中国科学院机构知识库网格系统: 检索

Analysis and Design of Infrared Search and Track System with Afocal Zoom Telescope 期刊论文 OAI收割
APPLIED SCIENCES-BASEL, 2023, 卷号: 13, 期号: 24
作者: Qu, Rui; Zhang, Hongwei; Yang, Lei; Chen, Weining

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收藏 | 浏览/下载：13/0 | 提交时间：2024/02/23

infrared search and track lens design optical system optoelectronic system

Near infrared step-zoom doublet lens based on dielectric metasurfaces 期刊论文 OAI收割
JOURNAL OF OPTICS, 2018, 卷号: 20, 期号: 7
作者: Li, Feifei; Liu, Hongjun; Huang, Nan; Wang, Zhaolu; Liu, HJ (reprint author), Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China.

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收藏 | 浏览/下载：40/0 | 提交时间：2018/07/09

Metasurfaces Zoom Lens Pancharatnam-berry Phase Near Infrared Dielectric

A catadioptric infrared dual band optically passive athermal optical system 期刊论文 OAI收割
OPTICAL REVIEW, 2017, 卷号: 24, 期号: 3, 页码: 325-333
作者: Bai, Yu; Xing, Tingwen; Jiang, Yadong

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收藏 | 浏览/下载：29/0 | 提交时间：2018/11/20

Optical design Catadioptric lens Infrared dual band

A wide-FoV athermalized infrared imaging system with a two-element lens 期刊论文 OAI收割
Infrared Physics and Technology, 2017, 卷号: 87, 页码: 11-21
作者: Shi ZL(史泽林); Zhao YH(赵耀宏); Liu HZ(刘海峥); Liu, Li; Feng B(冯斌)

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收藏 | 浏览/下载：33/0 | 提交时间：2017/11/15

Infrared imaging Wide field of view Athermalization Two-element lens

Advances in Infrared Spectrum Zoom Imaging System Research 期刊论文 OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 卷号: 34, 期号: 12, 页码: 3419-3423
作者: Bai Yu; Xing Ting-wen; Jiang Ya-dong

收藏 | 浏览/下载：130/0 | 提交时间：2015/07/10

Infrared spectrum Zoom lens Detectors Dual band Dual F/number

Design of midwave infrared athermalization optical system with a large focal plane array 期刊论文 OAI收割
optik, 2014, 卷号: 125, 期号: 13, 页码: 3085-3087
作者: Shen, ManDe; Li, Cheng

收藏 | 浏览/下载：41/0 | 提交时间：2015/03/26

Optical design Infrared optical system Infrared lens

Thermal difference analysis and athermalization design of infrared optical system (EI CONFERENCE) 会议论文 OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

When infrared optical system works in a large temperature range the thermal effect of optical lens and optical tube will produce image plane shift and lead to imaging quality deterioration. In order to eliminate the thermal aberration the athermalization design principles of infrared optical system were introduced and some commonly used methods of thermal difference compensation were described. Proceeding from single lens the thermal difference caused by temperature changing was analyzed and the relationship between temperature and focus shift was obtained. Considering optical tube thermal expansion a set of equations to estimate the thermal difference of lens group was given. Finally an infrared optical imaging system that can work under the temperature range of -40C to 60C was design according to athermal technique in which a new mechanical passive temperature compensation was proposed. Through simulation the athermalization design could make imaging plane shift the smallest. The simulation results coincided with the theoretical formula and the design had reference value in engineering. 2010 Copyright SPIE - The International Society for Optical Engineering.

Development and radiance calibration of three-waveband camera (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China
作者: Wang J.; Liu Y.; Liu Y.; Sun Q.; Liu Y.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

An imaging system with three-waveband sharing one lens and an area CCD was developed. By rotating different filters into the beam path the required waveband was selected. The optical system which can image in ultraviolet visible and near infrared region was designed and the signal collecting system was integrated. The optical design and system integration have some advantages such as low cost small size and light in weight. To obtain a high imaging quality the radiation calibration is carried out in order to establish the relation between the average grey level of output image and the input radiance from the integrating sphere. According to the calibration data in experiments the radiation dynamic range and the best working point of the system are determined. The experiment result shows that the dynamic range of the image system is maximal when the exposure time is 8ms in ultraviolet 0.5ms in visible and 0.125ms in near infrared region. 2010 IEEE.

Compressed infrared mirror-lens system design (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China
作者: Jiang H.

收藏 | 浏览/下载：10/0 | 提交时间：2013/03/25

In the special optical system such as the infrared optical system the compressed construction and mini module is necessary. In this paper a kind of compressed infrared lens design is proposed. The total length and focus length ratio is no more than 0.6 and this type system is accessible of temperature the key step in this design is how to make the system actable. The parasitic light is also analyzed. The couple efficient of cool stop is 100%.

Design of dual-FOV refractive/diffractive LWIR optical system (EI CONFERENCE) 会议论文 OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者: Wang L.-J.; Zhang J.-P.; Wang L.-J.; Zhang X.; Zhang X.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

An infrared-optical zoom system using binary element is proposed in this paper. The two main advantages of the zoom system introducing here are: bigger F-number and lower cost. The primary optical properties are: F/#=1 Second Others zoom ratio =1:4 binary element is used to correct the chromatical aberration by taking the advantage of negative dispersion characteristics and the cost of the system is lower than that of conventional ones with Zinc Selenide (Znse) material at the same level. In the binary element is rotational symmetric with one step which is easy to fabricate in order to balance 5th spherical aberration and dual field are 26.6 and 5.6respectively. Wider field of view is used for search and the smaller one is used for imaging details. This system uses un-cooled infrared detector with 320240 pixels and 45m pixel size. The F-number matches the sensitivity range of the detector array. Three aspects are considered during design process to make the system more satisfactory and more achievable. First 5th coma aberration and 5th astigmatic aberration the manner of zoom is accomplished by exchanging tow lenses into the smaller field of view system layout. The lens exchange manner faces the requirement of simple system structure and good image quality in both focal points. It can also make the system more feasible in the alignment process than mechanical-zooming manner and optical-zooming manner high-order asphere surfaces with 2th order to 10 th order are also hired in the system. Asphere surface is useful in compressing the system and improving optical system transmittance. This kind asphere surface is on industrial level featuring low cost and easy to fabricate. It is shown that good image quality can achieved by implementing five Germanium lenses and the transmittance of system is 72%. All aberrations are diffraction-limited both spherical aberration and astigmatic aberration are corrected. When the field of view(FOV) is 26.6 and the focal length is 152mm MTF at Nyquist frequency(11lp/mm) is great than 0.7. The spherical aberration is -0.0073. The coma aberration is 0.0978 and the astigmatic aberration is -0.013. When the field of view(FOV) is 5.6 and the focal length is 38mm MTF at Nyquist frequency is great than 0.8 with spherical aberration -0.0046 the coma aberration 0.055 and astigmatic aberration 0.034.