Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system
文献类型：期刊论文
| 作者 | Feng B(冯斌) ; Shi ZL(史泽林); Zhang CS(张程硕); Xu BS(徐保树); Zhang, Xiaodong
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| 刊名 | Optics Communications
 |
| 出版日期 | 2016 |
| 卷号 | 367页码:35-43 |
| 关键词 | Analytical model Wavefront coding PSF consistency Infrared imaging Athermalization |
| ISSN号 | 0030-4018 |
| 产权排序 | 1 |
| 通讯作者 | 冯斌 |
| 中文摘要 | The point spread function (PSF) inconsistency caused by temperature variation leads to artifacts in decoded images of a wavefront coding infrared imaging system. Therefore, this paper proposes an analytical model for the effect of temperature variation on the PSF consistency. In the proposed model, a formula for the thermal deformation of an optical phase mask is derived. This formula indicates that a cubic optical phase mask (CPM) is still cubic after thermal deformation. A proposed equivalent cubic phase mask (E-CPM) is a virtual and room-temperature lens which characterizes the optical effect of temperature variation on the CPM. Additionally, a calculating method for PSF consistency after temperature variation is presented. Numerical simulation illustrates the validity of the proposed model and some significant conclusions are drawn. Given the form parameter, the PSF consistency achieved by a Ge-material CPM is better than the PSF consistency by a ZnSe-material CPM. The effect of the optical phase mask on PSF inconsistency is much slighter than that of the auxiliary lens group. A large form parameter of the CPM will introduce large defocus-insensitive aberrations, which improves the PSF consistency but degrades the room-temperature MTF. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Optics |
| 研究领域[WOS] | Optics |
| 关键词[WOS] | PHASE MASK ; OPTICAL-SYSTEMS ; LENS ; ATHERMALIZATION ; COMPENSATION |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370127300006 |
| 源URL | [http://ir.sia.cn/handle/173321/17646]  |
| 专题 | 沈阳自动化研究所_光电信息技术研究室 |
| 推荐引用方式 GB/T 7714 | Feng B,Shi ZL,Zhang CS,et al. Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system[J]. Optics Communications,2016,367:35-43. |
| APA | Feng B,Shi ZL,Zhang CS,Xu BS,&Zhang, Xiaodong.(2016).Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system.Optics Communications,367,35-43. |
| MLA | Feng B,et al."Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system".Optics Communications 367(2016):35-43. |
入库方式： OAI收割
来源：沈阳自动化研究所
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