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Book

Focal Length

Vincent D. Tang  1 , Thomas J. Stokkermans  2 , Alice Y. Zhang  3
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Book

Focal Length

Vincent D. Tang et al.
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Excerpt

The concept of focal length is a fundamental pillar in optics, helping elucidate the behavior of light rays and their interactions with optical elements. Focal length is applied in the crafting of lenses in telescopes, cameras, and corrective eyewear for individuals with refractive errors. Focal length governs the convergence or divergence of light rays, dictating the precise point where they either converge to form an image or diverge from an origin.

From the intricate mechanisms of the human eye to the design of advanced imaging systems, understanding focal length holds paramount importance. The following sections will explore the nuances of focal length, its mathematical underpinnings, its manifestations in optical aberrations, and its crucial implications for medical applications.

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Conflict of interest statement

Disclosure: Vincent Tang declares no relevant financial relationships with ineligible companies.

Disclosure: Thomas Stokkermans declares no relevant financial relationships with ineligible companies.

Disclosure: Alice Zhang declares no relevant financial relationships with ineligible companies.

References

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