机构

• 长春光学精密机械与物... [2]
• 南京天文光学技术研究... [1]

采集方式

• OAI收割 [3]

_filter

_filter

_filter

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Optical design for SiTian project 会议论文  OAI收割 Online Only, 2022-12-20 作者:  Chen C(陈超);  Li ZY(李正阳);  Han ZJ(韩子健);  Yuan XY(袁祥岩)   |  收藏  |  浏览/下载：36/0  |  提交时间：2023/03/22 Wide FOV optical design  Optical telescopes  Time-domain Astronomy   Design and fabrication of imaging optical systems with freeform surfaces (EI CONFERENCE) 会议论文  OAI收割 Current Developments in Lens Design and Optical Engineering XIII, August 13, 2012 - August 15, 2012, San Diego, CA, United states 作者:  Zhang F.;  Wang L.;  Wang L.;  Wang L.;  He X. 收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25 Freeform surfaces provide more degrees of freedom for design of optical systems  and enhance the ability of compensation and correction aberrations. Freeform surfaces are of advantage to balance the unsymmetrical aberrations  especially for the wide-field off-axis optical systems. This paper focus on an off-axis reflective optical system  which focal length is 550mm  F# is 6.5 and field of view (FOV) is 76. The system adopts some freeform surfaces. We discuss the problems we noticed in processes of design  manufacture  measurement and alignment  and the solutions. At last  the periodical research result and the expected performance are given. 2012 SPIE.   Optical system design with high resolution and large field of view for the remote sensor (EI CONFERENCE) 会议论文  OAI收割 Chang J.; Weng Z.-C.; Wang Y.-T.; Cheng D.-W.; Jiang H.-L. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 In this paper  we are presenting a design method and its results for a space optical system with high resolution and wide field of view. This optical system can be used both in infrared and visible configurations. The designing of this system is based on an on-axis three-mirror anastigmatic (TMA) system. Here the on-axis concept allows wide field of view (FOV) enabling a diversity of designs available for the Multi-Object Spectrometer instruments optimized for low scattered and low emissive light. The available FOVs are upto 1 in both spectrum ranges  whereas the available aperture range is F/15 - F/10. The final optical system is a three-mirror telescope with two on-axis and one off-axis segment and its resolution is 0.3m or even lower. The distinguished feature of this design is that it maintains diffraction-limited image at wide wavelengths. The technological developments in the field of computer generated shaping of large-sized optical surface details with diffraction-limited imagery have opened new avenues towards the designing techniques. Such techniques permit us to expand these technological opportunities to fabricate the aspherical off-axis mirrors for a complex configuration.