本文選題：波前編碼 + 光學像差��； 參考：《哈爾濱工業(yè)大學》2017年博士論文

【摘要】：光學成像系統(tǒng)設計目標是獲取更為真實的景物信息,高品質(zhì)成像系統(tǒng)可將景物清晰地成像于共軛像面,物點在像面彌散滿足于光電探測器參數(shù)要求。然而,光學成像系統(tǒng)設計受光學像差限制,性能優(yōu)越的系統(tǒng)設計勢必增加系統(tǒng)的復雜程度,也將降低光學成像系統(tǒng)的可靠性�；诖�,本文開展了基于波前編碼的像差鈍化技術(shù)研究,并將像差鈍化技術(shù)應用于典型像差光學系統(tǒng),以期能為現(xiàn)代光學系統(tǒng)設計開辟新徑,也為波前編碼技術(shù)的發(fā)展做出一定的貢獻。本文的主要研究內(nèi)容為:研究了波前編碼系統(tǒng)對初級像差的鈍化作用。分別開展了對初級球差、初級像散和初級彗差的像差鈍化研究,基于穩(wěn)相法,給出了含離軸像差的波前編碼系統(tǒng)光學傳遞函數(shù)(OTF)的表達式,研究了不同邊界條件下對離軸像差的鈍化特性;基于光線像差理論,獲取了含球差的波前編碼系統(tǒng)光線像差分布,依據(jù)光線像差分布,對球差鈍化特性進行了研究。在幾種像差特性條件下,驗證了波前編碼系統(tǒng)對初級像差的鈍化作用�；诓ㄇ熬幋a像差鈍化理論,開展了共形整流罩目標視場非對稱光學像差鈍化技術(shù)研究。研究了共形整流罩像差特性,并對共形整流罩傳統(tǒng)校正方法進行了分析。利用固定校正器實現(xiàn)了共形整流罩像差的初始校正,并對剩余像差進行了分析。在共形整流罩像差初步平滑的基礎上,以規(guī)格化三次相位掩膜板為例,對其參數(shù)優(yōu)化后進行了共形整流罩剩余像差平滑。在空間域和空間頻域研究了波前編碼對共形整流罩像差鈍化特性,并通過圖像仿真方法對結(jié)果進行了驗證。以長徑比為1.5的共形整流罩,工作波段為3.7-4.8μm,目標視場為±30°的共形光學系統(tǒng)為設計實例,驗證了波前編碼技術(shù)對共形整流罩隨目標視場產(chǎn)生的非對稱像差的鈍化作用。開展了波前編碼對光學系統(tǒng)隨視場變化的光學像差鈍化技術(shù)研究。利用光線像差理論,研究了單透鏡隨視場變化的軸外像差特性�；诓ㄇ熬幋a技術(shù),并以兩片式紅外光學系統(tǒng)為例,進行了隨視場變化的像差特性分析及像差鈍化系統(tǒng)設計。研究了球面兩片式結(jié)構(gòu)光學系統(tǒng)的像差分布,并在空間域和空間頻域?qū)ζ涑上裥阅苓M行了評價�；诓ㄇ熬幋a像差鈍化理論,設計并優(yōu)化了用于視場像差鈍化的最優(yōu)化相位掩膜板輪廓,對鈍化后的系統(tǒng)像差特性進行了分析。分別對全視場為10°和14°的兩片式紅外光學系統(tǒng)進行了像差鈍化,在鈍化特性分析的基礎上,以0°視場點擴散函數(shù)(PSF)作為退化模型,通過圖像仿真方法證明了波前編碼技術(shù)對視場像差的鈍化作用。
[Abstract]:The design goal of optical imaging system is to obtain more real scene information. The high quality imaging system can clearly image the scene on the conjugate image plane, and the dispersion of object points on the image surface can meet the requirements of photodetector parameters. However, the design of optical imaging system is limited by optical aberration. The system design with superior performance will increase the complexity of the system and reduce the reliability of the optical imaging system. In this paper, the aberration passivation technology based on wavefront coding is studied, and the aberration passivation technique is applied to typical aberration optical system, which can open up a new path for the design of modern optical system. It also contributes to the development of wave-front coding technology. The main contents of this paper are as follows: the passive effect of wavefront coding system on primary aberration is studied. The aberration passivation of primary spherical aberration, primary astigmatism and primary coma is studied respectively. Based on the stationary phase method, the expression of optical transfer function (OTFF) of wavefront coding system with off-axis aberration is given. The passivation characteristics of off-axis aberration under different boundary conditions are studied. Based on ray aberration theory, the aberration distribution of wavefront coding system with spherical aberration is obtained, and the passivation characteristics of spherical aberration are studied according to the aberration distribution. Under several aberration characteristics, the passivation effect of the wavefront coding system on the primary aberration is verified. Based on the wavefront coded aberration passivation theory, the asymmetric optical aberration technique for conformal fairing is studied. The aberration characteristics of conformal fairing are studied, and the traditional correction methods of conformal fairing are analyzed. The initial correction of conformal fairing aberration is realized by using a fixed corrector, and the residual aberration is analyzed. Based on the preliminary smoothing of conformal fairing aberration, the residual aberration smoothing of conformal fairing mask is carried out after the optimization of its parameters, taking the cubic phase mask as an example. The aberration passivation characteristics of wavefront coding for conformal fairing are studied in spatial domain and spatial frequency domain, and the results are verified by image simulation. A conformal optical system with a working band of 3.7-4.8 渭 m and a target field of 鹵30 擄is used as an example to verify the passivation effect of the wavefront coding technique on the asymmetric aberration of the conformal fairing caused by the target field of view. The optical aberration passivation technique of optical system with field of view is studied. Based on the theory of ray aberration, the axial aberration characteristics of a single lens with the variation of the field of view are studied. Based on the wave-front coding technique and taking the two-chip infrared optical system as an example, the aberration characteristics and aberration passivation system design with the variation of the field of view are analyzed. The aberration distribution of spherical two-chip optical system is studied and its imaging performance is evaluated in spatial domain and spatial frequency domain. Based on the wavefront coded aberration passivation theory, the optimal profile of phase mask plate for field of view aberration passivation is designed and optimized. The aberration characteristics of the passivated system are analyzed. Two pieces of infrared optical systems with full field of view of 10 擄and 14 擄were passivated by aberration. Based on the analysis of passivation characteristics, the 0 擄field of view point diffusion function (PSF) was used as the degenerate model. The effect of wavefront coding on field aberration is proved by image simulation.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：博士
【學位授予年份】：2017
【分類號】：TP391.41

【相似文獻】

相關(guān)期刊論文 前10條

1 張志祥 ,徐德衍;光學成像幫助監(jiān)控新生嬰兒[J];激光與光電子學進展;2002年08期

2 ;生物光學成像�？魑耐ㄖ猍J];激光生物學報;2002年06期

3 劉凱;田捷;楊薇;秦承虎;徐敏;劉丹;;Monte Carlo方法在擴散光學成像仿真中的應用[J];軟件學報;2009年05期

4 駱R，

本文編號：1934784