the entrance pupil diameter of 150 mm, the focal length of 500 mm, and the FoV of 5.5°× 4.1°. LAF-TMS is an obscuration-free off-axis system with minimal out-of-field baffling and no optical support structure diffraction. This optical design is analytically optimized to remove linear astigmatism and to reduce high-order aberrations. Sensitivity analysis and Monte-Carlo simulation reveal that tilt errors are the most sensitive alignment parameters that allow ∼1 . Optomechanical structure accurately mounts aluminum mirrors, and withstands satellite-level vibration environments. LAF-TMS shows arXiv:2002.05361v1 [astro-ph.IM] 13 Feb 2020 Development of LAF-TMS 2 optical performance with 37 µm FWHM of the point source image satisfying Nyquist sampling requirements for typical 18 µm pixel Infrared array detectors. The surface figure errors of mirrors and scattered light from the tertiary mirror with 4.9 nm surface micro roughness may affect the measured point spread function (PSF). Optical tests successfully demonstrate constant optical performance over wide FoV, indicating that LAF-TMS suppresses linear astigmatism and high-order aberrations.

show abstract

Optical design and performance of MIRIS near-infrared camera

Cited by 6 publications

References 0 publications

MIRIS: A Compact Wide-field Infrared Space Telescope

MIRIS: A Compact Wide-field Infrared Space Telescope

Research for Robustness of the Miris Optical Components in the Shock Environment Test

Development of Linear Astigmatism Free—Three Mirror System (LAF-TMS)

Contact Info

Product

Resources

About