Optical design and active optics methods in astronomy

GR Lemaitre - Optical Review, 2013 - Springer
Optical designs for astronomy involve implementation of active optics and adaptive optics
from X-ray to the infrared. Developments and results of active optics methods for telescopes …

New bending system using a segmented vacuum chuck for stressed mirror polishing of thin mirrors

P Kang, HS Yang - Current Optics and Photonics, 2017 - opg.optica.org
In the present research, a new bending system using a segmented vacuum chuck for
Stressed Mirror Polishing (SMP) is developed. SMP is a special fabrication method for thin …

Stressed mirror annular polishing for scale-down TMT primary segments

X Li, Z Jiang, X Gong, H Zhang, K Chen… - Advances in Optical …, 2016 - spiedigitallibrary.org
A new type Stressed Mirror Polishing method using annular polishing machine is developed
in NIAOT. It provides good efficiency for the massive production of off-axis segments for the …

Pupil phase discontinuity measurement: comparison of different wavefront sensing concepts

K El Hadi, JF Sauvage, K Dohlen… - … Optics Systems V, 2016 - spiedigitallibrary.org
The Laboratoire d'Astrophysique de Marseille is involved in the preparation of the E-ELT
instrumentation framework: In particular, an ESO-EELT M1 mirror segment (1.5 m) has been …

Active optics: deformation systems compensating for optical aberrations with a minimum number of actuators

M Laslandes, E Hugot, M Ferrari - Modern Technologies in …, 2012 - spiedigitallibrary.org
In this paper, we present two original concepts of deformable mirrors to compensate for first
orders optical aberrations with a minimum number of actuators: one optical mode is …

Active optics: deformable mirrors with a minimum number of actuators

M Laslandes, E Hugot, M Ferrari - arXiv preprint arXiv:1209.2685, 2012 - arxiv.org
We present two concepts of deformable mirror to compensate for first order optical
aberrations. Deformation systems are designed using both elasticity theory and Finite …

[PDF][PDF] 三角机加工大口径离轴抛物面技术

张鑫, 罗霄, 闫力松, 张峰, 张学军 - 红外与激光工程, 2016 - researching.cn
为了实现大口径非球面镜的加工, 设计制作了三角机加工中心, 该加工中心具有三工位设计.
基于该加工中心提出了一套非球面镜加工模型, 每个工位只需利用两个转动轴即可实现大口径非 …

Application progress of stressed mirror continuous polishing technology in the segments fabrication of telescope primary mirror

Z Jiang, X Li, Z Chen, T Cao, K Chen… - Advances in Optical …, 2020 - spiedigitallibrary.org
The primary mirrors of several large ground-based astronomical telescopes currently in the
research or planning phases, such as TMT (Thirty Meter Telescope), ELT (Extremely Large …

Coupling of WFS with a segmented DM “Test of different concepts: SH, Pyramid, Zernike phase sensor”

K El Hadi - Adaptive Optics for Extremely Large Telescopes 4 …, 2015 - escholarship.org
LAM is developing several R&D activities for E-ELT instrumentation, in particular, different
WFS concepts are investigated (Pyramid, ZELDA, a Zernike phase mask sensor, Phase …

Research on key technical issues of contact method for large diameter off-axis aspheric segments

ZB Jiang, XN Li, YJ Liang, B Li… - Advances in Optical …, 2016 - spiedigitallibrary.org
The research works are summarized for Φ1. 1m off-axis aspheric segments which are
scaled-down TMT segments polished by NIAOT using SMAP (Stressed Mirror Annular …