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波前像差
相关语句
  wavefront aberration
    Micro optics adaptive unit technique is a kind of intelligent MOEMS technique, which can adjust wave front aberration and get clear image.
    微光学自适应单元技术是基于MOEMS工艺的智能化微光学技术,它能实时校正波前像差,保持清晰的成像。
短句来源
    The new method is based on starting from the Kirchhoff diffraction integral and introducing the quasi wave front aberration (4) or (21), and using the exit pupil coordinates in the Fresnel approximation to derive the amplidute distribution of the image of a object point, and no requiring arrangement matched for the illumination light.
    从基尔霍夫衍射积分出发,引进准波前像差,并在菲涅尔近似下给出点像振幅分布,对照明光源不作匹配限制,计算公式简明,准相干度( 不同于传统的相干度) 容易计算。
短句来源
    We calculate the spectral and spatial resolution of the spectrometer system. The wave front aberration theory and ray tracing code indicate that the system has good spectral resolution(λ/Δλ)better than 1000 and spatial resolution better than 40μm in the spectrum range of 4—45nm.
    波前像差理论和光线追踪程序得到结果均表明 ,优化设计后的软x射线平场谱仪系统在波长为 4— 4 5nm的光谱范围内具有很好谱分辨能力 (λ Δλ >10 0 0 )和空间分辨能力 (优于 4 0 μm) .
短句来源
    Based on PFWc and AreaMTF metrics,which are objective and quantitative metrics of optical quality of human eyes,the influence of wavefront aberration of single Zernike modes on optical quality is investigated with the W_(RMS) wavefront aberration of 0.05~1.00 μm.
    基于两个人眼光学质量客观评价标准同心相对瞳孔平面(PFWc)和区域调制传递函数(Marea MTF),研究和分析了波前像差均方根值WRMS处于0.05~1.00μm较大范围内泽尼克各项像差对人眼光学质量的影响。
短句来源
  wave front aberration
    Micro optics adaptive unit technique is a kind of intelligent MOEMS technique, which can adjust wave front aberration and get clear image.
    微光学自适应单元技术是基于MOEMS工艺的智能化微光学技术,它能实时校正波前像差,保持清晰的成像。
短句来源
    The new method is based on starting from the Kirchhoff diffraction integral and introducing the quasi wave front aberration (4) or (21), and using the exit pupil coordinates in the Fresnel approximation to derive the amplidute distribution of the image of a object point, and no requiring arrangement matched for the illumination light.
    从基尔霍夫衍射积分出发,引进准波前像差,并在菲涅尔近似下给出点像振幅分布,对照明光源不作匹配限制,计算公式简明,准相干度( 不同于传统的相干度) 容易计算。
短句来源
    We calculate the spectral and spatial resolution of the spectrometer system. The wave front aberration theory and ray tracing code indicate that the system has good spectral resolution(λ/Δλ)better than 1000 and spatial resolution better than 40μm in the spectrum range of 4—45nm.
    波前像差理论和光线追踪程序得到结果均表明 ,优化设计后的软x射线平场谱仪系统在波长为 4— 4 5nm的光谱范围内具有很好谱分辨能力 (λ Δλ >10 0 0 )和空间分辨能力 (优于 4 0 μm) .
短句来源
    Based on PFWc and AreaMTF metrics,which are objective and quantitative metrics of optical quality of human eyes,the influence of wavefront aberration of single Zernike modes on optical quality is investigated with the W_(RMS) wavefront aberration of 0.05~1.00 μm.
    基于两个人眼光学质量客观评价标准同心相对瞳孔平面(PFWc)和区域调制传递函数(Marea MTF),研究和分析了波前像差均方根值WRMS处于0.05~1.00μm较大范围内泽尼克各项像差对人眼光学质量的影响。
短句来源
  “波前像差”译为未确定词的双语例句
    The Acquisition of the Aerial Image Modulation with the Wave-Front Aberrations of Human Eye
    基于波前像差的视网膜空间像调制度测定
短句来源
    The influence of aberrations at wide field of view on the optical system of human eyes cannot be neglected.
    大视场波前像差对人眼光学系统的影响不容忽视。
短句来源
    The aberration by the human eye optical structure to affect vision quality are mainly reviewed.
    对于平常人眼,影响视网膜的成像质量主要受波前像差和衍射的综合作用影响。
短句来源
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  wavefront aberration
To characterize the optical performance of the eye the deviation of the wavefront of a foveal image point from its ideal (spherical) shape (wavefront aberration) was determined.
      
