focal lengths (0 synonym found)

We don't have synonyms for focal lengths yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are focal length.

We don't have any synonyms for focal lengths yet.

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focal length

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Definition of focal lengths:

(n) : (optics) A measure of how strongly an optical system converges or diverges light, the inverse of optical power. In the simple case of a single convex lens, it is the distance along the optical axis from the principal plane of the lens to the lens's focal point (where, for instance, the film would be placed in a camera). For more complex or multi-element optical systems, focal length need not correspond to any obvious measurable physical distance.
Definition of focal lengths:

(n) : (optics) A measure of how strongly an optical system converges or diverges light, the inverse of optical power. In the simple case of a single convex lens, it is the distance along the optical axis from the principal plane of the lens to the lens's focal point (where, for instance, the film would be placed in a camera). For more complex or multi-element optical systems, focal length need not correspond to any obvious measurable physical distance.
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