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Industrial lenses may exhibit various types of aberrations, which can affect the quality and clarity of the images they produce. Some common aberrations include:
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Chromatic Aberration: This occurs when different wavelengths of light are focused at different points, resulting in color fringes around objects, especially at the edges of the image.
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Spherical Aberration: Spherical aberration causes light rays passing through different parts of the lens to converge at different focal points, leading to a blurred or distorted image.
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Comatic Aberration (Coma): Coma causes off-axis light rays to be focused at different distances from the lens center, resulting in comet-like aberrations, especially noticeable in the corners of the image.
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Astigmatism: Astigmatism occurs when light rays in different planes have different focal lengths, causing point sources to appear distorted or elongated in one direction.
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Field Curvature: Field curvature causes the plane of focus to be curved rather than flat, resulting in objects at the edges of the image being out of focus even when the center is sharp.
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Distortion: Distortion causes straight lines in the scene to appear curved or bent in the image, either barrel distortion (lines bow outwards) or pincushion distortion (lines bow inwards).
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Vignetting: Vignetting refers to the reduction in brightness or intensity towards the edges of the image, resulting in darkened corners or edges.
Understanding and minimizing these aberrations is essential in the design and optimization of industrial lenses to ensure high-quality imaging performance in various applications.
FALenses Technology specializes in providing machine vision core hardware. You can go to the official website of FALenses Technology at https://www.falenses.com/ for more information.