Design and analysis of segmented-mirror primary mirror system

Wang, Chenchen; Zhang, Lei; Xie, Yuan; Wei, Limin; Tian, Xiaobo

doi:10.1016/j.ijleo.2021.167165

Cited by 1 publication

(1 citation statement)

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“…The Nyquist frequency is 22 c mm −1 (cycle per mm) and the dynamic depth of field is 8/ 10/12 bit. In addition, the spectral range is from 290 to 1100 nm, and the electronic shutter is 1.1 s. m Since the Nyquist frequency of the camera NAC ACS-1 M60 is 22 c mm −1 , the 22 c mm −1 system transfer function is investigated for the MTF curve [13][14][15]. The MTF of the designed optical system for each band are analyzed with ZEMAX and shown in figures 8-10.…”

Section: Image Quality Analysismentioning

confidence: 99%

Development of multi-band and high-speed visible endoscope diagnostic on EAST with catadioptric optics

Han

Yang²,

Yan³

et al. 2023

Plasma Sci. Technol.

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A new multi-band and high-speed endoscope diagnostic for the observation of visible light has been successfully developed on the Experimental Advanced Superconducting Tokamak (EAST). The mirror with an aperture is designed at the head of the optical system. Based on two dichroic mirrors, the system is divided into three imaging mirror groups with different bands, i.e., B (380~500 nm), G (500~580 nm) and R (580~750 nm) bands. And its focal length is 16 mm with a relatively large aperture of D/f=1:4. The spatial resolution is less than 5 mm near the object distance of 1750mm with the camera NAC ACS-1 M60. As an important diagnostic, this optical system will be used to contrastively study both the spatial distribution and time evolution of different impurities in the same field of view. The experimental results confirm that it can be applied to the recognition of plasma boundary and related physical research.

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Section: Image Quality Analysismentioning

confidence: 99%