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长春光学精密机械与物... [2]
光电技术研究所 [2]
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会议论文 [4]
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Optical design of diffractive telescope system based on off-axis three mirror
会议论文
Chengdu, China, June 26, 2018 - June 29, 2018
作者:
He, Chuanwang
;
Huang, Peng
;
Dong, Xiaochun
;
Fan, Bin
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浏览/下载:8/0
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提交时间:2021/05/06
Optical design of diffractive telescope system based on off-axis three mirror
会议论文
Chengdu, PEOPLES R CHINAChengdu, PEOPLES R CHINA, JUN 26-29, 2018JUN 26-29, 2018
作者:
He, Chuanwang
;
Huang, Peng
;
Dong, Xiaochun
;
Fan, Bin
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2019/08/23
Diffractive telescope
Off-axis three mirror
Schupmann
Optical design
Image analysis
Design of reimaging F/1.0 long-wavelength infrared optical system (EI CONFERENCE)
会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
Zhang X.
;
Liu B.
;
Jia H.-G.
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浏览/下载:27/0
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提交时间:2013/03/25
A reimaging F/1.0 long-wavelength infrared optical system is proposed. The design has a flexible opto-mechanical layout. The design process is as follows. Firstly
the catadioptric reimaging system consists of two reflecting mirrors and a relay lenses. Two reflecting mirrors make up of the first imaging system and are therefore free of chromatic aberrations
while low dispersion lenses were used in the reimaging system
so the optical system do not need achromatic design for a high image quality. Then
to correct high-order aberrations resulting from large relative aperture
more parameters need to be used with aspheric or diffractive surfaces due to modern optic technology development. Here
aspheric is selected for easily manufacture. Finally
the design is completed with the help of ZEMAX software. The effective focal length of the objective is 120mm and the field of view (FOV) is 4. The simulated final design shows adequate image quality and the modulation transfer function (MTF) is close to diffraction limit. The effect of the surrounding environmental temperature is analyzed using the concept of thermal defocusing
and the thermal compensation is discussed. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Athermal design of hybrid refractive/harmonic diffractive optical system for far-infrared multi-band (EI CONFERENCE)
会议论文
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
Liu Y.
;
Sun Q.
;
Lu Z.
;
Yue J.
;
Zhang H.
;
Zhu R.
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浏览/下载:21/0
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提交时间:2013/03/25
In order to get enough information about the target
avoid big chromatic aberration as a result of wide spectrum and the complexity of optical system and adapt different special environment temperature
a hybrid refractive/harmonic diffractive optical system in far-infrared multi-band is described in the paper. This diffractive optical system has been designed an athermalized multi-band imaging system with harmonic diffractive element in 15-50m spectrum
based on larger 1dispersion capability and particular thermal dispersive power of harmonic diffractive element. Then
at the temperature range from 0C to 40C
this design can simultaneously meet with all requirements of the imaging system in five harmonic wave bands
including15.8-16.2m
18.5-20m
23-25m
30.5-33.5m and 46-50m. In each harmonic wave band
the magnification changes as a function of wavelength
which creates image registration error. To compensate this shortcoming
a zoom optical system is designed with three lenses by means of optical two- component method. The design results show that the hybrid refractive/harmonic diffractive optical system can realize athermalized and achromatic design
and the zoom optical system makes half image height at 3.53mm in every harmonic wave band and still realizes aberration compensation action. In the five harmonic wave bands
each optical transfer function approaches the diffraction limit at ambient temperature range of 0C to 40C. Finally
the system realizes the requirements of portability
mini-type and ease for fabrication. 2009 SPIE.
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