Lens having extended depth of focus, method for designing the same, and optical system having the same

Lens having extended depth of focus, method for designing the same, and optical system having the same

The lens includes a plurality of lens layers, each lens layer being axi-symmetric and having an extended depth of focus to focus light in a corresponding section of a focal curve in the form of a straight line located on an optical axis. In the optical system, light is focused on an optical axis to...

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Hauptverfasser: Getman, Alexander, Lukyanov, Andrey
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Sprache:eng
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creator Getman, Alexander
Lukyanov, Andrey
description The lens includes a plurality of lens layers, each lens layer being axi-symmetric and having an extended depth of focus to focus light in a corresponding section of a focal curve in the form of a straight line located on an optical axis. In the optical system, light is focused on an optical axis to obtain a clear image in a wide distance range between a camera and an object. The optical system has a point spread function that is simpler and more symmetric. That is, the optical system provides improved continuity of a lens surface and easiness and flexibility in optical designing.
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In the optical system, light is focused on an optical axis to obtain a clear image in a wide distance range between a camera and an object. The optical system has a point spread function that is simpler and more symmetric. That is, the optical system provides improved continuity of a lens surface and easiness and flexibility in optical designing.</abstract><oa>free_for_read</oa></addata></record>
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title Lens having extended depth of focus, method for designing the same, and optical system having the same
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