vignetting

The study of non vignetting receiving features of optical system for electro optic detecting

光电探测光学系统无晕接收特性的研究

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Using dual galvanometer optical scanning head as the reflecting type optic fiber confocal scanning microscope's scanning outfit can achieve the fast scanning to plane image, but there exists distortion and vignetting.

以双振镜光学扫描头作为反射式光纤共焦扫描显微镜的平面扫描机构可以实现对平面图像的快速扫描，但存在着畸变和渐晕问题。

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Test of stray light coeffcient vignetting coeffcient and image surface illumination uniformity of optical system with large aperture and long focal length

大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等参数的测试

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Some Influencing imaging quality factors of this inspector are analyzed from theory to experiment, and corresponding calibration methods are put forward, including CCD dark current nonuniformity, CCD photon response nonuniformity, vignetting effect of optical system, converting screen nonuniformity of response to X-ray radiation.

分析了内视仪中影响成像质量的各个因素的特性，提出了相应的校正方法。包括CCD暗电流不一致性，CCD光响应不一致性，光学系统渐晕，转换屏对射线响应不一致性。

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Concerning the Vignetting Coefficients in the Optimization Design of Zoom Lenses

关于变焦系统优化过程中渐晕系数问题的讨论

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Meanwhile a new method to compute the vignetting coefficients has been given.

文章同时给出了计算渐晕系数的新方法。

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Research on vignetting in thermal imaging system

红外系统中渐晕的研究

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Vignetting is created either in camera using vignetting hoods or in darkroom by burning or dodging the edges of the image.

虚光照可以通过虚光罩创造出来，或是在暗室里通过烘烤或挡光图片的边缘。

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They are also pretty much free of any colour aberrations and vignetting around the edges of the image.

他们也几乎无任何颜色畸变和散色或是带色边。

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The brightness and contrast of scenery which are observed by thermal imager are always very low, so the effect of vignetting on the performance of thermal imager is high.

热像仪观察的景物亮度或对比度通常很低，所以渐晕对热像仪性能的影响显得比较严重。

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However, you don't expect weak quality of the maximum relative aperture, high level of chromatic aberration, significant coma and noticeable astigmatism along with huge vignetting.

但是，您不希望弱质的最大相对孔径，色差，散光和显着的重大昏迷高水平随着巨大的暗角。

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Vignetting test of2nd camera fixed, VGA sensor stability.

改进了前置摄像头的VGA传感器稳定性。

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Vignetting Correction Method of Image Based on Gaussian Quadrics Fitting

基于高斯曲面拟合的影像渐晕复原方法

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Vignetting refers to the lightening or darkening of the edges of an image.

虚光照是指增亮或是调暗图片的边缘。

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The pernicious effects of vignetting spot on the coaxial speckle inference fringes are analysed and a method for eliminating the vignetting spot is given.

本文对同轴散斑干涉条纹渐晕斑的不良影响进行了分析。并提出了消除渐晕斑的方法，进行了比较实验。

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An approach to the method of vignetting determination

定晕方法探讨

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