File:EB1911 Vision - Spherical Aberration.jpg
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EB1911_Vision_-_Spherical_Aberration.jpg (697 × 412 pixels, file size: 84 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:36, 15 September 2021 | 697 × 412 (84 KB) | Bob Burkhardt | {{Information |description = {{en|1=Aberration of Sphericity.—Suppose, as in the figure, M A K to be a refractive surface on which parallel rays from L to S impinge, it will be seen that those rays passing near the circumference are brought to a focus at F¹, and those passing near the centre at F²—intermediate rays being focused at N. Thus on the portion of the axis between F¹ and F² there will be a series of focal points, and the effect will be a blurred and bent image.}} |date = {{Da... |
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