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The Formation of an Image by the Refracting Media of the Eye

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The Formation of an Image by the Refracting Media of the Eye.jpg The Retina in Vertical SectionThumbnailsThe External, Middle, and Internal Ear of the Left SideThe Retina in Vertical SectionThumbnailsThe External, Middle, and Internal Ear of the Left SideThe Retina in Vertical SectionThumbnailsThe External, Middle, and Internal Ear of the Left SideThe Retina in Vertical SectionThumbnailsThe External, Middle, and Internal Ear of the Left SideThe Retina in Vertical SectionThumbnailsThe External, Middle, and Internal Ear of the Left Side
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x, The common centre of curvature (nodal point of the several media). Rays which pass through this point are not deflected.
y, The principal focus of the system. All rays which are parallel to the optic axis converge to this point. The image of the point A is formed at a, the spot at which a ray parallel with the optic axis meets an unbent ray—the image of B at b.

Author
The Body at Work
by Alexander Hill
Published 1908
Available from gutenberg.org
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