The wavefront aberration is represented mathematically in Zernike polynomials.
      
However, the drastic changes of beam spot, beam intensity profile, modulation transfer function curve and wavefront aberration were not observed.
      
Using zoom optics, an additional aspheric lens surface, and a diffractive optical element together, the wavefront aberration and chromatic aberration are effectively reduced in a broad range of cover-layer thicknesses and wavelength variations.
      
Measurement of Wavefront Aberration of Human Eye Using Talbot Image of Two-Dimensional Grating
      
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In this paper, a new formula (18) is given for calculating the optical transfer function with incoherent and partially coherent light. The new method is based on starting from the Kirchhoff diffraction integral and introducing the quasi wave front aberration (4) or (21), and using the exit pupil coordinates in the Fresnel approximation to derive the amplidute distribution of the image of a object point, and no requiring arrangement matched for the illumination light. The piecewise polynomial interpolations...

In this paper, a new formula (18) is given for calculating the optical transfer function with incoherent and partially coherent light. The new method is based on starting from the Kirchhoff diffraction integral and introducing the quasi wave front aberration (4) or (21), and using the exit pupil coordinates in the Fresnel approximation to derive the amplidute distribution of the image of a object point, and no requiring arrangement matched for the illumination light. The piecewise polynomial interpolations is used to calculating the quasi wave front aberration function expressed by the exit pupil coordinates. The method is better than the traditional in theory accuracy and in simplify of calculating the degree of quais coherent, which can be used for computing the anamorphic imaged optical systems.

本文给出在准单色光照明下,部分相干和非相干成像光学传递函数新的计算方法。从基尔霍夫衍射积分出发,引进准波前像差,并在菲涅尔近似下给出点像振幅分布,对照明光源不作匹配限制,计算公式简明,准相干度( 不同于传统的相干度) 容易计算。利用分片多项式插值计算准波前像差,从而可实现变形成像OTF 的计算

Using ray tracing code and optical path function, optimization calculation is carried out on a grazing incidence soft x ray flat field spectrometer with toroidal mirror as prepositive optic system. We calculate the spectral and spatial resolution of the spectrometer system. The wave front aberration theory and ray tracing code indicate that the system has good spectral resolution(λ/Δλ)better than 1000 and spatial resolution better than 40μm in the spectrum range of 4—45nm.

采用光线追踪和光路函数的方法 ,优化设计了具有超环面镜的前置光学系统的掠入射软x射线平场谱仪 ,得到了谱仪的谱分辨和空间分辨本领 .波前像差理论和光线追踪程序得到结果均表明 ,优化设计后的软x射线平场谱仪系统在波长为 4— 4 5nm的光谱范围内具有很好谱分辨能力 (λ Δλ >10 0 0 )和空间分辨能力 (优于 4 0 μm) .

A method of expanding the dynamic range of a Hartmann-Shack (H-S) sensor for measuring the eye′s aberration is proposed.It is a combination of unwrapping algorithm and mask technique,which greatly increases the dynamic range of H-S system. The experimental data shows that it performs well even in the case where the unwrapping method is limited.It also shows that the measurable maximum curvature can be greatly improved compared with the mask technique.When a spherical wavefront incidents,the measurable minimum...

A method of expanding the dynamic range of a Hartmann-Shack (H-S) sensor for measuring the eye′s aberration is proposed.It is a combination of unwrapping algorithm and mask technique,which greatly increases the dynamic range of H-S system. The experimental data shows that it performs well even in the case where the unwrapping method is limited.It also shows that the measurable maximum curvature can be greatly improved compared with the mask technique.When a spherical wavefront incidents,the measurable minimum curvature radius can be reduced from 75 mm to 10 mm by this method,compared with the the mask technique.Actually since it overcomes the limitation of unwrapping algorithm,much higher local curvature can still be measured.

提出了一种扩大人眼波前像差仪测量范围的方法,该法综合了波前重建展开算法和波前探测的模板技术,大幅度扩大了波前测量范围.在待测波前像差超出展开算法测量范围的情况下,此方法仍能对像差正常测量.与模板技术相比,该法大幅扩大了可测的曲率范围.以球面波前入射的实验数据表明,所提出的新方法所能测量的最小曲率半径由模板法的75mm降低到10mm,并且由于本方法突破了展开算法的极限,实际上对局部曲率更高的波前仍可测量.

 
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