图像四周暗角
光学
色差
衍射
色阶
物理
共焦
摄影术
光谱成像
镜头(地质)
作者
Matthias Hillenbrand,Beate Dr.-Ing. Mitschunas,Florian H. H. Brill,Adrian Grewe,Stefan Sinzinger
出处
期刊:Applied optics
[The Optical Society]
日期:2014-11-03
卷期号:53 (32): 7634-7634
被引量:29
摘要
We present signal-generation models for chromatic confocal imaging systems with illumination and detection pinholes of finite size: a collinear model that considers neither aberrations nor diffraction effects, a geometrical model that accounts for aberrations, and a wave optical model covering both aberrations and diffraction effects. These models are aimed at describing the spectral response of multipoint sensor systems with field-dependent aberrations and vignetting effects. They are suitable for single- and double-pass systems with either diffusely or specularly reflecting surfaces under test. We show experimental results to verify our models.
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