FOCAL LENGTH

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does focal length mean? 

• FOCAL LENGTH (noun)
  The noun FOCAL LENGTH has 1 sense:

1. the distance from a lens to its focus

  Familiarity information: FOCAL LENGTH used as a noun is very rare.

 Dictionary entry details 

• FOCAL LENGTH (noun)

Sense 1

Meaning:

The distance from a lens to its focus

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

focal distance; focal length

Hypernyms ("focal length" is a kind of...):

distance (the property created by the space between two objects or points)

 Context examples 

A unit of measurement of the optical power of a curved mirror or lens represented by the inverse of the focal length in meters.

(Diopter, NCI Thesaurus)